1 //===- unittest/Format/FormatTest.cpp - Formatting unit tests -------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "FormatTestUtils.h" 11 #include "clang/Format/Format.h" 12 #include "llvm/Support/Debug.h" 13 #include "gtest/gtest.h" 14 15 #define DEBUG_TYPE "format-test" 16 17 namespace clang { 18 namespace format { 19 namespace { 20 21 FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); } 22 23 class FormatTest : public ::testing::Test { 24 protected: 25 enum IncompleteCheck { 26 IC_ExpectComplete, 27 IC_ExpectIncomplete, 28 IC_DoNotCheck 29 }; 30 31 std::string format(llvm::StringRef Code, 32 const FormatStyle &Style = getLLVMStyle(), 33 IncompleteCheck CheckIncomplete = IC_ExpectComplete) { 34 DEBUG(llvm::errs() << "---\n"); 35 DEBUG(llvm::errs() << Code << "\n\n"); 36 std::vector<tooling::Range> Ranges(1, tooling::Range(0, Code.size())); 37 bool IncompleteFormat = false; 38 tooling::Replacements Replaces = 39 reformat(Style, Code, Ranges, "<stdin>", &IncompleteFormat); 40 if (CheckIncomplete != IC_DoNotCheck) { 41 bool ExpectedIncompleteFormat = CheckIncomplete == IC_ExpectIncomplete; 42 EXPECT_EQ(ExpectedIncompleteFormat, IncompleteFormat) << Code << "\n\n"; 43 } 44 ReplacementCount = Replaces.size(); 45 std::string Result = applyAllReplacements(Code, Replaces); 46 EXPECT_NE("", Result); 47 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 48 return Result; 49 } 50 51 FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) { 52 FormatStyle Style = getLLVMStyle(); 53 Style.ColumnLimit = ColumnLimit; 54 return Style; 55 } 56 57 FormatStyle getGoogleStyleWithColumns(unsigned ColumnLimit) { 58 FormatStyle Style = getGoogleStyle(); 59 Style.ColumnLimit = ColumnLimit; 60 return Style; 61 } 62 63 void verifyFormat(llvm::StringRef Code, 64 const FormatStyle &Style = getLLVMStyle()) { 65 EXPECT_EQ(Code.str(), format(test::messUp(Code), Style)); 66 } 67 68 void verifyIncompleteFormat(llvm::StringRef Code, 69 const FormatStyle &Style = getLLVMStyle()) { 70 EXPECT_EQ(Code.str(), 71 format(test::messUp(Code), Style, IC_ExpectIncomplete)); 72 } 73 74 void verifyGoogleFormat(llvm::StringRef Code) { 75 verifyFormat(Code, getGoogleStyle()); 76 } 77 78 void verifyIndependentOfContext(llvm::StringRef text) { 79 verifyFormat(text); 80 verifyFormat(llvm::Twine("void f() { " + text + " }").str()); 81 } 82 83 /// \brief Verify that clang-format does not crash on the given input. 84 void verifyNoCrash(llvm::StringRef Code, 85 const FormatStyle &Style = getLLVMStyle()) { 86 format(Code, Style, IC_DoNotCheck); 87 } 88 89 int ReplacementCount; 90 }; 91 92 TEST_F(FormatTest, MessUp) { 93 EXPECT_EQ("1 2 3", test::messUp("1 2 3")); 94 EXPECT_EQ("1 2 3\n", test::messUp("1\n2\n3\n")); 95 EXPECT_EQ("a\n//b\nc", test::messUp("a\n//b\nc")); 96 EXPECT_EQ("a\n#b\nc", test::messUp("a\n#b\nc")); 97 EXPECT_EQ("a\n#b c d\ne", test::messUp("a\n#b\\\nc\\\nd\ne")); 98 } 99 100 //===----------------------------------------------------------------------===// 101 // Basic function tests. 102 //===----------------------------------------------------------------------===// 103 104 TEST_F(FormatTest, DoesNotChangeCorrectlyFormattedCode) { 105 EXPECT_EQ(";", format(";")); 106 } 107 108 TEST_F(FormatTest, FormatsGlobalStatementsAt0) { 109 EXPECT_EQ("int i;", format(" int i;")); 110 EXPECT_EQ("\nint i;", format(" \n\t \v \f int i;")); 111 EXPECT_EQ("int i;\nint j;", format(" int i; int j;")); 112 EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;")); 113 } 114 115 TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) { 116 EXPECT_EQ("int i;", format("int\ni;")); 117 } 118 119 TEST_F(FormatTest, FormatsNestedBlockStatements) { 120 EXPECT_EQ("{\n {\n {}\n }\n}", format("{{{}}}")); 121 } 122 123 TEST_F(FormatTest, FormatsNestedCall) { 124 verifyFormat("Method(f1, f2(f3));"); 125 verifyFormat("Method(f1(f2, f3()));"); 126 verifyFormat("Method(f1(f2, (f3())));"); 127 } 128 129 TEST_F(FormatTest, NestedNameSpecifiers) { 130 verifyFormat("vector<::Type> v;"); 131 verifyFormat("::ns::SomeFunction(::ns::SomeOtherFunction())"); 132 verifyFormat("static constexpr bool Bar = decltype(bar())::value;"); 133 verifyFormat("bool a = 2 < ::SomeFunction();"); 134 } 135 136 TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) { 137 EXPECT_EQ("if (a) {\n" 138 " f();\n" 139 "}", 140 format("if(a){f();}")); 141 EXPECT_EQ(4, ReplacementCount); 142 EXPECT_EQ("if (a) {\n" 143 " f();\n" 144 "}", 145 format("if (a) {\n" 146 " f();\n" 147 "}")); 148 EXPECT_EQ(0, ReplacementCount); 149 EXPECT_EQ("/*\r\n" 150 "\r\n" 151 "*/\r\n", 152 format("/*\r\n" 153 "\r\n" 154 "*/\r\n")); 155 EXPECT_EQ(0, ReplacementCount); 156 } 157 158 TEST_F(FormatTest, RemovesEmptyLines) { 159 EXPECT_EQ("class C {\n" 160 " int i;\n" 161 "};", 162 format("class C {\n" 163 " int i;\n" 164 "\n" 165 "};")); 166 167 // Don't remove empty lines at the start of namespaces or extern "C" blocks. 168 EXPECT_EQ("namespace N {\n" 169 "\n" 170 "int i;\n" 171 "}", 172 format("namespace N {\n" 173 "\n" 174 "int i;\n" 175 "}", 176 getGoogleStyle())); 177 EXPECT_EQ("extern /**/ \"C\" /**/ {\n" 178 "\n" 179 "int i;\n" 180 "}", 181 format("extern /**/ \"C\" /**/ {\n" 182 "\n" 183 "int i;\n" 184 "}", 185 getGoogleStyle())); 186 187 // ...but do keep inlining and removing empty lines for non-block extern "C" 188 // functions. 189 verifyFormat("extern \"C\" int f() { return 42; }", getGoogleStyle()); 190 EXPECT_EQ("extern \"C\" int f() {\n" 191 " int i = 42;\n" 192 " return i;\n" 193 "}", 194 format("extern \"C\" int f() {\n" 195 "\n" 196 " int i = 42;\n" 197 " return i;\n" 198 "}", 199 getGoogleStyle())); 200 201 // Remove empty lines at the beginning and end of blocks. 202 EXPECT_EQ("void f() {\n" 203 "\n" 204 " if (a) {\n" 205 "\n" 206 " f();\n" 207 " }\n" 208 "}", 209 format("void f() {\n" 210 "\n" 211 " if (a) {\n" 212 "\n" 213 " f();\n" 214 "\n" 215 " }\n" 216 "\n" 217 "}", 218 getLLVMStyle())); 219 EXPECT_EQ("void f() {\n" 220 " if (a) {\n" 221 " f();\n" 222 " }\n" 223 "}", 224 format("void f() {\n" 225 "\n" 226 " if (a) {\n" 227 "\n" 228 " f();\n" 229 "\n" 230 " }\n" 231 "\n" 232 "}", 233 getGoogleStyle())); 234 235 // Don't remove empty lines in more complex control statements. 236 EXPECT_EQ("void f() {\n" 237 " if (a) {\n" 238 " f();\n" 239 "\n" 240 " } else if (b) {\n" 241 " f();\n" 242 " }\n" 243 "}", 244 format("void f() {\n" 245 " if (a) {\n" 246 " f();\n" 247 "\n" 248 " } else if (b) {\n" 249 " f();\n" 250 "\n" 251 " }\n" 252 "\n" 253 "}")); 254 255 // FIXME: This is slightly inconsistent. 256 EXPECT_EQ("namespace {\n" 257 "int i;\n" 258 "}", 259 format("namespace {\n" 260 "int i;\n" 261 "\n" 262 "}")); 263 EXPECT_EQ("namespace {\n" 264 "int i;\n" 265 "\n" 266 "} // namespace", 267 format("namespace {\n" 268 "int i;\n" 269 "\n" 270 "} // namespace")); 271 } 272 273 TEST_F(FormatTest, RecognizesBinaryOperatorKeywords) { 274 verifyFormat("x = (a) and (b);"); 275 verifyFormat("x = (a) or (b);"); 276 verifyFormat("x = (a) bitand (b);"); 277 verifyFormat("x = (a) bitor (b);"); 278 verifyFormat("x = (a) not_eq (b);"); 279 verifyFormat("x = (a) and_eq (b);"); 280 verifyFormat("x = (a) or_eq (b);"); 281 verifyFormat("x = (a) xor (b);"); 282 } 283 284 //===----------------------------------------------------------------------===// 285 // Tests for control statements. 286 //===----------------------------------------------------------------------===// 287 288 TEST_F(FormatTest, FormatIfWithoutCompoundStatement) { 289 verifyFormat("if (true)\n f();\ng();"); 290 verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();"); 291 verifyFormat("if (a)\n if (b) {\n f();\n }\ng();"); 292 293 FormatStyle AllowsMergedIf = getLLVMStyle(); 294 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 295 verifyFormat("if (a)\n" 296 " // comment\n" 297 " f();", 298 AllowsMergedIf); 299 verifyFormat("if (a)\n" 300 " ;", 301 AllowsMergedIf); 302 verifyFormat("if (a)\n" 303 " if (b) return;", 304 AllowsMergedIf); 305 306 verifyFormat("if (a) // Can't merge this\n" 307 " f();\n", 308 AllowsMergedIf); 309 verifyFormat("if (a) /* still don't merge */\n" 310 " f();", 311 AllowsMergedIf); 312 verifyFormat("if (a) { // Never merge this\n" 313 " f();\n" 314 "}", 315 AllowsMergedIf); 316 verifyFormat("if (a) { /* Never merge this */\n" 317 " f();\n" 318 "}", 319 AllowsMergedIf); 320 321 AllowsMergedIf.ColumnLimit = 14; 322 verifyFormat("if (a) return;", AllowsMergedIf); 323 verifyFormat("if (aaaaaaaaa)\n" 324 " return;", 325 AllowsMergedIf); 326 327 AllowsMergedIf.ColumnLimit = 13; 328 verifyFormat("if (a)\n return;", AllowsMergedIf); 329 } 330 331 TEST_F(FormatTest, FormatLoopsWithoutCompoundStatement) { 332 FormatStyle AllowsMergedLoops = getLLVMStyle(); 333 AllowsMergedLoops.AllowShortLoopsOnASingleLine = true; 334 verifyFormat("while (true) continue;", AllowsMergedLoops); 335 verifyFormat("for (;;) continue;", AllowsMergedLoops); 336 verifyFormat("for (int &v : vec) v *= 2;", AllowsMergedLoops); 337 verifyFormat("while (true)\n" 338 " ;", 339 AllowsMergedLoops); 340 verifyFormat("for (;;)\n" 341 " ;", 342 AllowsMergedLoops); 343 verifyFormat("for (;;)\n" 344 " for (;;) continue;", 345 AllowsMergedLoops); 346 verifyFormat("for (;;) // Can't merge this\n" 347 " continue;", 348 AllowsMergedLoops); 349 verifyFormat("for (;;) /* still don't merge */\n" 350 " continue;", 351 AllowsMergedLoops); 352 } 353 354 TEST_F(FormatTest, FormatShortBracedStatements) { 355 FormatStyle AllowSimpleBracedStatements = getLLVMStyle(); 356 AllowSimpleBracedStatements.AllowShortBlocksOnASingleLine = true; 357 358 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = true; 359 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = true; 360 361 verifyFormat("if (true) {}", AllowSimpleBracedStatements); 362 verifyFormat("while (true) {}", AllowSimpleBracedStatements); 363 verifyFormat("for (;;) {}", AllowSimpleBracedStatements); 364 verifyFormat("if (true) { f(); }", AllowSimpleBracedStatements); 365 verifyFormat("while (true) { f(); }", AllowSimpleBracedStatements); 366 verifyFormat("for (;;) { f(); }", AllowSimpleBracedStatements); 367 verifyFormat("if (true) { //\n" 368 " f();\n" 369 "}", 370 AllowSimpleBracedStatements); 371 verifyFormat("if (true) {\n" 372 " f();\n" 373 " f();\n" 374 "}", 375 AllowSimpleBracedStatements); 376 verifyFormat("if (true) {\n" 377 " f();\n" 378 "} else {\n" 379 " f();\n" 380 "}", 381 AllowSimpleBracedStatements); 382 383 verifyFormat("template <int> struct A2 {\n" 384 " struct B {};\n" 385 "};", 386 AllowSimpleBracedStatements); 387 388 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = false; 389 verifyFormat("if (true) {\n" 390 " f();\n" 391 "}", 392 AllowSimpleBracedStatements); 393 verifyFormat("if (true) {\n" 394 " f();\n" 395 "} else {\n" 396 " f();\n" 397 "}", 398 AllowSimpleBracedStatements); 399 400 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = false; 401 verifyFormat("while (true) {\n" 402 " f();\n" 403 "}", 404 AllowSimpleBracedStatements); 405 verifyFormat("for (;;) {\n" 406 " f();\n" 407 "}", 408 AllowSimpleBracedStatements); 409 } 410 411 TEST_F(FormatTest, ParseIfElse) { 412 verifyFormat("if (true)\n" 413 " if (true)\n" 414 " if (true)\n" 415 " f();\n" 416 " else\n" 417 " g();\n" 418 " else\n" 419 " h();\n" 420 "else\n" 421 " i();"); 422 verifyFormat("if (true)\n" 423 " if (true)\n" 424 " if (true) {\n" 425 " if (true)\n" 426 " f();\n" 427 " } else {\n" 428 " g();\n" 429 " }\n" 430 " else\n" 431 " h();\n" 432 "else {\n" 433 " i();\n" 434 "}"); 435 verifyFormat("void f() {\n" 436 " if (a) {\n" 437 " } else {\n" 438 " }\n" 439 "}"); 440 } 441 442 TEST_F(FormatTest, ElseIf) { 443 verifyFormat("if (a) {\n} else if (b) {\n}"); 444 verifyFormat("if (a)\n" 445 " f();\n" 446 "else if (b)\n" 447 " g();\n" 448 "else\n" 449 " h();"); 450 verifyFormat("if (a) {\n" 451 " f();\n" 452 "}\n" 453 "// or else ..\n" 454 "else {\n" 455 " g()\n" 456 "}"); 457 458 verifyFormat("if (a) {\n" 459 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 460 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 461 "}"); 462 verifyFormat("if (a) {\n" 463 "} else if (\n" 464 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 465 "}", 466 getLLVMStyleWithColumns(62)); 467 } 468 469 TEST_F(FormatTest, FormatsForLoop) { 470 verifyFormat( 471 "for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n" 472 " ++VeryVeryLongLoopVariable)\n" 473 " ;"); 474 verifyFormat("for (;;)\n" 475 " f();"); 476 verifyFormat("for (;;) {\n}"); 477 verifyFormat("for (;;) {\n" 478 " f();\n" 479 "}"); 480 verifyFormat("for (int i = 0; (i < 10); ++i) {\n}"); 481 482 verifyFormat( 483 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 484 " E = UnwrappedLines.end();\n" 485 " I != E; ++I) {\n}"); 486 487 verifyFormat( 488 "for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n" 489 " ++IIIII) {\n}"); 490 verifyFormat("for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =\n" 491 " aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;\n" 492 " aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {\n}"); 493 verifyFormat("for (llvm::ArrayRef<NamedDecl *>::iterator\n" 494 " I = FD->getDeclsInPrototypeScope().begin(),\n" 495 " E = FD->getDeclsInPrototypeScope().end();\n" 496 " I != E; ++I) {\n}"); 497 verifyFormat("for (SmallVectorImpl<TemplateIdAnnotationn *>::iterator\n" 498 " I = Container.begin(),\n" 499 " E = Container.end();\n" 500 " I != E; ++I) {\n}", 501 getLLVMStyleWithColumns(76)); 502 503 verifyFormat( 504 "for (aaaaaaaaaaaaaaaaa aaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 505 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=\n" 506 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 507 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 508 " ++aaaaaaaaaaa) {\n}"); 509 verifyFormat("for (int i = 0; i < aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 510 " bbbbbbbbbbbbbbbbbbbb < ccccccccccccccc;\n" 511 " ++i) {\n}"); 512 verifyFormat("for (int aaaaaaaaaaa = 1; aaaaaaaaaaa <= bbbbbbbbbbbbbbb;\n" 513 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 514 "}"); 515 verifyFormat("for (some_namespace::SomeIterator iter( // force break\n" 516 " aaaaaaaaaa);\n" 517 " iter; ++iter) {\n" 518 "}"); 519 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 520 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 521 " aaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbbbbbbb;\n" 522 " ++aaaaaaaaaaaaaaaaaaaaaaaaaaa) {"); 523 524 FormatStyle NoBinPacking = getLLVMStyle(); 525 NoBinPacking.BinPackParameters = false; 526 verifyFormat("for (int aaaaaaaaaaa = 1;\n" 527 " aaaaaaaaaaa <= aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa,\n" 528 " aaaaaaaaaaaaaaaa,\n" 529 " aaaaaaaaaaaaaaaa,\n" 530 " aaaaaaaaaaaaaaaa);\n" 531 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 532 "}", 533 NoBinPacking); 534 verifyFormat( 535 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 536 " E = UnwrappedLines.end();\n" 537 " I != E;\n" 538 " ++I) {\n}", 539 NoBinPacking); 540 } 541 542 TEST_F(FormatTest, RangeBasedForLoops) { 543 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 544 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 545 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaa :\n" 546 " aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)) {\n}"); 547 verifyFormat("for (const aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaa :\n" 548 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 549 verifyFormat("for (aaaaaaaaa aaaaaaaaaaaaaaaaaaaaa :\n" 550 " aaaaaaaaaaaa.aaaaaaaaaaaa().aaaaaaaaa().a()) {\n}"); 551 } 552 553 TEST_F(FormatTest, ForEachLoops) { 554 verifyFormat("void f() {\n" 555 " foreach (Item *item, itemlist) {}\n" 556 " Q_FOREACH (Item *item, itemlist) {}\n" 557 " BOOST_FOREACH (Item *item, itemlist) {}\n" 558 " UNKNOWN_FORACH(Item * item, itemlist) {}\n" 559 "}"); 560 561 // As function-like macros. 562 verifyFormat("#define foreach(x, y)\n" 563 "#define Q_FOREACH(x, y)\n" 564 "#define BOOST_FOREACH(x, y)\n" 565 "#define UNKNOWN_FOREACH(x, y)\n"); 566 567 // Not as function-like macros. 568 verifyFormat("#define foreach (x, y)\n" 569 "#define Q_FOREACH (x, y)\n" 570 "#define BOOST_FOREACH (x, y)\n" 571 "#define UNKNOWN_FOREACH (x, y)\n"); 572 } 573 574 TEST_F(FormatTest, FormatsWhileLoop) { 575 verifyFormat("while (true) {\n}"); 576 verifyFormat("while (true)\n" 577 " f();"); 578 verifyFormat("while () {\n}"); 579 verifyFormat("while () {\n" 580 " f();\n" 581 "}"); 582 } 583 584 TEST_F(FormatTest, FormatsDoWhile) { 585 verifyFormat("do {\n" 586 " do_something();\n" 587 "} while (something());"); 588 verifyFormat("do\n" 589 " do_something();\n" 590 "while (something());"); 591 } 592 593 TEST_F(FormatTest, FormatsSwitchStatement) { 594 verifyFormat("switch (x) {\n" 595 "case 1:\n" 596 " f();\n" 597 " break;\n" 598 "case kFoo:\n" 599 "case ns::kBar:\n" 600 "case kBaz:\n" 601 " break;\n" 602 "default:\n" 603 " g();\n" 604 " break;\n" 605 "}"); 606 verifyFormat("switch (x) {\n" 607 "case 1: {\n" 608 " f();\n" 609 " break;\n" 610 "}\n" 611 "case 2: {\n" 612 " break;\n" 613 "}\n" 614 "}"); 615 verifyFormat("switch (x) {\n" 616 "case 1: {\n" 617 " f();\n" 618 " {\n" 619 " g();\n" 620 " h();\n" 621 " }\n" 622 " break;\n" 623 "}\n" 624 "}"); 625 verifyFormat("switch (x) {\n" 626 "case 1: {\n" 627 " f();\n" 628 " if (foo) {\n" 629 " g();\n" 630 " h();\n" 631 " }\n" 632 " break;\n" 633 "}\n" 634 "}"); 635 verifyFormat("switch (x) {\n" 636 "case 1: {\n" 637 " f();\n" 638 " g();\n" 639 "} break;\n" 640 "}"); 641 verifyFormat("switch (test)\n" 642 " ;"); 643 verifyFormat("switch (x) {\n" 644 "default: {\n" 645 " // Do nothing.\n" 646 "}\n" 647 "}"); 648 verifyFormat("switch (x) {\n" 649 "// comment\n" 650 "// if 1, do f()\n" 651 "case 1:\n" 652 " f();\n" 653 "}"); 654 verifyFormat("switch (x) {\n" 655 "case 1:\n" 656 " // Do amazing stuff\n" 657 " {\n" 658 " f();\n" 659 " g();\n" 660 " }\n" 661 " break;\n" 662 "}"); 663 verifyFormat("#define A \\\n" 664 " switch (x) { \\\n" 665 " case a: \\\n" 666 " foo = b; \\\n" 667 " }", 668 getLLVMStyleWithColumns(20)); 669 verifyFormat("#define OPERATION_CASE(name) \\\n" 670 " case OP_name: \\\n" 671 " return operations::Operation##name\n", 672 getLLVMStyleWithColumns(40)); 673 verifyFormat("switch (x) {\n" 674 "case 1:;\n" 675 "default:;\n" 676 " int i;\n" 677 "}"); 678 679 verifyGoogleFormat("switch (x) {\n" 680 " case 1:\n" 681 " f();\n" 682 " break;\n" 683 " case kFoo:\n" 684 " case ns::kBar:\n" 685 " case kBaz:\n" 686 " break;\n" 687 " default:\n" 688 " g();\n" 689 " break;\n" 690 "}"); 691 verifyGoogleFormat("switch (x) {\n" 692 " case 1: {\n" 693 " f();\n" 694 " break;\n" 695 " }\n" 696 "}"); 697 verifyGoogleFormat("switch (test)\n" 698 " ;"); 699 700 verifyGoogleFormat("#define OPERATION_CASE(name) \\\n" 701 " case OP_name: \\\n" 702 " return operations::Operation##name\n"); 703 verifyGoogleFormat("Operation codeToOperation(OperationCode OpCode) {\n" 704 " // Get the correction operation class.\n" 705 " switch (OpCode) {\n" 706 " CASE(Add);\n" 707 " CASE(Subtract);\n" 708 " default:\n" 709 " return operations::Unknown;\n" 710 " }\n" 711 "#undef OPERATION_CASE\n" 712 "}"); 713 verifyFormat("DEBUG({\n" 714 " switch (x) {\n" 715 " case A:\n" 716 " f();\n" 717 " break;\n" 718 " // On B:\n" 719 " case B:\n" 720 " g();\n" 721 " break;\n" 722 " }\n" 723 "});"); 724 verifyFormat("switch (a) {\n" 725 "case (b):\n" 726 " return;\n" 727 "}"); 728 729 verifyFormat("switch (a) {\n" 730 "case some_namespace::\n" 731 " some_constant:\n" 732 " return;\n" 733 "}", 734 getLLVMStyleWithColumns(34)); 735 } 736 737 TEST_F(FormatTest, CaseRanges) { 738 verifyFormat("switch (x) {\n" 739 "case 'A' ... 'Z':\n" 740 "case 1 ... 5:\n" 741 " break;\n" 742 "}"); 743 } 744 745 TEST_F(FormatTest, ShortCaseLabels) { 746 FormatStyle Style = getLLVMStyle(); 747 Style.AllowShortCaseLabelsOnASingleLine = true; 748 verifyFormat("switch (a) {\n" 749 "case 1: x = 1; break;\n" 750 "case 2: return;\n" 751 "case 3:\n" 752 "case 4:\n" 753 "case 5: return;\n" 754 "case 6: // comment\n" 755 " return;\n" 756 "case 7:\n" 757 " // comment\n" 758 " return;\n" 759 "case 8:\n" 760 " x = 8; // comment\n" 761 " break;\n" 762 "default: y = 1; break;\n" 763 "}", 764 Style); 765 verifyFormat("switch (a) {\n" 766 "#if FOO\n" 767 "case 0: return 0;\n" 768 "#endif\n" 769 "}", 770 Style); 771 verifyFormat("switch (a) {\n" 772 "case 1: {\n" 773 "}\n" 774 "case 2: {\n" 775 " return;\n" 776 "}\n" 777 "case 3: {\n" 778 " x = 1;\n" 779 " return;\n" 780 "}\n" 781 "case 4:\n" 782 " if (x)\n" 783 " return;\n" 784 "}", 785 Style); 786 Style.ColumnLimit = 21; 787 verifyFormat("switch (a) {\n" 788 "case 1: x = 1; break;\n" 789 "case 2: return;\n" 790 "case 3:\n" 791 "case 4:\n" 792 "case 5: return;\n" 793 "default:\n" 794 " y = 1;\n" 795 " break;\n" 796 "}", 797 Style); 798 } 799 800 TEST_F(FormatTest, FormatsLabels) { 801 verifyFormat("void f() {\n" 802 " some_code();\n" 803 "test_label:\n" 804 " some_other_code();\n" 805 " {\n" 806 " some_more_code();\n" 807 " another_label:\n" 808 " some_more_code();\n" 809 " }\n" 810 "}"); 811 verifyFormat("{\n" 812 " some_code();\n" 813 "test_label:\n" 814 " some_other_code();\n" 815 "}"); 816 verifyFormat("{\n" 817 " some_code();\n" 818 "test_label:;\n" 819 " int i = 0;\n" 820 "}"); 821 } 822 823 //===----------------------------------------------------------------------===// 824 // Tests for comments. 825 //===----------------------------------------------------------------------===// 826 827 TEST_F(FormatTest, UnderstandsSingleLineComments) { 828 verifyFormat("//* */"); 829 verifyFormat("// line 1\n" 830 "// line 2\n" 831 "void f() {}\n"); 832 833 verifyFormat("void f() {\n" 834 " // Doesn't do anything\n" 835 "}"); 836 verifyFormat("SomeObject\n" 837 " // Calling someFunction on SomeObject\n" 838 " .someFunction();"); 839 verifyFormat("auto result = SomeObject\n" 840 " // Calling someFunction on SomeObject\n" 841 " .someFunction();"); 842 verifyFormat("void f(int i, // some comment (probably for i)\n" 843 " int j, // some comment (probably for j)\n" 844 " int k); // some comment (probably for k)"); 845 verifyFormat("void f(int i,\n" 846 " // some comment (probably for j)\n" 847 " int j,\n" 848 " // some comment (probably for k)\n" 849 " int k);"); 850 851 verifyFormat("int i // This is a fancy variable\n" 852 " = 5; // with nicely aligned comment."); 853 854 verifyFormat("// Leading comment.\n" 855 "int a; // Trailing comment."); 856 verifyFormat("int a; // Trailing comment\n" 857 " // on 2\n" 858 " // or 3 lines.\n" 859 "int b;"); 860 verifyFormat("int a; // Trailing comment\n" 861 "\n" 862 "// Leading comment.\n" 863 "int b;"); 864 verifyFormat("int a; // Comment.\n" 865 " // More details.\n" 866 "int bbbb; // Another comment."); 867 verifyFormat( 868 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 869 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // comment\n" 870 "int cccccccccccccccccccccccccccccc; // comment\n" 871 "int ddd; // looooooooooooooooooooooooong comment\n" 872 "int aaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 873 "int bbbbbbbbbbbbbbbbbbbbb; // comment\n" 874 "int ccccccccccccccccccc; // comment"); 875 876 verifyFormat("#include \"a\" // comment\n" 877 "#include \"a/b/c\" // comment"); 878 verifyFormat("#include <a> // comment\n" 879 "#include <a/b/c> // comment"); 880 EXPECT_EQ("#include \"a\" // comment\n" 881 "#include \"a/b/c\" // comment", 882 format("#include \\\n" 883 " \"a\" // comment\n" 884 "#include \"a/b/c\" // comment")); 885 886 verifyFormat("enum E {\n" 887 " // comment\n" 888 " VAL_A, // comment\n" 889 " VAL_B\n" 890 "};"); 891 892 verifyFormat( 893 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 894 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // Trailing comment"); 895 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 896 " // Comment inside a statement.\n" 897 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 898 verifyFormat("SomeFunction(a,\n" 899 " // comment\n" 900 " b + x);"); 901 verifyFormat("SomeFunction(a, a,\n" 902 " // comment\n" 903 " b + x);"); 904 verifyFormat( 905 "bool aaaaaaaaaaaaa = // comment\n" 906 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 907 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 908 909 verifyFormat("int aaaa; // aaaaa\n" 910 "int aa; // aaaaaaa", 911 getLLVMStyleWithColumns(20)); 912 913 EXPECT_EQ("void f() { // This does something ..\n" 914 "}\n" 915 "int a; // This is unrelated", 916 format("void f() { // This does something ..\n" 917 " }\n" 918 "int a; // This is unrelated")); 919 EXPECT_EQ("class C {\n" 920 " void f() { // This does something ..\n" 921 " } // awesome..\n" 922 "\n" 923 " int a; // This is unrelated\n" 924 "};", 925 format("class C{void f() { // This does something ..\n" 926 " } // awesome..\n" 927 " \n" 928 "int a; // This is unrelated\n" 929 "};")); 930 931 EXPECT_EQ("int i; // single line trailing comment", 932 format("int i;\\\n// single line trailing comment")); 933 934 verifyGoogleFormat("int a; // Trailing comment."); 935 936 verifyFormat("someFunction(anotherFunction( // Force break.\n" 937 " parameter));"); 938 939 verifyGoogleFormat("#endif // HEADER_GUARD"); 940 941 verifyFormat("const char *test[] = {\n" 942 " // A\n" 943 " \"aaaa\",\n" 944 " // B\n" 945 " \"aaaaa\"};"); 946 verifyGoogleFormat( 947 "aaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 948 " aaaaaaaaaaaaaaaaaaaaaa); // 81_cols_with_this_comment"); 949 EXPECT_EQ("D(a, {\n" 950 " // test\n" 951 " int a;\n" 952 "});", 953 format("D(a, {\n" 954 "// test\n" 955 "int a;\n" 956 "});")); 957 958 EXPECT_EQ("lineWith(); // comment\n" 959 "// at start\n" 960 "otherLine();", 961 format("lineWith(); // comment\n" 962 "// at start\n" 963 "otherLine();")); 964 EXPECT_EQ("lineWith(); // comment\n" 965 " // at start\n" 966 "otherLine();", 967 format("lineWith(); // comment\n" 968 " // at start\n" 969 "otherLine();")); 970 971 EXPECT_EQ("lineWith(); // comment\n" 972 "// at start\n" 973 "otherLine(); // comment", 974 format("lineWith(); // comment\n" 975 "// at start\n" 976 "otherLine(); // comment")); 977 EXPECT_EQ("lineWith();\n" 978 "// at start\n" 979 "otherLine(); // comment", 980 format("lineWith();\n" 981 " // at start\n" 982 "otherLine(); // comment")); 983 EXPECT_EQ("// first\n" 984 "// at start\n" 985 "otherLine(); // comment", 986 format("// first\n" 987 " // at start\n" 988 "otherLine(); // comment")); 989 EXPECT_EQ("f();\n" 990 "// first\n" 991 "// at start\n" 992 "otherLine(); // comment", 993 format("f();\n" 994 "// first\n" 995 " // at start\n" 996 "otherLine(); // comment")); 997 verifyFormat("f(); // comment\n" 998 "// first\n" 999 "// at start\n" 1000 "otherLine();"); 1001 EXPECT_EQ("f(); // comment\n" 1002 "// first\n" 1003 "// at start\n" 1004 "otherLine();", 1005 format("f(); // comment\n" 1006 "// first\n" 1007 " // at start\n" 1008 "otherLine();")); 1009 EXPECT_EQ("f(); // comment\n" 1010 " // first\n" 1011 "// at start\n" 1012 "otherLine();", 1013 format("f(); // comment\n" 1014 " // first\n" 1015 "// at start\n" 1016 "otherLine();")); 1017 EXPECT_EQ("void f() {\n" 1018 " lineWith(); // comment\n" 1019 " // at start\n" 1020 "}", 1021 format("void f() {\n" 1022 " lineWith(); // comment\n" 1023 " // at start\n" 1024 "}")); 1025 1026 verifyFormat("#define A \\\n" 1027 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1028 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1029 getLLVMStyleWithColumns(60)); 1030 verifyFormat( 1031 "#define A \\\n" 1032 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1033 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1034 getLLVMStyleWithColumns(61)); 1035 1036 verifyFormat("if ( // This is some comment\n" 1037 " x + 3) {\n" 1038 "}"); 1039 EXPECT_EQ("if ( // This is some comment\n" 1040 " // spanning two lines\n" 1041 " x + 3) {\n" 1042 "}", 1043 format("if( // This is some comment\n" 1044 " // spanning two lines\n" 1045 " x + 3) {\n" 1046 "}")); 1047 1048 verifyNoCrash("/\\\n/"); 1049 verifyNoCrash("/\\\n* */"); 1050 // The 0-character somehow makes the lexer return a proper comment. 1051 verifyNoCrash(StringRef("/*\\\0\n/", 6)); 1052 } 1053 1054 TEST_F(FormatTest, KeepsParameterWithTrailingCommentsOnTheirOwnLine) { 1055 EXPECT_EQ("SomeFunction(a,\n" 1056 " b, // comment\n" 1057 " c);", 1058 format("SomeFunction(a,\n" 1059 " b, // comment\n" 1060 " c);")); 1061 EXPECT_EQ("SomeFunction(a, b,\n" 1062 " // comment\n" 1063 " c);", 1064 format("SomeFunction(a,\n" 1065 " b,\n" 1066 " // comment\n" 1067 " c);")); 1068 EXPECT_EQ("SomeFunction(a, b, // comment (unclear relation)\n" 1069 " c);", 1070 format("SomeFunction(a, b, // comment (unclear relation)\n" 1071 " c);")); 1072 EXPECT_EQ("SomeFunction(a, // comment\n" 1073 " b,\n" 1074 " c); // comment", 1075 format("SomeFunction(a, // comment\n" 1076 " b,\n" 1077 " c); // comment")); 1078 } 1079 1080 TEST_F(FormatTest, RemovesTrailingWhitespaceOfComments) { 1081 EXPECT_EQ("// comment", format("// comment ")); 1082 EXPECT_EQ("int aaaaaaa, bbbbbbb; // comment", 1083 format("int aaaaaaa, bbbbbbb; // comment ", 1084 getLLVMStyleWithColumns(33))); 1085 EXPECT_EQ("// comment\\\n", format("// comment\\\n \t \v \f ")); 1086 EXPECT_EQ("// comment \\\n", format("// comment \\\n \t \v \f ")); 1087 } 1088 1089 TEST_F(FormatTest, UnderstandsBlockComments) { 1090 verifyFormat("f(/*noSpaceAfterParameterNamingComment=*/true);"); 1091 verifyFormat("void f() { g(/*aaa=*/x, /*bbb=*/!y); }"); 1092 EXPECT_EQ("f(aaaaaaaaaaaaaaaaaaaaaaaaa, /* Trailing comment for aa... */\n" 1093 " bbbbbbbbbbbbbbbbbbbbbbbbb);", 1094 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \\\n" 1095 "/* Trailing comment for aa... */\n" 1096 " bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1097 EXPECT_EQ( 1098 "f(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1099 " /* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);", 1100 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \n" 1101 "/* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1102 EXPECT_EQ( 1103 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1104 " aaaaaaaaaaaaaaaaaa,\n" 1105 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1106 "}", 1107 format("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1108 " aaaaaaaaaaaaaaaaaa ,\n" 1109 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1110 "}")); 1111 1112 FormatStyle NoBinPacking = getLLVMStyle(); 1113 NoBinPacking.BinPackParameters = false; 1114 verifyFormat("aaaaaaaa(/* parameter 1 */ aaaaaa,\n" 1115 " /* parameter 2 */ aaaaaa,\n" 1116 " /* parameter 3 */ aaaaaa,\n" 1117 " /* parameter 4 */ aaaaaa);", 1118 NoBinPacking); 1119 1120 // Aligning block comments in macros. 1121 verifyGoogleFormat("#define A \\\n" 1122 " int i; /*a*/ \\\n" 1123 " int jjj; /*b*/"); 1124 } 1125 1126 TEST_F(FormatTest, AlignsBlockComments) { 1127 EXPECT_EQ("/*\n" 1128 " * Really multi-line\n" 1129 " * comment.\n" 1130 " */\n" 1131 "void f() {}", 1132 format(" /*\n" 1133 " * Really multi-line\n" 1134 " * comment.\n" 1135 " */\n" 1136 " void f() {}")); 1137 EXPECT_EQ("class C {\n" 1138 " /*\n" 1139 " * Another multi-line\n" 1140 " * comment.\n" 1141 " */\n" 1142 " void f() {}\n" 1143 "};", 1144 format("class C {\n" 1145 "/*\n" 1146 " * Another multi-line\n" 1147 " * comment.\n" 1148 " */\n" 1149 "void f() {}\n" 1150 "};")); 1151 EXPECT_EQ("/*\n" 1152 " 1. This is a comment with non-trivial formatting.\n" 1153 " 1.1. We have to indent/outdent all lines equally\n" 1154 " 1.1.1. to keep the formatting.\n" 1155 " */", 1156 format(" /*\n" 1157 " 1. This is a comment with non-trivial formatting.\n" 1158 " 1.1. We have to indent/outdent all lines equally\n" 1159 " 1.1.1. to keep the formatting.\n" 1160 " */")); 1161 EXPECT_EQ("/*\n" 1162 "Don't try to outdent if there's not enough indentation.\n" 1163 "*/", 1164 format(" /*\n" 1165 " Don't try to outdent if there's not enough indentation.\n" 1166 " */")); 1167 1168 EXPECT_EQ("int i; /* Comment with empty...\n" 1169 " *\n" 1170 " * line. */", 1171 format("int i; /* Comment with empty...\n" 1172 " *\n" 1173 " * line. */")); 1174 EXPECT_EQ("int foobar = 0; /* comment */\n" 1175 "int bar = 0; /* multiline\n" 1176 " comment 1 */\n" 1177 "int baz = 0; /* multiline\n" 1178 " comment 2 */\n" 1179 "int bzz = 0; /* multiline\n" 1180 " comment 3 */", 1181 format("int foobar = 0; /* comment */\n" 1182 "int bar = 0; /* multiline\n" 1183 " comment 1 */\n" 1184 "int baz = 0; /* multiline\n" 1185 " comment 2 */\n" 1186 "int bzz = 0; /* multiline\n" 1187 " comment 3 */")); 1188 EXPECT_EQ("int foobar = 0; /* comment */\n" 1189 "int bar = 0; /* multiline\n" 1190 " comment */\n" 1191 "int baz = 0; /* multiline\n" 1192 "comment */", 1193 format("int foobar = 0; /* comment */\n" 1194 "int bar = 0; /* multiline\n" 1195 "comment */\n" 1196 "int baz = 0; /* multiline\n" 1197 "comment */")); 1198 } 1199 1200 TEST_F(FormatTest, CommentReflowingCanBeTurnedOff) { 1201 FormatStyle Style = getLLVMStyleWithColumns(20); 1202 Style.ReflowComments = false; 1203 verifyFormat("// aaaaaaaaa aaaaaaaaaa aaaaaaaaaa", Style); 1204 verifyFormat("/* aaaaaaaaa aaaaaaaaaa aaaaaaaaaa */", Style); 1205 } 1206 1207 TEST_F(FormatTest, CorrectlyHandlesLengthOfBlockComments) { 1208 EXPECT_EQ("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1209 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */", 1210 format("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1211 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */")); 1212 EXPECT_EQ( 1213 "void ffffffffffff(\n" 1214 " int aaaaaaaa, int bbbbbbbb,\n" 1215 " int cccccccccccc) { /*\n" 1216 " aaaaaaaaaa\n" 1217 " aaaaaaaaaaaaa\n" 1218 " bbbbbbbbbbbbbb\n" 1219 " bbbbbbbbbb\n" 1220 " */\n" 1221 "}", 1222 format("void ffffffffffff(int aaaaaaaa, int bbbbbbbb, int cccccccccccc)\n" 1223 "{ /*\n" 1224 " aaaaaaaaaa aaaaaaaaaaaaa\n" 1225 " bbbbbbbbbbbbbb bbbbbbbbbb\n" 1226 " */\n" 1227 "}", 1228 getLLVMStyleWithColumns(40))); 1229 } 1230 1231 TEST_F(FormatTest, DontBreakNonTrailingBlockComments) { 1232 EXPECT_EQ("void ffffffffff(\n" 1233 " int aaaaa /* test */);", 1234 format("void ffffffffff(int aaaaa /* test */);", 1235 getLLVMStyleWithColumns(35))); 1236 } 1237 1238 TEST_F(FormatTest, SplitsLongCxxComments) { 1239 EXPECT_EQ("// A comment that\n" 1240 "// doesn't fit on\n" 1241 "// one line", 1242 format("// A comment that doesn't fit on one line", 1243 getLLVMStyleWithColumns(20))); 1244 EXPECT_EQ("/// A comment that\n" 1245 "/// doesn't fit on\n" 1246 "/// one line", 1247 format("/// A comment that doesn't fit on one line", 1248 getLLVMStyleWithColumns(20))); 1249 EXPECT_EQ("//! A comment that\n" 1250 "//! doesn't fit on\n" 1251 "//! one line", 1252 format("//! A comment that doesn't fit on one line", 1253 getLLVMStyleWithColumns(20))); 1254 EXPECT_EQ("// a b c d\n" 1255 "// e f g\n" 1256 "// h i j k", 1257 format("// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1258 EXPECT_EQ( 1259 "// a b c d\n" 1260 "// e f g\n" 1261 "// h i j k", 1262 format("\\\n// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1263 EXPECT_EQ("if (true) // A comment that\n" 1264 " // doesn't fit on\n" 1265 " // one line", 1266 format("if (true) // A comment that doesn't fit on one line ", 1267 getLLVMStyleWithColumns(30))); 1268 EXPECT_EQ("// Don't_touch_leading_whitespace", 1269 format("// Don't_touch_leading_whitespace", 1270 getLLVMStyleWithColumns(20))); 1271 EXPECT_EQ("// Add leading\n" 1272 "// whitespace", 1273 format("//Add leading whitespace", getLLVMStyleWithColumns(20))); 1274 EXPECT_EQ("/// Add leading\n" 1275 "/// whitespace", 1276 format("///Add leading whitespace", getLLVMStyleWithColumns(20))); 1277 EXPECT_EQ("//! Add leading\n" 1278 "//! whitespace", 1279 format("//!Add leading whitespace", getLLVMStyleWithColumns(20))); 1280 EXPECT_EQ("// whitespace", format("//whitespace", getLLVMStyle())); 1281 EXPECT_EQ("// Even if it makes the line exceed the column\n" 1282 "// limit", 1283 format("//Even if it makes the line exceed the column limit", 1284 getLLVMStyleWithColumns(51))); 1285 EXPECT_EQ("//--But not here", format("//--But not here", getLLVMStyle())); 1286 1287 EXPECT_EQ("// aa bb cc dd", 1288 format("// aa bb cc dd ", 1289 getLLVMStyleWithColumns(15))); 1290 1291 EXPECT_EQ("// A comment before\n" 1292 "// a macro\n" 1293 "// definition\n" 1294 "#define a b", 1295 format("// A comment before a macro definition\n" 1296 "#define a b", 1297 getLLVMStyleWithColumns(20))); 1298 EXPECT_EQ("void ffffff(\n" 1299 " int aaaaaaaaa, // wwww\n" 1300 " int bbbbbbbbbb, // xxxxxxx\n" 1301 " // yyyyyyyyyy\n" 1302 " int c, int d, int e) {}", 1303 format("void ffffff(\n" 1304 " int aaaaaaaaa, // wwww\n" 1305 " int bbbbbbbbbb, // xxxxxxx yyyyyyyyyy\n" 1306 " int c, int d, int e) {}", 1307 getLLVMStyleWithColumns(40))); 1308 EXPECT_EQ("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1309 format("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1310 getLLVMStyleWithColumns(20))); 1311 EXPECT_EQ( 1312 "#define XXX // a b c d\n" 1313 " // e f g h", 1314 format("#define XXX // a b c d e f g h", getLLVMStyleWithColumns(22))); 1315 EXPECT_EQ( 1316 "#define XXX // q w e r\n" 1317 " // t y u i", 1318 format("#define XXX //q w e r t y u i", getLLVMStyleWithColumns(22))); 1319 } 1320 1321 TEST_F(FormatTest, PreservesHangingIndentInCxxComments) { 1322 EXPECT_EQ("// A comment\n" 1323 "// that doesn't\n" 1324 "// fit on one\n" 1325 "// line", 1326 format("// A comment that doesn't fit on one line", 1327 getLLVMStyleWithColumns(20))); 1328 EXPECT_EQ("/// A comment\n" 1329 "/// that doesn't\n" 1330 "/// fit on one\n" 1331 "/// line", 1332 format("/// A comment that doesn't fit on one line", 1333 getLLVMStyleWithColumns(20))); 1334 } 1335 1336 TEST_F(FormatTest, DontSplitLineCommentsWithEscapedNewlines) { 1337 EXPECT_EQ("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1338 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1339 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1340 format("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1341 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1342 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")); 1343 EXPECT_EQ("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1344 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1345 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1346 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1347 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1348 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1349 getLLVMStyleWithColumns(50))); 1350 // FIXME: One day we might want to implement adjustment of leading whitespace 1351 // of the consecutive lines in this kind of comment: 1352 EXPECT_EQ("double\n" 1353 " a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1354 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1355 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1356 format("double a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1357 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1358 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1359 getLLVMStyleWithColumns(49))); 1360 } 1361 1362 TEST_F(FormatTest, DontSplitLineCommentsWithPragmas) { 1363 FormatStyle Pragmas = getLLVMStyleWithColumns(30); 1364 Pragmas.CommentPragmas = "^ IWYU pragma:"; 1365 EXPECT_EQ( 1366 "// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", 1367 format("// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", Pragmas)); 1368 EXPECT_EQ( 1369 "/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", 1370 format("/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", Pragmas)); 1371 } 1372 1373 TEST_F(FormatTest, PriorityOfCommentBreaking) { 1374 EXPECT_EQ("if (xxx ==\n" 1375 " yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1376 " zzz)\n" 1377 " q();", 1378 format("if (xxx == yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1379 " zzz) q();", 1380 getLLVMStyleWithColumns(40))); 1381 EXPECT_EQ("if (xxxxxxxxxx ==\n" 1382 " yyy && // aaaaaa bbbbbbbb cccc\n" 1383 " zzz)\n" 1384 " q();", 1385 format("if (xxxxxxxxxx == yyy && // aaaaaa bbbbbbbb cccc\n" 1386 " zzz) q();", 1387 getLLVMStyleWithColumns(40))); 1388 EXPECT_EQ("if (xxxxxxxxxx &&\n" 1389 " yyy || // aaaaaa bbbbbbbb cccc\n" 1390 " zzz)\n" 1391 " q();", 1392 format("if (xxxxxxxxxx && yyy || // aaaaaa bbbbbbbb cccc\n" 1393 " zzz) q();", 1394 getLLVMStyleWithColumns(40))); 1395 EXPECT_EQ("fffffffff(\n" 1396 " &xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1397 " zzz);", 1398 format("fffffffff(&xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1399 " zzz);", 1400 getLLVMStyleWithColumns(40))); 1401 } 1402 1403 TEST_F(FormatTest, MultiLineCommentsInDefines) { 1404 EXPECT_EQ("#define A(x) /* \\\n" 1405 " a comment \\\n" 1406 " inside */ \\\n" 1407 " f();", 1408 format("#define A(x) /* \\\n" 1409 " a comment \\\n" 1410 " inside */ \\\n" 1411 " f();", 1412 getLLVMStyleWithColumns(17))); 1413 EXPECT_EQ("#define A( \\\n" 1414 " x) /* \\\n" 1415 " a comment \\\n" 1416 " inside */ \\\n" 1417 " f();", 1418 format("#define A( \\\n" 1419 " x) /* \\\n" 1420 " a comment \\\n" 1421 " inside */ \\\n" 1422 " f();", 1423 getLLVMStyleWithColumns(17))); 1424 } 1425 1426 TEST_F(FormatTest, ParsesCommentsAdjacentToPPDirectives) { 1427 EXPECT_EQ("namespace {}\n// Test\n#define A", 1428 format("namespace {}\n // Test\n#define A")); 1429 EXPECT_EQ("namespace {}\n/* Test */\n#define A", 1430 format("namespace {}\n /* Test */\n#define A")); 1431 EXPECT_EQ("namespace {}\n/* Test */ #define A", 1432 format("namespace {}\n /* Test */ #define A")); 1433 } 1434 1435 TEST_F(FormatTest, SplitsLongLinesInComments) { 1436 EXPECT_EQ("/* This is a long\n" 1437 " * comment that\n" 1438 " * doesn't\n" 1439 " * fit on one line.\n" 1440 " */", 1441 format("/* " 1442 "This is a long " 1443 "comment that " 1444 "doesn't " 1445 "fit on one line. */", 1446 getLLVMStyleWithColumns(20))); 1447 EXPECT_EQ( 1448 "/* a b c d\n" 1449 " * e f g\n" 1450 " * h i j k\n" 1451 " */", 1452 format("/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1453 EXPECT_EQ( 1454 "/* a b c d\n" 1455 " * e f g\n" 1456 " * h i j k\n" 1457 " */", 1458 format("\\\n/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1459 EXPECT_EQ("/*\n" 1460 "This is a long\n" 1461 "comment that doesn't\n" 1462 "fit on one line.\n" 1463 "*/", 1464 format("/*\n" 1465 "This is a long " 1466 "comment that doesn't " 1467 "fit on one line. \n" 1468 "*/", 1469 getLLVMStyleWithColumns(20))); 1470 EXPECT_EQ("/*\n" 1471 " * This is a long\n" 1472 " * comment that\n" 1473 " * doesn't fit on\n" 1474 " * one line.\n" 1475 " */", 1476 format("/* \n" 1477 " * This is a long " 1478 " comment that " 1479 " doesn't fit on " 1480 " one line. \n" 1481 " */", 1482 getLLVMStyleWithColumns(20))); 1483 EXPECT_EQ("/*\n" 1484 " * This_is_a_comment_with_words_that_dont_fit_on_one_line\n" 1485 " * so_it_should_be_broken\n" 1486 " * wherever_a_space_occurs\n" 1487 " */", 1488 format("/*\n" 1489 " * This_is_a_comment_with_words_that_dont_fit_on_one_line " 1490 " so_it_should_be_broken " 1491 " wherever_a_space_occurs \n" 1492 " */", 1493 getLLVMStyleWithColumns(20))); 1494 EXPECT_EQ("/*\n" 1495 " * This_comment_can_not_be_broken_into_lines\n" 1496 " */", 1497 format("/*\n" 1498 " * This_comment_can_not_be_broken_into_lines\n" 1499 " */", 1500 getLLVMStyleWithColumns(20))); 1501 EXPECT_EQ("{\n" 1502 " /*\n" 1503 " This is another\n" 1504 " long comment that\n" 1505 " doesn't fit on one\n" 1506 " line 1234567890\n" 1507 " */\n" 1508 "}", 1509 format("{\n" 1510 "/*\n" 1511 "This is another " 1512 " long comment that " 1513 " doesn't fit on one" 1514 " line 1234567890\n" 1515 "*/\n" 1516 "}", 1517 getLLVMStyleWithColumns(20))); 1518 EXPECT_EQ("{\n" 1519 " /*\n" 1520 " * This i s\n" 1521 " * another comment\n" 1522 " * t hat doesn' t\n" 1523 " * fit on one l i\n" 1524 " * n e\n" 1525 " */\n" 1526 "}", 1527 format("{\n" 1528 "/*\n" 1529 " * This i s" 1530 " another comment" 1531 " t hat doesn' t" 1532 " fit on one l i" 1533 " n e\n" 1534 " */\n" 1535 "}", 1536 getLLVMStyleWithColumns(20))); 1537 EXPECT_EQ("/*\n" 1538 " * This is a long\n" 1539 " * comment that\n" 1540 " * doesn't fit on\n" 1541 " * one line\n" 1542 " */", 1543 format(" /*\n" 1544 " * This is a long comment that doesn't fit on one line\n" 1545 " */", 1546 getLLVMStyleWithColumns(20))); 1547 EXPECT_EQ("{\n" 1548 " if (something) /* This is a\n" 1549 " long\n" 1550 " comment */\n" 1551 " ;\n" 1552 "}", 1553 format("{\n" 1554 " if (something) /* This is a long comment */\n" 1555 " ;\n" 1556 "}", 1557 getLLVMStyleWithColumns(30))); 1558 1559 EXPECT_EQ("/* A comment before\n" 1560 " * a macro\n" 1561 " * definition */\n" 1562 "#define a b", 1563 format("/* A comment before a macro definition */\n" 1564 "#define a b", 1565 getLLVMStyleWithColumns(20))); 1566 1567 EXPECT_EQ("/* some comment\n" 1568 " * a comment\n" 1569 "* that we break\n" 1570 " * another comment\n" 1571 "* we have to break\n" 1572 "* a left comment\n" 1573 " */", 1574 format(" /* some comment\n" 1575 " * a comment that we break\n" 1576 " * another comment we have to break\n" 1577 "* a left comment\n" 1578 " */", 1579 getLLVMStyleWithColumns(20))); 1580 1581 EXPECT_EQ("/**\n" 1582 " * multiline block\n" 1583 " * comment\n" 1584 " *\n" 1585 " */", 1586 format("/**\n" 1587 " * multiline block comment\n" 1588 " *\n" 1589 " */", 1590 getLLVMStyleWithColumns(20))); 1591 1592 EXPECT_EQ("/*\n" 1593 "\n" 1594 "\n" 1595 " */\n", 1596 format(" /* \n" 1597 " \n" 1598 " \n" 1599 " */\n")); 1600 1601 EXPECT_EQ("/* a a */", 1602 format("/* a a */", getLLVMStyleWithColumns(15))); 1603 EXPECT_EQ("/* a a bc */", 1604 format("/* a a bc */", getLLVMStyleWithColumns(15))); 1605 EXPECT_EQ("/* aaa aaa\n" 1606 " * aaaaa */", 1607 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1608 EXPECT_EQ("/* aaa aaa\n" 1609 " * aaaaa */", 1610 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1611 } 1612 1613 TEST_F(FormatTest, SplitsLongLinesInCommentsInPreprocessor) { 1614 EXPECT_EQ("#define X \\\n" 1615 " /* \\\n" 1616 " Test \\\n" 1617 " Macro comment \\\n" 1618 " with a long \\\n" 1619 " line \\\n" 1620 " */ \\\n" 1621 " A + B", 1622 format("#define X \\\n" 1623 " /*\n" 1624 " Test\n" 1625 " Macro comment with a long line\n" 1626 " */ \\\n" 1627 " A + B", 1628 getLLVMStyleWithColumns(20))); 1629 EXPECT_EQ("#define X \\\n" 1630 " /* Macro comment \\\n" 1631 " with a long \\\n" 1632 " line */ \\\n" 1633 " A + B", 1634 format("#define X \\\n" 1635 " /* Macro comment with a long\n" 1636 " line */ \\\n" 1637 " A + B", 1638 getLLVMStyleWithColumns(20))); 1639 EXPECT_EQ("#define X \\\n" 1640 " /* Macro comment \\\n" 1641 " * with a long \\\n" 1642 " * line */ \\\n" 1643 " A + B", 1644 format("#define X \\\n" 1645 " /* Macro comment with a long line */ \\\n" 1646 " A + B", 1647 getLLVMStyleWithColumns(20))); 1648 } 1649 1650 TEST_F(FormatTest, CommentsInStaticInitializers) { 1651 EXPECT_EQ( 1652 "static SomeType type = {aaaaaaaaaaaaaaaaaaaa, /* comment */\n" 1653 " aaaaaaaaaaaaaaaaaaaa /* comment */,\n" 1654 " /* comment */ aaaaaaaaaaaaaaaaaaaa,\n" 1655 " aaaaaaaaaaaaaaaaaaaa, // comment\n" 1656 " aaaaaaaaaaaaaaaaaaaa};", 1657 format("static SomeType type = { aaaaaaaaaaaaaaaaaaaa , /* comment */\n" 1658 " aaaaaaaaaaaaaaaaaaaa /* comment */ ,\n" 1659 " /* comment */ aaaaaaaaaaaaaaaaaaaa ,\n" 1660 " aaaaaaaaaaaaaaaaaaaa , // comment\n" 1661 " aaaaaaaaaaaaaaaaaaaa };")); 1662 verifyFormat("static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1663 " bbbbbbbbbbb, ccccccccccc};"); 1664 verifyFormat("static SomeType type = {aaaaaaaaaaa,\n" 1665 " // comment for bb....\n" 1666 " bbbbbbbbbbb, ccccccccccc};"); 1667 verifyGoogleFormat( 1668 "static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1669 " bbbbbbbbbbb, ccccccccccc};"); 1670 verifyGoogleFormat("static SomeType type = {aaaaaaaaaaa,\n" 1671 " // comment for bb....\n" 1672 " bbbbbbbbbbb, ccccccccccc};"); 1673 1674 verifyFormat("S s = {{a, b, c}, // Group #1\n" 1675 " {d, e, f}, // Group #2\n" 1676 " {g, h, i}}; // Group #3"); 1677 verifyFormat("S s = {{// Group #1\n" 1678 " a, b, c},\n" 1679 " {// Group #2\n" 1680 " d, e, f},\n" 1681 " {// Group #3\n" 1682 " g, h, i}};"); 1683 1684 EXPECT_EQ("S s = {\n" 1685 " // Some comment\n" 1686 " a,\n" 1687 "\n" 1688 " // Comment after empty line\n" 1689 " b}", 1690 format("S s = {\n" 1691 " // Some comment\n" 1692 " a,\n" 1693 " \n" 1694 " // Comment after empty line\n" 1695 " b\n" 1696 "}")); 1697 EXPECT_EQ("S s = {\n" 1698 " /* Some comment */\n" 1699 " a,\n" 1700 "\n" 1701 " /* Comment after empty line */\n" 1702 " b}", 1703 format("S s = {\n" 1704 " /* Some comment */\n" 1705 " a,\n" 1706 " \n" 1707 " /* Comment after empty line */\n" 1708 " b\n" 1709 "}")); 1710 verifyFormat("const uint8_t aaaaaaaaaaaaaaaaaaaaaa[0] = {\n" 1711 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1712 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1713 " 0x00, 0x00, 0x00, 0x00}; // comment\n"); 1714 } 1715 1716 TEST_F(FormatTest, IgnoresIf0Contents) { 1717 EXPECT_EQ("#if 0\n" 1718 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1719 "#endif\n" 1720 "void f() {}", 1721 format("#if 0\n" 1722 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1723 "#endif\n" 1724 "void f( ) { }")); 1725 EXPECT_EQ("#if false\n" 1726 "void f( ) { }\n" 1727 "#endif\n" 1728 "void g() {}\n", 1729 format("#if false\n" 1730 "void f( ) { }\n" 1731 "#endif\n" 1732 "void g( ) { }\n")); 1733 EXPECT_EQ("enum E {\n" 1734 " One,\n" 1735 " Two,\n" 1736 "#if 0\n" 1737 "Three,\n" 1738 " Four,\n" 1739 "#endif\n" 1740 " Five\n" 1741 "};", 1742 format("enum E {\n" 1743 " One,Two,\n" 1744 "#if 0\n" 1745 "Three,\n" 1746 " Four,\n" 1747 "#endif\n" 1748 " Five};")); 1749 EXPECT_EQ("enum F {\n" 1750 " One,\n" 1751 "#if 1\n" 1752 " Two,\n" 1753 "#if 0\n" 1754 "Three,\n" 1755 " Four,\n" 1756 "#endif\n" 1757 " Five\n" 1758 "#endif\n" 1759 "};", 1760 format("enum F {\n" 1761 "One,\n" 1762 "#if 1\n" 1763 "Two,\n" 1764 "#if 0\n" 1765 "Three,\n" 1766 " Four,\n" 1767 "#endif\n" 1768 "Five\n" 1769 "#endif\n" 1770 "};")); 1771 EXPECT_EQ("enum G {\n" 1772 " One,\n" 1773 "#if 0\n" 1774 "Two,\n" 1775 "#else\n" 1776 " Three,\n" 1777 "#endif\n" 1778 " Four\n" 1779 "};", 1780 format("enum G {\n" 1781 "One,\n" 1782 "#if 0\n" 1783 "Two,\n" 1784 "#else\n" 1785 "Three,\n" 1786 "#endif\n" 1787 "Four\n" 1788 "};")); 1789 EXPECT_EQ("enum H {\n" 1790 " One,\n" 1791 "#if 0\n" 1792 "#ifdef Q\n" 1793 "Two,\n" 1794 "#else\n" 1795 "Three,\n" 1796 "#endif\n" 1797 "#endif\n" 1798 " Four\n" 1799 "};", 1800 format("enum H {\n" 1801 "One,\n" 1802 "#if 0\n" 1803 "#ifdef Q\n" 1804 "Two,\n" 1805 "#else\n" 1806 "Three,\n" 1807 "#endif\n" 1808 "#endif\n" 1809 "Four\n" 1810 "};")); 1811 EXPECT_EQ("enum I {\n" 1812 " One,\n" 1813 "#if /* test */ 0 || 1\n" 1814 "Two,\n" 1815 "Three,\n" 1816 "#endif\n" 1817 " Four\n" 1818 "};", 1819 format("enum I {\n" 1820 "One,\n" 1821 "#if /* test */ 0 || 1\n" 1822 "Two,\n" 1823 "Three,\n" 1824 "#endif\n" 1825 "Four\n" 1826 "};")); 1827 EXPECT_EQ("enum J {\n" 1828 " One,\n" 1829 "#if 0\n" 1830 "#if 0\n" 1831 "Two,\n" 1832 "#else\n" 1833 "Three,\n" 1834 "#endif\n" 1835 "Four,\n" 1836 "#endif\n" 1837 " Five\n" 1838 "};", 1839 format("enum J {\n" 1840 "One,\n" 1841 "#if 0\n" 1842 "#if 0\n" 1843 "Two,\n" 1844 "#else\n" 1845 "Three,\n" 1846 "#endif\n" 1847 "Four,\n" 1848 "#endif\n" 1849 "Five\n" 1850 "};")); 1851 } 1852 1853 //===----------------------------------------------------------------------===// 1854 // Tests for classes, namespaces, etc. 1855 //===----------------------------------------------------------------------===// 1856 1857 TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) { 1858 verifyFormat("class A {};"); 1859 } 1860 1861 TEST_F(FormatTest, UnderstandsAccessSpecifiers) { 1862 verifyFormat("class A {\n" 1863 "public:\n" 1864 "public: // comment\n" 1865 "protected:\n" 1866 "private:\n" 1867 " void f() {}\n" 1868 "};"); 1869 verifyGoogleFormat("class A {\n" 1870 " public:\n" 1871 " protected:\n" 1872 " private:\n" 1873 " void f() {}\n" 1874 "};"); 1875 verifyFormat("class A {\n" 1876 "public slots:\n" 1877 " void f1() {}\n" 1878 "public Q_SLOTS:\n" 1879 " void f2() {}\n" 1880 "protected slots:\n" 1881 " void f3() {}\n" 1882 "protected Q_SLOTS:\n" 1883 " void f4() {}\n" 1884 "private slots:\n" 1885 " void f5() {}\n" 1886 "private Q_SLOTS:\n" 1887 " void f6() {}\n" 1888 "signals:\n" 1889 " void g1();\n" 1890 "Q_SIGNALS:\n" 1891 " void g2();\n" 1892 "};"); 1893 1894 // Don't interpret 'signals' the wrong way. 1895 verifyFormat("signals.set();"); 1896 verifyFormat("for (Signals signals : f()) {\n}"); 1897 verifyFormat("{\n" 1898 " signals.set(); // This needs indentation.\n" 1899 "}"); 1900 } 1901 1902 TEST_F(FormatTest, SeparatesLogicalBlocks) { 1903 EXPECT_EQ("class A {\n" 1904 "public:\n" 1905 " void f();\n" 1906 "\n" 1907 "private:\n" 1908 " void g() {}\n" 1909 " // test\n" 1910 "protected:\n" 1911 " int h;\n" 1912 "};", 1913 format("class A {\n" 1914 "public:\n" 1915 "void f();\n" 1916 "private:\n" 1917 "void g() {}\n" 1918 "// test\n" 1919 "protected:\n" 1920 "int h;\n" 1921 "};")); 1922 EXPECT_EQ("class A {\n" 1923 "protected:\n" 1924 "public:\n" 1925 " void f();\n" 1926 "};", 1927 format("class A {\n" 1928 "protected:\n" 1929 "\n" 1930 "public:\n" 1931 "\n" 1932 " void f();\n" 1933 "};")); 1934 1935 // Even ensure proper spacing inside macros. 1936 EXPECT_EQ("#define B \\\n" 1937 " class A { \\\n" 1938 " protected: \\\n" 1939 " public: \\\n" 1940 " void f(); \\\n" 1941 " };", 1942 format("#define B \\\n" 1943 " class A { \\\n" 1944 " protected: \\\n" 1945 " \\\n" 1946 " public: \\\n" 1947 " \\\n" 1948 " void f(); \\\n" 1949 " };", 1950 getGoogleStyle())); 1951 // But don't remove empty lines after macros ending in access specifiers. 1952 EXPECT_EQ("#define A private:\n" 1953 "\n" 1954 "int i;", 1955 format("#define A private:\n" 1956 "\n" 1957 "int i;")); 1958 } 1959 1960 TEST_F(FormatTest, FormatsClasses) { 1961 verifyFormat("class A : public B {};"); 1962 verifyFormat("class A : public ::B {};"); 1963 1964 verifyFormat( 1965 "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1966 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1967 verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n" 1968 " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1969 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1970 verifyFormat( 1971 "class A : public B, public C, public D, public E, public F {};"); 1972 verifyFormat("class AAAAAAAAAAAA : public B,\n" 1973 " public C,\n" 1974 " public D,\n" 1975 " public E,\n" 1976 " public F,\n" 1977 " public G {};"); 1978 1979 verifyFormat("class\n" 1980 " ReallyReallyLongClassName {\n" 1981 " int i;\n" 1982 "};", 1983 getLLVMStyleWithColumns(32)); 1984 verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n" 1985 " aaaaaaaaaaaaaaaa> {};"); 1986 verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n" 1987 " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n" 1988 " aaaaaaaaaaaaaaaaaaaaaa> {};"); 1989 verifyFormat("template <class R, class C>\n" 1990 "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n" 1991 " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};"); 1992 verifyFormat("class ::A::B {};"); 1993 } 1994 1995 TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) { 1996 verifyFormat("class A {\n} a, b;"); 1997 verifyFormat("struct A {\n} a, b;"); 1998 verifyFormat("union A {\n} a;"); 1999 } 2000 2001 TEST_F(FormatTest, FormatsEnum) { 2002 verifyFormat("enum {\n" 2003 " Zero,\n" 2004 " One = 1,\n" 2005 " Two = One + 1,\n" 2006 " Three = (One + Two),\n" 2007 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2008 " Five = (One, Two, Three, Four, 5)\n" 2009 "};"); 2010 verifyGoogleFormat("enum {\n" 2011 " Zero,\n" 2012 " One = 1,\n" 2013 " Two = One + 1,\n" 2014 " Three = (One + Two),\n" 2015 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2016 " Five = (One, Two, Three, Four, 5)\n" 2017 "};"); 2018 verifyFormat("enum Enum {};"); 2019 verifyFormat("enum {};"); 2020 verifyFormat("enum X E {} d;"); 2021 verifyFormat("enum __attribute__((...)) E {} d;"); 2022 verifyFormat("enum __declspec__((...)) E {} d;"); 2023 verifyFormat("enum {\n" 2024 " Bar = Foo<int, int>::value\n" 2025 "};", 2026 getLLVMStyleWithColumns(30)); 2027 2028 verifyFormat("enum ShortEnum { A, B, C };"); 2029 verifyGoogleFormat("enum ShortEnum { A, B, C };"); 2030 2031 EXPECT_EQ("enum KeepEmptyLines {\n" 2032 " ONE,\n" 2033 "\n" 2034 " TWO,\n" 2035 "\n" 2036 " THREE\n" 2037 "}", 2038 format("enum KeepEmptyLines {\n" 2039 " ONE,\n" 2040 "\n" 2041 " TWO,\n" 2042 "\n" 2043 "\n" 2044 " THREE\n" 2045 "}")); 2046 verifyFormat("enum E { // comment\n" 2047 " ONE,\n" 2048 " TWO\n" 2049 "};\n" 2050 "int i;"); 2051 // Not enums. 2052 verifyFormat("enum X f() {\n" 2053 " a();\n" 2054 " return 42;\n" 2055 "}"); 2056 verifyFormat("enum X Type::f() {\n" 2057 " a();\n" 2058 " return 42;\n" 2059 "}"); 2060 verifyFormat("enum ::X f() {\n" 2061 " a();\n" 2062 " return 42;\n" 2063 "}"); 2064 verifyFormat("enum ns::X f() {\n" 2065 " a();\n" 2066 " return 42;\n" 2067 "}"); 2068 } 2069 2070 TEST_F(FormatTest, FormatsEnumsWithErrors) { 2071 verifyFormat("enum Type {\n" 2072 " One = 0; // These semicolons should be commas.\n" 2073 " Two = 1;\n" 2074 "};"); 2075 verifyFormat("namespace n {\n" 2076 "enum Type {\n" 2077 " One,\n" 2078 " Two, // missing };\n" 2079 " int i;\n" 2080 "}\n" 2081 "void g() {}"); 2082 } 2083 2084 TEST_F(FormatTest, FormatsEnumStruct) { 2085 verifyFormat("enum struct {\n" 2086 " Zero,\n" 2087 " One = 1,\n" 2088 " Two = One + 1,\n" 2089 " Three = (One + Two),\n" 2090 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2091 " Five = (One, Two, Three, Four, 5)\n" 2092 "};"); 2093 verifyFormat("enum struct Enum {};"); 2094 verifyFormat("enum struct {};"); 2095 verifyFormat("enum struct X E {} d;"); 2096 verifyFormat("enum struct __attribute__((...)) E {} d;"); 2097 verifyFormat("enum struct __declspec__((...)) E {} d;"); 2098 verifyFormat("enum struct X f() {\n a();\n return 42;\n}"); 2099 } 2100 2101 TEST_F(FormatTest, FormatsEnumClass) { 2102 verifyFormat("enum class {\n" 2103 " Zero,\n" 2104 " One = 1,\n" 2105 " Two = One + 1,\n" 2106 " Three = (One + Two),\n" 2107 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2108 " Five = (One, Two, Three, Four, 5)\n" 2109 "};"); 2110 verifyFormat("enum class Enum {};"); 2111 verifyFormat("enum class {};"); 2112 verifyFormat("enum class X E {} d;"); 2113 verifyFormat("enum class __attribute__((...)) E {} d;"); 2114 verifyFormat("enum class __declspec__((...)) E {} d;"); 2115 verifyFormat("enum class X f() {\n a();\n return 42;\n}"); 2116 } 2117 2118 TEST_F(FormatTest, FormatsEnumTypes) { 2119 verifyFormat("enum X : int {\n" 2120 " A, // Force multiple lines.\n" 2121 " B\n" 2122 "};"); 2123 verifyFormat("enum X : int { A, B };"); 2124 verifyFormat("enum X : std::uint32_t { A, B };"); 2125 } 2126 2127 TEST_F(FormatTest, FormatsNSEnums) { 2128 verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }"); 2129 verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n" 2130 " // Information about someDecentlyLongValue.\n" 2131 " someDecentlyLongValue,\n" 2132 " // Information about anotherDecentlyLongValue.\n" 2133 " anotherDecentlyLongValue,\n" 2134 " // Information about aThirdDecentlyLongValue.\n" 2135 " aThirdDecentlyLongValue\n" 2136 "};"); 2137 verifyGoogleFormat("typedef NS_OPTIONS(NSInteger, MyType) {\n" 2138 " a = 1,\n" 2139 " b = 2,\n" 2140 " c = 3,\n" 2141 "};"); 2142 verifyGoogleFormat("typedef CF_ENUM(NSInteger, MyType) {\n" 2143 " a = 1,\n" 2144 " b = 2,\n" 2145 " c = 3,\n" 2146 "};"); 2147 verifyGoogleFormat("typedef CF_OPTIONS(NSInteger, MyType) {\n" 2148 " a = 1,\n" 2149 " b = 2,\n" 2150 " c = 3,\n" 2151 "};"); 2152 } 2153 2154 TEST_F(FormatTest, FormatsBitfields) { 2155 verifyFormat("struct Bitfields {\n" 2156 " unsigned sClass : 8;\n" 2157 " unsigned ValueKind : 2;\n" 2158 "};"); 2159 verifyFormat("struct A {\n" 2160 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n" 2161 " bbbbbbbbbbbbbbbbbbbbbbbbb;\n" 2162 "};"); 2163 verifyFormat("struct MyStruct {\n" 2164 " uchar data;\n" 2165 " uchar : 8;\n" 2166 " uchar : 8;\n" 2167 " uchar other;\n" 2168 "};"); 2169 } 2170 2171 TEST_F(FormatTest, FormatsNamespaces) { 2172 verifyFormat("namespace some_namespace {\n" 2173 "class A {};\n" 2174 "void f() { f(); }\n" 2175 "}"); 2176 verifyFormat("namespace {\n" 2177 "class A {};\n" 2178 "void f() { f(); }\n" 2179 "}"); 2180 verifyFormat("inline namespace X {\n" 2181 "class A {};\n" 2182 "void f() { f(); }\n" 2183 "}"); 2184 verifyFormat("using namespace some_namespace;\n" 2185 "class A {};\n" 2186 "void f() { f(); }"); 2187 2188 // This code is more common than we thought; if we 2189 // layout this correctly the semicolon will go into 2190 // its own line, which is undesirable. 2191 verifyFormat("namespace {};"); 2192 verifyFormat("namespace {\n" 2193 "class A {};\n" 2194 "};"); 2195 2196 verifyFormat("namespace {\n" 2197 "int SomeVariable = 0; // comment\n" 2198 "} // namespace"); 2199 EXPECT_EQ("#ifndef HEADER_GUARD\n" 2200 "#define HEADER_GUARD\n" 2201 "namespace my_namespace {\n" 2202 "int i;\n" 2203 "} // my_namespace\n" 2204 "#endif // HEADER_GUARD", 2205 format("#ifndef HEADER_GUARD\n" 2206 " #define HEADER_GUARD\n" 2207 " namespace my_namespace {\n" 2208 "int i;\n" 2209 "} // my_namespace\n" 2210 "#endif // HEADER_GUARD")); 2211 2212 EXPECT_EQ("namespace A::B {\n" 2213 "class C {};\n" 2214 "}", 2215 format("namespace A::B {\n" 2216 "class C {};\n" 2217 "}")); 2218 2219 FormatStyle Style = getLLVMStyle(); 2220 Style.NamespaceIndentation = FormatStyle::NI_All; 2221 EXPECT_EQ("namespace out {\n" 2222 " int i;\n" 2223 " namespace in {\n" 2224 " int i;\n" 2225 " } // namespace\n" 2226 "} // namespace", 2227 format("namespace out {\n" 2228 "int i;\n" 2229 "namespace in {\n" 2230 "int i;\n" 2231 "} // namespace\n" 2232 "} // namespace", 2233 Style)); 2234 2235 Style.NamespaceIndentation = FormatStyle::NI_Inner; 2236 EXPECT_EQ("namespace out {\n" 2237 "int i;\n" 2238 "namespace in {\n" 2239 " int i;\n" 2240 "} // namespace\n" 2241 "} // namespace", 2242 format("namespace out {\n" 2243 "int i;\n" 2244 "namespace in {\n" 2245 "int i;\n" 2246 "} // namespace\n" 2247 "} // namespace", 2248 Style)); 2249 } 2250 2251 TEST_F(FormatTest, FormatsExternC) { verifyFormat("extern \"C\" {\nint a;"); } 2252 2253 TEST_F(FormatTest, FormatsInlineASM) { 2254 verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));"); 2255 verifyFormat("asm(\"nop\" ::: \"memory\");"); 2256 verifyFormat( 2257 "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n" 2258 " \"cpuid\\n\\t\"\n" 2259 " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n" 2260 " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n" 2261 " : \"a\"(value));"); 2262 EXPECT_EQ( 2263 "void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2264 " __asm {\n" 2265 " mov edx,[that] // vtable in edx\n" 2266 " mov eax,methodIndex\n" 2267 " call [edx][eax*4] // stdcall\n" 2268 " }\n" 2269 "}", 2270 format("void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2271 " __asm {\n" 2272 " mov edx,[that] // vtable in edx\n" 2273 " mov eax,methodIndex\n" 2274 " call [edx][eax*4] // stdcall\n" 2275 " }\n" 2276 "}")); 2277 EXPECT_EQ("_asm {\n" 2278 " xor eax, eax;\n" 2279 " cpuid;\n" 2280 "}", 2281 format("_asm {\n" 2282 " xor eax, eax;\n" 2283 " cpuid;\n" 2284 "}")); 2285 verifyFormat("void function() {\n" 2286 " // comment\n" 2287 " asm(\"\");\n" 2288 "}"); 2289 EXPECT_EQ("__asm {\n" 2290 "}\n" 2291 "int i;", 2292 format("__asm {\n" 2293 "}\n" 2294 "int i;")); 2295 } 2296 2297 TEST_F(FormatTest, FormatTryCatch) { 2298 verifyFormat("try {\n" 2299 " throw a * b;\n" 2300 "} catch (int a) {\n" 2301 " // Do nothing.\n" 2302 "} catch (...) {\n" 2303 " exit(42);\n" 2304 "}"); 2305 2306 // Function-level try statements. 2307 verifyFormat("int f() try { return 4; } catch (...) {\n" 2308 " return 5;\n" 2309 "}"); 2310 verifyFormat("class A {\n" 2311 " int a;\n" 2312 " A() try : a(0) {\n" 2313 " } catch (...) {\n" 2314 " throw;\n" 2315 " }\n" 2316 "};\n"); 2317 2318 // Incomplete try-catch blocks. 2319 verifyIncompleteFormat("try {} catch ("); 2320 } 2321 2322 TEST_F(FormatTest, FormatSEHTryCatch) { 2323 verifyFormat("__try {\n" 2324 " int a = b * c;\n" 2325 "} __except (EXCEPTION_EXECUTE_HANDLER) {\n" 2326 " // Do nothing.\n" 2327 "}"); 2328 2329 verifyFormat("__try {\n" 2330 " int a = b * c;\n" 2331 "} __finally {\n" 2332 " // Do nothing.\n" 2333 "}"); 2334 2335 verifyFormat("DEBUG({\n" 2336 " __try {\n" 2337 " } __finally {\n" 2338 " }\n" 2339 "});\n"); 2340 } 2341 2342 TEST_F(FormatTest, IncompleteTryCatchBlocks) { 2343 verifyFormat("try {\n" 2344 " f();\n" 2345 "} catch {\n" 2346 " g();\n" 2347 "}"); 2348 verifyFormat("try {\n" 2349 " f();\n" 2350 "} catch (A a) MACRO(x) {\n" 2351 " g();\n" 2352 "} catch (B b) MACRO(x) {\n" 2353 " g();\n" 2354 "}"); 2355 } 2356 2357 TEST_F(FormatTest, FormatTryCatchBraceStyles) { 2358 FormatStyle Style = getLLVMStyle(); 2359 for (auto BraceStyle : {FormatStyle::BS_Attach, FormatStyle::BS_Mozilla, 2360 FormatStyle::BS_WebKit}) { 2361 Style.BreakBeforeBraces = BraceStyle; 2362 verifyFormat("try {\n" 2363 " // something\n" 2364 "} catch (...) {\n" 2365 " // something\n" 2366 "}", 2367 Style); 2368 } 2369 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 2370 verifyFormat("try {\n" 2371 " // something\n" 2372 "}\n" 2373 "catch (...) {\n" 2374 " // something\n" 2375 "}", 2376 Style); 2377 verifyFormat("__try {\n" 2378 " // something\n" 2379 "}\n" 2380 "__finally {\n" 2381 " // something\n" 2382 "}", 2383 Style); 2384 verifyFormat("@try {\n" 2385 " // something\n" 2386 "}\n" 2387 "@finally {\n" 2388 " // something\n" 2389 "}", 2390 Style); 2391 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2392 verifyFormat("try\n" 2393 "{\n" 2394 " // something\n" 2395 "}\n" 2396 "catch (...)\n" 2397 "{\n" 2398 " // something\n" 2399 "}", 2400 Style); 2401 Style.BreakBeforeBraces = FormatStyle::BS_GNU; 2402 verifyFormat("try\n" 2403 " {\n" 2404 " // something\n" 2405 " }\n" 2406 "catch (...)\n" 2407 " {\n" 2408 " // something\n" 2409 " }", 2410 Style); 2411 Style.BreakBeforeBraces = FormatStyle::BS_Custom; 2412 Style.BraceWrapping.BeforeCatch = true; 2413 verifyFormat("try {\n" 2414 " // something\n" 2415 "}\n" 2416 "catch (...) {\n" 2417 " // something\n" 2418 "}", 2419 Style); 2420 } 2421 2422 TEST_F(FormatTest, FormatObjCTryCatch) { 2423 verifyFormat("@try {\n" 2424 " f();\n" 2425 "} @catch (NSException e) {\n" 2426 " @throw;\n" 2427 "} @finally {\n" 2428 " exit(42);\n" 2429 "}"); 2430 verifyFormat("DEBUG({\n" 2431 " @try {\n" 2432 " } @finally {\n" 2433 " }\n" 2434 "});\n"); 2435 } 2436 2437 TEST_F(FormatTest, FormatObjCAutoreleasepool) { 2438 FormatStyle Style = getLLVMStyle(); 2439 verifyFormat("@autoreleasepool {\n" 2440 " f();\n" 2441 "}\n" 2442 "@autoreleasepool {\n" 2443 " f();\n" 2444 "}\n", 2445 Style); 2446 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2447 verifyFormat("@autoreleasepool\n" 2448 "{\n" 2449 " f();\n" 2450 "}\n" 2451 "@autoreleasepool\n" 2452 "{\n" 2453 " f();\n" 2454 "}\n", 2455 Style); 2456 } 2457 2458 TEST_F(FormatTest, StaticInitializers) { 2459 verifyFormat("static SomeClass SC = {1, 'a'};"); 2460 2461 verifyFormat("static SomeClass WithALoooooooooooooooooooongName = {\n" 2462 " 100000000, " 2463 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};"); 2464 2465 // Here, everything other than the "}" would fit on a line. 2466 verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n" 2467 " 10000000000000000000000000};"); 2468 EXPECT_EQ("S s = {a,\n" 2469 "\n" 2470 " b};", 2471 format("S s = {\n" 2472 " a,\n" 2473 "\n" 2474 " b\n" 2475 "};")); 2476 2477 // FIXME: This would fit into the column limit if we'd fit "{ {" on the first 2478 // line. However, the formatting looks a bit off and this probably doesn't 2479 // happen often in practice. 2480 verifyFormat("static int Variable[1] = {\n" 2481 " {1000000000000000000000000000000000000}};", 2482 getLLVMStyleWithColumns(40)); 2483 } 2484 2485 TEST_F(FormatTest, DesignatedInitializers) { 2486 verifyFormat("const struct A a = {.a = 1, .b = 2};"); 2487 verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n" 2488 " .bbbbbbbbbb = 2,\n" 2489 " .cccccccccc = 3,\n" 2490 " .dddddddddd = 4,\n" 2491 " .eeeeeeeeee = 5};"); 2492 verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n" 2493 " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n" 2494 " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n" 2495 " .ccccccccccccccccccccccccccc = 3,\n" 2496 " .ddddddddddddddddddddddddddd = 4,\n" 2497 " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};"); 2498 2499 verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};"); 2500 } 2501 2502 TEST_F(FormatTest, NestedStaticInitializers) { 2503 verifyFormat("static A x = {{{}}};\n"); 2504 verifyFormat("static A x = {{{init1, init2, init3, init4},\n" 2505 " {init1, init2, init3, init4}}};", 2506 getLLVMStyleWithColumns(50)); 2507 2508 verifyFormat("somes Status::global_reps[3] = {\n" 2509 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2510 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2511 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};", 2512 getLLVMStyleWithColumns(60)); 2513 verifyGoogleFormat("SomeType Status::global_reps[3] = {\n" 2514 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2515 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2516 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};"); 2517 verifyFormat("CGRect cg_rect = {{rect.fLeft, rect.fTop},\n" 2518 " {rect.fRight - rect.fLeft, rect.fBottom - " 2519 "rect.fTop}};"); 2520 2521 verifyFormat( 2522 "SomeArrayOfSomeType a = {\n" 2523 " {{1, 2, 3},\n" 2524 " {1, 2, 3},\n" 2525 " {111111111111111111111111111111, 222222222222222222222222222222,\n" 2526 " 333333333333333333333333333333},\n" 2527 " {1, 2, 3},\n" 2528 " {1, 2, 3}}};"); 2529 verifyFormat( 2530 "SomeArrayOfSomeType a = {\n" 2531 " {{1, 2, 3}},\n" 2532 " {{1, 2, 3}},\n" 2533 " {{111111111111111111111111111111, 222222222222222222222222222222,\n" 2534 " 333333333333333333333333333333}},\n" 2535 " {{1, 2, 3}},\n" 2536 " {{1, 2, 3}}};"); 2537 2538 verifyFormat("struct {\n" 2539 " unsigned bit;\n" 2540 " const char *const name;\n" 2541 "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n" 2542 " {kOsWin, \"Windows\"},\n" 2543 " {kOsLinux, \"Linux\"},\n" 2544 " {kOsCrOS, \"Chrome OS\"}};"); 2545 verifyFormat("struct {\n" 2546 " unsigned bit;\n" 2547 " const char *const name;\n" 2548 "} kBitsToOs[] = {\n" 2549 " {kOsMac, \"Mac\"},\n" 2550 " {kOsWin, \"Windows\"},\n" 2551 " {kOsLinux, \"Linux\"},\n" 2552 " {kOsCrOS, \"Chrome OS\"},\n" 2553 "};"); 2554 } 2555 2556 TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) { 2557 verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2558 " \\\n" 2559 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)"); 2560 } 2561 2562 TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) { 2563 verifyFormat("virtual void write(ELFWriter *writerrr,\n" 2564 " OwningPtr<FileOutputBuffer> &buffer) = 0;"); 2565 2566 // Do break defaulted and deleted functions. 2567 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2568 " default;", 2569 getLLVMStyleWithColumns(40)); 2570 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2571 " delete;", 2572 getLLVMStyleWithColumns(40)); 2573 } 2574 2575 TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) { 2576 verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3", 2577 getLLVMStyleWithColumns(40)); 2578 verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2579 getLLVMStyleWithColumns(40)); 2580 EXPECT_EQ("#define Q \\\n" 2581 " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n" 2582 " \"aaaaaaaa.cpp\"", 2583 format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2584 getLLVMStyleWithColumns(40))); 2585 } 2586 2587 TEST_F(FormatTest, UnderstandsLinePPDirective) { 2588 EXPECT_EQ("# 123 \"A string literal\"", 2589 format(" # 123 \"A string literal\"")); 2590 } 2591 2592 TEST_F(FormatTest, LayoutUnknownPPDirective) { 2593 EXPECT_EQ("#;", format("#;")); 2594 verifyFormat("#\n;\n;\n;"); 2595 } 2596 2597 TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) { 2598 EXPECT_EQ("#line 42 \"test\"\n", 2599 format("# \\\n line \\\n 42 \\\n \"test\"\n")); 2600 EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n", 2601 getLLVMStyleWithColumns(12))); 2602 } 2603 2604 TEST_F(FormatTest, EndOfFileEndsPPDirective) { 2605 EXPECT_EQ("#line 42 \"test\"", 2606 format("# \\\n line \\\n 42 \\\n \"test\"")); 2607 EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B")); 2608 } 2609 2610 TEST_F(FormatTest, DoesntRemoveUnknownTokens) { 2611 verifyFormat("#define A \\x20"); 2612 verifyFormat("#define A \\ x20"); 2613 EXPECT_EQ("#define A \\ x20", format("#define A \\ x20")); 2614 verifyFormat("#define A ''"); 2615 verifyFormat("#define A ''qqq"); 2616 verifyFormat("#define A `qqq"); 2617 verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");"); 2618 EXPECT_EQ("const char *c = STRINGIFY(\n" 2619 "\\na : b);", 2620 format("const char * c = STRINGIFY(\n" 2621 "\\na : b);")); 2622 2623 verifyFormat("a\r\\"); 2624 verifyFormat("a\v\\"); 2625 verifyFormat("a\f\\"); 2626 } 2627 2628 TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) { 2629 verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13)); 2630 verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12)); 2631 verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12)); 2632 // FIXME: We never break before the macro name. 2633 verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12)); 2634 2635 verifyFormat("#define A A\n#define A A"); 2636 verifyFormat("#define A(X) A\n#define A A"); 2637 2638 verifyFormat("#define Something Other", getLLVMStyleWithColumns(23)); 2639 verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22)); 2640 } 2641 2642 TEST_F(FormatTest, HandlePreprocessorDirectiveContext) { 2643 EXPECT_EQ("// somecomment\n" 2644 "#include \"a.h\"\n" 2645 "#define A( \\\n" 2646 " A, B)\n" 2647 "#include \"b.h\"\n" 2648 "// somecomment\n", 2649 format(" // somecomment\n" 2650 " #include \"a.h\"\n" 2651 "#define A(A,\\\n" 2652 " B)\n" 2653 " #include \"b.h\"\n" 2654 " // somecomment\n", 2655 getLLVMStyleWithColumns(13))); 2656 } 2657 2658 TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); } 2659 2660 TEST_F(FormatTest, LayoutCodeInMacroDefinitions) { 2661 EXPECT_EQ("#define A \\\n" 2662 " c; \\\n" 2663 " e;\n" 2664 "f;", 2665 format("#define A c; e;\n" 2666 "f;", 2667 getLLVMStyleWithColumns(14))); 2668 } 2669 2670 TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); } 2671 2672 TEST_F(FormatTest, MacroDefinitionInsideStatement) { 2673 EXPECT_EQ("int x,\n" 2674 "#define A\n" 2675 " y;", 2676 format("int x,\n#define A\ny;")); 2677 } 2678 2679 TEST_F(FormatTest, HashInMacroDefinition) { 2680 EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle())); 2681 verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11)); 2682 verifyFormat("#define A \\\n" 2683 " { \\\n" 2684 " f(#c); \\\n" 2685 " }", 2686 getLLVMStyleWithColumns(11)); 2687 2688 verifyFormat("#define A(X) \\\n" 2689 " void function##X()", 2690 getLLVMStyleWithColumns(22)); 2691 2692 verifyFormat("#define A(a, b, c) \\\n" 2693 " void a##b##c()", 2694 getLLVMStyleWithColumns(22)); 2695 2696 verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22)); 2697 } 2698 2699 TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) { 2700 EXPECT_EQ("#define A (x)", format("#define A (x)")); 2701 EXPECT_EQ("#define A(x)", format("#define A(x)")); 2702 } 2703 2704 TEST_F(FormatTest, EmptyLinesInMacroDefinitions) { 2705 EXPECT_EQ("#define A b;", format("#define A \\\n" 2706 " \\\n" 2707 " b;", 2708 getLLVMStyleWithColumns(25))); 2709 EXPECT_EQ("#define A \\\n" 2710 " \\\n" 2711 " a; \\\n" 2712 " b;", 2713 format("#define A \\\n" 2714 " \\\n" 2715 " a; \\\n" 2716 " b;", 2717 getLLVMStyleWithColumns(11))); 2718 EXPECT_EQ("#define A \\\n" 2719 " a; \\\n" 2720 " \\\n" 2721 " b;", 2722 format("#define A \\\n" 2723 " a; \\\n" 2724 " \\\n" 2725 " b;", 2726 getLLVMStyleWithColumns(11))); 2727 } 2728 2729 TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) { 2730 verifyIncompleteFormat("#define A :"); 2731 verifyFormat("#define SOMECASES \\\n" 2732 " case 1: \\\n" 2733 " case 2\n", 2734 getLLVMStyleWithColumns(20)); 2735 verifyFormat("#define A template <typename T>"); 2736 verifyIncompleteFormat("#define STR(x) #x\n" 2737 "f(STR(this_is_a_string_literal{));"); 2738 verifyFormat("#pragma omp threadprivate( \\\n" 2739 " y)), // expected-warning", 2740 getLLVMStyleWithColumns(28)); 2741 verifyFormat("#d, = };"); 2742 verifyFormat("#if \"a"); 2743 verifyIncompleteFormat("({\n" 2744 "#define b \\\n" 2745 " } \\\n" 2746 " a\n" 2747 "a", 2748 getLLVMStyleWithColumns(15)); 2749 verifyFormat("#define A \\\n" 2750 " { \\\n" 2751 " {\n" 2752 "#define B \\\n" 2753 " } \\\n" 2754 " }", 2755 getLLVMStyleWithColumns(15)); 2756 verifyNoCrash("#if a\na(\n#else\n#endif\n{a"); 2757 verifyNoCrash("a={0,1\n#if a\n#else\n;\n#endif\n}"); 2758 verifyNoCrash("#if a\na(\n#else\n#endif\n) a {a,b,c,d,f,g};"); 2759 verifyNoCrash("#ifdef A\n a(\n #else\n #endif\n) = []() { \n)}"); 2760 } 2761 2762 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) { 2763 verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline. 2764 EXPECT_EQ("class A : public QObject {\n" 2765 " Q_OBJECT\n" 2766 "\n" 2767 " A() {}\n" 2768 "};", 2769 format("class A : public QObject {\n" 2770 " Q_OBJECT\n" 2771 "\n" 2772 " A() {\n}\n" 2773 "} ;")); 2774 EXPECT_EQ("MACRO\n" 2775 "/*static*/ int i;", 2776 format("MACRO\n" 2777 " /*static*/ int i;")); 2778 EXPECT_EQ("SOME_MACRO\n" 2779 "namespace {\n" 2780 "void f();\n" 2781 "}", 2782 format("SOME_MACRO\n" 2783 " namespace {\n" 2784 "void f( );\n" 2785 "}")); 2786 // Only if the identifier contains at least 5 characters. 2787 EXPECT_EQ("HTTP f();", format("HTTP\nf();")); 2788 EXPECT_EQ("MACRO\nf();", format("MACRO\nf();")); 2789 // Only if everything is upper case. 2790 EXPECT_EQ("class A : public QObject {\n" 2791 " Q_Object A() {}\n" 2792 "};", 2793 format("class A : public QObject {\n" 2794 " Q_Object\n" 2795 " A() {\n}\n" 2796 "} ;")); 2797 2798 // Only if the next line can actually start an unwrapped line. 2799 EXPECT_EQ("SOME_WEIRD_LOG_MACRO << SomeThing;", 2800 format("SOME_WEIRD_LOG_MACRO\n" 2801 "<< SomeThing;")); 2802 2803 verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), " 2804 "(n, buffers))\n", 2805 getChromiumStyle(FormatStyle::LK_Cpp)); 2806 } 2807 2808 TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) { 2809 EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2810 "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2811 "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2812 "class X {};\n" 2813 "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2814 "int *createScopDetectionPass() { return 0; }", 2815 format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2816 " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2817 " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2818 " class X {};\n" 2819 " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2820 " int *createScopDetectionPass() { return 0; }")); 2821 // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as 2822 // braces, so that inner block is indented one level more. 2823 EXPECT_EQ("int q() {\n" 2824 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2825 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2826 " IPC_END_MESSAGE_MAP()\n" 2827 "}", 2828 format("int q() {\n" 2829 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2830 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2831 " IPC_END_MESSAGE_MAP()\n" 2832 "}")); 2833 2834 // Same inside macros. 2835 EXPECT_EQ("#define LIST(L) \\\n" 2836 " L(A) \\\n" 2837 " L(B) \\\n" 2838 " L(C)", 2839 format("#define LIST(L) \\\n" 2840 " L(A) \\\n" 2841 " L(B) \\\n" 2842 " L(C)", 2843 getGoogleStyle())); 2844 2845 // These must not be recognized as macros. 2846 EXPECT_EQ("int q() {\n" 2847 " f(x);\n" 2848 " f(x) {}\n" 2849 " f(x)->g();\n" 2850 " f(x)->*g();\n" 2851 " f(x).g();\n" 2852 " f(x) = x;\n" 2853 " f(x) += x;\n" 2854 " f(x) -= x;\n" 2855 " f(x) *= x;\n" 2856 " f(x) /= x;\n" 2857 " f(x) %= x;\n" 2858 " f(x) &= x;\n" 2859 " f(x) |= x;\n" 2860 " f(x) ^= x;\n" 2861 " f(x) >>= x;\n" 2862 " f(x) <<= x;\n" 2863 " f(x)[y].z();\n" 2864 " LOG(INFO) << x;\n" 2865 " ifstream(x) >> x;\n" 2866 "}\n", 2867 format("int q() {\n" 2868 " f(x)\n;\n" 2869 " f(x)\n {}\n" 2870 " f(x)\n->g();\n" 2871 " f(x)\n->*g();\n" 2872 " f(x)\n.g();\n" 2873 " f(x)\n = x;\n" 2874 " f(x)\n += x;\n" 2875 " f(x)\n -= x;\n" 2876 " f(x)\n *= x;\n" 2877 " f(x)\n /= x;\n" 2878 " f(x)\n %= x;\n" 2879 " f(x)\n &= x;\n" 2880 " f(x)\n |= x;\n" 2881 " f(x)\n ^= x;\n" 2882 " f(x)\n >>= x;\n" 2883 " f(x)\n <<= x;\n" 2884 " f(x)\n[y].z();\n" 2885 " LOG(INFO)\n << x;\n" 2886 " ifstream(x)\n >> x;\n" 2887 "}\n")); 2888 EXPECT_EQ("int q() {\n" 2889 " F(x)\n" 2890 " if (1) {\n" 2891 " }\n" 2892 " F(x)\n" 2893 " while (1) {\n" 2894 " }\n" 2895 " F(x)\n" 2896 " G(x);\n" 2897 " F(x)\n" 2898 " try {\n" 2899 " Q();\n" 2900 " } catch (...) {\n" 2901 " }\n" 2902 "}\n", 2903 format("int q() {\n" 2904 "F(x)\n" 2905 "if (1) {}\n" 2906 "F(x)\n" 2907 "while (1) {}\n" 2908 "F(x)\n" 2909 "G(x);\n" 2910 "F(x)\n" 2911 "try { Q(); } catch (...) {}\n" 2912 "}\n")); 2913 EXPECT_EQ("class A {\n" 2914 " A() : t(0) {}\n" 2915 " A(int i) noexcept() : {}\n" 2916 " A(X x)\n" // FIXME: function-level try blocks are broken. 2917 " try : t(0) {\n" 2918 " } catch (...) {\n" 2919 " }\n" 2920 "};", 2921 format("class A {\n" 2922 " A()\n : t(0) {}\n" 2923 " A(int i)\n noexcept() : {}\n" 2924 " A(X x)\n" 2925 " try : t(0) {} catch (...) {}\n" 2926 "};")); 2927 EXPECT_EQ("class SomeClass {\n" 2928 "public:\n" 2929 " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2930 "};", 2931 format("class SomeClass {\n" 2932 "public:\n" 2933 " SomeClass()\n" 2934 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2935 "};")); 2936 EXPECT_EQ("class SomeClass {\n" 2937 "public:\n" 2938 " SomeClass()\n" 2939 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2940 "};", 2941 format("class SomeClass {\n" 2942 "public:\n" 2943 " SomeClass()\n" 2944 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2945 "};", 2946 getLLVMStyleWithColumns(40))); 2947 2948 verifyFormat("MACRO(>)"); 2949 } 2950 2951 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) { 2952 verifyFormat("#define A \\\n" 2953 " f({ \\\n" 2954 " g(); \\\n" 2955 " });", 2956 getLLVMStyleWithColumns(11)); 2957 } 2958 2959 TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) { 2960 EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}")); 2961 } 2962 2963 TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) { 2964 verifyFormat("{\n { a #c; }\n}"); 2965 } 2966 2967 TEST_F(FormatTest, FormatUnbalancedStructuralElements) { 2968 EXPECT_EQ("#define A \\\n { \\\n {\nint i;", 2969 format("#define A { {\nint i;", getLLVMStyleWithColumns(11))); 2970 EXPECT_EQ("#define A \\\n } \\\n }\nint i;", 2971 format("#define A } }\nint i;", getLLVMStyleWithColumns(11))); 2972 } 2973 2974 TEST_F(FormatTest, EscapedNewlines) { 2975 EXPECT_EQ( 2976 "#define A \\\n int i; \\\n int j;", 2977 format("#define A \\\nint i;\\\n int j;", getLLVMStyleWithColumns(11))); 2978 EXPECT_EQ("#define A\n\nint i;", format("#define A \\\n\n int i;")); 2979 EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();")); 2980 EXPECT_EQ("/* \\ \\ \\\n*/", format("\\\n/* \\ \\ \\\n*/")); 2981 EXPECT_EQ("<a\n\\\\\n>", format("<a\n\\\\\n>")); 2982 } 2983 2984 TEST_F(FormatTest, DontCrashOnBlockComments) { 2985 EXPECT_EQ( 2986 "int xxxxxxxxx; /* " 2987 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\n" 2988 "zzzzzz\n" 2989 "0*/", 2990 format("int xxxxxxxxx; /* " 2991 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy zzzzzz\n" 2992 "0*/")); 2993 } 2994 2995 TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) { 2996 verifyFormat("#define A \\\n" 2997 " int v( \\\n" 2998 " a); \\\n" 2999 " int i;", 3000 getLLVMStyleWithColumns(11)); 3001 } 3002 3003 TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) { 3004 EXPECT_EQ( 3005 "#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 3006 " \\\n" 3007 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 3008 "\n" 3009 "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 3010 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n", 3011 format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro(" 3012 "\\\n" 3013 "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 3014 " \n" 3015 " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 3016 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n")); 3017 } 3018 3019 TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) { 3020 EXPECT_EQ("int\n" 3021 "#define A\n" 3022 " a;", 3023 format("int\n#define A\na;")); 3024 verifyFormat("functionCallTo(\n" 3025 " someOtherFunction(\n" 3026 " withSomeParameters, whichInSequence,\n" 3027 " areLongerThanALine(andAnotherCall,\n" 3028 "#define A B\n" 3029 " withMoreParamters,\n" 3030 " whichStronglyInfluenceTheLayout),\n" 3031 " andMoreParameters),\n" 3032 " trailing);", 3033 getLLVMStyleWithColumns(69)); 3034 verifyFormat("Foo::Foo()\n" 3035 "#ifdef BAR\n" 3036 " : baz(0)\n" 3037 "#endif\n" 3038 "{\n" 3039 "}"); 3040 verifyFormat("void f() {\n" 3041 " if (true)\n" 3042 "#ifdef A\n" 3043 " f(42);\n" 3044 " x();\n" 3045 "#else\n" 3046 " g();\n" 3047 " x();\n" 3048 "#endif\n" 3049 "}"); 3050 verifyFormat("void f(param1, param2,\n" 3051 " param3,\n" 3052 "#ifdef A\n" 3053 " param4(param5,\n" 3054 "#ifdef A1\n" 3055 " param6,\n" 3056 "#ifdef A2\n" 3057 " param7),\n" 3058 "#else\n" 3059 " param8),\n" 3060 " param9,\n" 3061 "#endif\n" 3062 " param10,\n" 3063 "#endif\n" 3064 " param11)\n" 3065 "#else\n" 3066 " param12)\n" 3067 "#endif\n" 3068 "{\n" 3069 " x();\n" 3070 "}", 3071 getLLVMStyleWithColumns(28)); 3072 verifyFormat("#if 1\n" 3073 "int i;"); 3074 verifyFormat("#if 1\n" 3075 "#endif\n" 3076 "#if 1\n" 3077 "#else\n" 3078 "#endif\n"); 3079 verifyFormat("DEBUG({\n" 3080 " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3081 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 3082 "});\n" 3083 "#if a\n" 3084 "#else\n" 3085 "#endif"); 3086 3087 verifyIncompleteFormat("void f(\n" 3088 "#if A\n" 3089 " );\n" 3090 "#else\n" 3091 "#endif"); 3092 } 3093 3094 TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) { 3095 verifyFormat("#endif\n" 3096 "#if B"); 3097 } 3098 3099 TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) { 3100 FormatStyle SingleLine = getLLVMStyle(); 3101 SingleLine.AllowShortIfStatementsOnASingleLine = true; 3102 verifyFormat("#if 0\n" 3103 "#elif 1\n" 3104 "#endif\n" 3105 "void foo() {\n" 3106 " if (test) foo2();\n" 3107 "}", 3108 SingleLine); 3109 } 3110 3111 TEST_F(FormatTest, LayoutBlockInsideParens) { 3112 verifyFormat("functionCall({ int i; });"); 3113 verifyFormat("functionCall({\n" 3114 " int i;\n" 3115 " int j;\n" 3116 "});"); 3117 verifyFormat("functionCall(\n" 3118 " {\n" 3119 " int i;\n" 3120 " int j;\n" 3121 " },\n" 3122 " aaaa, bbbb, cccc);"); 3123 verifyFormat("functionA(functionB({\n" 3124 " int i;\n" 3125 " int j;\n" 3126 " }),\n" 3127 " aaaa, bbbb, cccc);"); 3128 verifyFormat("functionCall(\n" 3129 " {\n" 3130 " int i;\n" 3131 " int j;\n" 3132 " },\n" 3133 " aaaa, bbbb, // comment\n" 3134 " cccc);"); 3135 verifyFormat("functionA(functionB({\n" 3136 " int i;\n" 3137 " int j;\n" 3138 " }),\n" 3139 " aaaa, bbbb, // comment\n" 3140 " cccc);"); 3141 verifyFormat("functionCall(aaaa, bbbb, { int i; });"); 3142 verifyFormat("functionCall(aaaa, bbbb, {\n" 3143 " int i;\n" 3144 " int j;\n" 3145 "});"); 3146 verifyFormat( 3147 "Aaa(\n" // FIXME: There shouldn't be a linebreak here. 3148 " {\n" 3149 " int i; // break\n" 3150 " },\n" 3151 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 3152 " ccccccccccccccccc));"); 3153 verifyFormat("DEBUG({\n" 3154 " if (a)\n" 3155 " f();\n" 3156 "});"); 3157 } 3158 3159 TEST_F(FormatTest, LayoutBlockInsideStatement) { 3160 EXPECT_EQ("SOME_MACRO { int i; }\n" 3161 "int i;", 3162 format(" SOME_MACRO {int i;} int i;")); 3163 } 3164 3165 TEST_F(FormatTest, LayoutNestedBlocks) { 3166 verifyFormat("void AddOsStrings(unsigned bitmask) {\n" 3167 " struct s {\n" 3168 " int i;\n" 3169 " };\n" 3170 " s kBitsToOs[] = {{10}};\n" 3171 " for (int i = 0; i < 10; ++i)\n" 3172 " return;\n" 3173 "}"); 3174 verifyFormat("call(parameter, {\n" 3175 " something();\n" 3176 " // Comment using all columns.\n" 3177 " somethingelse();\n" 3178 "});", 3179 getLLVMStyleWithColumns(40)); 3180 verifyFormat("DEBUG( //\n" 3181 " { f(); }, a);"); 3182 verifyFormat("DEBUG( //\n" 3183 " {\n" 3184 " f(); //\n" 3185 " },\n" 3186 " a);"); 3187 3188 EXPECT_EQ("call(parameter, {\n" 3189 " something();\n" 3190 " // Comment too\n" 3191 " // looooooooooong.\n" 3192 " somethingElse();\n" 3193 "});", 3194 format("call(parameter, {\n" 3195 " something();\n" 3196 " // Comment too looooooooooong.\n" 3197 " somethingElse();\n" 3198 "});", 3199 getLLVMStyleWithColumns(29))); 3200 EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });")); 3201 EXPECT_EQ("DEBUG({ // comment\n" 3202 " int i;\n" 3203 "});", 3204 format("DEBUG({ // comment\n" 3205 "int i;\n" 3206 "});")); 3207 EXPECT_EQ("DEBUG({\n" 3208 " int i;\n" 3209 "\n" 3210 " // comment\n" 3211 " int j;\n" 3212 "});", 3213 format("DEBUG({\n" 3214 " int i;\n" 3215 "\n" 3216 " // comment\n" 3217 " int j;\n" 3218 "});")); 3219 3220 verifyFormat("DEBUG({\n" 3221 " if (a)\n" 3222 " return;\n" 3223 "});"); 3224 verifyGoogleFormat("DEBUG({\n" 3225 " if (a) return;\n" 3226 "});"); 3227 FormatStyle Style = getGoogleStyle(); 3228 Style.ColumnLimit = 45; 3229 verifyFormat("Debug(aaaaa,\n" 3230 " {\n" 3231 " if (aaaaaaaaaaaaaaaaaaaaaaaa) return;\n" 3232 " },\n" 3233 " a);", 3234 Style); 3235 3236 verifyFormat("SomeFunction({MACRO({ return output; }), b});"); 3237 3238 verifyNoCrash("^{v^{a}}"); 3239 } 3240 3241 TEST_F(FormatTest, FormatNestedBlocksInMacros) { 3242 EXPECT_EQ("#define MACRO() \\\n" 3243 " Debug(aaa, /* force line break */ \\\n" 3244 " { \\\n" 3245 " int i; \\\n" 3246 " int j; \\\n" 3247 " })", 3248 format("#define MACRO() Debug(aaa, /* force line break */ \\\n" 3249 " { int i; int j; })", 3250 getGoogleStyle())); 3251 3252 EXPECT_EQ("#define A \\\n" 3253 " [] { \\\n" 3254 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3255 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); \\\n" 3256 " }", 3257 format("#define A [] { xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3258 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); }", 3259 getGoogleStyle())); 3260 } 3261 3262 TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) { 3263 EXPECT_EQ("{}", format("{}")); 3264 verifyFormat("enum E {};"); 3265 verifyFormat("enum E {}"); 3266 } 3267 3268 TEST_F(FormatTest, FormatBeginBlockEndMacros) { 3269 FormatStyle Style = getLLVMStyle(); 3270 Style.MacroBlockBegin = "^[A-Z_]+_BEGIN$"; 3271 Style.MacroBlockEnd = "^[A-Z_]+_END$"; 3272 verifyFormat("FOO_BEGIN\n" 3273 " FOO_ENTRY\n" 3274 "FOO_END", Style); 3275 verifyFormat("FOO_BEGIN\n" 3276 " NESTED_FOO_BEGIN\n" 3277 " NESTED_FOO_ENTRY\n" 3278 " NESTED_FOO_END\n" 3279 "FOO_END", Style); 3280 verifyFormat("FOO_BEGIN(Foo, Bar)\n" 3281 " int x;\n" 3282 " x = 1;\n" 3283 "FOO_END(Baz)", Style); 3284 } 3285 3286 //===----------------------------------------------------------------------===// 3287 // Line break tests. 3288 //===----------------------------------------------------------------------===// 3289 3290 TEST_F(FormatTest, PreventConfusingIndents) { 3291 verifyFormat( 3292 "void f() {\n" 3293 " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n" 3294 " parameter, parameter, parameter)),\n" 3295 " SecondLongCall(parameter));\n" 3296 "}"); 3297 verifyFormat( 3298 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3299 " aaaaaaaaaaaaaaaaaaaaaaaa(\n" 3300 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3301 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 3302 verifyFormat( 3303 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3304 " [aaaaaaaaaaaaaaaaaaaaaaaa\n" 3305 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 3306 " [aaaaaaaaaaaaaaaaaaaaaaaa]];"); 3307 verifyFormat( 3308 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 3309 " aaaaaaaaaaaaaaaaaaaaaaaa<\n" 3310 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n" 3311 " aaaaaaaaaaaaaaaaaaaaaaaa>;"); 3312 verifyFormat("int a = bbbb && ccc && fffff(\n" 3313 "#define A Just forcing a new line\n" 3314 " ddd);"); 3315 } 3316 3317 TEST_F(FormatTest, LineBreakingInBinaryExpressions) { 3318 verifyFormat( 3319 "bool aaaaaaa =\n" 3320 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n" 3321 " bbbbbbbb();"); 3322 verifyFormat( 3323 "bool aaaaaaa =\n" 3324 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() or\n" 3325 " bbbbbbbb();"); 3326 3327 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3328 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n" 3329 " ccccccccc == ddddddddddd;"); 3330 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3331 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb and\n" 3332 " ccccccccc == ddddddddddd;"); 3333 verifyFormat( 3334 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 3335 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa not_eq bbbbbbbbbbbbbbbbbb and\n" 3336 " ccccccccc == ddddddddddd;"); 3337 3338 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3339 " aaaaaa) &&\n" 3340 " bbbbbb && cccccc;"); 3341 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3342 " aaaaaa) >>\n" 3343 " bbbbbb;"); 3344 verifyFormat("aa = Whitespaces.addUntouchableComment(\n" 3345 " SourceMgr.getSpellingColumnNumber(\n" 3346 " TheLine.Last->FormatTok.Tok.getLocation()) -\n" 3347 " 1);"); 3348 3349 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3350 " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n" 3351 " cccccc) {\n}"); 3352 verifyFormat("b = a &&\n" 3353 " // Comment\n" 3354 " b.c && d;"); 3355 3356 // If the LHS of a comparison is not a binary expression itself, the 3357 // additional linebreak confuses many people. 3358 verifyFormat( 3359 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3360 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n" 3361 "}"); 3362 verifyFormat( 3363 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3364 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3365 "}"); 3366 verifyFormat( 3367 "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n" 3368 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3369 "}"); 3370 // Even explicit parentheses stress the precedence enough to make the 3371 // additional break unnecessary. 3372 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3373 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3374 "}"); 3375 // This cases is borderline, but with the indentation it is still readable. 3376 verifyFormat( 3377 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3378 " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3379 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 3380 "}", 3381 getLLVMStyleWithColumns(75)); 3382 3383 // If the LHS is a binary expression, we should still use the additional break 3384 // as otherwise the formatting hides the operator precedence. 3385 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3386 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3387 " 5) {\n" 3388 "}"); 3389 3390 FormatStyle OnePerLine = getLLVMStyle(); 3391 OnePerLine.BinPackParameters = false; 3392 verifyFormat( 3393 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3394 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3395 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}", 3396 OnePerLine); 3397 } 3398 3399 TEST_F(FormatTest, ExpressionIndentation) { 3400 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3401 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3402 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3403 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3404 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n" 3405 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n" 3406 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3407 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n" 3408 " ccccccccccccccccccccccccccccccccccccccccc;"); 3409 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3410 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3411 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3412 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3413 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3414 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3415 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3416 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3417 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3418 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3419 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3420 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3421 verifyFormat("if () {\n" 3422 "} else if (aaaaa &&\n" 3423 " bbbbb > // break\n" 3424 " ccccc) {\n" 3425 "}"); 3426 3427 // Presence of a trailing comment used to change indentation of b. 3428 verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n" 3429 " b;\n" 3430 "return aaaaaaaaaaaaaaaaaaa +\n" 3431 " b; //", 3432 getLLVMStyleWithColumns(30)); 3433 } 3434 3435 TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) { 3436 // Not sure what the best system is here. Like this, the LHS can be found 3437 // immediately above an operator (everything with the same or a higher 3438 // indent). The RHS is aligned right of the operator and so compasses 3439 // everything until something with the same indent as the operator is found. 3440 // FIXME: Is this a good system? 3441 FormatStyle Style = getLLVMStyle(); 3442 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 3443 verifyFormat( 3444 "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3445 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3446 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3447 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3448 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3449 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3450 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3451 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3452 " > ccccccccccccccccccccccccccccccccccccccccc;", 3453 Style); 3454 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3455 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3456 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3457 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3458 Style); 3459 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3460 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3461 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3462 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3463 Style); 3464 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3465 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3466 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3467 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3468 Style); 3469 verifyFormat("if () {\n" 3470 "} else if (aaaaa\n" 3471 " && bbbbb // break\n" 3472 " > ccccc) {\n" 3473 "}", 3474 Style); 3475 verifyFormat("return (a)\n" 3476 " // comment\n" 3477 " + b;", 3478 Style); 3479 verifyFormat( 3480 "int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3481 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3482 " + cc;", 3483 Style); 3484 3485 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3486 " = aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 3487 Style); 3488 3489 // Forced by comments. 3490 verifyFormat( 3491 "unsigned ContentSize =\n" 3492 " sizeof(int16_t) // DWARF ARange version number\n" 3493 " + sizeof(int32_t) // Offset of CU in the .debug_info section\n" 3494 " + sizeof(int8_t) // Pointer Size (in bytes)\n" 3495 " + sizeof(int8_t); // Segment Size (in bytes)"); 3496 3497 verifyFormat("return boost::fusion::at_c<0>(iiii).second\n" 3498 " == boost::fusion::at_c<1>(iiii).second;", 3499 Style); 3500 3501 Style.ColumnLimit = 60; 3502 verifyFormat("zzzzzzzzzz\n" 3503 " = bbbbbbbbbbbbbbbbb\n" 3504 " >> aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa);", 3505 Style); 3506 } 3507 3508 TEST_F(FormatTest, NoOperandAlignment) { 3509 FormatStyle Style = getLLVMStyle(); 3510 Style.AlignOperands = false; 3511 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3512 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3513 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3514 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3515 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3516 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3517 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3518 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3519 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3520 " > ccccccccccccccccccccccccccccccccccccccccc;", 3521 Style); 3522 3523 verifyFormat("int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3524 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3525 " + cc;", 3526 Style); 3527 verifyFormat("int a = aa\n" 3528 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3529 " * cccccccccccccccccccccccccccccccccccc;", 3530 Style); 3531 3532 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 3533 verifyFormat("return (a > b\n" 3534 " // comment1\n" 3535 " // comment2\n" 3536 " || c);", 3537 Style); 3538 } 3539 3540 TEST_F(FormatTest, BreakingBeforeNonAssigmentOperators) { 3541 FormatStyle Style = getLLVMStyle(); 3542 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3543 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 3544 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3545 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;", 3546 Style); 3547 } 3548 3549 TEST_F(FormatTest, ConstructorInitializers) { 3550 verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}"); 3551 verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}", 3552 getLLVMStyleWithColumns(45)); 3553 verifyFormat("Constructor()\n" 3554 " : Inttializer(FitsOnTheLine) {}", 3555 getLLVMStyleWithColumns(44)); 3556 verifyFormat("Constructor()\n" 3557 " : Inttializer(FitsOnTheLine) {}", 3558 getLLVMStyleWithColumns(43)); 3559 3560 verifyFormat("template <typename T>\n" 3561 "Constructor() : Initializer(FitsOnTheLine) {}", 3562 getLLVMStyleWithColumns(45)); 3563 3564 verifyFormat( 3565 "SomeClass::Constructor()\n" 3566 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3567 3568 verifyFormat( 3569 "SomeClass::Constructor()\n" 3570 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3571 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}"); 3572 verifyFormat( 3573 "SomeClass::Constructor()\n" 3574 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3575 " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3576 verifyFormat("Constructor(aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3577 " aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3578 " : aaaaaaaaaa(aaaaaa) {}"); 3579 3580 verifyFormat("Constructor()\n" 3581 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3582 " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3583 " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3584 " aaaaaaaaaaaaaaaaaaaaaaa() {}"); 3585 3586 verifyFormat("Constructor()\n" 3587 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3588 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3589 3590 verifyFormat("Constructor(int Parameter = 0)\n" 3591 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n" 3592 " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}"); 3593 verifyFormat("Constructor()\n" 3594 " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n" 3595 "}", 3596 getLLVMStyleWithColumns(60)); 3597 verifyFormat("Constructor()\n" 3598 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3599 " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}"); 3600 3601 // Here a line could be saved by splitting the second initializer onto two 3602 // lines, but that is not desirable. 3603 verifyFormat("Constructor()\n" 3604 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n" 3605 " aaaaaaaaaaa(aaaaaaaaaaa),\n" 3606 " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3607 3608 FormatStyle OnePerLine = getLLVMStyle(); 3609 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3610 verifyFormat("SomeClass::Constructor()\n" 3611 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3612 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3613 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3614 OnePerLine); 3615 verifyFormat("SomeClass::Constructor()\n" 3616 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n" 3617 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3618 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3619 OnePerLine); 3620 verifyFormat("MyClass::MyClass(int var)\n" 3621 " : some_var_(var), // 4 space indent\n" 3622 " some_other_var_(var + 1) { // lined up\n" 3623 "}", 3624 OnePerLine); 3625 verifyFormat("Constructor()\n" 3626 " : aaaaa(aaaaaa),\n" 3627 " aaaaa(aaaaaa),\n" 3628 " aaaaa(aaaaaa),\n" 3629 " aaaaa(aaaaaa),\n" 3630 " aaaaa(aaaaaa) {}", 3631 OnePerLine); 3632 verifyFormat("Constructor()\n" 3633 " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n" 3634 " aaaaaaaaaaaaaaaaaaaaaa) {}", 3635 OnePerLine); 3636 OnePerLine.ColumnLimit = 60; 3637 verifyFormat("Constructor()\n" 3638 " : aaaaaaaaaaaaaaaaaaaa(a),\n" 3639 " bbbbbbbbbbbbbbbbbbbbbbbb(b) {}", 3640 OnePerLine); 3641 3642 EXPECT_EQ("Constructor()\n" 3643 " : // Comment forcing unwanted break.\n" 3644 " aaaa(aaaa) {}", 3645 format("Constructor() :\n" 3646 " // Comment forcing unwanted break.\n" 3647 " aaaa(aaaa) {}")); 3648 } 3649 3650 TEST_F(FormatTest, MemoizationTests) { 3651 // This breaks if the memoization lookup does not take \c Indent and 3652 // \c LastSpace into account. 3653 verifyFormat( 3654 "extern CFRunLoopTimerRef\n" 3655 "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n" 3656 " CFTimeInterval interval, CFOptionFlags flags,\n" 3657 " CFIndex order, CFRunLoopTimerCallBack callout,\n" 3658 " CFRunLoopTimerContext *context) {}"); 3659 3660 // Deep nesting somewhat works around our memoization. 3661 verifyFormat( 3662 "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3663 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3664 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3665 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3666 " aaaaa())))))))))))))))))))))))))))))))))))))));", 3667 getLLVMStyleWithColumns(65)); 3668 verifyFormat( 3669 "aaaaa(\n" 3670 " aaaaa,\n" 3671 " aaaaa(\n" 3672 " aaaaa,\n" 3673 " aaaaa(\n" 3674 " aaaaa,\n" 3675 " aaaaa(\n" 3676 " aaaaa,\n" 3677 " aaaaa(\n" 3678 " aaaaa,\n" 3679 " aaaaa(\n" 3680 " aaaaa,\n" 3681 " aaaaa(\n" 3682 " aaaaa,\n" 3683 " aaaaa(\n" 3684 " aaaaa,\n" 3685 " aaaaa(\n" 3686 " aaaaa,\n" 3687 " aaaaa(\n" 3688 " aaaaa,\n" 3689 " aaaaa(\n" 3690 " aaaaa,\n" 3691 " aaaaa(\n" 3692 " aaaaa,\n" 3693 " aaaaa))))))))))));", 3694 getLLVMStyleWithColumns(65)); 3695 verifyFormat( 3696 "a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(), a), a), a), a),\n" 3697 " a),\n" 3698 " a),\n" 3699 " a),\n" 3700 " a),\n" 3701 " a),\n" 3702 " a),\n" 3703 " a),\n" 3704 " a),\n" 3705 " a),\n" 3706 " a),\n" 3707 " a),\n" 3708 " a),\n" 3709 " a),\n" 3710 " a),\n" 3711 " a),\n" 3712 " a),\n" 3713 " a)", 3714 getLLVMStyleWithColumns(65)); 3715 3716 // This test takes VERY long when memoization is broken. 3717 FormatStyle OnePerLine = getLLVMStyle(); 3718 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3719 OnePerLine.BinPackParameters = false; 3720 std::string input = "Constructor()\n" 3721 " : aaaa(a,\n"; 3722 for (unsigned i = 0, e = 80; i != e; ++i) { 3723 input += " a,\n"; 3724 } 3725 input += " a) {}"; 3726 verifyFormat(input, OnePerLine); 3727 } 3728 3729 TEST_F(FormatTest, BreaksAsHighAsPossible) { 3730 verifyFormat( 3731 "void f() {\n" 3732 " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n" 3733 " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n" 3734 " f();\n" 3735 "}"); 3736 verifyFormat("if (Intervals[i].getRange().getFirst() <\n" 3737 " Intervals[i - 1].getRange().getLast()) {\n}"); 3738 } 3739 3740 TEST_F(FormatTest, BreaksFunctionDeclarations) { 3741 // Principially, we break function declarations in a certain order: 3742 // 1) break amongst arguments. 3743 verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n" 3744 " Cccccccccccccc cccccccccccccc);"); 3745 verifyFormat("template <class TemplateIt>\n" 3746 "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n" 3747 " TemplateIt *stop) {}"); 3748 3749 // 2) break after return type. 3750 verifyFormat( 3751 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3752 "bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);", 3753 getGoogleStyle()); 3754 3755 // 3) break after (. 3756 verifyFormat( 3757 "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n" 3758 " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);", 3759 getGoogleStyle()); 3760 3761 // 4) break before after nested name specifiers. 3762 verifyFormat( 3763 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3764 "SomeClasssssssssssssssssssssssssssssssssssssss::\n" 3765 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);", 3766 getGoogleStyle()); 3767 3768 // However, there are exceptions, if a sufficient amount of lines can be 3769 // saved. 3770 // FIXME: The precise cut-offs wrt. the number of saved lines might need some 3771 // more adjusting. 3772 verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3773 " Cccccccccccccc cccccccccc,\n" 3774 " Cccccccccccccc cccccccccc,\n" 3775 " Cccccccccccccc cccccccccc,\n" 3776 " Cccccccccccccc cccccccccc);"); 3777 verifyFormat( 3778 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3779 "bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3780 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3781 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);", 3782 getGoogleStyle()); 3783 verifyFormat( 3784 "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3785 " Cccccccccccccc cccccccccc,\n" 3786 " Cccccccccccccc cccccccccc,\n" 3787 " Cccccccccccccc cccccccccc,\n" 3788 " Cccccccccccccc cccccccccc,\n" 3789 " Cccccccccccccc cccccccccc,\n" 3790 " Cccccccccccccc cccccccccc);"); 3791 verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3792 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3793 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3794 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3795 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);"); 3796 3797 // Break after multi-line parameters. 3798 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3799 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3800 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3801 " bbbb bbbb);"); 3802 verifyFormat("void SomeLoooooooooooongFunction(\n" 3803 " std::unique_ptr<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 3804 " aaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3805 " int bbbbbbbbbbbbb);"); 3806 3807 // Treat overloaded operators like other functions. 3808 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3809 "operator>(const SomeLoooooooooooooooooooooooooogType &other);"); 3810 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3811 "operator>>(const SomeLooooooooooooooooooooooooogType &other);"); 3812 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3813 "operator<<(const SomeLooooooooooooooooooooooooogType &other);"); 3814 verifyGoogleFormat( 3815 "SomeLoooooooooooooooooooooooooooooogType operator>>(\n" 3816 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3817 verifyGoogleFormat( 3818 "SomeLoooooooooooooooooooooooooooooogType operator<<(\n" 3819 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3820 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3821 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3822 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n" 3823 "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3824 verifyGoogleFormat( 3825 "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n" 3826 "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3827 " bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}"); 3828 3829 FormatStyle Style = getLLVMStyle(); 3830 Style.PointerAlignment = FormatStyle::PAS_Left; 3831 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3832 " aaaaaaaaaaaaaaaaaaaaaaaaa* const aaaaaaaaaaaa) {}", 3833 Style); 3834 verifyFormat("void aaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n" 3835 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 3836 Style); 3837 } 3838 3839 TEST_F(FormatTest, TrailingReturnType) { 3840 verifyFormat("auto foo() -> int;\n"); 3841 verifyFormat("struct S {\n" 3842 " auto bar() const -> int;\n" 3843 "};"); 3844 verifyFormat("template <size_t Order, typename T>\n" 3845 "auto load_img(const std::string &filename)\n" 3846 " -> alias::tensor<Order, T, mem::tag::cpu> {}"); 3847 verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n" 3848 " -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}"); 3849 verifyFormat("auto doSomething(Aaaaaa *aaaaaa) -> decltype(aaaaaa->f()) {}"); 3850 verifyFormat("template <typename T>\n" 3851 "auto aaaaaaaaaaaaaaaaaaaaaa(T t)\n" 3852 " -> decltype(eaaaaaaaaaaaaaaa<T>(t.a).aaaaaaaa());"); 3853 3854 // Not trailing return types. 3855 verifyFormat("void f() { auto a = b->c(); }"); 3856 } 3857 3858 TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) { 3859 // Avoid breaking before trailing 'const' or other trailing annotations, if 3860 // they are not function-like. 3861 FormatStyle Style = getGoogleStyle(); 3862 Style.ColumnLimit = 47; 3863 verifyFormat("void someLongFunction(\n" 3864 " int someLoooooooooooooongParameter) const {\n}", 3865 getLLVMStyleWithColumns(47)); 3866 verifyFormat("LoooooongReturnType\n" 3867 "someLoooooooongFunction() const {}", 3868 getLLVMStyleWithColumns(47)); 3869 verifyFormat("LoooooongReturnType someLoooooooongFunction()\n" 3870 " const {}", 3871 Style); 3872 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3873 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;"); 3874 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3875 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;"); 3876 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3877 " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;"); 3878 verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n" 3879 " aaaaaaaaaaa aaaaa) const override;"); 3880 verifyGoogleFormat( 3881 "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3882 " const override;"); 3883 3884 // Even if the first parameter has to be wrapped. 3885 verifyFormat("void someLongFunction(\n" 3886 " int someLongParameter) const {}", 3887 getLLVMStyleWithColumns(46)); 3888 verifyFormat("void someLongFunction(\n" 3889 " int someLongParameter) const {}", 3890 Style); 3891 verifyFormat("void someLongFunction(\n" 3892 " int someLongParameter) override {}", 3893 Style); 3894 verifyFormat("void someLongFunction(\n" 3895 " int someLongParameter) OVERRIDE {}", 3896 Style); 3897 verifyFormat("void someLongFunction(\n" 3898 " int someLongParameter) final {}", 3899 Style); 3900 verifyFormat("void someLongFunction(\n" 3901 " int someLongParameter) FINAL {}", 3902 Style); 3903 verifyFormat("void someLongFunction(\n" 3904 " int parameter) const override {}", 3905 Style); 3906 3907 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 3908 verifyFormat("void someLongFunction(\n" 3909 " int someLongParameter) const\n" 3910 "{\n" 3911 "}", 3912 Style); 3913 3914 // Unless these are unknown annotations. 3915 verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n" 3916 " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3917 " LONG_AND_UGLY_ANNOTATION;"); 3918 3919 // Breaking before function-like trailing annotations is fine to keep them 3920 // close to their arguments. 3921 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3922 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3923 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3924 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3925 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3926 " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}"); 3927 verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n" 3928 " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);"); 3929 verifyFormat("SomeFunction([](int i) LOCKS_EXCLUDED(a) {});"); 3930 3931 verifyFormat( 3932 "void aaaaaaaaaaaaaaaaaa()\n" 3933 " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n" 3934 " aaaaaaaaaaaaaaaaaaaaaaaaa));"); 3935 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3936 " __attribute__((unused));"); 3937 verifyGoogleFormat( 3938 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3939 " GUARDED_BY(aaaaaaaaaaaa);"); 3940 verifyGoogleFormat( 3941 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3942 " GUARDED_BY(aaaaaaaaaaaa);"); 3943 verifyGoogleFormat( 3944 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3945 " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3946 verifyGoogleFormat( 3947 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3948 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3949 } 3950 3951 TEST_F(FormatTest, FunctionAnnotations) { 3952 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3953 "int OldFunction(const string ¶meter) {}"); 3954 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3955 "string OldFunction(const string ¶meter) {}"); 3956 verifyFormat("template <typename T>\n" 3957 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3958 "string OldFunction(const string ¶meter) {}"); 3959 3960 // Not function annotations. 3961 verifyFormat("ASSERT(\"aaaaa\") << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3962 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"); 3963 verifyFormat("TEST_F(ThisIsATestFixtureeeeeeeeeeeee,\n" 3964 " ThisIsATestWithAReallyReallyReallyReallyLongName) {}"); 3965 } 3966 3967 TEST_F(FormatTest, BreaksDesireably) { 3968 verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3969 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3970 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}"); 3971 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3972 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 3973 "}"); 3974 3975 verifyFormat( 3976 "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3977 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3978 3979 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3980 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3981 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3982 3983 verifyFormat( 3984 "aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3985 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 3986 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3987 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));"); 3988 3989 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3990 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3991 3992 verifyFormat( 3993 "void f() {\n" 3994 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 3995 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 3996 "}"); 3997 verifyFormat( 3998 "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3999 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4000 verifyFormat( 4001 "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4002 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4003 verifyFormat("aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4004 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4005 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4006 4007 // Indent consistently independent of call expression and unary operator. 4008 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 4009 " dddddddddddddddddddddddddddddd));"); 4010 verifyFormat("aaaaaaaaaaa(!bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 4011 " dddddddddddddddddddddddddddddd));"); 4012 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n" 4013 " dddddddddddddddddddddddddddddd));"); 4014 4015 // This test case breaks on an incorrect memoization, i.e. an optimization not 4016 // taking into account the StopAt value. 4017 verifyFormat( 4018 "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4019 " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4020 " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4021 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4022 4023 verifyFormat("{\n {\n {\n" 4024 " Annotation.SpaceRequiredBefore =\n" 4025 " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n" 4026 " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n" 4027 " }\n }\n}"); 4028 4029 // Break on an outer level if there was a break on an inner level. 4030 EXPECT_EQ("f(g(h(a, // comment\n" 4031 " b, c),\n" 4032 " d, e),\n" 4033 " x, y);", 4034 format("f(g(h(a, // comment\n" 4035 " b, c), d, e), x, y);")); 4036 4037 // Prefer breaking similar line breaks. 4038 verifyFormat( 4039 "const int kTrackingOptions = NSTrackingMouseMoved |\n" 4040 " NSTrackingMouseEnteredAndExited |\n" 4041 " NSTrackingActiveAlways;"); 4042 } 4043 4044 TEST_F(FormatTest, FormatsDeclarationsOnePerLine) { 4045 FormatStyle NoBinPacking = getGoogleStyle(); 4046 NoBinPacking.BinPackParameters = false; 4047 NoBinPacking.BinPackArguments = true; 4048 verifyFormat("void f() {\n" 4049 " f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,\n" 4050 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4051 "}", 4052 NoBinPacking); 4053 verifyFormat("void f(int aaaaaaaaaaaaaaaaaaaa,\n" 4054 " int aaaaaaaaaaaaaaaaaaaa,\n" 4055 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4056 NoBinPacking); 4057 } 4058 4059 TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) { 4060 FormatStyle NoBinPacking = getGoogleStyle(); 4061 NoBinPacking.BinPackParameters = false; 4062 NoBinPacking.BinPackArguments = false; 4063 verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n" 4064 " aaaaaaaaaaaaaaaaaaaa,\n" 4065 " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);", 4066 NoBinPacking); 4067 verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n" 4068 " aaaaaaaaaaaaa,\n" 4069 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));", 4070 NoBinPacking); 4071 verifyFormat( 4072 "aaaaaaaa(aaaaaaaaaaaaa,\n" 4073 " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4074 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 4075 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4076 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));", 4077 NoBinPacking); 4078 verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4079 " .aaaaaaaaaaaaaaaaaa();", 4080 NoBinPacking); 4081 verifyFormat("void f() {\n" 4082 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4083 " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n" 4084 "}", 4085 NoBinPacking); 4086 4087 verifyFormat( 4088 "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4089 " aaaaaaaaaaaa,\n" 4090 " aaaaaaaaaaaa);", 4091 NoBinPacking); 4092 verifyFormat( 4093 "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n" 4094 " ddddddddddddddddddddddddddddd),\n" 4095 " test);", 4096 NoBinPacking); 4097 4098 verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n" 4099 " aaaaaaaaaaaaaaaaaaaaaaa,\n" 4100 " aaaaaaaaaaaaaaaaaaaaaaa>\n" 4101 " aaaaaaaaaaaaaaaaaa;", 4102 NoBinPacking); 4103 verifyFormat("a(\"a\"\n" 4104 " \"a\",\n" 4105 " a);"); 4106 4107 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 4108 verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n" 4109 " aaaaaaaaa,\n" 4110 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4111 NoBinPacking); 4112 verifyFormat( 4113 "void f() {\n" 4114 " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4115 " .aaaaaaa();\n" 4116 "}", 4117 NoBinPacking); 4118 verifyFormat( 4119 "template <class SomeType, class SomeOtherType>\n" 4120 "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}", 4121 NoBinPacking); 4122 } 4123 4124 TEST_F(FormatTest, AdaptiveOnePerLineFormatting) { 4125 FormatStyle Style = getLLVMStyleWithColumns(15); 4126 Style.ExperimentalAutoDetectBinPacking = true; 4127 EXPECT_EQ("aaa(aaaa,\n" 4128 " aaaa,\n" 4129 " aaaa);\n" 4130 "aaa(aaaa,\n" 4131 " aaaa,\n" 4132 " aaaa);", 4133 format("aaa(aaaa,\n" // one-per-line 4134 " aaaa,\n" 4135 " aaaa );\n" 4136 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4137 Style)); 4138 EXPECT_EQ("aaa(aaaa, aaaa,\n" 4139 " aaaa);\n" 4140 "aaa(aaaa, aaaa,\n" 4141 " aaaa);", 4142 format("aaa(aaaa, aaaa,\n" // bin-packed 4143 " aaaa );\n" 4144 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4145 Style)); 4146 } 4147 4148 TEST_F(FormatTest, FormatsBuilderPattern) { 4149 verifyFormat("return llvm::StringSwitch<Reference::Kind>(name)\n" 4150 " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n" 4151 " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n" 4152 " .StartsWith(\".init\", ORDER_INIT)\n" 4153 " .StartsWith(\".fini\", ORDER_FINI)\n" 4154 " .StartsWith(\".hash\", ORDER_HASH)\n" 4155 " .Default(ORDER_TEXT);\n"); 4156 4157 verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n" 4158 " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();"); 4159 verifyFormat( 4160 "aaaaaaa->aaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4161 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4162 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4163 verifyFormat( 4164 "aaaaaaa->aaaaaaa\n" 4165 " ->aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4166 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4167 verifyFormat( 4168 "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n" 4169 " aaaaaaaaaaaaaa);"); 4170 verifyFormat( 4171 "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n" 4172 " aaaaaa->aaaaaaaaaaaa()\n" 4173 " ->aaaaaaaaaaaaaaaa(\n" 4174 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4175 " ->aaaaaaaaaaaaaaaaa();"); 4176 verifyGoogleFormat( 4177 "void f() {\n" 4178 " someo->Add((new util::filetools::Handler(dir))\n" 4179 " ->OnEvent1(NewPermanentCallback(\n" 4180 " this, &HandlerHolderClass::EventHandlerCBA))\n" 4181 " ->OnEvent2(NewPermanentCallback(\n" 4182 " this, &HandlerHolderClass::EventHandlerCBB))\n" 4183 " ->OnEvent3(NewPermanentCallback(\n" 4184 " this, &HandlerHolderClass::EventHandlerCBC))\n" 4185 " ->OnEvent5(NewPermanentCallback(\n" 4186 " this, &HandlerHolderClass::EventHandlerCBD))\n" 4187 " ->OnEvent6(NewPermanentCallback(\n" 4188 " this, &HandlerHolderClass::EventHandlerCBE)));\n" 4189 "}"); 4190 4191 verifyFormat( 4192 "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();"); 4193 verifyFormat("aaaaaaaaaaaaaaa()\n" 4194 " .aaaaaaaaaaaaaaa()\n" 4195 " .aaaaaaaaaaaaaaa()\n" 4196 " .aaaaaaaaaaaaaaa()\n" 4197 " .aaaaaaaaaaaaaaa();"); 4198 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4199 " .aaaaaaaaaaaaaaa()\n" 4200 " .aaaaaaaaaaaaaaa()\n" 4201 " .aaaaaaaaaaaaaaa();"); 4202 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4203 " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4204 " .aaaaaaaaaaaaaaa();"); 4205 verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n" 4206 " ->aaaaaaaaaaaaaae(0)\n" 4207 " ->aaaaaaaaaaaaaaa();"); 4208 4209 // Don't linewrap after very short segments. 4210 verifyFormat("a().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4211 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4212 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4213 verifyFormat("aa().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4214 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4215 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4216 verifyFormat("aaa()\n" 4217 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4218 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4219 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4220 4221 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4222 " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4223 " .has<bbbbbbbbbbbbbbbbbbbbb>();"); 4224 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4225 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 4226 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();"); 4227 4228 // Prefer not to break after empty parentheses. 4229 verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n" 4230 " First->LastNewlineOffset);"); 4231 4232 // Prefer not to create "hanging" indents. 4233 verifyFormat( 4234 "return !soooooooooooooome_map\n" 4235 " .insert(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4236 " .second;"); 4237 } 4238 4239 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) { 4240 verifyFormat( 4241 "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 4242 " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}"); 4243 verifyFormat( 4244 "if (aaaaaaaaaaaaaaaaaaaaaaaaa or\n" 4245 " bbbbbbbbbbbbbbbbbbbbbbbbb and cccccccccccccccccccccccc) {\n}"); 4246 4247 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4248 " ccccccccccccccccccccccccc) {\n}"); 4249 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa and bbbbbbbbbbbbbbbbbbbbbbbb or\n" 4250 " ccccccccccccccccccccccccc) {\n}"); 4251 4252 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4253 " ccccccccccccccccccccccccc) {\n}"); 4254 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb or\n" 4255 " ccccccccccccccccccccccccc) {\n}"); 4256 4257 verifyFormat( 4258 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n" 4259 " ccccccccccccccccccccccccc) {\n}"); 4260 verifyFormat( 4261 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb) and\n" 4262 " ccccccccccccccccccccccccc) {\n}"); 4263 4264 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n" 4265 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n" 4266 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n" 4267 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4268 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA or\n" 4269 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB or\n" 4270 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC or\n" 4271 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4272 4273 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n" 4274 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n" 4275 " aaaaaaaaaaaaaaa != aa) {\n}"); 4276 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa or\n" 4277 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) and\n" 4278 " aaaaaaaaaaaaaaa != aa) {\n}"); 4279 } 4280 4281 TEST_F(FormatTest, BreaksAfterAssignments) { 4282 verifyFormat( 4283 "unsigned Cost =\n" 4284 " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n" 4285 " SI->getPointerAddressSpaceee());\n"); 4286 verifyFormat( 4287 "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n" 4288 " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());"); 4289 4290 verifyFormat( 4291 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n" 4292 " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);"); 4293 verifyFormat("unsigned OriginalStartColumn =\n" 4294 " SourceMgr.getSpellingColumnNumber(\n" 4295 " Current.FormatTok.getStartOfNonWhitespace()) -\n" 4296 " 1;"); 4297 } 4298 4299 TEST_F(FormatTest, AlignsAfterAssignments) { 4300 verifyFormat( 4301 "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4302 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4303 verifyFormat( 4304 "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4305 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4306 verifyFormat( 4307 "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4308 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4309 verifyFormat( 4310 "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4311 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4312 verifyFormat( 4313 "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4314 " aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4315 " aaaaaaaaaaaaaaaaaaaaaaaa;"); 4316 } 4317 4318 TEST_F(FormatTest, AlignsAfterReturn) { 4319 verifyFormat( 4320 "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4321 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4322 verifyFormat( 4323 "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4324 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4325 verifyFormat( 4326 "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4327 " aaaaaaaaaaaaaaaaaaaaaa();"); 4328 verifyFormat( 4329 "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4330 " aaaaaaaaaaaaaaaaaaaaaa());"); 4331 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4332 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4333 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4334 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n" 4335 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4336 verifyFormat("return\n" 4337 " // true if code is one of a or b.\n" 4338 " code == a || code == b;"); 4339 } 4340 4341 TEST_F(FormatTest, AlignsAfterOpenBracket) { 4342 verifyFormat( 4343 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4344 " aaaaaaaaa aaaaaaa) {}"); 4345 verifyFormat( 4346 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4347 " aaaaaaaaaaa aaaaaaaaa);"); 4348 verifyFormat( 4349 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4350 " aaaaaaaaaaaaaaaaaaaaa));"); 4351 FormatStyle Style = getLLVMStyle(); 4352 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4353 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4354 " aaaaaaaaaaa aaaaaaaa, aaaaaaaaa aaaaaaa) {}", 4355 Style); 4356 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4357 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaa aaaaaaaaa);", 4358 Style); 4359 verifyFormat("SomeLongVariableName->someFunction(\n" 4360 " foooooooo(aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa));", 4361 Style); 4362 verifyFormat( 4363 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4364 " aaaaaaaaa aaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4365 Style); 4366 verifyFormat( 4367 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4368 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4369 Style); 4370 verifyFormat( 4371 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4372 " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4373 Style); 4374 4375 Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak; 4376 Style.BinPackArguments = false; 4377 Style.BinPackParameters = false; 4378 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4379 " aaaaaaaaaaa aaaaaaaa,\n" 4380 " aaaaaaaaa aaaaaaa,\n" 4381 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4382 Style); 4383 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4384 " aaaaaaaaaaa aaaaaaaaa,\n" 4385 " aaaaaaaaaaa aaaaaaaaa,\n" 4386 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4387 Style); 4388 verifyFormat("SomeLongVariableName->someFunction(\n" 4389 " foooooooo(\n" 4390 " aaaaaaaaaaaaaaa,\n" 4391 " aaaaaaaaaaaaaaaaaaaaa,\n" 4392 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4393 Style); 4394 } 4395 4396 TEST_F(FormatTest, ParenthesesAndOperandAlignment) { 4397 FormatStyle Style = getLLVMStyleWithColumns(40); 4398 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4399 " bbbbbbbbbbbbbbbbbbbbbb);", 4400 Style); 4401 Style.AlignAfterOpenBracket = FormatStyle::BAS_Align; 4402 Style.AlignOperands = false; 4403 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4404 " bbbbbbbbbbbbbbbbbbbbbb);", 4405 Style); 4406 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4407 Style.AlignOperands = true; 4408 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4409 " bbbbbbbbbbbbbbbbbbbbbb);", 4410 Style); 4411 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4412 Style.AlignOperands = false; 4413 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4414 " bbbbbbbbbbbbbbbbbbbbbb);", 4415 Style); 4416 } 4417 4418 TEST_F(FormatTest, BreaksConditionalExpressions) { 4419 verifyFormat( 4420 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4421 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4422 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4423 verifyFormat( 4424 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4425 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4426 verifyFormat( 4427 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n" 4428 " : aaaaaaaaaaaaa);"); 4429 verifyFormat( 4430 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4431 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4432 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4433 " aaaaaaaaaaaaa);"); 4434 verifyFormat( 4435 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4436 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4437 " aaaaaaaaaaaaa);"); 4438 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4439 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4440 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4441 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4442 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4443 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4444 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4445 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4446 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4447 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4448 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4449 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4450 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4451 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4452 " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4453 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4454 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4455 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4456 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4457 " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4458 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4459 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4460 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4461 " : aaaaaaaaaaaaaaaa;"); 4462 verifyFormat( 4463 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4464 " ? aaaaaaaaaaaaaaa\n" 4465 " : aaaaaaaaaaaaaaa;"); 4466 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4467 " aaaaaaaaa\n" 4468 " ? b\n" 4469 " : c);"); 4470 verifyFormat("return aaaa == bbbb\n" 4471 " // comment\n" 4472 " ? aaaa\n" 4473 " : bbbb;"); 4474 verifyFormat("unsigned Indent =\n" 4475 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0\n" 4476 " ? IndentForLevel[TheLine.Level]\n" 4477 " : TheLine * 2,\n" 4478 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4479 getLLVMStyleWithColumns(70)); 4480 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4481 " ? aaaaaaaaaaaaaaa\n" 4482 " : bbbbbbbbbbbbbbb //\n" 4483 " ? ccccccccccccccc\n" 4484 " : ddddddddddddddd;"); 4485 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4486 " ? aaaaaaaaaaaaaaa\n" 4487 " : (bbbbbbbbbbbbbbb //\n" 4488 " ? ccccccccccccccc\n" 4489 " : ddddddddddddddd);"); 4490 verifyFormat( 4491 "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4492 " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4493 " aaaaaaaaaaaaaaaaaaaaa +\n" 4494 " aaaaaaaaaaaaaaaaaaaaa\n" 4495 " : aaaaaaaaaa;"); 4496 verifyFormat( 4497 "aaaaaa = aaaaaaaaaaaa\n" 4498 " ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4499 " : aaaaaaaaaaaaaaaaaaaaaa\n" 4500 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4501 4502 FormatStyle NoBinPacking = getLLVMStyle(); 4503 NoBinPacking.BinPackArguments = false; 4504 verifyFormat( 4505 "void f() {\n" 4506 " g(aaa,\n" 4507 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4508 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4509 " ? aaaaaaaaaaaaaaa\n" 4510 " : aaaaaaaaaaaaaaa);\n" 4511 "}", 4512 NoBinPacking); 4513 verifyFormat( 4514 "void f() {\n" 4515 " g(aaa,\n" 4516 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4517 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4518 " ?: aaaaaaaaaaaaaaa);\n" 4519 "}", 4520 NoBinPacking); 4521 4522 verifyFormat("SomeFunction(aaaaaaaaaaaaaaaaa,\n" 4523 " // comment.\n" 4524 " ccccccccccccccccccccccccccccccccccccccc\n" 4525 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4526 " : bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);"); 4527 4528 // Assignments in conditional expressions. Apparently not uncommon :-(. 4529 verifyFormat("return a != b\n" 4530 " // comment\n" 4531 " ? a = b\n" 4532 " : a = b;"); 4533 verifyFormat("return a != b\n" 4534 " // comment\n" 4535 " ? a = a != b\n" 4536 " // comment\n" 4537 " ? a = b\n" 4538 " : a\n" 4539 " : a;\n"); 4540 verifyFormat("return a != b\n" 4541 " // comment\n" 4542 " ? a\n" 4543 " : a = a != b\n" 4544 " // comment\n" 4545 " ? a = b\n" 4546 " : a;"); 4547 } 4548 4549 TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) { 4550 FormatStyle Style = getLLVMStyle(); 4551 Style.BreakBeforeTernaryOperators = false; 4552 Style.ColumnLimit = 70; 4553 verifyFormat( 4554 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4555 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4556 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4557 Style); 4558 verifyFormat( 4559 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4560 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4561 Style); 4562 verifyFormat( 4563 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n" 4564 " aaaaaaaaaaaaa);", 4565 Style); 4566 verifyFormat( 4567 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4568 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4569 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4570 " aaaaaaaaaaaaa);", 4571 Style); 4572 verifyFormat( 4573 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4574 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4575 " aaaaaaaaaaaaa);", 4576 Style); 4577 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4578 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4579 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4580 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4581 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4582 Style); 4583 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4584 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4585 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4586 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4587 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4588 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4589 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4590 Style); 4591 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4592 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n" 4593 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4594 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4595 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4596 Style); 4597 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4598 " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4599 " aaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4600 Style); 4601 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4602 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4603 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4604 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4605 Style); 4606 verifyFormat( 4607 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4608 " aaaaaaaaaaaaaaa :\n" 4609 " aaaaaaaaaaaaaaa;", 4610 Style); 4611 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4612 " aaaaaaaaa ?\n" 4613 " b :\n" 4614 " c);", 4615 Style); 4616 verifyFormat( 4617 "unsigned Indent =\n" 4618 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0 ?\n" 4619 " IndentForLevel[TheLine.Level] :\n" 4620 " TheLine * 2,\n" 4621 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4622 Style); 4623 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4624 " aaaaaaaaaaaaaaa :\n" 4625 " bbbbbbbbbbbbbbb ? //\n" 4626 " ccccccccccccccc :\n" 4627 " ddddddddddddddd;", 4628 Style); 4629 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4630 " aaaaaaaaaaaaaaa :\n" 4631 " (bbbbbbbbbbbbbbb ? //\n" 4632 " ccccccccccccccc :\n" 4633 " ddddddddddddddd);", 4634 Style); 4635 } 4636 4637 TEST_F(FormatTest, DeclarationsOfMultipleVariables) { 4638 verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n" 4639 " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();"); 4640 verifyFormat("bool a = true, b = false;"); 4641 4642 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4643 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n" 4644 " bbbbbbbbbbbbbbbbbbbbbbbbb =\n" 4645 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);"); 4646 verifyFormat( 4647 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 4648 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n" 4649 " d = e && f;"); 4650 verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n" 4651 " c = cccccccccccccccccccc, d = dddddddddddddddddddd;"); 4652 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4653 " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;"); 4654 verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n" 4655 " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;"); 4656 4657 FormatStyle Style = getGoogleStyle(); 4658 Style.PointerAlignment = FormatStyle::PAS_Left; 4659 Style.DerivePointerAlignment = false; 4660 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4661 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n" 4662 " *b = bbbbbbbbbbbbbbbbbbb;", 4663 Style); 4664 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4665 " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;", 4666 Style); 4667 } 4668 4669 TEST_F(FormatTest, ConditionalExpressionsInBrackets) { 4670 verifyFormat("arr[foo ? bar : baz];"); 4671 verifyFormat("f()[foo ? bar : baz];"); 4672 verifyFormat("(a + b)[foo ? bar : baz];"); 4673 verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];"); 4674 } 4675 4676 TEST_F(FormatTest, AlignsStringLiterals) { 4677 verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n" 4678 " \"short literal\");"); 4679 verifyFormat( 4680 "looooooooooooooooooooooooongFunction(\n" 4681 " \"short literal\"\n" 4682 " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");"); 4683 verifyFormat("someFunction(\"Always break between multi-line\"\n" 4684 " \" string literals\",\n" 4685 " and, other, parameters);"); 4686 EXPECT_EQ("fun + \"1243\" /* comment */\n" 4687 " \"5678\";", 4688 format("fun + \"1243\" /* comment */\n" 4689 " \"5678\";", 4690 getLLVMStyleWithColumns(28))); 4691 EXPECT_EQ( 4692 "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 4693 " \"aaaaaaaaaaaaaaaaaaaaa\"\n" 4694 " \"aaaaaaaaaaaaaaaa\";", 4695 format("aaaaaa =" 4696 "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa " 4697 "aaaaaaaaaaaaaaaaaaaaa\" " 4698 "\"aaaaaaaaaaaaaaaa\";")); 4699 verifyFormat("a = a + \"a\"\n" 4700 " \"a\"\n" 4701 " \"a\";"); 4702 verifyFormat("f(\"a\", \"b\"\n" 4703 " \"c\");"); 4704 4705 verifyFormat( 4706 "#define LL_FORMAT \"ll\"\n" 4707 "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n" 4708 " \"d, ddddddddd: %\" LL_FORMAT \"d\");"); 4709 4710 verifyFormat("#define A(X) \\\n" 4711 " \"aaaaa\" #X \"bbbbbb\" \\\n" 4712 " \"ccccc\"", 4713 getLLVMStyleWithColumns(23)); 4714 verifyFormat("#define A \"def\"\n" 4715 "f(\"abc\" A \"ghi\"\n" 4716 " \"jkl\");"); 4717 4718 verifyFormat("f(L\"a\"\n" 4719 " L\"b\");"); 4720 verifyFormat("#define A(X) \\\n" 4721 " L\"aaaaa\" #X L\"bbbbbb\" \\\n" 4722 " L\"ccccc\"", 4723 getLLVMStyleWithColumns(25)); 4724 4725 verifyFormat("f(@\"a\"\n" 4726 " @\"b\");"); 4727 verifyFormat("NSString s = @\"a\"\n" 4728 " @\"b\"\n" 4729 " @\"c\";"); 4730 verifyFormat("NSString s = @\"a\"\n" 4731 " \"b\"\n" 4732 " \"c\";"); 4733 } 4734 4735 TEST_F(FormatTest, ReturnTypeBreakingStyle) { 4736 FormatStyle Style = getLLVMStyle(); 4737 // No declarations or definitions should be moved to own line. 4738 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_None; 4739 verifyFormat("class A {\n" 4740 " int f() { return 1; }\n" 4741 " int g();\n" 4742 "};\n" 4743 "int f() { return 1; }\n" 4744 "int g();\n", 4745 Style); 4746 4747 // All declarations and definitions should have the return type moved to its 4748 // own 4749 // line. 4750 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All; 4751 verifyFormat("class E {\n" 4752 " int\n" 4753 " f() {\n" 4754 " return 1;\n" 4755 " }\n" 4756 " int\n" 4757 " g();\n" 4758 "};\n" 4759 "int\n" 4760 "f() {\n" 4761 " return 1;\n" 4762 "}\n" 4763 "int\n" 4764 "g();\n", 4765 Style); 4766 4767 // Top-level definitions, and no kinds of declarations should have the 4768 // return type moved to its own line. 4769 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_TopLevelDefinitions; 4770 verifyFormat("class B {\n" 4771 " int f() { return 1; }\n" 4772 " int g();\n" 4773 "};\n" 4774 "int\n" 4775 "f() {\n" 4776 " return 1;\n" 4777 "}\n" 4778 "int g();\n", 4779 Style); 4780 4781 // Top-level definitions and declarations should have the return type moved 4782 // to its own line. 4783 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_TopLevel; 4784 verifyFormat("class C {\n" 4785 " int f() { return 1; }\n" 4786 " int g();\n" 4787 "};\n" 4788 "int\n" 4789 "f() {\n" 4790 " return 1;\n" 4791 "}\n" 4792 "int\n" 4793 "g();\n", 4794 Style); 4795 4796 // All definitions should have the return type moved to its own line, but no 4797 // kinds of declarations. 4798 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions; 4799 verifyFormat("class D {\n" 4800 " int\n" 4801 " f() {\n" 4802 " return 1;\n" 4803 " }\n" 4804 " int g();\n" 4805 "};\n" 4806 "int\n" 4807 "f() {\n" 4808 " return 1;\n" 4809 "}\n" 4810 "int g();\n", 4811 Style); 4812 verifyFormat("const char *\n" 4813 "f(void) {\n" // Break here. 4814 " return \"\";\n" 4815 "}\n" 4816 "const char *bar(void);\n", // No break here. 4817 Style); 4818 verifyFormat("template <class T>\n" 4819 "T *\n" 4820 "f(T &c) {\n" // Break here. 4821 " return NULL;\n" 4822 "}\n" 4823 "template <class T> T *f(T &c);\n", // No break here. 4824 Style); 4825 verifyFormat("class C {\n" 4826 " int\n" 4827 " operator+() {\n" 4828 " return 1;\n" 4829 " }\n" 4830 " int\n" 4831 " operator()() {\n" 4832 " return 1;\n" 4833 " }\n" 4834 "};\n", 4835 Style); 4836 verifyFormat("void\n" 4837 "A::operator()() {}\n" 4838 "void\n" 4839 "A::operator>>() {}\n" 4840 "void\n" 4841 "A::operator+() {}\n", 4842 Style); 4843 verifyFormat("void *operator new(std::size_t s);", // No break here. 4844 Style); 4845 verifyFormat("void *\n" 4846 "operator new(std::size_t s) {}", 4847 Style); 4848 verifyFormat("void *\n" 4849 "operator delete[](void *ptr) {}", 4850 Style); 4851 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 4852 verifyFormat("const char *\n" 4853 "f(void)\n" // Break here. 4854 "{\n" 4855 " return \"\";\n" 4856 "}\n" 4857 "const char *bar(void);\n", // No break here. 4858 Style); 4859 verifyFormat("template <class T>\n" 4860 "T *\n" // Problem here: no line break 4861 "f(T &c)\n" // Break here. 4862 "{\n" 4863 " return NULL;\n" 4864 "}\n" 4865 "template <class T> T *f(T &c);\n", // No break here. 4866 Style); 4867 } 4868 4869 TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) { 4870 FormatStyle NoBreak = getLLVMStyle(); 4871 NoBreak.AlwaysBreakBeforeMultilineStrings = false; 4872 FormatStyle Break = getLLVMStyle(); 4873 Break.AlwaysBreakBeforeMultilineStrings = true; 4874 verifyFormat("aaaa = \"bbbb\"\n" 4875 " \"cccc\";", 4876 NoBreak); 4877 verifyFormat("aaaa =\n" 4878 " \"bbbb\"\n" 4879 " \"cccc\";", 4880 Break); 4881 verifyFormat("aaaa(\"bbbb\"\n" 4882 " \"cccc\");", 4883 NoBreak); 4884 verifyFormat("aaaa(\n" 4885 " \"bbbb\"\n" 4886 " \"cccc\");", 4887 Break); 4888 verifyFormat("aaaa(qqq, \"bbbb\"\n" 4889 " \"cccc\");", 4890 NoBreak); 4891 verifyFormat("aaaa(qqq,\n" 4892 " \"bbbb\"\n" 4893 " \"cccc\");", 4894 Break); 4895 verifyFormat("aaaa(qqq,\n" 4896 " L\"bbbb\"\n" 4897 " L\"cccc\");", 4898 Break); 4899 verifyFormat("aaaaa(aaaaaa, aaaaaaa(\"aaaa\"\n" 4900 " \"bbbb\"));", 4901 Break); 4902 verifyFormat("string s = someFunction(\n" 4903 " \"abc\"\n" 4904 " \"abc\");", 4905 Break); 4906 4907 // As we break before unary operators, breaking right after them is bad. 4908 verifyFormat("string foo = abc ? \"x\"\n" 4909 " \"blah blah blah blah blah blah\"\n" 4910 " : \"y\";", 4911 Break); 4912 4913 // Don't break if there is no column gain. 4914 verifyFormat("f(\"aaaa\"\n" 4915 " \"bbbb\");", 4916 Break); 4917 4918 // Treat literals with escaped newlines like multi-line string literals. 4919 EXPECT_EQ("x = \"a\\\n" 4920 "b\\\n" 4921 "c\";", 4922 format("x = \"a\\\n" 4923 "b\\\n" 4924 "c\";", 4925 NoBreak)); 4926 EXPECT_EQ("xxxx =\n" 4927 " \"a\\\n" 4928 "b\\\n" 4929 "c\";", 4930 format("xxxx = \"a\\\n" 4931 "b\\\n" 4932 "c\";", 4933 Break)); 4934 4935 // Exempt ObjC strings for now. 4936 EXPECT_EQ("NSString *const kString = @\"aaaa\"\n" 4937 " @\"bbbb\";", 4938 format("NSString *const kString = @\"aaaa\"\n" 4939 "@\"bbbb\";", 4940 Break)); 4941 4942 Break.ColumnLimit = 0; 4943 verifyFormat("const char *hello = \"hello llvm\";", Break); 4944 } 4945 4946 TEST_F(FormatTest, AlignsPipes) { 4947 verifyFormat( 4948 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4949 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4950 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4951 verifyFormat( 4952 "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n" 4953 " << aaaaaaaaaaaaaaaaaaaa;"); 4954 verifyFormat( 4955 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4956 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4957 verifyFormat( 4958 "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n" 4959 " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n" 4960 " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";"); 4961 verifyFormat( 4962 "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4963 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4964 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4965 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4966 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4967 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4968 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4969 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaaaaaa: \"\n" 4970 " << aaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaa);"); 4971 verifyFormat( 4972 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4973 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4974 4975 verifyFormat("return out << \"somepacket = {\\n\"\n" 4976 " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n" 4977 " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n" 4978 " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n" 4979 " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n" 4980 " << \"}\";"); 4981 4982 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4983 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4984 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;"); 4985 verifyFormat( 4986 "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n" 4987 " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n" 4988 " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n" 4989 " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n" 4990 " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;"); 4991 verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n" 4992 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4993 verifyFormat( 4994 "void f() {\n" 4995 " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n" 4996 " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4997 "}"); 4998 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n" 4999 " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();"); 5000 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5001 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5002 " aaaaaaaaaaaaaaaaaaaaa)\n" 5003 " << aaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5004 verifyFormat("LOG_IF(aaa == //\n" 5005 " bbb)\n" 5006 " << a << b;"); 5007 5008 // Breaking before the first "<<" is generally not desirable. 5009 verifyFormat( 5010 "llvm::errs()\n" 5011 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5012 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5013 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5014 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 5015 getLLVMStyleWithColumns(70)); 5016 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n" 5017 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5018 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 5019 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5020 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 5021 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 5022 getLLVMStyleWithColumns(70)); 5023 5024 // But sometimes, breaking before the first "<<" is desirable. 5025 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 5026 " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);"); 5027 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n" 5028 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5029 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5030 verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n" 5031 " << BEF << IsTemplate << Description << E->getType();"); 5032 5033 verifyFormat( 5034 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5035 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5036 5037 // Incomplete string literal. 5038 EXPECT_EQ("llvm::errs() << \"\n" 5039 " << a;", 5040 format("llvm::errs() << \"\n<<a;")); 5041 5042 verifyFormat("void f() {\n" 5043 " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n" 5044 " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n" 5045 "}"); 5046 5047 // Handle 'endl'. 5048 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << endl\n" 5049 " << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 5050 verifyFormat("llvm::errs() << endl << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 5051 } 5052 5053 TEST_F(FormatTest, UnderstandsEquals) { 5054 verifyFormat( 5055 "aaaaaaaaaaaaaaaaa =\n" 5056 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5057 verifyFormat( 5058 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5059 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 5060 verifyFormat( 5061 "if (a) {\n" 5062 " f();\n" 5063 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5064 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 5065 "}"); 5066 5067 verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5068 " 100000000 + 10000000) {\n}"); 5069 } 5070 5071 TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) { 5072 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 5073 " .looooooooooooooooooooooooooooooooooooooongFunction();"); 5074 5075 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 5076 " ->looooooooooooooooooooooooooooooooooooooongFunction();"); 5077 5078 verifyFormat( 5079 "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n" 5080 " Parameter2);"); 5081 5082 verifyFormat( 5083 "ShortObject->shortFunction(\n" 5084 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n" 5085 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);"); 5086 5087 verifyFormat("loooooooooooooongFunction(\n" 5088 " LoooooooooooooongObject->looooooooooooooooongFunction());"); 5089 5090 verifyFormat( 5091 "function(LoooooooooooooooooooooooooooooooooooongObject\n" 5092 " ->loooooooooooooooooooooooooooooooooooooooongFunction());"); 5093 5094 verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 5095 " .WillRepeatedly(Return(SomeValue));"); 5096 verifyFormat("void f() {\n" 5097 " EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 5098 " .Times(2)\n" 5099 " .WillRepeatedly(Return(SomeValue));\n" 5100 "}"); 5101 verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n" 5102 " ccccccccccccccccccccccc);"); 5103 verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5104 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5105 " .aaaaa(aaaaa),\n" 5106 " aaaaaaaaaaaaaaaaaaaaa);"); 5107 verifyFormat("void f() {\n" 5108 " aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5109 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n" 5110 "}"); 5111 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5112 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5113 " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5114 " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5115 " aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5116 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5117 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5118 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5119 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n" 5120 "}"); 5121 5122 // Here, it is not necessary to wrap at "." or "->". 5123 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n" 5124 " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 5125 verifyFormat( 5126 "aaaaaaaaaaa->aaaaaaaaa(\n" 5127 " aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5128 " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n"); 5129 5130 verifyFormat( 5131 "aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5132 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());"); 5133 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n" 5134 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5135 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n" 5136 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5137 5138 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5139 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5140 " .a();"); 5141 5142 FormatStyle NoBinPacking = getLLVMStyle(); 5143 NoBinPacking.BinPackParameters = false; 5144 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5145 " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5146 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n" 5147 " aaaaaaaaaaaaaaaaaaa,\n" 5148 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 5149 NoBinPacking); 5150 5151 // If there is a subsequent call, change to hanging indentation. 5152 verifyFormat( 5153 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5154 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n" 5155 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5156 verifyFormat( 5157 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5158 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));"); 5159 verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5160 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5161 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5162 verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5163 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5164 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5165 } 5166 5167 TEST_F(FormatTest, WrapsTemplateDeclarations) { 5168 verifyFormat("template <typename T>\n" 5169 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5170 verifyFormat("template <typename T>\n" 5171 "// T should be one of {A, B}.\n" 5172 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5173 verifyFormat( 5174 "template <typename T>\n" 5175 "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;"); 5176 verifyFormat("template <typename T>\n" 5177 "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n" 5178 " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);"); 5179 verifyFormat( 5180 "template <typename T>\n" 5181 "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n" 5182 " int Paaaaaaaaaaaaaaaaaaaaram2);"); 5183 verifyFormat( 5184 "template <typename T>\n" 5185 "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n" 5186 " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n" 5187 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5188 verifyFormat("template <typename T>\n" 5189 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5190 " int aaaaaaaaaaaaaaaaaaaaaa);"); 5191 verifyFormat( 5192 "template <typename T1, typename T2 = char, typename T3 = char,\n" 5193 " typename T4 = char>\n" 5194 "void f();"); 5195 verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n" 5196 " template <typename> class cccccccccccccccccccccc,\n" 5197 " typename ddddddddddddd>\n" 5198 "class C {};"); 5199 verifyFormat( 5200 "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n" 5201 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5202 5203 verifyFormat("void f() {\n" 5204 " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n" 5205 " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n" 5206 "}"); 5207 5208 verifyFormat("template <typename T> class C {};"); 5209 verifyFormat("template <typename T> void f();"); 5210 verifyFormat("template <typename T> void f() {}"); 5211 verifyFormat( 5212 "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5213 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5214 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n" 5215 " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5216 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5217 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n" 5218 " bbbbbbbbbbbbbbbbbbbbbbbb);", 5219 getLLVMStyleWithColumns(72)); 5220 EXPECT_EQ("static_cast<A< //\n" 5221 " B> *>(\n" 5222 "\n" 5223 " );", 5224 format("static_cast<A<//\n" 5225 " B>*>(\n" 5226 "\n" 5227 " );")); 5228 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5229 " const typename aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaa);"); 5230 5231 FormatStyle AlwaysBreak = getLLVMStyle(); 5232 AlwaysBreak.AlwaysBreakTemplateDeclarations = true; 5233 verifyFormat("template <typename T>\nclass C {};", AlwaysBreak); 5234 verifyFormat("template <typename T>\nvoid f();", AlwaysBreak); 5235 verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak); 5236 verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5237 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n" 5238 " ccccccccccccccccccccccccccccccccccccccccccccccc);"); 5239 verifyFormat("template <template <typename> class Fooooooo,\n" 5240 " template <typename> class Baaaaaaar>\n" 5241 "struct C {};", 5242 AlwaysBreak); 5243 verifyFormat("template <typename T> // T can be A, B or C.\n" 5244 "struct C {};", 5245 AlwaysBreak); 5246 } 5247 5248 TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) { 5249 verifyFormat( 5250 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5251 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5252 verifyFormat( 5253 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5254 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5255 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5256 5257 // FIXME: Should we have the extra indent after the second break? 5258 verifyFormat( 5259 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5260 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5261 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5262 5263 verifyFormat( 5264 "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n" 5265 " cccccccccccccccccccccccccccccccccccccccccccccc());"); 5266 5267 // Breaking at nested name specifiers is generally not desirable. 5268 verifyFormat( 5269 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5270 " aaaaaaaaaaaaaaaaaaaaaaa);"); 5271 5272 verifyFormat( 5273 "aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5274 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5275 " aaaaaaaaaaaaaaaaaaaaa);", 5276 getLLVMStyleWithColumns(74)); 5277 5278 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5279 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5280 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5281 } 5282 5283 TEST_F(FormatTest, UnderstandsTemplateParameters) { 5284 verifyFormat("A<int> a;"); 5285 verifyFormat("A<A<A<int>>> a;"); 5286 verifyFormat("A<A<A<int, 2>, 3>, 4> a;"); 5287 verifyFormat("bool x = a < 1 || 2 > a;"); 5288 verifyFormat("bool x = 5 < f<int>();"); 5289 verifyFormat("bool x = f<int>() > 5;"); 5290 verifyFormat("bool x = 5 < a<int>::x;"); 5291 verifyFormat("bool x = a < 4 ? a > 2 : false;"); 5292 verifyFormat("bool x = f() ? a < 2 : a > 2;"); 5293 5294 verifyGoogleFormat("A<A<int>> a;"); 5295 verifyGoogleFormat("A<A<A<int>>> a;"); 5296 verifyGoogleFormat("A<A<A<A<int>>>> a;"); 5297 verifyGoogleFormat("A<A<int> > a;"); 5298 verifyGoogleFormat("A<A<A<int> > > a;"); 5299 verifyGoogleFormat("A<A<A<A<int> > > > a;"); 5300 verifyGoogleFormat("A<::A<int>> a;"); 5301 verifyGoogleFormat("A<::A> a;"); 5302 verifyGoogleFormat("A< ::A> a;"); 5303 verifyGoogleFormat("A< ::A<int> > a;"); 5304 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle())); 5305 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle())); 5306 EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle())); 5307 EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle())); 5308 EXPECT_EQ("auto x = [] { A<A<A<A>>> a; };", 5309 format("auto x=[]{A<A<A<A> >> a;};", getGoogleStyle())); 5310 5311 verifyFormat("A<A>> a;", getChromiumStyle(FormatStyle::LK_Cpp)); 5312 5313 verifyFormat("test >> a >> b;"); 5314 verifyFormat("test << a >> b;"); 5315 5316 verifyFormat("f<int>();"); 5317 verifyFormat("template <typename T> void f() {}"); 5318 verifyFormat("struct A<std::enable_if<sizeof(T2) < sizeof(int32)>::type>;"); 5319 verifyFormat("struct A<std::enable_if<sizeof(T2) ? sizeof(int32) : " 5320 "sizeof(char)>::type>;"); 5321 verifyFormat("template <class T> struct S<std::is_arithmetic<T>{}> {};"); 5322 5323 // Not template parameters. 5324 verifyFormat("return a < b && c > d;"); 5325 verifyFormat("void f() {\n" 5326 " while (a < b && c > d) {\n" 5327 " }\n" 5328 "}"); 5329 verifyFormat("template <typename... Types>\n" 5330 "typename enable_if<0 < sizeof...(Types)>::type Foo() {}"); 5331 5332 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5333 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);", 5334 getLLVMStyleWithColumns(60)); 5335 verifyFormat("static_assert(is_convertible<A &&, B>::value, \"AAA\");"); 5336 verifyFormat("Constructor(A... a) : a_(X<A>{std::forward<A>(a)}...) {}"); 5337 verifyFormat("< < < < < < < < < < < < < < < < < < < < < < < < < < < < < <"); 5338 } 5339 5340 TEST_F(FormatTest, UnderstandsBinaryOperators) { 5341 verifyFormat("COMPARE(a, ==, b);"); 5342 } 5343 5344 TEST_F(FormatTest, UnderstandsPointersToMembers) { 5345 verifyFormat("int A::*x;"); 5346 verifyFormat("int (S::*func)(void *);"); 5347 verifyFormat("void f() { int (S::*func)(void *); }"); 5348 verifyFormat("typedef bool *(Class::*Member)() const;"); 5349 verifyFormat("void f() {\n" 5350 " (a->*f)();\n" 5351 " a->*x;\n" 5352 " (a.*f)();\n" 5353 " ((*a).*f)();\n" 5354 " a.*x;\n" 5355 "}"); 5356 verifyFormat("void f() {\n" 5357 " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5358 " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n" 5359 "}"); 5360 verifyFormat( 5361 "(aaaaaaaaaa->*bbbbbbb)(\n" 5362 " aaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5363 FormatStyle Style = getLLVMStyle(); 5364 Style.PointerAlignment = FormatStyle::PAS_Left; 5365 verifyFormat("typedef bool* (Class::*Member)() const;", Style); 5366 } 5367 5368 TEST_F(FormatTest, UnderstandsUnaryOperators) { 5369 verifyFormat("int a = -2;"); 5370 verifyFormat("f(-1, -2, -3);"); 5371 verifyFormat("a[-1] = 5;"); 5372 verifyFormat("int a = 5 + -2;"); 5373 verifyFormat("if (i == -1) {\n}"); 5374 verifyFormat("if (i != -1) {\n}"); 5375 verifyFormat("if (i > -1) {\n}"); 5376 verifyFormat("if (i < -1) {\n}"); 5377 verifyFormat("++(a->f());"); 5378 verifyFormat("--(a->f());"); 5379 verifyFormat("(a->f())++;"); 5380 verifyFormat("a[42]++;"); 5381 verifyFormat("if (!(a->f())) {\n}"); 5382 5383 verifyFormat("a-- > b;"); 5384 verifyFormat("b ? -a : c;"); 5385 verifyFormat("n * sizeof char16;"); 5386 verifyFormat("n * alignof char16;", getGoogleStyle()); 5387 verifyFormat("sizeof(char);"); 5388 verifyFormat("alignof(char);", getGoogleStyle()); 5389 5390 verifyFormat("return -1;"); 5391 verifyFormat("switch (a) {\n" 5392 "case -1:\n" 5393 " break;\n" 5394 "}"); 5395 verifyFormat("#define X -1"); 5396 verifyFormat("#define X -kConstant"); 5397 5398 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};"); 5399 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};"); 5400 5401 verifyFormat("int a = /* confusing comment */ -1;"); 5402 // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case. 5403 verifyFormat("int a = i /* confusing comment */++;"); 5404 } 5405 5406 TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) { 5407 verifyFormat("if (!aaaaaaaaaa( // break\n" 5408 " aaaaa)) {\n" 5409 "}"); 5410 verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n" 5411 " aaaaa));"); 5412 verifyFormat("*aaa = aaaaaaa( // break\n" 5413 " bbbbbb);"); 5414 } 5415 5416 TEST_F(FormatTest, UnderstandsOverloadedOperators) { 5417 verifyFormat("bool operator<();"); 5418 verifyFormat("bool operator>();"); 5419 verifyFormat("bool operator=();"); 5420 verifyFormat("bool operator==();"); 5421 verifyFormat("bool operator!=();"); 5422 verifyFormat("int operator+();"); 5423 verifyFormat("int operator++();"); 5424 verifyFormat("bool operator();"); 5425 verifyFormat("bool operator()();"); 5426 verifyFormat("bool operator[]();"); 5427 verifyFormat("operator bool();"); 5428 verifyFormat("operator int();"); 5429 verifyFormat("operator void *();"); 5430 verifyFormat("operator SomeType<int>();"); 5431 verifyFormat("operator SomeType<int, int>();"); 5432 verifyFormat("operator SomeType<SomeType<int>>();"); 5433 verifyFormat("void *operator new(std::size_t size);"); 5434 verifyFormat("void *operator new[](std::size_t size);"); 5435 verifyFormat("void operator delete(void *ptr);"); 5436 verifyFormat("void operator delete[](void *ptr);"); 5437 verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n" 5438 "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);"); 5439 5440 verifyFormat( 5441 "ostream &operator<<(ostream &OutputStream,\n" 5442 " SomeReallyLongType WithSomeReallyLongValue);"); 5443 verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n" 5444 " const aaaaaaaaaaaaaaaaaaaaa &right) {\n" 5445 " return left.group < right.group;\n" 5446 "}"); 5447 verifyFormat("SomeType &operator=(const SomeType &S);"); 5448 verifyFormat("f.template operator()<int>();"); 5449 5450 verifyGoogleFormat("operator void*();"); 5451 verifyGoogleFormat("operator SomeType<SomeType<int>>();"); 5452 verifyGoogleFormat("operator ::A();"); 5453 5454 verifyFormat("using A::operator+;"); 5455 verifyFormat("inline A operator^(const A &lhs, const A &rhs) {}\n" 5456 "int i;"); 5457 } 5458 5459 TEST_F(FormatTest, UnderstandsFunctionRefQualification) { 5460 verifyFormat("Deleted &operator=(const Deleted &) & = default;"); 5461 verifyFormat("Deleted &operator=(const Deleted &) && = delete;"); 5462 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;"); 5463 verifyFormat("SomeType MemberFunction(const Deleted &) && = delete;"); 5464 verifyFormat("Deleted &operator=(const Deleted &) &;"); 5465 verifyFormat("Deleted &operator=(const Deleted &) &&;"); 5466 verifyFormat("SomeType MemberFunction(const Deleted &) &;"); 5467 verifyFormat("SomeType MemberFunction(const Deleted &) &&;"); 5468 verifyFormat("SomeType MemberFunction(const Deleted &) && {}"); 5469 verifyFormat("SomeType MemberFunction(const Deleted &) && final {}"); 5470 verifyFormat("SomeType MemberFunction(const Deleted &) && override {}"); 5471 5472 FormatStyle AlignLeft = getLLVMStyle(); 5473 AlignLeft.PointerAlignment = FormatStyle::PAS_Left; 5474 verifyFormat("Deleted& operator=(const Deleted&) & = default;", AlignLeft); 5475 verifyFormat("SomeType MemberFunction(const Deleted&) & = delete;", 5476 AlignLeft); 5477 verifyFormat("Deleted& operator=(const Deleted&) &;", AlignLeft); 5478 verifyFormat("SomeType MemberFunction(const Deleted&) &;", AlignLeft); 5479 5480 FormatStyle Spaces = getLLVMStyle(); 5481 Spaces.SpacesInCStyleCastParentheses = true; 5482 verifyFormat("Deleted &operator=(const Deleted &) & = default;", Spaces); 5483 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;", Spaces); 5484 verifyFormat("Deleted &operator=(const Deleted &) &;", Spaces); 5485 verifyFormat("SomeType MemberFunction(const Deleted &) &;", Spaces); 5486 5487 Spaces.SpacesInCStyleCastParentheses = false; 5488 Spaces.SpacesInParentheses = true; 5489 verifyFormat("Deleted &operator=( const Deleted & ) & = default;", Spaces); 5490 verifyFormat("SomeType MemberFunction( const Deleted & ) & = delete;", Spaces); 5491 verifyFormat("Deleted &operator=( const Deleted & ) &;", Spaces); 5492 verifyFormat("SomeType MemberFunction( const Deleted & ) &;", Spaces); 5493 } 5494 5495 TEST_F(FormatTest, UnderstandsNewAndDelete) { 5496 verifyFormat("void f() {\n" 5497 " A *a = new A;\n" 5498 " A *a = new (placement) A;\n" 5499 " delete a;\n" 5500 " delete (A *)a;\n" 5501 "}"); 5502 verifyFormat("new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5503 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5504 verifyFormat("auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5505 " new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5506 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5507 verifyFormat("delete[] h->p;"); 5508 } 5509 5510 TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) { 5511 verifyFormat("int *f(int *a) {}"); 5512 verifyFormat("int main(int argc, char **argv) {}"); 5513 verifyFormat("Test::Test(int b) : a(b * b) {}"); 5514 verifyIndependentOfContext("f(a, *a);"); 5515 verifyFormat("void g() { f(*a); }"); 5516 verifyIndependentOfContext("int a = b * 10;"); 5517 verifyIndependentOfContext("int a = 10 * b;"); 5518 verifyIndependentOfContext("int a = b * c;"); 5519 verifyIndependentOfContext("int a += b * c;"); 5520 verifyIndependentOfContext("int a -= b * c;"); 5521 verifyIndependentOfContext("int a *= b * c;"); 5522 verifyIndependentOfContext("int a /= b * c;"); 5523 verifyIndependentOfContext("int a = *b;"); 5524 verifyIndependentOfContext("int a = *b * c;"); 5525 verifyIndependentOfContext("int a = b * *c;"); 5526 verifyIndependentOfContext("int a = b * (10);"); 5527 verifyIndependentOfContext("S << b * (10);"); 5528 verifyIndependentOfContext("return 10 * b;"); 5529 verifyIndependentOfContext("return *b * *c;"); 5530 verifyIndependentOfContext("return a & ~b;"); 5531 verifyIndependentOfContext("f(b ? *c : *d);"); 5532 verifyIndependentOfContext("int a = b ? *c : *d;"); 5533 verifyIndependentOfContext("*b = a;"); 5534 verifyIndependentOfContext("a * ~b;"); 5535 verifyIndependentOfContext("a * !b;"); 5536 verifyIndependentOfContext("a * +b;"); 5537 verifyIndependentOfContext("a * -b;"); 5538 verifyIndependentOfContext("a * ++b;"); 5539 verifyIndependentOfContext("a * --b;"); 5540 verifyIndependentOfContext("a[4] * b;"); 5541 verifyIndependentOfContext("a[a * a] = 1;"); 5542 verifyIndependentOfContext("f() * b;"); 5543 verifyIndependentOfContext("a * [self dostuff];"); 5544 verifyIndependentOfContext("int x = a * (a + b);"); 5545 verifyIndependentOfContext("(a *)(a + b);"); 5546 verifyIndependentOfContext("*(int *)(p & ~3UL) = 0;"); 5547 verifyIndependentOfContext("int *pa = (int *)&a;"); 5548 verifyIndependentOfContext("return sizeof(int **);"); 5549 verifyIndependentOfContext("return sizeof(int ******);"); 5550 verifyIndependentOfContext("return (int **&)a;"); 5551 verifyIndependentOfContext("f((*PointerToArray)[10]);"); 5552 verifyFormat("void f(Type (*parameter)[10]) {}"); 5553 verifyFormat("void f(Type (¶meter)[10]) {}"); 5554 verifyGoogleFormat("return sizeof(int**);"); 5555 verifyIndependentOfContext("Type **A = static_cast<Type **>(P);"); 5556 verifyGoogleFormat("Type** A = static_cast<Type**>(P);"); 5557 verifyFormat("auto a = [](int **&, int ***) {};"); 5558 verifyFormat("auto PointerBinding = [](const char *S) {};"); 5559 verifyFormat("typedef typeof(int(int, int)) *MyFunc;"); 5560 verifyFormat("[](const decltype(*a) &value) {}"); 5561 verifyFormat("decltype(a * b) F();"); 5562 verifyFormat("#define MACRO() [](A *a) { return 1; }"); 5563 verifyIndependentOfContext("typedef void (*f)(int *a);"); 5564 verifyIndependentOfContext("int i{a * b};"); 5565 verifyIndependentOfContext("aaa && aaa->f();"); 5566 verifyIndependentOfContext("int x = ~*p;"); 5567 verifyFormat("Constructor() : a(a), area(width * height) {}"); 5568 verifyFormat("Constructor() : a(a), area(a, width * height) {}"); 5569 verifyGoogleFormat("MACRO Constructor(const int& i) : a(a), b(b) {}"); 5570 verifyFormat("void f() { f(a, c * d); }"); 5571 verifyFormat("void f() { f(new a(), c * d); }"); 5572 5573 verifyIndependentOfContext("InvalidRegions[*R] = 0;"); 5574 5575 verifyIndependentOfContext("A<int *> a;"); 5576 verifyIndependentOfContext("A<int **> a;"); 5577 verifyIndependentOfContext("A<int *, int *> a;"); 5578 verifyIndependentOfContext("A<int *[]> a;"); 5579 verifyIndependentOfContext( 5580 "const char *const p = reinterpret_cast<const char *const>(q);"); 5581 verifyIndependentOfContext("A<int **, int **> a;"); 5582 verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);"); 5583 verifyFormat("for (char **a = b; *a; ++a) {\n}"); 5584 verifyFormat("for (; a && b;) {\n}"); 5585 verifyFormat("bool foo = true && [] { return false; }();"); 5586 5587 verifyFormat( 5588 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5589 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5590 5591 verifyGoogleFormat("**outparam = 1;"); 5592 verifyGoogleFormat("*outparam = a * b;"); 5593 verifyGoogleFormat("int main(int argc, char** argv) {}"); 5594 verifyGoogleFormat("A<int*> a;"); 5595 verifyGoogleFormat("A<int**> a;"); 5596 verifyGoogleFormat("A<int*, int*> a;"); 5597 verifyGoogleFormat("A<int**, int**> a;"); 5598 verifyGoogleFormat("f(b ? *c : *d);"); 5599 verifyGoogleFormat("int a = b ? *c : *d;"); 5600 verifyGoogleFormat("Type* t = **x;"); 5601 verifyGoogleFormat("Type* t = *++*x;"); 5602 verifyGoogleFormat("*++*x;"); 5603 verifyGoogleFormat("Type* t = const_cast<T*>(&*x);"); 5604 verifyGoogleFormat("Type* t = x++ * y;"); 5605 verifyGoogleFormat( 5606 "const char* const p = reinterpret_cast<const char* const>(q);"); 5607 verifyGoogleFormat("void f(int i = 0, SomeType** temps = NULL);"); 5608 verifyGoogleFormat("void f(Bar* a = nullptr, Bar* b);"); 5609 verifyGoogleFormat("template <typename T>\n" 5610 "void f(int i = 0, SomeType** temps = NULL);"); 5611 5612 FormatStyle Left = getLLVMStyle(); 5613 Left.PointerAlignment = FormatStyle::PAS_Left; 5614 verifyFormat("x = *a(x) = *a(y);", Left); 5615 verifyFormat("for (;; * = b) {\n}", Left); 5616 5617 verifyIndependentOfContext("a = *(x + y);"); 5618 verifyIndependentOfContext("a = &(x + y);"); 5619 verifyIndependentOfContext("*(x + y).call();"); 5620 verifyIndependentOfContext("&(x + y)->call();"); 5621 verifyFormat("void f() { &(*I).first; }"); 5622 5623 verifyIndependentOfContext("f(b * /* confusing comment */ ++c);"); 5624 verifyFormat( 5625 "int *MyValues = {\n" 5626 " *A, // Operator detection might be confused by the '{'\n" 5627 " *BB // Operator detection might be confused by previous comment\n" 5628 "};"); 5629 5630 verifyIndependentOfContext("if (int *a = &b)"); 5631 verifyIndependentOfContext("if (int &a = *b)"); 5632 verifyIndependentOfContext("if (a & b[i])"); 5633 verifyIndependentOfContext("if (a::b::c::d & b[i])"); 5634 verifyIndependentOfContext("if (*b[i])"); 5635 verifyIndependentOfContext("if (int *a = (&b))"); 5636 verifyIndependentOfContext("while (int *a = &b)"); 5637 verifyIndependentOfContext("size = sizeof *a;"); 5638 verifyIndependentOfContext("if (a && (b = c))"); 5639 verifyFormat("void f() {\n" 5640 " for (const int &v : Values) {\n" 5641 " }\n" 5642 "}"); 5643 verifyFormat("for (int i = a * a; i < 10; ++i) {\n}"); 5644 verifyFormat("for (int i = 0; i < a * a; ++i) {\n}"); 5645 verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}"); 5646 5647 verifyFormat("#define A (!a * b)"); 5648 verifyFormat("#define MACRO \\\n" 5649 " int *i = a * b; \\\n" 5650 " void f(a *b);", 5651 getLLVMStyleWithColumns(19)); 5652 5653 verifyIndependentOfContext("A = new SomeType *[Length];"); 5654 verifyIndependentOfContext("A = new SomeType *[Length]();"); 5655 verifyIndependentOfContext("T **t = new T *;"); 5656 verifyIndependentOfContext("T **t = new T *();"); 5657 verifyGoogleFormat("A = new SomeType*[Length]();"); 5658 verifyGoogleFormat("A = new SomeType*[Length];"); 5659 verifyGoogleFormat("T** t = new T*;"); 5660 verifyGoogleFormat("T** t = new T*();"); 5661 5662 FormatStyle PointerLeft = getLLVMStyle(); 5663 PointerLeft.PointerAlignment = FormatStyle::PAS_Left; 5664 verifyFormat("delete *x;", PointerLeft); 5665 verifyFormat("STATIC_ASSERT((a & b) == 0);"); 5666 verifyFormat("STATIC_ASSERT(0 == (a & b));"); 5667 verifyFormat("template <bool a, bool b> " 5668 "typename t::if<x && y>::type f() {}"); 5669 verifyFormat("template <int *y> f() {}"); 5670 verifyFormat("vector<int *> v;"); 5671 verifyFormat("vector<int *const> v;"); 5672 verifyFormat("vector<int *const **const *> v;"); 5673 verifyFormat("vector<int *volatile> v;"); 5674 verifyFormat("vector<a * b> v;"); 5675 verifyFormat("foo<b && false>();"); 5676 verifyFormat("foo<b & 1>();"); 5677 verifyFormat("decltype(*::std::declval<const T &>()) void F();"); 5678 verifyFormat( 5679 "template <class T, class = typename std::enable_if<\n" 5680 " std::is_integral<T>::value &&\n" 5681 " (sizeof(T) > 1 || sizeof(T) < 8)>::type>\n" 5682 "void F();", 5683 getLLVMStyleWithColumns(76)); 5684 verifyFormat( 5685 "template <class T,\n" 5686 " class = typename ::std::enable_if<\n" 5687 " ::std::is_array<T>{} && ::std::is_array<T>{}>::type>\n" 5688 "void F();", 5689 getGoogleStyleWithColumns(68)); 5690 5691 verifyIndependentOfContext("MACRO(int *i);"); 5692 verifyIndependentOfContext("MACRO(auto *a);"); 5693 verifyIndependentOfContext("MACRO(const A *a);"); 5694 verifyIndependentOfContext("MACRO('0' <= c && c <= '9');"); 5695 // FIXME: Is there a way to make this work? 5696 // verifyIndependentOfContext("MACRO(A *a);"); 5697 5698 verifyFormat("DatumHandle const *operator->() const { return input_; }"); 5699 verifyFormat("return options != nullptr && operator==(*options);"); 5700 5701 EXPECT_EQ("#define OP(x) \\\n" 5702 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5703 " return s << a.DebugString(); \\\n" 5704 " }", 5705 format("#define OP(x) \\\n" 5706 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5707 " return s << a.DebugString(); \\\n" 5708 " }", 5709 getLLVMStyleWithColumns(50))); 5710 5711 // FIXME: We cannot handle this case yet; we might be able to figure out that 5712 // foo<x> d > v; doesn't make sense. 5713 verifyFormat("foo<a<b && c> d> v;"); 5714 5715 FormatStyle PointerMiddle = getLLVMStyle(); 5716 PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle; 5717 verifyFormat("delete *x;", PointerMiddle); 5718 verifyFormat("int * x;", PointerMiddle); 5719 verifyFormat("template <int * y> f() {}", PointerMiddle); 5720 verifyFormat("int * f(int * a) {}", PointerMiddle); 5721 verifyFormat("int main(int argc, char ** argv) {}", PointerMiddle); 5722 verifyFormat("Test::Test(int b) : a(b * b) {}", PointerMiddle); 5723 verifyFormat("A<int *> a;", PointerMiddle); 5724 verifyFormat("A<int **> a;", PointerMiddle); 5725 verifyFormat("A<int *, int *> a;", PointerMiddle); 5726 verifyFormat("A<int * []> a;", PointerMiddle); 5727 verifyFormat("A = new SomeType *[Length]();", PointerMiddle); 5728 verifyFormat("A = new SomeType *[Length];", PointerMiddle); 5729 verifyFormat("T ** t = new T *;", PointerMiddle); 5730 5731 // Member function reference qualifiers aren't binary operators. 5732 verifyFormat("string // break\n" 5733 "operator()() & {}"); 5734 verifyFormat("string // break\n" 5735 "operator()() && {}"); 5736 verifyGoogleFormat("template <typename T>\n" 5737 "auto x() & -> int {}"); 5738 } 5739 5740 TEST_F(FormatTest, UnderstandsAttributes) { 5741 verifyFormat("SomeType s __attribute__((unused)) (InitValue);"); 5742 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n" 5743 "aaaaaaaaaaaaaaaaaaaaaaa(int i);"); 5744 FormatStyle AfterType = getLLVMStyle(); 5745 AfterType.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions; 5746 verifyFormat("__attribute__((nodebug)) void\n" 5747 "foo() {}\n", 5748 AfterType); 5749 } 5750 5751 TEST_F(FormatTest, UnderstandsEllipsis) { 5752 verifyFormat("int printf(const char *fmt, ...);"); 5753 verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }"); 5754 verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}"); 5755 5756 FormatStyle PointersLeft = getLLVMStyle(); 5757 PointersLeft.PointerAlignment = FormatStyle::PAS_Left; 5758 verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft); 5759 } 5760 5761 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) { 5762 EXPECT_EQ("int *a;\n" 5763 "int *a;\n" 5764 "int *a;", 5765 format("int *a;\n" 5766 "int* a;\n" 5767 "int *a;", 5768 getGoogleStyle())); 5769 EXPECT_EQ("int* a;\n" 5770 "int* a;\n" 5771 "int* a;", 5772 format("int* a;\n" 5773 "int* a;\n" 5774 "int *a;", 5775 getGoogleStyle())); 5776 EXPECT_EQ("int *a;\n" 5777 "int *a;\n" 5778 "int *a;", 5779 format("int *a;\n" 5780 "int * a;\n" 5781 "int * a;", 5782 getGoogleStyle())); 5783 EXPECT_EQ("auto x = [] {\n" 5784 " int *a;\n" 5785 " int *a;\n" 5786 " int *a;\n" 5787 "};", 5788 format("auto x=[]{int *a;\n" 5789 "int * a;\n" 5790 "int * a;};", 5791 getGoogleStyle())); 5792 } 5793 5794 TEST_F(FormatTest, UnderstandsRvalueReferences) { 5795 verifyFormat("int f(int &&a) {}"); 5796 verifyFormat("int f(int a, char &&b) {}"); 5797 verifyFormat("void f() { int &&a = b; }"); 5798 verifyGoogleFormat("int f(int a, char&& b) {}"); 5799 verifyGoogleFormat("void f() { int&& a = b; }"); 5800 5801 verifyIndependentOfContext("A<int &&> a;"); 5802 verifyIndependentOfContext("A<int &&, int &&> a;"); 5803 verifyGoogleFormat("A<int&&> a;"); 5804 verifyGoogleFormat("A<int&&, int&&> a;"); 5805 5806 // Not rvalue references: 5807 verifyFormat("template <bool B, bool C> class A {\n" 5808 " static_assert(B && C, \"Something is wrong\");\n" 5809 "};"); 5810 verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))"); 5811 verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))"); 5812 verifyFormat("#define A(a, b) (a && b)"); 5813 } 5814 5815 TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) { 5816 verifyFormat("void f() {\n" 5817 " x[aaaaaaaaa -\n" 5818 " b] = 23;\n" 5819 "}", 5820 getLLVMStyleWithColumns(15)); 5821 } 5822 5823 TEST_F(FormatTest, FormatsCasts) { 5824 verifyFormat("Type *A = static_cast<Type *>(P);"); 5825 verifyFormat("Type *A = (Type *)P;"); 5826 verifyFormat("Type *A = (vector<Type *, int *>)P;"); 5827 verifyFormat("int a = (int)(2.0f);"); 5828 verifyFormat("int a = (int)2.0f;"); 5829 verifyFormat("x[(int32)y];"); 5830 verifyFormat("x = (int32)y;"); 5831 verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)"); 5832 verifyFormat("int a = (int)*b;"); 5833 verifyFormat("int a = (int)2.0f;"); 5834 verifyFormat("int a = (int)~0;"); 5835 verifyFormat("int a = (int)++a;"); 5836 verifyFormat("int a = (int)sizeof(int);"); 5837 verifyFormat("int a = (int)+2;"); 5838 verifyFormat("my_int a = (my_int)2.0f;"); 5839 verifyFormat("my_int a = (my_int)sizeof(int);"); 5840 verifyFormat("return (my_int)aaa;"); 5841 verifyFormat("#define x ((int)-1)"); 5842 verifyFormat("#define LENGTH(x, y) (x) - (y) + 1"); 5843 verifyFormat("#define p(q) ((int *)&q)"); 5844 verifyFormat("fn(a)(b) + 1;"); 5845 5846 verifyFormat("void f() { my_int a = (my_int)*b; }"); 5847 verifyFormat("void f() { return P ? (my_int)*P : (my_int)0; }"); 5848 verifyFormat("my_int a = (my_int)~0;"); 5849 verifyFormat("my_int a = (my_int)++a;"); 5850 verifyFormat("my_int a = (my_int)-2;"); 5851 verifyFormat("my_int a = (my_int)1;"); 5852 verifyFormat("my_int a = (my_int *)1;"); 5853 verifyFormat("my_int a = (const my_int)-1;"); 5854 verifyFormat("my_int a = (const my_int *)-1;"); 5855 verifyFormat("my_int a = (my_int)(my_int)-1;"); 5856 verifyFormat("my_int a = (ns::my_int)-2;"); 5857 verifyFormat("case (my_int)ONE:"); 5858 5859 // FIXME: single value wrapped with paren will be treated as cast. 5860 verifyFormat("void f(int i = (kValue)*kMask) {}"); 5861 5862 verifyFormat("{ (void)F; }"); 5863 5864 // Don't break after a cast's 5865 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5866 " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n" 5867 " bbbbbbbbbbbbbbbbbbbbbb);"); 5868 5869 // These are not casts. 5870 verifyFormat("void f(int *) {}"); 5871 verifyFormat("f(foo)->b;"); 5872 verifyFormat("f(foo).b;"); 5873 verifyFormat("f(foo)(b);"); 5874 verifyFormat("f(foo)[b];"); 5875 verifyFormat("[](foo) { return 4; }(bar);"); 5876 verifyFormat("(*funptr)(foo)[4];"); 5877 verifyFormat("funptrs[4](foo)[4];"); 5878 verifyFormat("void f(int *);"); 5879 verifyFormat("void f(int *) = 0;"); 5880 verifyFormat("void f(SmallVector<int>) {}"); 5881 verifyFormat("void f(SmallVector<int>);"); 5882 verifyFormat("void f(SmallVector<int>) = 0;"); 5883 verifyFormat("void f(int i = (kA * kB) & kMask) {}"); 5884 verifyFormat("int a = sizeof(int) * b;"); 5885 verifyFormat("int a = alignof(int) * b;", getGoogleStyle()); 5886 verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;"); 5887 verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");"); 5888 verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;"); 5889 5890 // These are not casts, but at some point were confused with casts. 5891 verifyFormat("virtual void foo(int *) override;"); 5892 verifyFormat("virtual void foo(char &) const;"); 5893 verifyFormat("virtual void foo(int *a, char *) const;"); 5894 verifyFormat("int a = sizeof(int *) + b;"); 5895 verifyFormat("int a = alignof(int *) + b;", getGoogleStyle()); 5896 verifyFormat("bool b = f(g<int>) && c;"); 5897 verifyFormat("typedef void (*f)(int i) func;"); 5898 5899 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n" 5900 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 5901 // FIXME: The indentation here is not ideal. 5902 verifyFormat( 5903 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5904 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n" 5905 " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];"); 5906 } 5907 5908 TEST_F(FormatTest, FormatsFunctionTypes) { 5909 verifyFormat("A<bool()> a;"); 5910 verifyFormat("A<SomeType()> a;"); 5911 verifyFormat("A<void (*)(int, std::string)> a;"); 5912 verifyFormat("A<void *(int)>;"); 5913 verifyFormat("void *(*a)(int *, SomeType *);"); 5914 verifyFormat("int (*func)(void *);"); 5915 verifyFormat("void f() { int (*func)(void *); }"); 5916 verifyFormat("template <class CallbackClass>\n" 5917 "using MyCallback = void (CallbackClass::*)(SomeObject *Data);"); 5918 5919 verifyGoogleFormat("A<void*(int*, SomeType*)>;"); 5920 verifyGoogleFormat("void* (*a)(int);"); 5921 verifyGoogleFormat( 5922 "template <class CallbackClass>\n" 5923 "using MyCallback = void (CallbackClass::*)(SomeObject* Data);"); 5924 5925 // Other constructs can look somewhat like function types: 5926 verifyFormat("A<sizeof(*x)> a;"); 5927 verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)"); 5928 verifyFormat("some_var = function(*some_pointer_var)[0];"); 5929 verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }"); 5930 } 5931 5932 TEST_F(FormatTest, FormatsPointersToArrayTypes) { 5933 verifyFormat("A (*foo_)[6];"); 5934 verifyFormat("vector<int> (*foo_)[6];"); 5935 } 5936 5937 TEST_F(FormatTest, BreaksLongVariableDeclarations) { 5938 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5939 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5940 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n" 5941 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5942 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5943 " *LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5944 5945 // Different ways of ()-initializiation. 5946 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5947 " LoooooooooooooooooooooooooooooooooooooooongVariable(1);"); 5948 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5949 " LoooooooooooooooooooooooooooooooooooooooongVariable(a);"); 5950 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5951 " LoooooooooooooooooooooooooooooooooooooooongVariable({});"); 5952 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5953 " LoooooooooooooooooooooooooooooooooooooongVariable([A a]);"); 5954 } 5955 5956 TEST_F(FormatTest, BreaksLongDeclarations) { 5957 verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n" 5958 " AnotherNameForTheLongType;"); 5959 verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n" 5960 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5961 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5962 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5963 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType *\n" 5964 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5965 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5966 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5967 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType MACRO\n" 5968 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5969 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5970 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5971 verifyFormat("decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5972 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5973 FormatStyle Indented = getLLVMStyle(); 5974 Indented.IndentWrappedFunctionNames = true; 5975 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5976 " LoooooooooooooooooooooooooooooooongFunctionDeclaration();", 5977 Indented); 5978 verifyFormat( 5979 "LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5980 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5981 Indented); 5982 verifyFormat( 5983 "LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5984 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5985 Indented); 5986 verifyFormat( 5987 "decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5988 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5989 Indented); 5990 5991 // FIXME: Without the comment, this breaks after "(". 5992 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n" 5993 " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();", 5994 getGoogleStyle()); 5995 5996 verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n" 5997 " int LoooooooooooooooooooongParam2) {}"); 5998 verifyFormat( 5999 "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n" 6000 " SourceLocation L, IdentifierIn *II,\n" 6001 " Type *T) {}"); 6002 verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n" 6003 "ReallyReaaallyLongFunctionName(\n" 6004 " const std::string &SomeParameter,\n" 6005 " const SomeType<string, SomeOtherTemplateParameter>\n" 6006 " &ReallyReallyLongParameterName,\n" 6007 " const SomeType<string, SomeOtherTemplateParameter>\n" 6008 " &AnotherLongParameterName) {}"); 6009 verifyFormat("template <typename A>\n" 6010 "SomeLoooooooooooooooooooooongType<\n" 6011 " typename some_namespace::SomeOtherType<A>::Type>\n" 6012 "Function() {}"); 6013 6014 verifyGoogleFormat( 6015 "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n" 6016 " aaaaaaaaaaaaaaaaaaaaaaa;"); 6017 verifyGoogleFormat( 6018 "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n" 6019 " SourceLocation L) {}"); 6020 verifyGoogleFormat( 6021 "some_namespace::LongReturnType\n" 6022 "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n" 6023 " int first_long_parameter, int second_parameter) {}"); 6024 6025 verifyGoogleFormat("template <typename T>\n" 6026 "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n" 6027 "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}"); 6028 verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6029 " int aaaaaaaaaaaaaaaaaaaaaaa);"); 6030 6031 verifyFormat("typedef size_t (*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 6032 " const aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6033 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6034 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 6035 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 6036 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 6037 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 6038 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 6039 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>>\n" 6040 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6041 } 6042 6043 TEST_F(FormatTest, FormatsArrays) { 6044 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 6045 " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;"); 6046 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6047 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 6048 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6049 " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;"); 6050 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6051 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 6052 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 6053 verifyFormat( 6054 "llvm::outs() << \"aaaaaaaaaaaa: \"\n" 6055 " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 6056 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 6057 6058 verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n" 6059 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];"); 6060 verifyFormat( 6061 "aaaaaaaaaaa aaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaa->aaaaaaaaa[0]\n" 6062 " .aaaaaaa[0]\n" 6063 " .aaaaaaaaaaaaaaaaaaaaaa();"); 6064 6065 verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10)); 6066 } 6067 6068 TEST_F(FormatTest, LineStartsWithSpecialCharacter) { 6069 verifyFormat("(a)->b();"); 6070 verifyFormat("--a;"); 6071 } 6072 6073 TEST_F(FormatTest, HandlesIncludeDirectives) { 6074 verifyFormat("#include <string>\n" 6075 "#include <a/b/c.h>\n" 6076 "#include \"a/b/string\"\n" 6077 "#include \"string.h\"\n" 6078 "#include \"string.h\"\n" 6079 "#include <a-a>\n" 6080 "#include < path with space >\n" 6081 "#include_next <test.h>" 6082 "#include \"abc.h\" // this is included for ABC\n" 6083 "#include \"some long include\" // with a comment\n" 6084 "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"", 6085 getLLVMStyleWithColumns(35)); 6086 EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\"")); 6087 EXPECT_EQ("#include <a>", format("#include<a>")); 6088 6089 verifyFormat("#import <string>"); 6090 verifyFormat("#import <a/b/c.h>"); 6091 verifyFormat("#import \"a/b/string\""); 6092 verifyFormat("#import \"string.h\""); 6093 verifyFormat("#import \"string.h\""); 6094 verifyFormat("#if __has_include(<strstream>)\n" 6095 "#include <strstream>\n" 6096 "#endif"); 6097 6098 verifyFormat("#define MY_IMPORT <a/b>"); 6099 6100 // Protocol buffer definition or missing "#". 6101 verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";", 6102 getLLVMStyleWithColumns(30)); 6103 6104 FormatStyle Style = getLLVMStyle(); 6105 Style.AlwaysBreakBeforeMultilineStrings = true; 6106 Style.ColumnLimit = 0; 6107 verifyFormat("#import \"abc.h\"", Style); 6108 6109 // But 'import' might also be a regular C++ namespace. 6110 verifyFormat("import::SomeFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6111 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6112 } 6113 6114 //===----------------------------------------------------------------------===// 6115 // Error recovery tests. 6116 //===----------------------------------------------------------------------===// 6117 6118 TEST_F(FormatTest, IncompleteParameterLists) { 6119 FormatStyle NoBinPacking = getLLVMStyle(); 6120 NoBinPacking.BinPackParameters = false; 6121 verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n" 6122 " double *min_x,\n" 6123 " double *max_x,\n" 6124 " double *min_y,\n" 6125 " double *max_y,\n" 6126 " double *min_z,\n" 6127 " double *max_z, ) {}", 6128 NoBinPacking); 6129 } 6130 6131 TEST_F(FormatTest, IncorrectCodeTrailingStuff) { 6132 verifyFormat("void f() { return; }\n42"); 6133 verifyFormat("void f() {\n" 6134 " if (0)\n" 6135 " return;\n" 6136 "}\n" 6137 "42"); 6138 verifyFormat("void f() { return }\n42"); 6139 verifyFormat("void f() {\n" 6140 " if (0)\n" 6141 " return\n" 6142 "}\n" 6143 "42"); 6144 } 6145 6146 TEST_F(FormatTest, IncorrectCodeMissingSemicolon) { 6147 EXPECT_EQ("void f() { return }", format("void f ( ) { return }")); 6148 EXPECT_EQ("void f() {\n" 6149 " if (a)\n" 6150 " return\n" 6151 "}", 6152 format("void f ( ) { if ( a ) return }")); 6153 EXPECT_EQ("namespace N {\n" 6154 "void f()\n" 6155 "}", 6156 format("namespace N { void f() }")); 6157 EXPECT_EQ("namespace N {\n" 6158 "void f() {}\n" 6159 "void g()\n" 6160 "}", 6161 format("namespace N { void f( ) { } void g( ) }")); 6162 } 6163 6164 TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) { 6165 verifyFormat("int aaaaaaaa =\n" 6166 " // Overlylongcomment\n" 6167 " b;", 6168 getLLVMStyleWithColumns(20)); 6169 verifyFormat("function(\n" 6170 " ShortArgument,\n" 6171 " LoooooooooooongArgument);\n", 6172 getLLVMStyleWithColumns(20)); 6173 } 6174 6175 TEST_F(FormatTest, IncorrectAccessSpecifier) { 6176 verifyFormat("public:"); 6177 verifyFormat("class A {\n" 6178 "public\n" 6179 " void f() {}\n" 6180 "};"); 6181 verifyFormat("public\n" 6182 "int qwerty;"); 6183 verifyFormat("public\n" 6184 "B {}"); 6185 verifyFormat("public\n" 6186 "{}"); 6187 verifyFormat("public\n" 6188 "B { int x; }"); 6189 } 6190 6191 TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) { 6192 verifyFormat("{"); 6193 verifyFormat("#})"); 6194 verifyNoCrash("(/**/[:!] ?[)."); 6195 } 6196 6197 TEST_F(FormatTest, IncorrectCodeDoNoWhile) { 6198 verifyFormat("do {\n}"); 6199 verifyFormat("do {\n}\n" 6200 "f();"); 6201 verifyFormat("do {\n}\n" 6202 "wheeee(fun);"); 6203 verifyFormat("do {\n" 6204 " f();\n" 6205 "}"); 6206 } 6207 6208 TEST_F(FormatTest, IncorrectCodeMissingParens) { 6209 verifyFormat("if {\n foo;\n foo();\n}"); 6210 verifyFormat("switch {\n foo;\n foo();\n}"); 6211 verifyIncompleteFormat("for {\n foo;\n foo();\n}"); 6212 verifyFormat("while {\n foo;\n foo();\n}"); 6213 verifyFormat("do {\n foo;\n foo();\n} while;"); 6214 } 6215 6216 TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) { 6217 verifyIncompleteFormat("namespace {\n" 6218 "class Foo { Foo (\n" 6219 "};\n" 6220 "} // comment"); 6221 } 6222 6223 TEST_F(FormatTest, IncorrectCodeErrorDetection) { 6224 EXPECT_EQ("{\n {}\n", format("{\n{\n}\n")); 6225 EXPECT_EQ("{\n {}\n", format("{\n {\n}\n")); 6226 EXPECT_EQ("{\n {}\n", format("{\n {\n }\n")); 6227 EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n")); 6228 6229 EXPECT_EQ("{\n" 6230 " {\n" 6231 " breakme(\n" 6232 " qwe);\n" 6233 " }\n", 6234 format("{\n" 6235 " {\n" 6236 " breakme(qwe);\n" 6237 "}\n", 6238 getLLVMStyleWithColumns(10))); 6239 } 6240 6241 TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) { 6242 verifyFormat("int x = {\n" 6243 " avariable,\n" 6244 " b(alongervariable)};", 6245 getLLVMStyleWithColumns(25)); 6246 } 6247 6248 TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) { 6249 verifyFormat("return (a)(b){1, 2, 3};"); 6250 } 6251 6252 TEST_F(FormatTest, LayoutCxx11BraceInitializers) { 6253 verifyFormat("vector<int> x{1, 2, 3, 4};"); 6254 verifyFormat("vector<int> x{\n" 6255 " 1, 2, 3, 4,\n" 6256 "};"); 6257 verifyFormat("vector<T> x{{}, {}, {}, {}};"); 6258 verifyFormat("f({1, 2});"); 6259 verifyFormat("auto v = Foo{-1};"); 6260 verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});"); 6261 verifyFormat("Class::Class : member{1, 2, 3} {}"); 6262 verifyFormat("new vector<int>{1, 2, 3};"); 6263 verifyFormat("new int[3]{1, 2, 3};"); 6264 verifyFormat("new int{1};"); 6265 verifyFormat("return {arg1, arg2};"); 6266 verifyFormat("return {arg1, SomeType{parameter}};"); 6267 verifyFormat("int count = set<int>{f(), g(), h()}.size();"); 6268 verifyFormat("new T{arg1, arg2};"); 6269 verifyFormat("f(MyMap[{composite, key}]);"); 6270 verifyFormat("class Class {\n" 6271 " T member = {arg1, arg2};\n" 6272 "};"); 6273 verifyFormat("vector<int> foo = {::SomeGlobalFunction()};"); 6274 verifyFormat("static_assert(std::is_integral<int>{} + 0, \"\");"); 6275 verifyFormat("int a = std::is_integral<int>{} + 0;"); 6276 6277 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6278 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6279 verifyFormat("auto i = decltype(x){};"); 6280 verifyFormat("std::vector<int> v = {1, 0 /* comment */};"); 6281 verifyFormat("Node n{1, Node{1000}, //\n" 6282 " 2};"); 6283 verifyFormat("Aaaa aaaaaaa{\n" 6284 " {\n" 6285 " aaaa,\n" 6286 " },\n" 6287 "};"); 6288 verifyFormat("class C : public D {\n" 6289 " SomeClass SC{2};\n" 6290 "};"); 6291 verifyFormat("class C : public A {\n" 6292 " class D : public B {\n" 6293 " void f() { int i{2}; }\n" 6294 " };\n" 6295 "};"); 6296 verifyFormat("#define A {a, a},"); 6297 6298 // In combination with BinPackArguments = false. 6299 FormatStyle NoBinPacking = getLLVMStyle(); 6300 NoBinPacking.BinPackArguments = false; 6301 verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n" 6302 " bbbbb,\n" 6303 " ccccc,\n" 6304 " ddddd,\n" 6305 " eeeee,\n" 6306 " ffffff,\n" 6307 " ggggg,\n" 6308 " hhhhhh,\n" 6309 " iiiiii,\n" 6310 " jjjjjj,\n" 6311 " kkkkkk};", 6312 NoBinPacking); 6313 verifyFormat("const Aaaaaa aaaaa = {\n" 6314 " aaaaa,\n" 6315 " bbbbb,\n" 6316 " ccccc,\n" 6317 " ddddd,\n" 6318 " eeeee,\n" 6319 " ffffff,\n" 6320 " ggggg,\n" 6321 " hhhhhh,\n" 6322 " iiiiii,\n" 6323 " jjjjjj,\n" 6324 " kkkkkk,\n" 6325 "};", 6326 NoBinPacking); 6327 verifyFormat( 6328 "const Aaaaaa aaaaa = {\n" 6329 " aaaaa, bbbbb, ccccc, ddddd, eeeee, ffffff, ggggg, hhhhhh,\n" 6330 " iiiiii, jjjjjj, kkkkkk, aaaaa, bbbbb, ccccc, ddddd, eeeee,\n" 6331 " ffffff, ggggg, hhhhhh, iiiiii, jjjjjj, kkkkkk,\n" 6332 "};", 6333 NoBinPacking); 6334 6335 // FIXME: The alignment of these trailing comments might be bad. Then again, 6336 // this might be utterly useless in real code. 6337 verifyFormat("Constructor::Constructor()\n" 6338 " : some_value{ //\n" 6339 " aaaaaaa, //\n" 6340 " bbbbbbb} {}"); 6341 6342 // In braced lists, the first comment is always assumed to belong to the 6343 // first element. Thus, it can be moved to the next or previous line as 6344 // appropriate. 6345 EXPECT_EQ("function({// First element:\n" 6346 " 1,\n" 6347 " // Second element:\n" 6348 " 2});", 6349 format("function({\n" 6350 " // First element:\n" 6351 " 1,\n" 6352 " // Second element:\n" 6353 " 2});")); 6354 EXPECT_EQ("std::vector<int> MyNumbers{\n" 6355 " // First element:\n" 6356 " 1,\n" 6357 " // Second element:\n" 6358 " 2};", 6359 format("std::vector<int> MyNumbers{// First element:\n" 6360 " 1,\n" 6361 " // Second element:\n" 6362 " 2};", 6363 getLLVMStyleWithColumns(30))); 6364 // A trailing comma should still lead to an enforced line break. 6365 EXPECT_EQ("vector<int> SomeVector = {\n" 6366 " // aaa\n" 6367 " 1, 2,\n" 6368 "};", 6369 format("vector<int> SomeVector = { // aaa\n" 6370 " 1, 2, };")); 6371 6372 FormatStyle ExtraSpaces = getLLVMStyle(); 6373 ExtraSpaces.Cpp11BracedListStyle = false; 6374 ExtraSpaces.ColumnLimit = 75; 6375 verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces); 6376 verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces); 6377 verifyFormat("f({ 1, 2 });", ExtraSpaces); 6378 verifyFormat("auto v = Foo{ 1 };", ExtraSpaces); 6379 verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces); 6380 verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces); 6381 verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces); 6382 verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces); 6383 verifyFormat("return { arg1, arg2 };", ExtraSpaces); 6384 verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces); 6385 verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces); 6386 verifyFormat("new T{ arg1, arg2 };", ExtraSpaces); 6387 verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces); 6388 verifyFormat("class Class {\n" 6389 " T member = { arg1, arg2 };\n" 6390 "};", 6391 ExtraSpaces); 6392 verifyFormat( 6393 "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6394 " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n" 6395 " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 6396 " bbbbbbbbbbbbbbbbbbbb, bbbbb };", 6397 ExtraSpaces); 6398 verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces); 6399 verifyFormat("DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });", 6400 ExtraSpaces); 6401 verifyFormat( 6402 "someFunction(OtherParam,\n" 6403 " BracedList{ // comment 1 (Forcing interesting break)\n" 6404 " param1, param2,\n" 6405 " // comment 2\n" 6406 " param3, param4 });", 6407 ExtraSpaces); 6408 verifyFormat( 6409 "std::this_thread::sleep_for(\n" 6410 " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);", 6411 ExtraSpaces); 6412 verifyFormat("std::vector<MyValues> aaaaaaaaaaaaaaaaaaa{\n" 6413 " aaaaaaa,\n" 6414 " aaaaaaaaaa,\n" 6415 " aaaaa,\n" 6416 " aaaaaaaaaaaaaaa,\n" 6417 " aaa,\n" 6418 " aaaaaaaaaa,\n" 6419 " a,\n" 6420 " aaaaaaaaaaaaaaaaaaaaa,\n" 6421 " aaaaaaaaaaaa,\n" 6422 " aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa,\n" 6423 " aaaaaaa,\n" 6424 " a};"); 6425 verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces); 6426 } 6427 6428 TEST_F(FormatTest, FormatsBracedListsInColumnLayout) { 6429 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6430 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6431 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6432 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6433 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6434 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6435 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777, //\n" 6436 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6437 " 1, 22, 333, 4444, 55555, //\n" 6438 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6439 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6440 verifyFormat( 6441 "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6442 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6443 " 1, 22, 333, 4444, 55555, 666666, // comment\n" 6444 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6445 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6446 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6447 " 7777777};"); 6448 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6449 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6450 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6451 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6452 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6453 " // Separating comment.\n" 6454 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6455 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6456 " // Leading comment\n" 6457 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6458 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6459 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6460 " 1, 1, 1, 1};", 6461 getLLVMStyleWithColumns(39)); 6462 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6463 " 1, 1, 1, 1};", 6464 getLLVMStyleWithColumns(38)); 6465 verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n" 6466 " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};", 6467 getLLVMStyleWithColumns(43)); 6468 verifyFormat( 6469 "static unsigned SomeValues[10][3] = {\n" 6470 " {1, 4, 0}, {4, 9, 0}, {4, 5, 9}, {8, 5, 4}, {1, 8, 4},\n" 6471 " {10, 1, 6}, {11, 0, 9}, {2, 11, 9}, {5, 2, 9}, {11, 2, 7}};"); 6472 verifyFormat("static auto fields = new vector<string>{\n" 6473 " \"aaaaaaaaaaaaa\",\n" 6474 " \"aaaaaaaaaaaaa\",\n" 6475 " \"aaaaaaaaaaaa\",\n" 6476 " \"aaaaaaaaaaaaaa\",\n" 6477 " \"aaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6478 " \"aaaaaaaaaaaa\",\n" 6479 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6480 "};"); 6481 verifyFormat("vector<int> x = {1, 2, 3, 4, aaaaaaaaaaaaaaaaa, 6};"); 6482 verifyFormat("vector<int> x = {1, aaaaaaaaaaaaaaaaaaaaaa,\n" 6483 " 2, bbbbbbbbbbbbbbbbbbbbbb,\n" 6484 " 3, cccccccccccccccccccccc};", 6485 getLLVMStyleWithColumns(60)); 6486 6487 // Trailing commas. 6488 verifyFormat("vector<int> x = {\n" 6489 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 6490 "};", 6491 getLLVMStyleWithColumns(39)); 6492 verifyFormat("vector<int> x = {\n" 6493 " 1, 1, 1, 1, 1, 1, 1, 1, //\n" 6494 "};", 6495 getLLVMStyleWithColumns(39)); 6496 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6497 " 1, 1, 1, 1,\n" 6498 " /**/ /**/};", 6499 getLLVMStyleWithColumns(39)); 6500 6501 // Trailing comment in the first line. 6502 verifyFormat("vector<int> iiiiiiiiiiiiiii = { //\n" 6503 " 1111111111, 2222222222, 33333333333, 4444444444, //\n" 6504 " 111111111, 222222222, 3333333333, 444444444, //\n" 6505 " 11111111, 22222222, 333333333, 44444444};"); 6506 // Trailing comment in the last line. 6507 verifyFormat("int aaaaa[] = {\n" 6508 " 1, 2, 3, // comment\n" 6509 " 4, 5, 6 // comment\n" 6510 "};"); 6511 6512 // With nested lists, we should either format one item per line or all nested 6513 // lists one on line. 6514 // FIXME: For some nested lists, we can do better. 6515 verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n" 6516 " {aaaaaaaaaaaaaaaaaaa},\n" 6517 " {aaaaaaaaaaaaaaaaaaaaa},\n" 6518 " {aaaaaaaaaaaaaaaaa}};", 6519 getLLVMStyleWithColumns(60)); 6520 verifyFormat( 6521 "SomeStruct my_struct_array = {\n" 6522 " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n" 6523 " aaaaaaaaaaaaa, aaaaaaa, aaa},\n" 6524 " {aaa, aaa},\n" 6525 " {aaa, aaa},\n" 6526 " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n" 6527 " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n" 6528 " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};"); 6529 6530 // No column layout should be used here. 6531 verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n" 6532 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};"); 6533 6534 verifyNoCrash("a<,"); 6535 6536 // No braced initializer here. 6537 verifyFormat("void f() {\n" 6538 " struct Dummy {};\n" 6539 " f(v);\n" 6540 "}"); 6541 } 6542 6543 TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) { 6544 FormatStyle DoNotMerge = getLLVMStyle(); 6545 DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 6546 6547 verifyFormat("void f() { return 42; }"); 6548 verifyFormat("void f() {\n" 6549 " return 42;\n" 6550 "}", 6551 DoNotMerge); 6552 verifyFormat("void f() {\n" 6553 " // Comment\n" 6554 "}"); 6555 verifyFormat("{\n" 6556 "#error {\n" 6557 " int a;\n" 6558 "}"); 6559 verifyFormat("{\n" 6560 " int a;\n" 6561 "#error {\n" 6562 "}"); 6563 verifyFormat("void f() {} // comment"); 6564 verifyFormat("void f() { int a; } // comment"); 6565 verifyFormat("void f() {\n" 6566 "} // comment", 6567 DoNotMerge); 6568 verifyFormat("void f() {\n" 6569 " int a;\n" 6570 "} // comment", 6571 DoNotMerge); 6572 verifyFormat("void f() {\n" 6573 "} // comment", 6574 getLLVMStyleWithColumns(15)); 6575 6576 verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23)); 6577 verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22)); 6578 6579 verifyFormat("void f() {}", getLLVMStyleWithColumns(11)); 6580 verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10)); 6581 verifyFormat("class C {\n" 6582 " C()\n" 6583 " : iiiiiiii(nullptr),\n" 6584 " kkkkkkk(nullptr),\n" 6585 " mmmmmmm(nullptr),\n" 6586 " nnnnnnn(nullptr) {}\n" 6587 "};", 6588 getGoogleStyle()); 6589 6590 FormatStyle NoColumnLimit = getLLVMStyle(); 6591 NoColumnLimit.ColumnLimit = 0; 6592 EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit)); 6593 EXPECT_EQ("class C {\n" 6594 " A() : b(0) {}\n" 6595 "};", 6596 format("class C{A():b(0){}};", NoColumnLimit)); 6597 EXPECT_EQ("A()\n" 6598 " : b(0) {\n" 6599 "}", 6600 format("A()\n:b(0)\n{\n}", NoColumnLimit)); 6601 6602 FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit; 6603 DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine = 6604 FormatStyle::SFS_None; 6605 EXPECT_EQ("A()\n" 6606 " : b(0) {\n" 6607 "}", 6608 format("A():b(0){}", DoNotMergeNoColumnLimit)); 6609 EXPECT_EQ("A()\n" 6610 " : b(0) {\n" 6611 "}", 6612 format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit)); 6613 6614 verifyFormat("#define A \\\n" 6615 " void f() { \\\n" 6616 " int i; \\\n" 6617 " }", 6618 getLLVMStyleWithColumns(20)); 6619 verifyFormat("#define A \\\n" 6620 " void f() { int i; }", 6621 getLLVMStyleWithColumns(21)); 6622 verifyFormat("#define A \\\n" 6623 " void f() { \\\n" 6624 " int i; \\\n" 6625 " } \\\n" 6626 " int j;", 6627 getLLVMStyleWithColumns(22)); 6628 verifyFormat("#define A \\\n" 6629 " void f() { int i; } \\\n" 6630 " int j;", 6631 getLLVMStyleWithColumns(23)); 6632 } 6633 6634 TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) { 6635 FormatStyle MergeInlineOnly = getLLVMStyle(); 6636 MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 6637 verifyFormat("class C {\n" 6638 " int f() { return 42; }\n" 6639 "};", 6640 MergeInlineOnly); 6641 verifyFormat("int f() {\n" 6642 " return 42;\n" 6643 "}", 6644 MergeInlineOnly); 6645 } 6646 6647 TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) { 6648 // Elaborate type variable declarations. 6649 verifyFormat("struct foo a = {bar};\nint n;"); 6650 verifyFormat("class foo a = {bar};\nint n;"); 6651 verifyFormat("union foo a = {bar};\nint n;"); 6652 6653 // Elaborate types inside function definitions. 6654 verifyFormat("struct foo f() {}\nint n;"); 6655 verifyFormat("class foo f() {}\nint n;"); 6656 verifyFormat("union foo f() {}\nint n;"); 6657 6658 // Templates. 6659 verifyFormat("template <class X> void f() {}\nint n;"); 6660 verifyFormat("template <struct X> void f() {}\nint n;"); 6661 verifyFormat("template <union X> void f() {}\nint n;"); 6662 6663 // Actual definitions... 6664 verifyFormat("struct {\n} n;"); 6665 verifyFormat( 6666 "template <template <class T, class Y>, class Z> class X {\n} n;"); 6667 verifyFormat("union Z {\n int n;\n} x;"); 6668 verifyFormat("class MACRO Z {\n} n;"); 6669 verifyFormat("class MACRO(X) Z {\n} n;"); 6670 verifyFormat("class __attribute__(X) Z {\n} n;"); 6671 verifyFormat("class __declspec(X) Z {\n} n;"); 6672 verifyFormat("class A##B##C {\n} n;"); 6673 verifyFormat("class alignas(16) Z {\n} n;"); 6674 verifyFormat("class MACRO(X) alignas(16) Z {\n} n;"); 6675 verifyFormat("class MACROA MACRO(X) Z {\n} n;"); 6676 6677 // Redefinition from nested context: 6678 verifyFormat("class A::B::C {\n} n;"); 6679 6680 // Template definitions. 6681 verifyFormat( 6682 "template <typename F>\n" 6683 "Matcher(const Matcher<F> &Other,\n" 6684 " typename enable_if_c<is_base_of<F, T>::value &&\n" 6685 " !is_same<F, T>::value>::type * = 0)\n" 6686 " : Implementation(new ImplicitCastMatcher<F>(Other)) {}"); 6687 6688 // FIXME: This is still incorrectly handled at the formatter side. 6689 verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};"); 6690 verifyFormat("int i = SomeFunction(a<b, a> b);"); 6691 6692 // FIXME: 6693 // This now gets parsed incorrectly as class definition. 6694 // verifyFormat("class A<int> f() {\n}\nint n;"); 6695 6696 // Elaborate types where incorrectly parsing the structural element would 6697 // break the indent. 6698 verifyFormat("if (true)\n" 6699 " class X x;\n" 6700 "else\n" 6701 " f();\n"); 6702 6703 // This is simply incomplete. Formatting is not important, but must not crash. 6704 verifyFormat("class A:"); 6705 } 6706 6707 TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) { 6708 EXPECT_EQ("#error Leave all white!!!!! space* alone!\n", 6709 format("#error Leave all white!!!!! space* alone!\n")); 6710 EXPECT_EQ( 6711 "#warning Leave all white!!!!! space* alone!\n", 6712 format("#warning Leave all white!!!!! space* alone!\n")); 6713 EXPECT_EQ("#error 1", format(" # error 1")); 6714 EXPECT_EQ("#warning 1", format(" # warning 1")); 6715 } 6716 6717 TEST_F(FormatTest, FormatHashIfExpressions) { 6718 verifyFormat("#if AAAA && BBBB"); 6719 verifyFormat("#if (AAAA && BBBB)"); 6720 verifyFormat("#elif (AAAA && BBBB)"); 6721 // FIXME: Come up with a better indentation for #elif. 6722 verifyFormat( 6723 "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n" 6724 " defined(BBBBBBBB)\n" 6725 "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n" 6726 " defined(BBBBBBBB)\n" 6727 "#endif", 6728 getLLVMStyleWithColumns(65)); 6729 } 6730 6731 TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) { 6732 FormatStyle AllowsMergedIf = getGoogleStyle(); 6733 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 6734 verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf); 6735 verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf); 6736 verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf); 6737 EXPECT_EQ("if (true) return 42;", 6738 format("if (true)\nreturn 42;", AllowsMergedIf)); 6739 FormatStyle ShortMergedIf = AllowsMergedIf; 6740 ShortMergedIf.ColumnLimit = 25; 6741 verifyFormat("#define A \\\n" 6742 " if (true) return 42;", 6743 ShortMergedIf); 6744 verifyFormat("#define A \\\n" 6745 " f(); \\\n" 6746 " if (true)\n" 6747 "#define B", 6748 ShortMergedIf); 6749 verifyFormat("#define A \\\n" 6750 " f(); \\\n" 6751 " if (true)\n" 6752 "g();", 6753 ShortMergedIf); 6754 verifyFormat("{\n" 6755 "#ifdef A\n" 6756 " // Comment\n" 6757 " if (true) continue;\n" 6758 "#endif\n" 6759 " // Comment\n" 6760 " if (true) continue;\n" 6761 "}", 6762 ShortMergedIf); 6763 ShortMergedIf.ColumnLimit = 29; 6764 verifyFormat("#define A \\\n" 6765 " if (aaaaaaaaaa) return 1; \\\n" 6766 " return 2;", 6767 ShortMergedIf); 6768 ShortMergedIf.ColumnLimit = 28; 6769 verifyFormat("#define A \\\n" 6770 " if (aaaaaaaaaa) \\\n" 6771 " return 1; \\\n" 6772 " return 2;", 6773 ShortMergedIf); 6774 } 6775 6776 TEST_F(FormatTest, BlockCommentsInControlLoops) { 6777 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6778 " f();\n" 6779 "}"); 6780 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6781 " f();\n" 6782 "} /* another comment */ else /* comment #3 */ {\n" 6783 " g();\n" 6784 "}"); 6785 verifyFormat("while (0) /* a comment in a strange place */ {\n" 6786 " f();\n" 6787 "}"); 6788 verifyFormat("for (;;) /* a comment in a strange place */ {\n" 6789 " f();\n" 6790 "}"); 6791 verifyFormat("do /* a comment in a strange place */ {\n" 6792 " f();\n" 6793 "} /* another comment */ while (0);"); 6794 } 6795 6796 TEST_F(FormatTest, BlockComments) { 6797 EXPECT_EQ("/* */ /* */ /* */\n/* */ /* */ /* */", 6798 format("/* *//* */ /* */\n/* *//* */ /* */")); 6799 EXPECT_EQ("/* */ a /* */ b;", format(" /* */ a/* */ b;")); 6800 EXPECT_EQ("#define A /*123*/ \\\n" 6801 " b\n" 6802 "/* */\n" 6803 "someCall(\n" 6804 " parameter);", 6805 format("#define A /*123*/ b\n" 6806 "/* */\n" 6807 "someCall(parameter);", 6808 getLLVMStyleWithColumns(15))); 6809 6810 EXPECT_EQ("#define A\n" 6811 "/* */ someCall(\n" 6812 " parameter);", 6813 format("#define A\n" 6814 "/* */someCall(parameter);", 6815 getLLVMStyleWithColumns(15))); 6816 EXPECT_EQ("/*\n**\n*/", format("/*\n**\n*/")); 6817 EXPECT_EQ("/*\n" 6818 "*\n" 6819 " * aaaaaa\n" 6820 " * aaaaaa\n" 6821 "*/", 6822 format("/*\n" 6823 "*\n" 6824 " * aaaaaa aaaaaa\n" 6825 "*/", 6826 getLLVMStyleWithColumns(10))); 6827 EXPECT_EQ("/*\n" 6828 "**\n" 6829 "* aaaaaa\n" 6830 "*aaaaaa\n" 6831 "*/", 6832 format("/*\n" 6833 "**\n" 6834 "* aaaaaa aaaaaa\n" 6835 "*/", 6836 getLLVMStyleWithColumns(10))); 6837 6838 FormatStyle NoBinPacking = getLLVMStyle(); 6839 NoBinPacking.BinPackParameters = false; 6840 EXPECT_EQ("someFunction(1, /* comment 1 */\n" 6841 " 2, /* comment 2 */\n" 6842 " 3, /* comment 3 */\n" 6843 " aaaa,\n" 6844 " bbbb);", 6845 format("someFunction (1, /* comment 1 */\n" 6846 " 2, /* comment 2 */ \n" 6847 " 3, /* comment 3 */\n" 6848 "aaaa, bbbb );", 6849 NoBinPacking)); 6850 verifyFormat( 6851 "bool aaaaaaaaaaaaa = /* comment: */ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6852 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 6853 EXPECT_EQ( 6854 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6855 " aaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6856 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;", 6857 format( 6858 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6859 " aaaaaaaaaaaaaaaaaaaaaaaaaaa||aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6860 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;")); 6861 EXPECT_EQ( 6862 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6863 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6864 "int cccccccccccccccccccccccccccccc; /* comment */\n", 6865 format("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6866 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6867 "int cccccccccccccccccccccccccccccc; /* comment */\n")); 6868 6869 verifyFormat("void f(int * /* unused */) {}"); 6870 6871 EXPECT_EQ("/*\n" 6872 " **\n" 6873 " */", 6874 format("/*\n" 6875 " **\n" 6876 " */")); 6877 EXPECT_EQ("/*\n" 6878 " *q\n" 6879 " */", 6880 format("/*\n" 6881 " *q\n" 6882 " */")); 6883 EXPECT_EQ("/*\n" 6884 " * q\n" 6885 " */", 6886 format("/*\n" 6887 " * q\n" 6888 " */")); 6889 EXPECT_EQ("/*\n" 6890 " **/", 6891 format("/*\n" 6892 " **/")); 6893 EXPECT_EQ("/*\n" 6894 " ***/", 6895 format("/*\n" 6896 " ***/")); 6897 } 6898 6899 TEST_F(FormatTest, BlockCommentsInMacros) { 6900 EXPECT_EQ("#define A \\\n" 6901 " { \\\n" 6902 " /* one line */ \\\n" 6903 " someCall();", 6904 format("#define A { \\\n" 6905 " /* one line */ \\\n" 6906 " someCall();", 6907 getLLVMStyleWithColumns(20))); 6908 EXPECT_EQ("#define A \\\n" 6909 " { \\\n" 6910 " /* previous */ \\\n" 6911 " /* one line */ \\\n" 6912 " someCall();", 6913 format("#define A { \\\n" 6914 " /* previous */ \\\n" 6915 " /* one line */ \\\n" 6916 " someCall();", 6917 getLLVMStyleWithColumns(20))); 6918 } 6919 6920 TEST_F(FormatTest, BlockCommentsAtEndOfLine) { 6921 EXPECT_EQ("a = {\n" 6922 " 1111 /* */\n" 6923 "};", 6924 format("a = {1111 /* */\n" 6925 "};", 6926 getLLVMStyleWithColumns(15))); 6927 EXPECT_EQ("a = {\n" 6928 " 1111 /* */\n" 6929 "};", 6930 format("a = {1111 /* */\n" 6931 "};", 6932 getLLVMStyleWithColumns(15))); 6933 6934 // FIXME: The formatting is still wrong here. 6935 EXPECT_EQ("a = {\n" 6936 " 1111 /* a\n" 6937 " */\n" 6938 "};", 6939 format("a = {1111 /* a */\n" 6940 "};", 6941 getLLVMStyleWithColumns(15))); 6942 } 6943 6944 TEST_F(FormatTest, IndentLineCommentsInStartOfBlockAtEndOfFile) { 6945 // FIXME: This is not what we want... 6946 verifyFormat("{\n" 6947 "// a" 6948 "// b"); 6949 } 6950 6951 TEST_F(FormatTest, FormatStarDependingOnContext) { 6952 verifyFormat("void f(int *a);"); 6953 verifyFormat("void f() { f(fint * b); }"); 6954 verifyFormat("class A {\n void f(int *a);\n};"); 6955 verifyFormat("class A {\n int *a;\n};"); 6956 verifyFormat("namespace a {\n" 6957 "namespace b {\n" 6958 "class A {\n" 6959 " void f() {}\n" 6960 " int *a;\n" 6961 "};\n" 6962 "}\n" 6963 "}"); 6964 } 6965 6966 TEST_F(FormatTest, SpecialTokensAtEndOfLine) { 6967 verifyFormat("while"); 6968 verifyFormat("operator"); 6969 } 6970 6971 //===----------------------------------------------------------------------===// 6972 // Objective-C tests. 6973 //===----------------------------------------------------------------------===// 6974 6975 TEST_F(FormatTest, FormatForObjectiveCMethodDecls) { 6976 verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;"); 6977 EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;", 6978 format("-(NSUInteger)indexOfObject:(id)anObject;")); 6979 EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;")); 6980 EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;")); 6981 EXPECT_EQ("- (NSInteger)Method3:(id)anObject;", 6982 format("-(NSInteger)Method3:(id)anObject;")); 6983 EXPECT_EQ("- (NSInteger)Method4:(id)anObject;", 6984 format("-(NSInteger)Method4:(id)anObject;")); 6985 EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;", 6986 format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;")); 6987 EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;", 6988 format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;")); 6989 EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6990 "forAllCells:(BOOL)flag;", 6991 format("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6992 "forAllCells:(BOOL)flag;")); 6993 6994 // Very long objectiveC method declaration. 6995 verifyFormat("- (void)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 6996 " (SoooooooooooooooooooooomeType *)bbbbbbbbbb;"); 6997 verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n" 6998 " inRange:(NSRange)range\n" 6999 " outRange:(NSRange)out_range\n" 7000 " outRange1:(NSRange)out_range1\n" 7001 " outRange2:(NSRange)out_range2\n" 7002 " outRange3:(NSRange)out_range3\n" 7003 " outRange4:(NSRange)out_range4\n" 7004 " outRange5:(NSRange)out_range5\n" 7005 " outRange6:(NSRange)out_range6\n" 7006 " outRange7:(NSRange)out_range7\n" 7007 " outRange8:(NSRange)out_range8\n" 7008 " outRange9:(NSRange)out_range9;"); 7009 7010 // When the function name has to be wrapped. 7011 FormatStyle Style = getLLVMStyle(); 7012 Style.IndentWrappedFunctionNames = false; 7013 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 7014 "veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 7015 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 7016 "}", 7017 Style); 7018 Style.IndentWrappedFunctionNames = true; 7019 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 7020 " veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 7021 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 7022 "}", 7023 Style); 7024 7025 verifyFormat("- (int)sum:(vector<int>)numbers;"); 7026 verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;"); 7027 // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC 7028 // protocol lists (but not for template classes): 7029 // verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;"); 7030 7031 verifyFormat("- (int (*)())foo:(int (*)())f;"); 7032 verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;"); 7033 7034 // If there's no return type (very rare in practice!), LLVM and Google style 7035 // agree. 7036 verifyFormat("- foo;"); 7037 verifyFormat("- foo:(int)f;"); 7038 verifyGoogleFormat("- foo:(int)foo;"); 7039 } 7040 7041 TEST_F(FormatTest, FormatObjCInterface) { 7042 verifyFormat("@interface Foo : NSObject <NSSomeDelegate> {\n" 7043 "@public\n" 7044 " int field1;\n" 7045 "@protected\n" 7046 " int field2;\n" 7047 "@private\n" 7048 " int field3;\n" 7049 "@package\n" 7050 " int field4;\n" 7051 "}\n" 7052 "+ (id)init;\n" 7053 "@end"); 7054 7055 verifyGoogleFormat("@interface Foo : NSObject<NSSomeDelegate> {\n" 7056 " @public\n" 7057 " int field1;\n" 7058 " @protected\n" 7059 " int field2;\n" 7060 " @private\n" 7061 " int field3;\n" 7062 " @package\n" 7063 " int field4;\n" 7064 "}\n" 7065 "+ (id)init;\n" 7066 "@end"); 7067 7068 verifyFormat("@interface /* wait for it */ Foo\n" 7069 "+ (id)init;\n" 7070 "// Look, a comment!\n" 7071 "- (int)answerWith:(int)i;\n" 7072 "@end"); 7073 7074 verifyFormat("@interface Foo\n" 7075 "@end\n" 7076 "@interface Bar\n" 7077 "@end"); 7078 7079 verifyFormat("@interface Foo : Bar\n" 7080 "+ (id)init;\n" 7081 "@end"); 7082 7083 verifyFormat("@interface Foo : /**/ Bar /**/ <Baz, /**/ Quux>\n" 7084 "+ (id)init;\n" 7085 "@end"); 7086 7087 verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n" 7088 "+ (id)init;\n" 7089 "@end"); 7090 7091 verifyFormat("@interface Foo (HackStuff)\n" 7092 "+ (id)init;\n" 7093 "@end"); 7094 7095 verifyFormat("@interface Foo ()\n" 7096 "+ (id)init;\n" 7097 "@end"); 7098 7099 verifyFormat("@interface Foo (HackStuff) <MyProtocol>\n" 7100 "+ (id)init;\n" 7101 "@end"); 7102 7103 verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n" 7104 "+ (id)init;\n" 7105 "@end"); 7106 7107 verifyFormat("@interface Foo {\n" 7108 " int _i;\n" 7109 "}\n" 7110 "+ (id)init;\n" 7111 "@end"); 7112 7113 verifyFormat("@interface Foo : Bar {\n" 7114 " int _i;\n" 7115 "}\n" 7116 "+ (id)init;\n" 7117 "@end"); 7118 7119 verifyFormat("@interface Foo : Bar <Baz, Quux> {\n" 7120 " int _i;\n" 7121 "}\n" 7122 "+ (id)init;\n" 7123 "@end"); 7124 7125 verifyFormat("@interface Foo (HackStuff) {\n" 7126 " int _i;\n" 7127 "}\n" 7128 "+ (id)init;\n" 7129 "@end"); 7130 7131 verifyFormat("@interface Foo () {\n" 7132 " int _i;\n" 7133 "}\n" 7134 "+ (id)init;\n" 7135 "@end"); 7136 7137 verifyFormat("@interface Foo (HackStuff) <MyProtocol> {\n" 7138 " int _i;\n" 7139 "}\n" 7140 "+ (id)init;\n" 7141 "@end"); 7142 7143 FormatStyle OnePerLine = getGoogleStyle(); 7144 OnePerLine.BinPackParameters = false; 7145 verifyFormat("@interface aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ()<\n" 7146 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7147 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7148 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7149 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {\n" 7150 "}", 7151 OnePerLine); 7152 } 7153 7154 TEST_F(FormatTest, FormatObjCImplementation) { 7155 verifyFormat("@implementation Foo : NSObject {\n" 7156 "@public\n" 7157 " int field1;\n" 7158 "@protected\n" 7159 " int field2;\n" 7160 "@private\n" 7161 " int field3;\n" 7162 "@package\n" 7163 " int field4;\n" 7164 "}\n" 7165 "+ (id)init {\n}\n" 7166 "@end"); 7167 7168 verifyGoogleFormat("@implementation Foo : NSObject {\n" 7169 " @public\n" 7170 " int field1;\n" 7171 " @protected\n" 7172 " int field2;\n" 7173 " @private\n" 7174 " int field3;\n" 7175 " @package\n" 7176 " int field4;\n" 7177 "}\n" 7178 "+ (id)init {\n}\n" 7179 "@end"); 7180 7181 verifyFormat("@implementation Foo\n" 7182 "+ (id)init {\n" 7183 " if (true)\n" 7184 " return nil;\n" 7185 "}\n" 7186 "// Look, a comment!\n" 7187 "- (int)answerWith:(int)i {\n" 7188 " return i;\n" 7189 "}\n" 7190 "+ (int)answerWith:(int)i {\n" 7191 " return i;\n" 7192 "}\n" 7193 "@end"); 7194 7195 verifyFormat("@implementation Foo\n" 7196 "@end\n" 7197 "@implementation Bar\n" 7198 "@end"); 7199 7200 EXPECT_EQ("@implementation Foo : Bar\n" 7201 "+ (id)init {\n}\n" 7202 "- (void)foo {\n}\n" 7203 "@end", 7204 format("@implementation Foo : Bar\n" 7205 "+(id)init{}\n" 7206 "-(void)foo{}\n" 7207 "@end")); 7208 7209 verifyFormat("@implementation Foo {\n" 7210 " int _i;\n" 7211 "}\n" 7212 "+ (id)init {\n}\n" 7213 "@end"); 7214 7215 verifyFormat("@implementation Foo : Bar {\n" 7216 " int _i;\n" 7217 "}\n" 7218 "+ (id)init {\n}\n" 7219 "@end"); 7220 7221 verifyFormat("@implementation Foo (HackStuff)\n" 7222 "+ (id)init {\n}\n" 7223 "@end"); 7224 verifyFormat("@implementation ObjcClass\n" 7225 "- (void)method;\n" 7226 "{}\n" 7227 "@end"); 7228 } 7229 7230 TEST_F(FormatTest, FormatObjCProtocol) { 7231 verifyFormat("@protocol Foo\n" 7232 "@property(weak) id delegate;\n" 7233 "- (NSUInteger)numberOfThings;\n" 7234 "@end"); 7235 7236 verifyFormat("@protocol MyProtocol <NSObject>\n" 7237 "- (NSUInteger)numberOfThings;\n" 7238 "@end"); 7239 7240 verifyGoogleFormat("@protocol MyProtocol<NSObject>\n" 7241 "- (NSUInteger)numberOfThings;\n" 7242 "@end"); 7243 7244 verifyFormat("@protocol Foo;\n" 7245 "@protocol Bar;\n"); 7246 7247 verifyFormat("@protocol Foo\n" 7248 "@end\n" 7249 "@protocol Bar\n" 7250 "@end"); 7251 7252 verifyFormat("@protocol myProtocol\n" 7253 "- (void)mandatoryWithInt:(int)i;\n" 7254 "@optional\n" 7255 "- (void)optional;\n" 7256 "@required\n" 7257 "- (void)required;\n" 7258 "@optional\n" 7259 "@property(assign) int madProp;\n" 7260 "@end\n"); 7261 7262 verifyFormat("@property(nonatomic, assign, readonly)\n" 7263 " int *looooooooooooooooooooooooooooongNumber;\n" 7264 "@property(nonatomic, assign, readonly)\n" 7265 " NSString *looooooooooooooooooooooooooooongName;"); 7266 7267 verifyFormat("@implementation PR18406\n" 7268 "}\n" 7269 "@end"); 7270 } 7271 7272 TEST_F(FormatTest, FormatObjCMethodDeclarations) { 7273 verifyFormat("- (void)doSomethingWith:(GTMFoo *)theFoo\n" 7274 " rect:(NSRect)theRect\n" 7275 " interval:(float)theInterval {\n" 7276 "}"); 7277 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7278 " longKeyword:(NSRect)theRect\n" 7279 " evenLongerKeyword:(float)theInterval\n" 7280 " error:(NSError **)theError {\n" 7281 "}"); 7282 verifyFormat("- (instancetype)initXxxxxx:(id<x>)x\n" 7283 " y:(id<yyyyyyyyyyyyyyyyyyyy>)y\n" 7284 " NS_DESIGNATED_INITIALIZER;", 7285 getLLVMStyleWithColumns(60)); 7286 7287 // Continuation indent width should win over aligning colons if the function 7288 // name is long. 7289 FormatStyle continuationStyle = getGoogleStyle(); 7290 continuationStyle.ColumnLimit = 40; 7291 continuationStyle.IndentWrappedFunctionNames = true; 7292 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7293 " dontAlignNamef:(NSRect)theRect {\n" 7294 "}", 7295 continuationStyle); 7296 7297 // Make sure we don't break aligning for short parameter names. 7298 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7299 " aShortf:(NSRect)theRect {\n" 7300 "}", 7301 continuationStyle); 7302 } 7303 7304 TEST_F(FormatTest, FormatObjCMethodExpr) { 7305 verifyFormat("[foo bar:baz];"); 7306 verifyFormat("return [foo bar:baz];"); 7307 verifyFormat("return (a)[foo bar:baz];"); 7308 verifyFormat("f([foo bar:baz]);"); 7309 verifyFormat("f(2, [foo bar:baz]);"); 7310 verifyFormat("f(2, a ? b : c);"); 7311 verifyFormat("[[self initWithInt:4] bar:[baz quux:arrrr]];"); 7312 7313 // Unary operators. 7314 verifyFormat("int a = +[foo bar:baz];"); 7315 verifyFormat("int a = -[foo bar:baz];"); 7316 verifyFormat("int a = ![foo bar:baz];"); 7317 verifyFormat("int a = ~[foo bar:baz];"); 7318 verifyFormat("int a = ++[foo bar:baz];"); 7319 verifyFormat("int a = --[foo bar:baz];"); 7320 verifyFormat("int a = sizeof [foo bar:baz];"); 7321 verifyFormat("int a = alignof [foo bar:baz];", getGoogleStyle()); 7322 verifyFormat("int a = &[foo bar:baz];"); 7323 verifyFormat("int a = *[foo bar:baz];"); 7324 // FIXME: Make casts work, without breaking f()[4]. 7325 // verifyFormat("int a = (int)[foo bar:baz];"); 7326 // verifyFormat("return (int)[foo bar:baz];"); 7327 // verifyFormat("(void)[foo bar:baz];"); 7328 verifyFormat("return (MyType *)[self.tableView cellForRowAtIndexPath:cell];"); 7329 7330 // Binary operators. 7331 verifyFormat("[foo bar:baz], [foo bar:baz];"); 7332 verifyFormat("[foo bar:baz] = [foo bar:baz];"); 7333 verifyFormat("[foo bar:baz] *= [foo bar:baz];"); 7334 verifyFormat("[foo bar:baz] /= [foo bar:baz];"); 7335 verifyFormat("[foo bar:baz] %= [foo bar:baz];"); 7336 verifyFormat("[foo bar:baz] += [foo bar:baz];"); 7337 verifyFormat("[foo bar:baz] -= [foo bar:baz];"); 7338 verifyFormat("[foo bar:baz] <<= [foo bar:baz];"); 7339 verifyFormat("[foo bar:baz] >>= [foo bar:baz];"); 7340 verifyFormat("[foo bar:baz] &= [foo bar:baz];"); 7341 verifyFormat("[foo bar:baz] ^= [foo bar:baz];"); 7342 verifyFormat("[foo bar:baz] |= [foo bar:baz];"); 7343 verifyFormat("[foo bar:baz] ? [foo bar:baz] : [foo bar:baz];"); 7344 verifyFormat("[foo bar:baz] || [foo bar:baz];"); 7345 verifyFormat("[foo bar:baz] && [foo bar:baz];"); 7346 verifyFormat("[foo bar:baz] | [foo bar:baz];"); 7347 verifyFormat("[foo bar:baz] ^ [foo bar:baz];"); 7348 verifyFormat("[foo bar:baz] & [foo bar:baz];"); 7349 verifyFormat("[foo bar:baz] == [foo bar:baz];"); 7350 verifyFormat("[foo bar:baz] != [foo bar:baz];"); 7351 verifyFormat("[foo bar:baz] >= [foo bar:baz];"); 7352 verifyFormat("[foo bar:baz] <= [foo bar:baz];"); 7353 verifyFormat("[foo bar:baz] > [foo bar:baz];"); 7354 verifyFormat("[foo bar:baz] < [foo bar:baz];"); 7355 verifyFormat("[foo bar:baz] >> [foo bar:baz];"); 7356 verifyFormat("[foo bar:baz] << [foo bar:baz];"); 7357 verifyFormat("[foo bar:baz] - [foo bar:baz];"); 7358 verifyFormat("[foo bar:baz] + [foo bar:baz];"); 7359 verifyFormat("[foo bar:baz] * [foo bar:baz];"); 7360 verifyFormat("[foo bar:baz] / [foo bar:baz];"); 7361 verifyFormat("[foo bar:baz] % [foo bar:baz];"); 7362 // Whew! 7363 7364 verifyFormat("return in[42];"); 7365 verifyFormat("for (auto v : in[1]) {\n}"); 7366 verifyFormat("for (int i = 0; i < in[a]; ++i) {\n}"); 7367 verifyFormat("for (int i = 0; in[a] < i; ++i) {\n}"); 7368 verifyFormat("for (int i = 0; i < n; ++i, ++in[a]) {\n}"); 7369 verifyFormat("for (int i = 0; i < n; ++i, in[a]++) {\n}"); 7370 verifyFormat("for (int i = 0; i < f(in[a]); ++i, in[a]++) {\n}"); 7371 verifyFormat("for (id foo in [self getStuffFor:bla]) {\n" 7372 "}"); 7373 verifyFormat("[self aaaaa:MACRO(a, b:, c:)];"); 7374 verifyFormat("[self aaaaa:(1 + 2) bbbbb:3];"); 7375 verifyFormat("[self aaaaa:(Type)a bbbbb:3];"); 7376 7377 verifyFormat("[self stuffWithInt:(4 + 2) float:4.5];"); 7378 verifyFormat("[self stuffWithInt:a ? b : c float:4.5];"); 7379 verifyFormat("[self stuffWithInt:a ? [self foo:bar] : c];"); 7380 verifyFormat("[self stuffWithInt:a ? (e ? f : g) : c];"); 7381 verifyFormat("[cond ? obj1 : obj2 methodWithParam:param]"); 7382 verifyFormat("[button setAction:@selector(zoomOut:)];"); 7383 verifyFormat("[color getRed:&r green:&g blue:&b alpha:&a];"); 7384 7385 verifyFormat("arr[[self indexForFoo:a]];"); 7386 verifyFormat("throw [self errorFor:a];"); 7387 verifyFormat("@throw [self errorFor:a];"); 7388 7389 verifyFormat("[(id)foo bar:(id)baz quux:(id)snorf];"); 7390 verifyFormat("[(id)foo bar:(id) ? baz : quux];"); 7391 verifyFormat("4 > 4 ? (id)a : (id)baz;"); 7392 7393 // This tests that the formatter doesn't break after "backing" but before ":", 7394 // which would be at 80 columns. 7395 verifyFormat( 7396 "void f() {\n" 7397 " if ((self = [super initWithContentRect:contentRect\n" 7398 " styleMask:styleMask ?: otherMask\n" 7399 " backing:NSBackingStoreBuffered\n" 7400 " defer:YES]))"); 7401 7402 verifyFormat( 7403 "[foo checkThatBreakingAfterColonWorksOk:\n" 7404 " [bar ifItDoes:reduceOverallLineLengthLikeInThisCase]];"); 7405 7406 verifyFormat("[myObj short:arg1 // Force line break\n" 7407 " longKeyword:arg2 != nil ? arg2 : @\"longKeyword\"\n" 7408 " evenLongerKeyword:arg3 ?: @\"evenLongerKeyword\"\n" 7409 " error:arg4];"); 7410 verifyFormat( 7411 "void f() {\n" 7412 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7413 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7414 " pos.width(), pos.height())\n" 7415 " styleMask:NSBorderlessWindowMask\n" 7416 " backing:NSBackingStoreBuffered\n" 7417 " defer:NO]);\n" 7418 "}"); 7419 verifyFormat( 7420 "void f() {\n" 7421 " popup_wdow_.reset([[RenderWidgetPopupWindow alloc]\n" 7422 " iniithContentRect:NSMakRet(origin_global.x, origin_global.y,\n" 7423 " pos.width(), pos.height())\n" 7424 " syeMask:NSBorderlessWindowMask\n" 7425 " bking:NSBackingStoreBuffered\n" 7426 " der:NO]);\n" 7427 "}", 7428 getLLVMStyleWithColumns(70)); 7429 verifyFormat( 7430 "void f() {\n" 7431 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7432 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7433 " pos.width(), pos.height())\n" 7434 " styleMask:NSBorderlessWindowMask\n" 7435 " backing:NSBackingStoreBuffered\n" 7436 " defer:NO]);\n" 7437 "}", 7438 getChromiumStyle(FormatStyle::LK_Cpp)); 7439 verifyFormat("[contentsContainer replaceSubview:[subviews objectAtIndex:0]\n" 7440 " with:contentsNativeView];"); 7441 7442 verifyFormat( 7443 "[pboard addTypes:[NSArray arrayWithObject:kBookmarkButtonDragType]\n" 7444 " owner:nillllll];"); 7445 7446 verifyFormat( 7447 "[pboard setData:[NSData dataWithBytes:&button length:sizeof(button)]\n" 7448 " forType:kBookmarkButtonDragType];"); 7449 7450 verifyFormat("[defaultCenter addObserver:self\n" 7451 " selector:@selector(willEnterFullscreen)\n" 7452 " name:kWillEnterFullscreenNotification\n" 7453 " object:nil];"); 7454 verifyFormat("[image_rep drawInRect:drawRect\n" 7455 " fromRect:NSZeroRect\n" 7456 " operation:NSCompositeCopy\n" 7457 " fraction:1.0\n" 7458 " respectFlipped:NO\n" 7459 " hints:nil];"); 7460 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7461 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7462 verifyFormat("[aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 7463 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7464 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaa[aaaaaaaaaaaaaaaaaaaaa]\n" 7465 " aaaaaaaaaaaaaaaaaaaaaa];"); 7466 verifyFormat("[call aaaaaaaa.aaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa\n" 7467 " .aaaaaaaa.aaaaaaaa];", // FIXME: Indentation seems off. 7468 getLLVMStyleWithColumns(60)); 7469 7470 verifyFormat( 7471 "scoped_nsobject<NSTextField> message(\n" 7472 " // The frame will be fixed up when |-setMessageText:| is called.\n" 7473 " [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)]);"); 7474 verifyFormat("[self aaaaaa:bbbbbbbbbbbbb\n" 7475 " aaaaaaaaaa:bbbbbbbbbbbbbbbbb\n" 7476 " aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb\n" 7477 " aaaa:bbb];"); 7478 verifyFormat("[self param:function( //\n" 7479 " parameter)]"); 7480 verifyFormat( 7481 "[self aaaaaaaaaa:aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7482 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7483 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa];"); 7484 7485 // FIXME: This violates the column limit. 7486 verifyFormat( 7487 "[aaaaaaaaaaaaaaaaaaaaaaaaa\n" 7488 " aaaaaaaaaaaaaaaaa:aaaaaaaa\n" 7489 " aaa:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];", 7490 getLLVMStyleWithColumns(60)); 7491 7492 // Variadic parameters. 7493 verifyFormat( 7494 "NSArray *myStrings = [NSArray stringarray:@\"a\", @\"b\", nil];"); 7495 verifyFormat( 7496 "[self aaaaaaaaaaaaa:aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7497 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7498 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa];"); 7499 verifyFormat("[self // break\n" 7500 " a:a\n" 7501 " aaa:aaa];"); 7502 verifyFormat("bool a = ([aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaa ||\n" 7503 " [aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaaaaa);"); 7504 } 7505 7506 TEST_F(FormatTest, ObjCAt) { 7507 verifyFormat("@autoreleasepool"); 7508 verifyFormat("@catch"); 7509 verifyFormat("@class"); 7510 verifyFormat("@compatibility_alias"); 7511 verifyFormat("@defs"); 7512 verifyFormat("@dynamic"); 7513 verifyFormat("@encode"); 7514 verifyFormat("@end"); 7515 verifyFormat("@finally"); 7516 verifyFormat("@implementation"); 7517 verifyFormat("@import"); 7518 verifyFormat("@interface"); 7519 verifyFormat("@optional"); 7520 verifyFormat("@package"); 7521 verifyFormat("@private"); 7522 verifyFormat("@property"); 7523 verifyFormat("@protected"); 7524 verifyFormat("@protocol"); 7525 verifyFormat("@public"); 7526 verifyFormat("@required"); 7527 verifyFormat("@selector"); 7528 verifyFormat("@synchronized"); 7529 verifyFormat("@synthesize"); 7530 verifyFormat("@throw"); 7531 verifyFormat("@try"); 7532 7533 EXPECT_EQ("@interface", format("@ interface")); 7534 7535 // The precise formatting of this doesn't matter, nobody writes code like 7536 // this. 7537 verifyFormat("@ /*foo*/ interface"); 7538 } 7539 7540 TEST_F(FormatTest, ObjCSnippets) { 7541 verifyFormat("@autoreleasepool {\n" 7542 " foo();\n" 7543 "}"); 7544 verifyFormat("@class Foo, Bar;"); 7545 verifyFormat("@compatibility_alias AliasName ExistingClass;"); 7546 verifyFormat("@dynamic textColor;"); 7547 verifyFormat("char *buf1 = @encode(int *);"); 7548 verifyFormat("char *buf1 = @encode(typeof(4 * 5));"); 7549 verifyFormat("char *buf1 = @encode(int **);"); 7550 verifyFormat("Protocol *proto = @protocol(p1);"); 7551 verifyFormat("SEL s = @selector(foo:);"); 7552 verifyFormat("@synchronized(self) {\n" 7553 " f();\n" 7554 "}"); 7555 7556 verifyFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7557 verifyGoogleFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7558 7559 verifyFormat("@property(assign, nonatomic) CGFloat hoverAlpha;"); 7560 verifyFormat("@property(assign, getter=isEditable) BOOL editable;"); 7561 verifyGoogleFormat("@property(assign, getter=isEditable) BOOL editable;"); 7562 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7563 getMozillaStyle()); 7564 verifyFormat("@property BOOL editable;", getMozillaStyle()); 7565 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7566 getWebKitStyle()); 7567 verifyFormat("@property BOOL editable;", getWebKitStyle()); 7568 7569 verifyFormat("@import foo.bar;\n" 7570 "@import baz;"); 7571 } 7572 7573 TEST_F(FormatTest, ObjCForIn) { 7574 verifyFormat("- (void)test {\n" 7575 " for (NSString *n in arrayOfStrings) {\n" 7576 " foo(n);\n" 7577 " }\n" 7578 "}"); 7579 verifyFormat("- (void)test {\n" 7580 " for (NSString *n in (__bridge NSArray *)arrayOfStrings) {\n" 7581 " foo(n);\n" 7582 " }\n" 7583 "}"); 7584 } 7585 7586 TEST_F(FormatTest, ObjCLiterals) { 7587 verifyFormat("@\"String\""); 7588 verifyFormat("@1"); 7589 verifyFormat("@+4.8"); 7590 verifyFormat("@-4"); 7591 verifyFormat("@1LL"); 7592 verifyFormat("@.5"); 7593 verifyFormat("@'c'"); 7594 verifyFormat("@true"); 7595 7596 verifyFormat("NSNumber *smallestInt = @(-INT_MAX - 1);"); 7597 verifyFormat("NSNumber *piOverTwo = @(M_PI / 2);"); 7598 verifyFormat("NSNumber *favoriteColor = @(Green);"); 7599 verifyFormat("NSString *path = @(getenv(\"PATH\"));"); 7600 7601 verifyFormat("[dictionary setObject:@(1) forKey:@\"number\"];"); 7602 } 7603 7604 TEST_F(FormatTest, ObjCDictLiterals) { 7605 verifyFormat("@{"); 7606 verifyFormat("@{}"); 7607 verifyFormat("@{@\"one\" : @1}"); 7608 verifyFormat("return @{@\"one\" : @1;"); 7609 verifyFormat("@{@\"one\" : @1}"); 7610 7611 verifyFormat("@{@\"one\" : @{@2 : @1}}"); 7612 verifyFormat("@{\n" 7613 " @\"one\" : @{@2 : @1},\n" 7614 "}"); 7615 7616 verifyFormat("@{1 > 2 ? @\"one\" : @\"two\" : 1 > 2 ? @1 : @2}"); 7617 verifyIncompleteFormat("[self setDict:@{}"); 7618 verifyIncompleteFormat("[self setDict:@{@1 : @2}"); 7619 verifyFormat("NSLog(@\"%@\", @{@1 : @2, @2 : @3}[@1]);"); 7620 verifyFormat( 7621 "NSDictionary *masses = @{@\"H\" : @1.0078, @\"He\" : @4.0026};"); 7622 verifyFormat( 7623 "NSDictionary *settings = @{AVEncoderKey : @(AVAudioQualityMax)};"); 7624 7625 verifyFormat("NSDictionary *d = @{\n" 7626 " @\"nam\" : NSUserNam(),\n" 7627 " @\"dte\" : [NSDate date],\n" 7628 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7629 "};"); 7630 verifyFormat( 7631 "@{\n" 7632 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7633 "regularFont,\n" 7634 "};"); 7635 verifyGoogleFormat( 7636 "@{\n" 7637 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7638 "regularFont,\n" 7639 "};"); 7640 verifyFormat( 7641 "@{\n" 7642 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :\n" 7643 " reeeeeeeeeeeeeeeeeeeeeeeegularFont,\n" 7644 "};"); 7645 7646 // We should try to be robust in case someone forgets the "@". 7647 verifyFormat("NSDictionary *d = {\n" 7648 " @\"nam\" : NSUserNam(),\n" 7649 " @\"dte\" : [NSDate date],\n" 7650 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7651 "};"); 7652 verifyFormat("NSMutableDictionary *dictionary =\n" 7653 " [NSMutableDictionary dictionaryWithDictionary:@{\n" 7654 " aaaaaaaaaaaaaaaaaaaaa : aaaaaaaaaaaaa,\n" 7655 " bbbbbbbbbbbbbbbbbb : bbbbb,\n" 7656 " cccccccccccccccc : ccccccccccccccc\n" 7657 " }];"); 7658 7659 // Ensure that casts before the key are kept on the same line as the key. 7660 verifyFormat( 7661 "NSDictionary *d = @{\n" 7662 " (aaaaaaaa id)aaaaaaaaa : (aaaaaaaa id)aaaaaaaaaaaaaaaaaaaaaaaa,\n" 7663 " (aaaaaaaa id)aaaaaaaaaaaaaa : (aaaaaaaa id)aaaaaaaaaaaaaa,\n" 7664 "};"); 7665 } 7666 7667 TEST_F(FormatTest, ObjCArrayLiterals) { 7668 verifyIncompleteFormat("@["); 7669 verifyFormat("@[]"); 7670 verifyFormat( 7671 "NSArray *array = @[ @\" Hey \", NSApp, [NSNumber numberWithInt:42] ];"); 7672 verifyFormat("return @[ @3, @[], @[ @4, @5 ] ];"); 7673 verifyFormat("NSArray *array = @[ [foo description] ];"); 7674 7675 verifyFormat( 7676 "NSArray *some_variable = @[\n" 7677 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 7678 " @\"aaaaaaaaaaaaaaaaa\",\n" 7679 " @\"aaaaaaaaaaaaaaaaa\",\n" 7680 " @\"aaaaaaaaaaaaaaaaa\"\n" 7681 "];"); 7682 verifyFormat("NSArray *some_variable = @[\n" 7683 " @\"aaaaaaaaaaaaaaaaa\",\n" 7684 " @\"aaaaaaaaaaaaaaaaa\",\n" 7685 " @\"aaaaaaaaaaaaaaaaa\",\n" 7686 " @\"aaaaaaaaaaaaaaaaa\",\n" 7687 "];"); 7688 verifyGoogleFormat("NSArray *some_variable = @[\n" 7689 " @\"aaaaaaaaaaaaaaaaa\",\n" 7690 " @\"aaaaaaaaaaaaaaaaa\",\n" 7691 " @\"aaaaaaaaaaaaaaaaa\",\n" 7692 " @\"aaaaaaaaaaaaaaaaa\"\n" 7693 "];"); 7694 verifyFormat("NSArray *array = @[\n" 7695 " @\"a\",\n" 7696 " @\"a\",\n" // Trailing comma -> one per line. 7697 "];"); 7698 7699 // We should try to be robust in case someone forgets the "@". 7700 verifyFormat("NSArray *some_variable = [\n" 7701 " @\"aaaaaaaaaaaaaaaaa\",\n" 7702 " @\"aaaaaaaaaaaaaaaaa\",\n" 7703 " @\"aaaaaaaaaaaaaaaaa\",\n" 7704 " @\"aaaaaaaaaaaaaaaaa\",\n" 7705 "];"); 7706 verifyFormat( 7707 "- (NSAttributedString *)attributedStringForSegment:(NSUInteger)segment\n" 7708 " index:(NSUInteger)index\n" 7709 " nonDigitAttributes:\n" 7710 " (NSDictionary *)noDigitAttributes;"); 7711 verifyFormat("[someFunction someLooooooooooooongParameter:@[\n" 7712 " NSBundle.mainBundle.infoDictionary[@\"a\"]\n" 7713 "]];"); 7714 } 7715 7716 TEST_F(FormatTest, BreaksStringLiterals) { 7717 EXPECT_EQ("\"some text \"\n" 7718 "\"other\";", 7719 format("\"some text other\";", getLLVMStyleWithColumns(12))); 7720 EXPECT_EQ("\"some text \"\n" 7721 "\"other\";", 7722 format("\\\n\"some text other\";", getLLVMStyleWithColumns(12))); 7723 EXPECT_EQ( 7724 "#define A \\\n" 7725 " \"some \" \\\n" 7726 " \"text \" \\\n" 7727 " \"other\";", 7728 format("#define A \"some text other\";", getLLVMStyleWithColumns(12))); 7729 EXPECT_EQ( 7730 "#define A \\\n" 7731 " \"so \" \\\n" 7732 " \"text \" \\\n" 7733 " \"other\";", 7734 format("#define A \"so text other\";", getLLVMStyleWithColumns(12))); 7735 7736 EXPECT_EQ("\"some text\"", 7737 format("\"some text\"", getLLVMStyleWithColumns(1))); 7738 EXPECT_EQ("\"some text\"", 7739 format("\"some text\"", getLLVMStyleWithColumns(11))); 7740 EXPECT_EQ("\"some \"\n" 7741 "\"text\"", 7742 format("\"some text\"", getLLVMStyleWithColumns(10))); 7743 EXPECT_EQ("\"some \"\n" 7744 "\"text\"", 7745 format("\"some text\"", getLLVMStyleWithColumns(7))); 7746 EXPECT_EQ("\"some\"\n" 7747 "\" tex\"\n" 7748 "\"t\"", 7749 format("\"some text\"", getLLVMStyleWithColumns(6))); 7750 EXPECT_EQ("\"some\"\n" 7751 "\" tex\"\n" 7752 "\" and\"", 7753 format("\"some tex and\"", getLLVMStyleWithColumns(6))); 7754 EXPECT_EQ("\"some\"\n" 7755 "\"/tex\"\n" 7756 "\"/and\"", 7757 format("\"some/tex/and\"", getLLVMStyleWithColumns(6))); 7758 7759 EXPECT_EQ("variable =\n" 7760 " \"long string \"\n" 7761 " \"literal\";", 7762 format("variable = \"long string literal\";", 7763 getLLVMStyleWithColumns(20))); 7764 7765 EXPECT_EQ("variable = f(\n" 7766 " \"long string \"\n" 7767 " \"literal\",\n" 7768 " short,\n" 7769 " loooooooooooooooooooong);", 7770 format("variable = f(\"long string literal\", short, " 7771 "loooooooooooooooooooong);", 7772 getLLVMStyleWithColumns(20))); 7773 7774 EXPECT_EQ( 7775 "f(g(\"long string \"\n" 7776 " \"literal\"),\n" 7777 " b);", 7778 format("f(g(\"long string literal\"), b);", getLLVMStyleWithColumns(20))); 7779 EXPECT_EQ("f(g(\"long string \"\n" 7780 " \"literal\",\n" 7781 " a),\n" 7782 " b);", 7783 format("f(g(\"long string literal\", a), b);", 7784 getLLVMStyleWithColumns(20))); 7785 EXPECT_EQ( 7786 "f(\"one two\".split(\n" 7787 " variable));", 7788 format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20))); 7789 EXPECT_EQ("f(\"one two three four five six \"\n" 7790 " \"seven\".split(\n" 7791 " really_looooong_variable));", 7792 format("f(\"one two three four five six seven\"." 7793 "split(really_looooong_variable));", 7794 getLLVMStyleWithColumns(33))); 7795 7796 EXPECT_EQ("f(\"some \"\n" 7797 " \"text\",\n" 7798 " other);", 7799 format("f(\"some text\", other);", getLLVMStyleWithColumns(10))); 7800 7801 // Only break as a last resort. 7802 verifyFormat( 7803 "aaaaaaaaaaaaaaaaaaaa(\n" 7804 " aaaaaaaaaaaaaaaaaaaa,\n" 7805 " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));"); 7806 7807 EXPECT_EQ("\"splitmea\"\n" 7808 "\"trandomp\"\n" 7809 "\"oint\"", 7810 format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10))); 7811 7812 EXPECT_EQ("\"split/\"\n" 7813 "\"pathat/\"\n" 7814 "\"slashes\"", 7815 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7816 7817 EXPECT_EQ("\"split/\"\n" 7818 "\"pathat/\"\n" 7819 "\"slashes\"", 7820 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7821 EXPECT_EQ("\"split at \"\n" 7822 "\"spaces/at/\"\n" 7823 "\"slashes.at.any$\"\n" 7824 "\"non-alphanumeric%\"\n" 7825 "\"1111111111characte\"\n" 7826 "\"rs\"", 7827 format("\"split at " 7828 "spaces/at/" 7829 "slashes.at." 7830 "any$non-" 7831 "alphanumeric%" 7832 "1111111111characte" 7833 "rs\"", 7834 getLLVMStyleWithColumns(20))); 7835 7836 // Verify that splitting the strings understands 7837 // Style::AlwaysBreakBeforeMultilineStrings. 7838 EXPECT_EQ( 7839 "aaaaaaaaaaaa(\n" 7840 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n" 7841 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");", 7842 format("aaaaaaaaaaaa(\"aaaaaaaaaaaaaaaaaaaaaaaaaa " 7843 "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7844 "aaaaaaaaaaaaaaaaaaaaaa\");", 7845 getGoogleStyle())); 7846 EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7847 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";", 7848 format("return \"aaaaaaaaaaaaaaaaaaaaaa " 7849 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7850 "aaaaaaaaaaaaaaaaaaaaaa\";", 7851 getGoogleStyle())); 7852 EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7853 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7854 format("llvm::outs() << " 7855 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa" 7856 "aaaaaaaaaaaaaaaaaaa\";")); 7857 EXPECT_EQ("ffff(\n" 7858 " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7859 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7860 format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " 7861 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7862 getGoogleStyle())); 7863 7864 FormatStyle AlignLeft = getLLVMStyleWithColumns(12); 7865 AlignLeft.AlignEscapedNewlinesLeft = true; 7866 EXPECT_EQ("#define A \\\n" 7867 " \"some \" \\\n" 7868 " \"text \" \\\n" 7869 " \"other\";", 7870 format("#define A \"some text other\";", AlignLeft)); 7871 } 7872 7873 TEST_F(FormatTest, FullyRemoveEmptyLines) { 7874 FormatStyle NoEmptyLines = getLLVMStyleWithColumns(80); 7875 NoEmptyLines.MaxEmptyLinesToKeep = 0; 7876 EXPECT_EQ("int i = a(b());", 7877 format("int i=a(\n\n b(\n\n\n )\n\n);", NoEmptyLines)); 7878 } 7879 7880 TEST_F(FormatTest, BreaksStringLiteralsWithTabs) { 7881 EXPECT_EQ( 7882 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7883 "(\n" 7884 " \"x\t\");", 7885 format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7886 "aaaaaaa(" 7887 "\"x\t\");")); 7888 } 7889 7890 TEST_F(FormatTest, BreaksWideAndNSStringLiterals) { 7891 EXPECT_EQ( 7892 "u8\"utf8 string \"\n" 7893 "u8\"literal\";", 7894 format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16))); 7895 EXPECT_EQ( 7896 "u\"utf16 string \"\n" 7897 "u\"literal\";", 7898 format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16))); 7899 EXPECT_EQ( 7900 "U\"utf32 string \"\n" 7901 "U\"literal\";", 7902 format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16))); 7903 EXPECT_EQ("L\"wide string \"\n" 7904 "L\"literal\";", 7905 format("L\"wide string literal\";", getGoogleStyleWithColumns(16))); 7906 EXPECT_EQ("@\"NSString \"\n" 7907 "@\"literal\";", 7908 format("@\"NSString literal\";", getGoogleStyleWithColumns(19))); 7909 7910 // This input makes clang-format try to split the incomplete unicode escape 7911 // sequence, which used to lead to a crasher. 7912 verifyNoCrash( 7913 "aaaaaaaaaaaaaaaaaaaa = L\"\\udff\"'; // aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 7914 getLLVMStyleWithColumns(60)); 7915 } 7916 7917 TEST_F(FormatTest, DoesNotBreakRawStringLiterals) { 7918 FormatStyle Style = getGoogleStyleWithColumns(15); 7919 EXPECT_EQ("R\"x(raw literal)x\";", format("R\"x(raw literal)x\";", Style)); 7920 EXPECT_EQ("uR\"x(raw literal)x\";", format("uR\"x(raw literal)x\";", Style)); 7921 EXPECT_EQ("LR\"x(raw literal)x\";", format("LR\"x(raw literal)x\";", Style)); 7922 EXPECT_EQ("UR\"x(raw literal)x\";", format("UR\"x(raw literal)x\";", Style)); 7923 EXPECT_EQ("u8R\"x(raw literal)x\";", 7924 format("u8R\"x(raw literal)x\";", Style)); 7925 } 7926 7927 TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) { 7928 FormatStyle Style = getLLVMStyleWithColumns(20); 7929 EXPECT_EQ( 7930 "_T(\"aaaaaaaaaaaaaa\")\n" 7931 "_T(\"aaaaaaaaaaaaaa\")\n" 7932 "_T(\"aaaaaaaaaaaa\")", 7933 format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style)); 7934 EXPECT_EQ("f(x, _T(\"aaaaaaaaa\")\n" 7935 " _T(\"aaaaaa\"),\n" 7936 " z);", 7937 format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style)); 7938 7939 // FIXME: Handle embedded spaces in one iteration. 7940 // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n" 7941 // "_T(\"aaaaaaaaaaaaa\")\n" 7942 // "_T(\"aaaaaaaaaaaaa\")\n" 7943 // "_T(\"a\")", 7944 // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7945 // getLLVMStyleWithColumns(20))); 7946 EXPECT_EQ( 7947 "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7948 format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style)); 7949 EXPECT_EQ("f(\n" 7950 "#if !TEST\n" 7951 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7952 "#endif\n" 7953 " );", 7954 format("f(\n" 7955 "#if !TEST\n" 7956 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7957 "#endif\n" 7958 ");")); 7959 EXPECT_EQ("f(\n" 7960 "\n" 7961 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));", 7962 format("f(\n" 7963 "\n" 7964 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));")); 7965 } 7966 7967 TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) { 7968 EXPECT_EQ( 7969 "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7970 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7971 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7972 format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7973 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7974 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";")); 7975 } 7976 7977 TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) { 7978 EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);", 7979 format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle())); 7980 EXPECT_EQ("fffffffffff(g(R\"x(\n" 7981 "multiline raw string literal xxxxxxxxxxxxxx\n" 7982 ")x\",\n" 7983 " a),\n" 7984 " b);", 7985 format("fffffffffff(g(R\"x(\n" 7986 "multiline raw string literal xxxxxxxxxxxxxx\n" 7987 ")x\", a), b);", 7988 getGoogleStyleWithColumns(20))); 7989 EXPECT_EQ("fffffffffff(\n" 7990 " g(R\"x(qqq\n" 7991 "multiline raw string literal xxxxxxxxxxxxxx\n" 7992 ")x\",\n" 7993 " a),\n" 7994 " b);", 7995 format("fffffffffff(g(R\"x(qqq\n" 7996 "multiline raw string literal xxxxxxxxxxxxxx\n" 7997 ")x\", a), b);", 7998 getGoogleStyleWithColumns(20))); 7999 8000 EXPECT_EQ("fffffffffff(R\"x(\n" 8001 "multiline raw string literal xxxxxxxxxxxxxx\n" 8002 ")x\");", 8003 format("fffffffffff(R\"x(\n" 8004 "multiline raw string literal xxxxxxxxxxxxxx\n" 8005 ")x\");", 8006 getGoogleStyleWithColumns(20))); 8007 EXPECT_EQ("fffffffffff(R\"x(\n" 8008 "multiline raw string literal xxxxxxxxxxxxxx\n" 8009 ")x\" + bbbbbb);", 8010 format("fffffffffff(R\"x(\n" 8011 "multiline raw string literal xxxxxxxxxxxxxx\n" 8012 ")x\" + bbbbbb);", 8013 getGoogleStyleWithColumns(20))); 8014 EXPECT_EQ("fffffffffff(\n" 8015 " R\"x(\n" 8016 "multiline raw string literal xxxxxxxxxxxxxx\n" 8017 ")x\" +\n" 8018 " bbbbbb);", 8019 format("fffffffffff(\n" 8020 " R\"x(\n" 8021 "multiline raw string literal xxxxxxxxxxxxxx\n" 8022 ")x\" + bbbbbb);", 8023 getGoogleStyleWithColumns(20))); 8024 } 8025 8026 TEST_F(FormatTest, SkipsUnknownStringLiterals) { 8027 verifyFormat("string a = \"unterminated;"); 8028 EXPECT_EQ("function(\"unterminated,\n" 8029 " OtherParameter);", 8030 format("function( \"unterminated,\n" 8031 " OtherParameter);")); 8032 } 8033 8034 TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) { 8035 FormatStyle Style = getLLVMStyle(); 8036 Style.Standard = FormatStyle::LS_Cpp03; 8037 EXPECT_EQ("#define x(_a) printf(\"foo\" _a);", 8038 format("#define x(_a) printf(\"foo\"_a);", Style)); 8039 } 8040 8041 TEST_F(FormatTest, UnderstandsCpp1y) { verifyFormat("int bi{1'000'000};"); } 8042 8043 TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) { 8044 EXPECT_EQ("someFunction(\"aaabbbcccd\"\n" 8045 " \"ddeeefff\");", 8046 format("someFunction(\"aaabbbcccdddeeefff\");", 8047 getLLVMStyleWithColumns(25))); 8048 EXPECT_EQ("someFunction1234567890(\n" 8049 " \"aaabbbcccdddeeefff\");", 8050 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 8051 getLLVMStyleWithColumns(26))); 8052 EXPECT_EQ("someFunction1234567890(\n" 8053 " \"aaabbbcccdddeeeff\"\n" 8054 " \"f\");", 8055 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 8056 getLLVMStyleWithColumns(25))); 8057 EXPECT_EQ("someFunction1234567890(\n" 8058 " \"aaabbbcccdddeeeff\"\n" 8059 " \"f\");", 8060 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 8061 getLLVMStyleWithColumns(24))); 8062 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 8063 " \"ddde \"\n" 8064 " \"efff\");", 8065 format("someFunction(\"aaabbbcc ddde efff\");", 8066 getLLVMStyleWithColumns(25))); 8067 EXPECT_EQ("someFunction(\"aaabbbccc \"\n" 8068 " \"ddeeefff\");", 8069 format("someFunction(\"aaabbbccc ddeeefff\");", 8070 getLLVMStyleWithColumns(25))); 8071 EXPECT_EQ("someFunction1234567890(\n" 8072 " \"aaabb \"\n" 8073 " \"cccdddeeefff\");", 8074 format("someFunction1234567890(\"aaabb cccdddeeefff\");", 8075 getLLVMStyleWithColumns(25))); 8076 EXPECT_EQ("#define A \\\n" 8077 " string s = \\\n" 8078 " \"123456789\" \\\n" 8079 " \"0\"; \\\n" 8080 " int i;", 8081 format("#define A string s = \"1234567890\"; int i;", 8082 getLLVMStyleWithColumns(20))); 8083 // FIXME: Put additional penalties on breaking at non-whitespace locations. 8084 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 8085 " \"dddeeeff\"\n" 8086 " \"f\");", 8087 format("someFunction(\"aaabbbcc dddeeefff\");", 8088 getLLVMStyleWithColumns(25))); 8089 } 8090 8091 TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) { 8092 EXPECT_EQ("\"\\a\"", format("\"\\a\"", getLLVMStyleWithColumns(3))); 8093 EXPECT_EQ("\"\\\"", format("\"\\\"", getLLVMStyleWithColumns(2))); 8094 EXPECT_EQ("\"test\"\n" 8095 "\"\\n\"", 8096 format("\"test\\n\"", getLLVMStyleWithColumns(7))); 8097 EXPECT_EQ("\"tes\\\\\"\n" 8098 "\"n\"", 8099 format("\"tes\\\\n\"", getLLVMStyleWithColumns(7))); 8100 EXPECT_EQ("\"\\\\\\\\\"\n" 8101 "\"\\n\"", 8102 format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7))); 8103 EXPECT_EQ("\"\\uff01\"", format("\"\\uff01\"", getLLVMStyleWithColumns(7))); 8104 EXPECT_EQ("\"\\uff01\"\n" 8105 "\"test\"", 8106 format("\"\\uff01test\"", getLLVMStyleWithColumns(8))); 8107 EXPECT_EQ("\"\\Uff01ff02\"", 8108 format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11))); 8109 EXPECT_EQ("\"\\x000000000001\"\n" 8110 "\"next\"", 8111 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16))); 8112 EXPECT_EQ("\"\\x000000000001next\"", 8113 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15))); 8114 EXPECT_EQ("\"\\x000000000001\"", 8115 format("\"\\x000000000001\"", getLLVMStyleWithColumns(7))); 8116 EXPECT_EQ("\"test\"\n" 8117 "\"\\000000\"\n" 8118 "\"000001\"", 8119 format("\"test\\000000000001\"", getLLVMStyleWithColumns(9))); 8120 EXPECT_EQ("\"test\\000\"\n" 8121 "\"00000000\"\n" 8122 "\"1\"", 8123 format("\"test\\000000000001\"", getLLVMStyleWithColumns(10))); 8124 } 8125 8126 TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) { 8127 verifyFormat("void f() {\n" 8128 " return g() {}\n" 8129 " void h() {}"); 8130 verifyFormat("int a[] = {void forgot_closing_brace(){f();\n" 8131 "g();\n" 8132 "}"); 8133 } 8134 8135 TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) { 8136 verifyFormat( 8137 "void f() { return C{param1, param2}.SomeCall(param1, param2); }"); 8138 } 8139 8140 TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) { 8141 verifyFormat("class X {\n" 8142 " void f() {\n" 8143 " }\n" 8144 "};", 8145 getLLVMStyleWithColumns(12)); 8146 } 8147 8148 TEST_F(FormatTest, ConfigurableIndentWidth) { 8149 FormatStyle EightIndent = getLLVMStyleWithColumns(18); 8150 EightIndent.IndentWidth = 8; 8151 EightIndent.ContinuationIndentWidth = 8; 8152 verifyFormat("void f() {\n" 8153 " someFunction();\n" 8154 " if (true) {\n" 8155 " f();\n" 8156 " }\n" 8157 "}", 8158 EightIndent); 8159 verifyFormat("class X {\n" 8160 " void f() {\n" 8161 " }\n" 8162 "};", 8163 EightIndent); 8164 verifyFormat("int x[] = {\n" 8165 " call(),\n" 8166 " call()};", 8167 EightIndent); 8168 } 8169 8170 TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) { 8171 verifyFormat("double\n" 8172 "f();", 8173 getLLVMStyleWithColumns(8)); 8174 } 8175 8176 TEST_F(FormatTest, ConfigurableUseOfTab) { 8177 FormatStyle Tab = getLLVMStyleWithColumns(42); 8178 Tab.IndentWidth = 8; 8179 Tab.UseTab = FormatStyle::UT_Always; 8180 Tab.AlignEscapedNewlinesLeft = true; 8181 8182 EXPECT_EQ("if (aaaaaaaa && // q\n" 8183 " bb)\t\t// w\n" 8184 "\t;", 8185 format("if (aaaaaaaa &&// q\n" 8186 "bb)// w\n" 8187 ";", 8188 Tab)); 8189 EXPECT_EQ("if (aaa && bbb) // w\n" 8190 "\t;", 8191 format("if(aaa&&bbb)// w\n" 8192 ";", 8193 Tab)); 8194 8195 verifyFormat("class X {\n" 8196 "\tvoid f() {\n" 8197 "\t\tsomeFunction(parameter1,\n" 8198 "\t\t\t parameter2);\n" 8199 "\t}\n" 8200 "};", 8201 Tab); 8202 verifyFormat("#define A \\\n" 8203 "\tvoid f() { \\\n" 8204 "\t\tsomeFunction( \\\n" 8205 "\t\t parameter1, \\\n" 8206 "\t\t parameter2); \\\n" 8207 "\t}", 8208 Tab); 8209 8210 Tab.TabWidth = 4; 8211 Tab.IndentWidth = 8; 8212 verifyFormat("class TabWidth4Indent8 {\n" 8213 "\t\tvoid f() {\n" 8214 "\t\t\t\tsomeFunction(parameter1,\n" 8215 "\t\t\t\t\t\t\t parameter2);\n" 8216 "\t\t}\n" 8217 "};", 8218 Tab); 8219 8220 Tab.TabWidth = 4; 8221 Tab.IndentWidth = 4; 8222 verifyFormat("class TabWidth4Indent4 {\n" 8223 "\tvoid f() {\n" 8224 "\t\tsomeFunction(parameter1,\n" 8225 "\t\t\t\t\t parameter2);\n" 8226 "\t}\n" 8227 "};", 8228 Tab); 8229 8230 Tab.TabWidth = 8; 8231 Tab.IndentWidth = 4; 8232 verifyFormat("class TabWidth8Indent4 {\n" 8233 " void f() {\n" 8234 "\tsomeFunction(parameter1,\n" 8235 "\t\t parameter2);\n" 8236 " }\n" 8237 "};", 8238 Tab); 8239 8240 Tab.TabWidth = 8; 8241 Tab.IndentWidth = 8; 8242 EXPECT_EQ("/*\n" 8243 "\t a\t\tcomment\n" 8244 "\t in multiple lines\n" 8245 " */", 8246 format(" /*\t \t \n" 8247 " \t \t a\t\tcomment\t \t\n" 8248 " \t \t in multiple lines\t\n" 8249 " \t */", 8250 Tab)); 8251 8252 Tab.UseTab = FormatStyle::UT_ForIndentation; 8253 verifyFormat("{\n" 8254 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8255 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8256 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8257 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8258 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8259 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8260 "};", 8261 Tab); 8262 verifyFormat("enum A {\n" 8263 "\ta1, // Force multiple lines\n" 8264 "\ta2,\n" 8265 "\ta3\n" 8266 "};", 8267 Tab); 8268 EXPECT_EQ("if (aaaaaaaa && // q\n" 8269 " bb) // w\n" 8270 "\t;", 8271 format("if (aaaaaaaa &&// q\n" 8272 "bb)// w\n" 8273 ";", 8274 Tab)); 8275 verifyFormat("class X {\n" 8276 "\tvoid f() {\n" 8277 "\t\tsomeFunction(parameter1,\n" 8278 "\t\t parameter2);\n" 8279 "\t}\n" 8280 "};", 8281 Tab); 8282 verifyFormat("{\n" 8283 "\tQ(\n" 8284 "\t {\n" 8285 "\t\t int a;\n" 8286 "\t\t someFunction(aaaaaaaa,\n" 8287 "\t\t bbbbbbb);\n" 8288 "\t },\n" 8289 "\t p);\n" 8290 "}", 8291 Tab); 8292 EXPECT_EQ("{\n" 8293 "\t/* aaaa\n" 8294 "\t bbbb */\n" 8295 "}", 8296 format("{\n" 8297 "/* aaaa\n" 8298 " bbbb */\n" 8299 "}", 8300 Tab)); 8301 EXPECT_EQ("{\n" 8302 "\t/*\n" 8303 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8304 "\t bbbbbbbbbbbbb\n" 8305 "\t*/\n" 8306 "}", 8307 format("{\n" 8308 "/*\n" 8309 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8310 "*/\n" 8311 "}", 8312 Tab)); 8313 EXPECT_EQ("{\n" 8314 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8315 "\t// bbbbbbbbbbbbb\n" 8316 "}", 8317 format("{\n" 8318 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8319 "}", 8320 Tab)); 8321 EXPECT_EQ("{\n" 8322 "\t/*\n" 8323 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8324 "\t bbbbbbbbbbbbb\n" 8325 "\t*/\n" 8326 "}", 8327 format("{\n" 8328 "\t/*\n" 8329 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8330 "\t*/\n" 8331 "}", 8332 Tab)); 8333 EXPECT_EQ("{\n" 8334 "\t/*\n" 8335 "\n" 8336 "\t*/\n" 8337 "}", 8338 format("{\n" 8339 "\t/*\n" 8340 "\n" 8341 "\t*/\n" 8342 "}", 8343 Tab)); 8344 EXPECT_EQ("{\n" 8345 "\t/*\n" 8346 " asdf\n" 8347 "\t*/\n" 8348 "}", 8349 format("{\n" 8350 "\t/*\n" 8351 " asdf\n" 8352 "\t*/\n" 8353 "}", 8354 Tab)); 8355 8356 Tab.UseTab = FormatStyle::UT_Never; 8357 EXPECT_EQ("/*\n" 8358 " a\t\tcomment\n" 8359 " in multiple lines\n" 8360 " */", 8361 format(" /*\t \t \n" 8362 " \t \t a\t\tcomment\t \t\n" 8363 " \t \t in multiple lines\t\n" 8364 " \t */", 8365 Tab)); 8366 EXPECT_EQ("/* some\n" 8367 " comment */", 8368 format(" \t \t /* some\n" 8369 " \t \t comment */", 8370 Tab)); 8371 EXPECT_EQ("int a; /* some\n" 8372 " comment */", 8373 format(" \t \t int a; /* some\n" 8374 " \t \t comment */", 8375 Tab)); 8376 8377 EXPECT_EQ("int a; /* some\n" 8378 "comment */", 8379 format(" \t \t int\ta; /* some\n" 8380 " \t \t comment */", 8381 Tab)); 8382 EXPECT_EQ("f(\"\t\t\"); /* some\n" 8383 " comment */", 8384 format(" \t \t f(\"\t\t\"); /* some\n" 8385 " \t \t comment */", 8386 Tab)); 8387 EXPECT_EQ("{\n" 8388 " /*\n" 8389 " * Comment\n" 8390 " */\n" 8391 " int i;\n" 8392 "}", 8393 format("{\n" 8394 "\t/*\n" 8395 "\t * Comment\n" 8396 "\t */\n" 8397 "\t int i;\n" 8398 "}")); 8399 } 8400 8401 TEST_F(FormatTest, CalculatesOriginalColumn) { 8402 EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8403 "q\"; /* some\n" 8404 " comment */", 8405 format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8406 "q\"; /* some\n" 8407 " comment */", 8408 getLLVMStyle())); 8409 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8410 "/* some\n" 8411 " comment */", 8412 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8413 " /* some\n" 8414 " comment */", 8415 getLLVMStyle())); 8416 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8417 "qqq\n" 8418 "/* some\n" 8419 " comment */", 8420 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8421 "qqq\n" 8422 " /* some\n" 8423 " comment */", 8424 getLLVMStyle())); 8425 EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8426 "wwww; /* some\n" 8427 " comment */", 8428 format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8429 "wwww; /* some\n" 8430 " comment */", 8431 getLLVMStyle())); 8432 } 8433 8434 TEST_F(FormatTest, ConfigurableSpaceBeforeParens) { 8435 FormatStyle NoSpace = getLLVMStyle(); 8436 NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never; 8437 8438 verifyFormat("while(true)\n" 8439 " continue;", 8440 NoSpace); 8441 verifyFormat("for(;;)\n" 8442 " continue;", 8443 NoSpace); 8444 verifyFormat("if(true)\n" 8445 " f();\n" 8446 "else if(true)\n" 8447 " f();", 8448 NoSpace); 8449 verifyFormat("do {\n" 8450 " do_something();\n" 8451 "} while(something());", 8452 NoSpace); 8453 verifyFormat("switch(x) {\n" 8454 "default:\n" 8455 " break;\n" 8456 "}", 8457 NoSpace); 8458 verifyFormat("auto i = std::make_unique<int>(5);", NoSpace); 8459 verifyFormat("size_t x = sizeof(x);", NoSpace); 8460 verifyFormat("auto f(int x) -> decltype(x);", NoSpace); 8461 verifyFormat("int f(T x) noexcept(x.create());", NoSpace); 8462 verifyFormat("alignas(128) char a[128];", NoSpace); 8463 verifyFormat("size_t x = alignof(MyType);", NoSpace); 8464 verifyFormat("static_assert(sizeof(char) == 1, \"Impossible!\");", NoSpace); 8465 verifyFormat("int f() throw(Deprecated);", NoSpace); 8466 verifyFormat("typedef void (*cb)(int);", NoSpace); 8467 verifyFormat("T A::operator()();", NoSpace); 8468 verifyFormat("X A::operator++(T);", NoSpace); 8469 8470 FormatStyle Space = getLLVMStyle(); 8471 Space.SpaceBeforeParens = FormatStyle::SBPO_Always; 8472 8473 verifyFormat("int f ();", Space); 8474 verifyFormat("void f (int a, T b) {\n" 8475 " while (true)\n" 8476 " continue;\n" 8477 "}", 8478 Space); 8479 verifyFormat("if (true)\n" 8480 " f ();\n" 8481 "else if (true)\n" 8482 " f ();", 8483 Space); 8484 verifyFormat("do {\n" 8485 " do_something ();\n" 8486 "} while (something ());", 8487 Space); 8488 verifyFormat("switch (x) {\n" 8489 "default:\n" 8490 " break;\n" 8491 "}", 8492 Space); 8493 verifyFormat("A::A () : a (1) {}", Space); 8494 verifyFormat("void f () __attribute__ ((asdf));", Space); 8495 verifyFormat("*(&a + 1);\n" 8496 "&((&a)[1]);\n" 8497 "a[(b + c) * d];\n" 8498 "(((a + 1) * 2) + 3) * 4;", 8499 Space); 8500 verifyFormat("#define A(x) x", Space); 8501 verifyFormat("#define A (x) x", Space); 8502 verifyFormat("#if defined(x)\n" 8503 "#endif", 8504 Space); 8505 verifyFormat("auto i = std::make_unique<int> (5);", Space); 8506 verifyFormat("size_t x = sizeof (x);", Space); 8507 verifyFormat("auto f (int x) -> decltype (x);", Space); 8508 verifyFormat("int f (T x) noexcept (x.create ());", Space); 8509 verifyFormat("alignas (128) char a[128];", Space); 8510 verifyFormat("size_t x = alignof (MyType);", Space); 8511 verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");", Space); 8512 verifyFormat("int f () throw (Deprecated);", Space); 8513 verifyFormat("typedef void (*cb) (int);", Space); 8514 verifyFormat("T A::operator() ();", Space); 8515 verifyFormat("X A::operator++ (T);", Space); 8516 } 8517 8518 TEST_F(FormatTest, ConfigurableSpacesInParentheses) { 8519 FormatStyle Spaces = getLLVMStyle(); 8520 8521 Spaces.SpacesInParentheses = true; 8522 verifyFormat("call( x, y, z );", Spaces); 8523 verifyFormat("call();", Spaces); 8524 verifyFormat("std::function<void( int, int )> callback;", Spaces); 8525 verifyFormat("void inFunction() { std::function<void( int, int )> fct; }", 8526 Spaces); 8527 verifyFormat("while ( (bool)1 )\n" 8528 " continue;", 8529 Spaces); 8530 verifyFormat("for ( ;; )\n" 8531 " continue;", 8532 Spaces); 8533 verifyFormat("if ( true )\n" 8534 " f();\n" 8535 "else if ( true )\n" 8536 " f();", 8537 Spaces); 8538 verifyFormat("do {\n" 8539 " do_something( (int)i );\n" 8540 "} while ( something() );", 8541 Spaces); 8542 verifyFormat("switch ( x ) {\n" 8543 "default:\n" 8544 " break;\n" 8545 "}", 8546 Spaces); 8547 8548 Spaces.SpacesInParentheses = false; 8549 Spaces.SpacesInCStyleCastParentheses = true; 8550 verifyFormat("Type *A = ( Type * )P;", Spaces); 8551 verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces); 8552 verifyFormat("x = ( int32 )y;", Spaces); 8553 verifyFormat("int a = ( int )(2.0f);", Spaces); 8554 verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces); 8555 verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces); 8556 verifyFormat("#define x (( int )-1)", Spaces); 8557 8558 // Run the first set of tests again with: 8559 Spaces.SpacesInParentheses = false, Spaces.SpaceInEmptyParentheses = true; 8560 Spaces.SpacesInCStyleCastParentheses = true; 8561 verifyFormat("call(x, y, z);", Spaces); 8562 verifyFormat("call( );", Spaces); 8563 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8564 verifyFormat("while (( bool )1)\n" 8565 " continue;", 8566 Spaces); 8567 verifyFormat("for (;;)\n" 8568 " continue;", 8569 Spaces); 8570 verifyFormat("if (true)\n" 8571 " f( );\n" 8572 "else if (true)\n" 8573 " f( );", 8574 Spaces); 8575 verifyFormat("do {\n" 8576 " do_something(( int )i);\n" 8577 "} while (something( ));", 8578 Spaces); 8579 verifyFormat("switch (x) {\n" 8580 "default:\n" 8581 " break;\n" 8582 "}", 8583 Spaces); 8584 8585 // Run the first set of tests again with: 8586 Spaces.SpaceAfterCStyleCast = true; 8587 verifyFormat("call(x, y, z);", Spaces); 8588 verifyFormat("call( );", Spaces); 8589 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8590 verifyFormat("while (( bool ) 1)\n" 8591 " continue;", 8592 Spaces); 8593 verifyFormat("for (;;)\n" 8594 " continue;", 8595 Spaces); 8596 verifyFormat("if (true)\n" 8597 " f( );\n" 8598 "else if (true)\n" 8599 " f( );", 8600 Spaces); 8601 verifyFormat("do {\n" 8602 " do_something(( int ) i);\n" 8603 "} while (something( ));", 8604 Spaces); 8605 verifyFormat("switch (x) {\n" 8606 "default:\n" 8607 " break;\n" 8608 "}", 8609 Spaces); 8610 8611 // Run subset of tests again with: 8612 Spaces.SpacesInCStyleCastParentheses = false; 8613 Spaces.SpaceAfterCStyleCast = true; 8614 verifyFormat("while ((bool) 1)\n" 8615 " continue;", 8616 Spaces); 8617 verifyFormat("do {\n" 8618 " do_something((int) i);\n" 8619 "} while (something( ));", 8620 Spaces); 8621 } 8622 8623 TEST_F(FormatTest, ConfigurableSpacesInSquareBrackets) { 8624 verifyFormat("int a[5];"); 8625 verifyFormat("a[3] += 42;"); 8626 8627 FormatStyle Spaces = getLLVMStyle(); 8628 Spaces.SpacesInSquareBrackets = true; 8629 // Lambdas unchanged. 8630 verifyFormat("int c = []() -> int { return 2; }();\n", Spaces); 8631 verifyFormat("return [i, args...] {};", Spaces); 8632 8633 // Not lambdas. 8634 verifyFormat("int a[ 5 ];", Spaces); 8635 verifyFormat("a[ 3 ] += 42;", Spaces); 8636 verifyFormat("constexpr char hello[]{\"hello\"};", Spaces); 8637 verifyFormat("double &operator[](int i) { return 0; }\n" 8638 "int i;", 8639 Spaces); 8640 verifyFormat("std::unique_ptr<int[]> foo() {}", Spaces); 8641 verifyFormat("int i = a[ a ][ a ]->f();", Spaces); 8642 verifyFormat("int i = (*b)[ a ]->f();", Spaces); 8643 } 8644 8645 TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) { 8646 verifyFormat("int a = 5;"); 8647 verifyFormat("a += 42;"); 8648 verifyFormat("a or_eq 8;"); 8649 8650 FormatStyle Spaces = getLLVMStyle(); 8651 Spaces.SpaceBeforeAssignmentOperators = false; 8652 verifyFormat("int a= 5;", Spaces); 8653 verifyFormat("a+= 42;", Spaces); 8654 verifyFormat("a or_eq 8;", Spaces); 8655 } 8656 8657 TEST_F(FormatTest, AlignConsecutiveAssignments) { 8658 FormatStyle Alignment = getLLVMStyle(); 8659 Alignment.AlignConsecutiveAssignments = false; 8660 verifyFormat("int a = 5;\n" 8661 "int oneTwoThree = 123;", 8662 Alignment); 8663 verifyFormat("int a = 5;\n" 8664 "int oneTwoThree = 123;", 8665 Alignment); 8666 8667 Alignment.AlignConsecutiveAssignments = true; 8668 verifyFormat("int a = 5;\n" 8669 "int oneTwoThree = 123;", 8670 Alignment); 8671 verifyFormat("int a = method();\n" 8672 "int oneTwoThree = 133;", 8673 Alignment); 8674 verifyFormat("a &= 5;\n" 8675 "bcd *= 5;\n" 8676 "ghtyf += 5;\n" 8677 "dvfvdb -= 5;\n" 8678 "a /= 5;\n" 8679 "vdsvsv %= 5;\n" 8680 "sfdbddfbdfbb ^= 5;\n" 8681 "dvsdsv |= 5;\n" 8682 "int dsvvdvsdvvv = 123;", 8683 Alignment); 8684 verifyFormat("int i = 1, j = 10;\n" 8685 "something = 2000;", 8686 Alignment); 8687 verifyFormat("something = 2000;\n" 8688 "int i = 1, j = 10;\n", 8689 Alignment); 8690 verifyFormat("something = 2000;\n" 8691 "another = 911;\n" 8692 "int i = 1, j = 10;\n" 8693 "oneMore = 1;\n" 8694 "i = 2;", 8695 Alignment); 8696 verifyFormat("int a = 5;\n" 8697 "int one = 1;\n" 8698 "method();\n" 8699 "int oneTwoThree = 123;\n" 8700 "int oneTwo = 12;", 8701 Alignment); 8702 verifyFormat("int oneTwoThree = 123;\n" 8703 "int oneTwo = 12;\n" 8704 "method();\n", 8705 Alignment); 8706 verifyFormat("int oneTwoThree = 123; // comment\n" 8707 "int oneTwo = 12; // comment", 8708 Alignment); 8709 EXPECT_EQ("int a = 5;\n" 8710 "\n" 8711 "int oneTwoThree = 123;", 8712 format("int a = 5;\n" 8713 "\n" 8714 "int oneTwoThree= 123;", 8715 Alignment)); 8716 EXPECT_EQ("int a = 5;\n" 8717 "int one = 1;\n" 8718 "\n" 8719 "int oneTwoThree = 123;", 8720 format("int a = 5;\n" 8721 "int one = 1;\n" 8722 "\n" 8723 "int oneTwoThree = 123;", 8724 Alignment)); 8725 EXPECT_EQ("int a = 5;\n" 8726 "int one = 1;\n" 8727 "\n" 8728 "int oneTwoThree = 123;\n" 8729 "int oneTwo = 12;", 8730 format("int a = 5;\n" 8731 "int one = 1;\n" 8732 "\n" 8733 "int oneTwoThree = 123;\n" 8734 "int oneTwo = 12;", 8735 Alignment)); 8736 Alignment.AlignEscapedNewlinesLeft = true; 8737 verifyFormat("#define A \\\n" 8738 " int aaaa = 12; \\\n" 8739 " int b = 23; \\\n" 8740 " int ccc = 234; \\\n" 8741 " int dddddddddd = 2345;", 8742 Alignment); 8743 Alignment.AlignEscapedNewlinesLeft = false; 8744 verifyFormat("#define A " 8745 " \\\n" 8746 " int aaaa = 12; " 8747 " \\\n" 8748 " int b = 23; " 8749 " \\\n" 8750 " int ccc = 234; " 8751 " \\\n" 8752 " int dddddddddd = 2345;", 8753 Alignment); 8754 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8755 "k = 4, int l = 5,\n" 8756 " int m = 6) {\n" 8757 " int j = 10;\n" 8758 " otherThing = 1;\n" 8759 "}", 8760 Alignment); 8761 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8762 " int i = 1;\n" 8763 " int j = 2;\n" 8764 " int big = 10000;\n" 8765 "}", 8766 Alignment); 8767 verifyFormat("class C {\n" 8768 "public:\n" 8769 " int i = 1;\n" 8770 " virtual void f() = 0;\n" 8771 "};", 8772 Alignment); 8773 verifyFormat("int i = 1;\n" 8774 "if (SomeType t = getSomething()) {\n" 8775 "}\n" 8776 "int j = 2;\n" 8777 "int big = 10000;", 8778 Alignment); 8779 verifyFormat("int j = 7;\n" 8780 "for (int k = 0; k < N; ++k) {\n" 8781 "}\n" 8782 "int j = 2;\n" 8783 "int big = 10000;\n" 8784 "}", 8785 Alignment); 8786 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8787 verifyFormat("int i = 1;\n" 8788 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8789 " = someLooooooooooooooooongFunction();\n" 8790 "int j = 2;", 8791 Alignment); 8792 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8793 verifyFormat("int i = 1;\n" 8794 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8795 " someLooooooooooooooooongFunction();\n" 8796 "int j = 2;", 8797 Alignment); 8798 8799 verifyFormat("auto lambda = []() {\n" 8800 " auto i = 0;\n" 8801 " return 0;\n" 8802 "};\n" 8803 "int i = 0;\n" 8804 "auto v = type{\n" 8805 " i = 1, //\n" 8806 " (i = 2), //\n" 8807 " i = 3 //\n" 8808 "};", 8809 Alignment); 8810 8811 // FIXME: Should align all three assignments 8812 verifyFormat( 8813 "int i = 1;\n" 8814 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 8815 " loooooooooooooooooooooongParameterB);\n" 8816 "int j = 2;", 8817 Alignment); 8818 8819 verifyFormat("template <typename T, typename T_0 = very_long_type_name_0,\n" 8820 " typename B = very_long_type_name_1,\n" 8821 " typename T_2 = very_long_type_name_2>\n" 8822 "auto foo() {}\n", 8823 Alignment); 8824 verifyFormat("int a, b = 1;\n" 8825 "int c = 2;\n" 8826 "int dd = 3;\n", 8827 Alignment); 8828 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 8829 "float b[1][] = {{3.f}};\n", 8830 Alignment); 8831 } 8832 8833 TEST_F(FormatTest, AlignConsecutiveDeclarations) { 8834 FormatStyle Alignment = getLLVMStyle(); 8835 Alignment.AlignConsecutiveDeclarations = false; 8836 verifyFormat("float const a = 5;\n" 8837 "int oneTwoThree = 123;", 8838 Alignment); 8839 verifyFormat("int a = 5;\n" 8840 "float const oneTwoThree = 123;", 8841 Alignment); 8842 8843 Alignment.AlignConsecutiveDeclarations = true; 8844 verifyFormat("float const a = 5;\n" 8845 "int oneTwoThree = 123;", 8846 Alignment); 8847 verifyFormat("int a = method();\n" 8848 "float const oneTwoThree = 133;", 8849 Alignment); 8850 verifyFormat("int i = 1, j = 10;\n" 8851 "something = 2000;", 8852 Alignment); 8853 verifyFormat("something = 2000;\n" 8854 "int i = 1, j = 10;\n", 8855 Alignment); 8856 verifyFormat("float something = 2000;\n" 8857 "double another = 911;\n" 8858 "int i = 1, j = 10;\n" 8859 "const int *oneMore = 1;\n" 8860 "unsigned i = 2;", 8861 Alignment); 8862 verifyFormat("float a = 5;\n" 8863 "int one = 1;\n" 8864 "method();\n" 8865 "const double oneTwoThree = 123;\n" 8866 "const unsigned int oneTwo = 12;", 8867 Alignment); 8868 verifyFormat("int oneTwoThree{0}; // comment\n" 8869 "unsigned oneTwo; // comment", 8870 Alignment); 8871 EXPECT_EQ("float const a = 5;\n" 8872 "\n" 8873 "int oneTwoThree = 123;", 8874 format("float const a = 5;\n" 8875 "\n" 8876 "int oneTwoThree= 123;", 8877 Alignment)); 8878 EXPECT_EQ("float a = 5;\n" 8879 "int one = 1;\n" 8880 "\n" 8881 "unsigned oneTwoThree = 123;", 8882 format("float a = 5;\n" 8883 "int one = 1;\n" 8884 "\n" 8885 "unsigned oneTwoThree = 123;", 8886 Alignment)); 8887 EXPECT_EQ("float a = 5;\n" 8888 "int one = 1;\n" 8889 "\n" 8890 "unsigned oneTwoThree = 123;\n" 8891 "int oneTwo = 12;", 8892 format("float a = 5;\n" 8893 "int one = 1;\n" 8894 "\n" 8895 "unsigned oneTwoThree = 123;\n" 8896 "int oneTwo = 12;", 8897 Alignment)); 8898 Alignment.AlignConsecutiveAssignments = true; 8899 verifyFormat("float something = 2000;\n" 8900 "double another = 911;\n" 8901 "int i = 1, j = 10;\n" 8902 "const int *oneMore = 1;\n" 8903 "unsigned i = 2;", 8904 Alignment); 8905 verifyFormat("int oneTwoThree = {0}; // comment\n" 8906 "unsigned oneTwo = 0; // comment", 8907 Alignment); 8908 EXPECT_EQ("void SomeFunction(int parameter = 0) {\n" 8909 " int const i = 1;\n" 8910 " int * j = 2;\n" 8911 " int big = 10000;\n" 8912 "\n" 8913 " unsigned oneTwoThree = 123;\n" 8914 " int oneTwo = 12;\n" 8915 " method();\n" 8916 " float k = 2;\n" 8917 " int ll = 10000;\n" 8918 "}", 8919 format("void SomeFunction(int parameter= 0) {\n" 8920 " int const i= 1;\n" 8921 " int *j=2;\n" 8922 " int big = 10000;\n" 8923 "\n" 8924 "unsigned oneTwoThree =123;\n" 8925 "int oneTwo = 12;\n" 8926 " method();\n" 8927 "float k= 2;\n" 8928 "int ll=10000;\n" 8929 "}", 8930 Alignment)); 8931 Alignment.AlignConsecutiveAssignments = false; 8932 Alignment.AlignEscapedNewlinesLeft = true; 8933 verifyFormat("#define A \\\n" 8934 " int aaaa = 12; \\\n" 8935 " float b = 23; \\\n" 8936 " const int ccc = 234; \\\n" 8937 " unsigned dddddddddd = 2345;", 8938 Alignment); 8939 Alignment.AlignEscapedNewlinesLeft = false; 8940 Alignment.ColumnLimit = 30; 8941 verifyFormat("#define A \\\n" 8942 " int aaaa = 12; \\\n" 8943 " float b = 23; \\\n" 8944 " const int ccc = 234; \\\n" 8945 " int dddddddddd = 2345;", 8946 Alignment); 8947 Alignment.ColumnLimit = 80; 8948 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8949 "k = 4, int l = 5,\n" 8950 " int m = 6) {\n" 8951 " const int j = 10;\n" 8952 " otherThing = 1;\n" 8953 "}", 8954 Alignment); 8955 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8956 " int const i = 1;\n" 8957 " int * j = 2;\n" 8958 " int big = 10000;\n" 8959 "}", 8960 Alignment); 8961 verifyFormat("class C {\n" 8962 "public:\n" 8963 " int i = 1;\n" 8964 " virtual void f() = 0;\n" 8965 "};", 8966 Alignment); 8967 verifyFormat("float i = 1;\n" 8968 "if (SomeType t = getSomething()) {\n" 8969 "}\n" 8970 "const unsigned j = 2;\n" 8971 "int big = 10000;", 8972 Alignment); 8973 verifyFormat("float j = 7;\n" 8974 "for (int k = 0; k < N; ++k) {\n" 8975 "}\n" 8976 "unsigned j = 2;\n" 8977 "int big = 10000;\n" 8978 "}", 8979 Alignment); 8980 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8981 verifyFormat("float i = 1;\n" 8982 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8983 " = someLooooooooooooooooongFunction();\n" 8984 "int j = 2;", 8985 Alignment); 8986 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8987 verifyFormat("int i = 1;\n" 8988 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8989 " someLooooooooooooooooongFunction();\n" 8990 "int j = 2;", 8991 Alignment); 8992 8993 Alignment.AlignConsecutiveAssignments = true; 8994 verifyFormat("auto lambda = []() {\n" 8995 " auto ii = 0;\n" 8996 " float j = 0;\n" 8997 " return 0;\n" 8998 "};\n" 8999 "int i = 0;\n" 9000 "float i2 = 0;\n" 9001 "auto v = type{\n" 9002 " i = 1, //\n" 9003 " (i = 2), //\n" 9004 " i = 3 //\n" 9005 "};", 9006 Alignment); 9007 Alignment.AlignConsecutiveAssignments = false; 9008 9009 // FIXME: Should align all three declarations 9010 verifyFormat( 9011 "int i = 1;\n" 9012 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 9013 " loooooooooooooooooooooongParameterB);\n" 9014 "int j = 2;", 9015 Alignment); 9016 9017 // Test interactions with ColumnLimit and AlignConsecutiveAssignments: 9018 // We expect declarations and assignments to align, as long as it doesn't 9019 // exceed the column limit, starting a new alignemnt sequence whenever it 9020 // happens. 9021 Alignment.AlignConsecutiveAssignments = true; 9022 Alignment.ColumnLimit = 30; 9023 verifyFormat("float ii = 1;\n" 9024 "unsigned j = 2;\n" 9025 "int someVerylongVariable = 1;\n" 9026 "AnotherLongType ll = 123456;\n" 9027 "VeryVeryLongType k = 2;\n" 9028 "int myvar = 1;", 9029 Alignment); 9030 Alignment.ColumnLimit = 80; 9031 Alignment.AlignConsecutiveAssignments = false; 9032 9033 verifyFormat( 9034 "template <typename LongTemplate, typename VeryLongTemplateTypeName,\n" 9035 " typename LongType, typename B>\n" 9036 "auto foo() {}\n", 9037 Alignment); 9038 verifyFormat("float a, b = 1;\n" 9039 "int c = 2;\n" 9040 "int dd = 3;\n", 9041 Alignment); 9042 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 9043 "float b[1][] = {{3.f}};\n", 9044 Alignment); 9045 Alignment.AlignConsecutiveAssignments = true; 9046 verifyFormat("float a, b = 1;\n" 9047 "int c = 2;\n" 9048 "int dd = 3;\n", 9049 Alignment); 9050 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 9051 "float b[1][] = {{3.f}};\n", 9052 Alignment); 9053 Alignment.AlignConsecutiveAssignments = false; 9054 9055 Alignment.ColumnLimit = 30; 9056 Alignment.BinPackParameters = false; 9057 verifyFormat("void foo(float a,\n" 9058 " float b,\n" 9059 " int c,\n" 9060 " uint32_t *d) {\n" 9061 " int * e = 0;\n" 9062 " float f = 0;\n" 9063 " double g = 0;\n" 9064 "}\n" 9065 "void bar(ino_t a,\n" 9066 " int b,\n" 9067 " uint32_t *c,\n" 9068 " bool d) {}\n", 9069 Alignment); 9070 Alignment.BinPackParameters = true; 9071 Alignment.ColumnLimit = 80; 9072 } 9073 9074 TEST_F(FormatTest, LinuxBraceBreaking) { 9075 FormatStyle LinuxBraceStyle = getLLVMStyle(); 9076 LinuxBraceStyle.BreakBeforeBraces = FormatStyle::BS_Linux; 9077 verifyFormat("namespace a\n" 9078 "{\n" 9079 "class A\n" 9080 "{\n" 9081 " void f()\n" 9082 " {\n" 9083 " if (true) {\n" 9084 " a();\n" 9085 " b();\n" 9086 " } else {\n" 9087 " a();\n" 9088 " }\n" 9089 " }\n" 9090 " void g() { return; }\n" 9091 "};\n" 9092 "struct B {\n" 9093 " int x;\n" 9094 "};\n" 9095 "}\n", 9096 LinuxBraceStyle); 9097 verifyFormat("enum X {\n" 9098 " Y = 0,\n" 9099 "}\n", 9100 LinuxBraceStyle); 9101 verifyFormat("struct S {\n" 9102 " int Type;\n" 9103 " union {\n" 9104 " int x;\n" 9105 " double y;\n" 9106 " } Value;\n" 9107 " class C\n" 9108 " {\n" 9109 " MyFavoriteType Value;\n" 9110 " } Class;\n" 9111 "}\n", 9112 LinuxBraceStyle); 9113 } 9114 9115 TEST_F(FormatTest, MozillaBraceBreaking) { 9116 FormatStyle MozillaBraceStyle = getLLVMStyle(); 9117 MozillaBraceStyle.BreakBeforeBraces = FormatStyle::BS_Mozilla; 9118 verifyFormat("namespace a {\n" 9119 "class A\n" 9120 "{\n" 9121 " void f()\n" 9122 " {\n" 9123 " if (true) {\n" 9124 " a();\n" 9125 " b();\n" 9126 " }\n" 9127 " }\n" 9128 " void g() { return; }\n" 9129 "};\n" 9130 "enum E\n" 9131 "{\n" 9132 " A,\n" 9133 " // foo\n" 9134 " B,\n" 9135 " C\n" 9136 "};\n" 9137 "struct B\n" 9138 "{\n" 9139 " int x;\n" 9140 "};\n" 9141 "}\n", 9142 MozillaBraceStyle); 9143 verifyFormat("struct S\n" 9144 "{\n" 9145 " int Type;\n" 9146 " union\n" 9147 " {\n" 9148 " int x;\n" 9149 " double y;\n" 9150 " } Value;\n" 9151 " class C\n" 9152 " {\n" 9153 " MyFavoriteType Value;\n" 9154 " } Class;\n" 9155 "}\n", 9156 MozillaBraceStyle); 9157 } 9158 9159 TEST_F(FormatTest, StroustrupBraceBreaking) { 9160 FormatStyle StroustrupBraceStyle = getLLVMStyle(); 9161 StroustrupBraceStyle.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9162 verifyFormat("namespace a {\n" 9163 "class A {\n" 9164 " void f()\n" 9165 " {\n" 9166 " if (true) {\n" 9167 " a();\n" 9168 " b();\n" 9169 " }\n" 9170 " }\n" 9171 " void g() { return; }\n" 9172 "};\n" 9173 "struct B {\n" 9174 " int x;\n" 9175 "};\n" 9176 "}\n", 9177 StroustrupBraceStyle); 9178 9179 verifyFormat("void foo()\n" 9180 "{\n" 9181 " if (a) {\n" 9182 " a();\n" 9183 " }\n" 9184 " else {\n" 9185 " b();\n" 9186 " }\n" 9187 "}\n", 9188 StroustrupBraceStyle); 9189 9190 verifyFormat("#ifdef _DEBUG\n" 9191 "int foo(int i = 0)\n" 9192 "#else\n" 9193 "int foo(int i = 5)\n" 9194 "#endif\n" 9195 "{\n" 9196 " return i;\n" 9197 "}", 9198 StroustrupBraceStyle); 9199 9200 verifyFormat("void foo() {}\n" 9201 "void bar()\n" 9202 "#ifdef _DEBUG\n" 9203 "{\n" 9204 " foo();\n" 9205 "}\n" 9206 "#else\n" 9207 "{\n" 9208 "}\n" 9209 "#endif", 9210 StroustrupBraceStyle); 9211 9212 verifyFormat("void foobar() { int i = 5; }\n" 9213 "#ifdef _DEBUG\n" 9214 "void bar() {}\n" 9215 "#else\n" 9216 "void bar() { foobar(); }\n" 9217 "#endif", 9218 StroustrupBraceStyle); 9219 } 9220 9221 TEST_F(FormatTest, AllmanBraceBreaking) { 9222 FormatStyle AllmanBraceStyle = getLLVMStyle(); 9223 AllmanBraceStyle.BreakBeforeBraces = FormatStyle::BS_Allman; 9224 verifyFormat("namespace a\n" 9225 "{\n" 9226 "class A\n" 9227 "{\n" 9228 " void f()\n" 9229 " {\n" 9230 " if (true)\n" 9231 " {\n" 9232 " a();\n" 9233 " b();\n" 9234 " }\n" 9235 " }\n" 9236 " void g() { return; }\n" 9237 "};\n" 9238 "struct B\n" 9239 "{\n" 9240 " int x;\n" 9241 "};\n" 9242 "}", 9243 AllmanBraceStyle); 9244 9245 verifyFormat("void f()\n" 9246 "{\n" 9247 " if (true)\n" 9248 " {\n" 9249 " a();\n" 9250 " }\n" 9251 " else if (false)\n" 9252 " {\n" 9253 " b();\n" 9254 " }\n" 9255 " else\n" 9256 " {\n" 9257 " c();\n" 9258 " }\n" 9259 "}\n", 9260 AllmanBraceStyle); 9261 9262 verifyFormat("void f()\n" 9263 "{\n" 9264 " for (int i = 0; i < 10; ++i)\n" 9265 " {\n" 9266 " a();\n" 9267 " }\n" 9268 " while (false)\n" 9269 " {\n" 9270 " b();\n" 9271 " }\n" 9272 " do\n" 9273 " {\n" 9274 " c();\n" 9275 " } while (false)\n" 9276 "}\n", 9277 AllmanBraceStyle); 9278 9279 verifyFormat("void f(int a)\n" 9280 "{\n" 9281 " switch (a)\n" 9282 " {\n" 9283 " case 0:\n" 9284 " break;\n" 9285 " case 1:\n" 9286 " {\n" 9287 " break;\n" 9288 " }\n" 9289 " case 2:\n" 9290 " {\n" 9291 " }\n" 9292 " break;\n" 9293 " default:\n" 9294 " break;\n" 9295 " }\n" 9296 "}\n", 9297 AllmanBraceStyle); 9298 9299 verifyFormat("enum X\n" 9300 "{\n" 9301 " Y = 0,\n" 9302 "}\n", 9303 AllmanBraceStyle); 9304 verifyFormat("enum X\n" 9305 "{\n" 9306 " Y = 0\n" 9307 "}\n", 9308 AllmanBraceStyle); 9309 9310 verifyFormat("@interface BSApplicationController ()\n" 9311 "{\n" 9312 "@private\n" 9313 " id _extraIvar;\n" 9314 "}\n" 9315 "@end\n", 9316 AllmanBraceStyle); 9317 9318 verifyFormat("#ifdef _DEBUG\n" 9319 "int foo(int i = 0)\n" 9320 "#else\n" 9321 "int foo(int i = 5)\n" 9322 "#endif\n" 9323 "{\n" 9324 " return i;\n" 9325 "}", 9326 AllmanBraceStyle); 9327 9328 verifyFormat("void foo() {}\n" 9329 "void bar()\n" 9330 "#ifdef _DEBUG\n" 9331 "{\n" 9332 " foo();\n" 9333 "}\n" 9334 "#else\n" 9335 "{\n" 9336 "}\n" 9337 "#endif", 9338 AllmanBraceStyle); 9339 9340 verifyFormat("void foobar() { int i = 5; }\n" 9341 "#ifdef _DEBUG\n" 9342 "void bar() {}\n" 9343 "#else\n" 9344 "void bar() { foobar(); }\n" 9345 "#endif", 9346 AllmanBraceStyle); 9347 9348 // This shouldn't affect ObjC blocks.. 9349 verifyFormat("[self doSomeThingWithACompletionHandler:^{\n" 9350 " // ...\n" 9351 " int i;\n" 9352 "}];", 9353 AllmanBraceStyle); 9354 verifyFormat("void (^block)(void) = ^{\n" 9355 " // ...\n" 9356 " int i;\n" 9357 "};", 9358 AllmanBraceStyle); 9359 // .. or dict literals. 9360 verifyFormat("void f()\n" 9361 "{\n" 9362 " [object someMethod:@{ @\"a\" : @\"b\" }];\n" 9363 "}", 9364 AllmanBraceStyle); 9365 verifyFormat("int f()\n" 9366 "{ // comment\n" 9367 " return 42;\n" 9368 "}", 9369 AllmanBraceStyle); 9370 9371 AllmanBraceStyle.ColumnLimit = 19; 9372 verifyFormat("void f() { int i; }", AllmanBraceStyle); 9373 AllmanBraceStyle.ColumnLimit = 18; 9374 verifyFormat("void f()\n" 9375 "{\n" 9376 " int i;\n" 9377 "}", 9378 AllmanBraceStyle); 9379 AllmanBraceStyle.ColumnLimit = 80; 9380 9381 FormatStyle BreakBeforeBraceShortIfs = AllmanBraceStyle; 9382 BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine = true; 9383 BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true; 9384 verifyFormat("void f(bool b)\n" 9385 "{\n" 9386 " if (b)\n" 9387 " {\n" 9388 " return;\n" 9389 " }\n" 9390 "}\n", 9391 BreakBeforeBraceShortIfs); 9392 verifyFormat("void f(bool b)\n" 9393 "{\n" 9394 " if (b) return;\n" 9395 "}\n", 9396 BreakBeforeBraceShortIfs); 9397 verifyFormat("void f(bool b)\n" 9398 "{\n" 9399 " while (b)\n" 9400 " {\n" 9401 " return;\n" 9402 " }\n" 9403 "}\n", 9404 BreakBeforeBraceShortIfs); 9405 } 9406 9407 TEST_F(FormatTest, GNUBraceBreaking) { 9408 FormatStyle GNUBraceStyle = getLLVMStyle(); 9409 GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU; 9410 verifyFormat("namespace a\n" 9411 "{\n" 9412 "class A\n" 9413 "{\n" 9414 " void f()\n" 9415 " {\n" 9416 " int a;\n" 9417 " {\n" 9418 " int b;\n" 9419 " }\n" 9420 " if (true)\n" 9421 " {\n" 9422 " a();\n" 9423 " b();\n" 9424 " }\n" 9425 " }\n" 9426 " void g() { return; }\n" 9427 "}\n" 9428 "}", 9429 GNUBraceStyle); 9430 9431 verifyFormat("void f()\n" 9432 "{\n" 9433 " if (true)\n" 9434 " {\n" 9435 " a();\n" 9436 " }\n" 9437 " else if (false)\n" 9438 " {\n" 9439 " b();\n" 9440 " }\n" 9441 " else\n" 9442 " {\n" 9443 " c();\n" 9444 " }\n" 9445 "}\n", 9446 GNUBraceStyle); 9447 9448 verifyFormat("void f()\n" 9449 "{\n" 9450 " for (int i = 0; i < 10; ++i)\n" 9451 " {\n" 9452 " a();\n" 9453 " }\n" 9454 " while (false)\n" 9455 " {\n" 9456 " b();\n" 9457 " }\n" 9458 " do\n" 9459 " {\n" 9460 " c();\n" 9461 " }\n" 9462 " while (false);\n" 9463 "}\n", 9464 GNUBraceStyle); 9465 9466 verifyFormat("void f(int a)\n" 9467 "{\n" 9468 " switch (a)\n" 9469 " {\n" 9470 " case 0:\n" 9471 " break;\n" 9472 " case 1:\n" 9473 " {\n" 9474 " break;\n" 9475 " }\n" 9476 " case 2:\n" 9477 " {\n" 9478 " }\n" 9479 " break;\n" 9480 " default:\n" 9481 " break;\n" 9482 " }\n" 9483 "}\n", 9484 GNUBraceStyle); 9485 9486 verifyFormat("enum X\n" 9487 "{\n" 9488 " Y = 0,\n" 9489 "}\n", 9490 GNUBraceStyle); 9491 9492 verifyFormat("@interface BSApplicationController ()\n" 9493 "{\n" 9494 "@private\n" 9495 " id _extraIvar;\n" 9496 "}\n" 9497 "@end\n", 9498 GNUBraceStyle); 9499 9500 verifyFormat("#ifdef _DEBUG\n" 9501 "int foo(int i = 0)\n" 9502 "#else\n" 9503 "int foo(int i = 5)\n" 9504 "#endif\n" 9505 "{\n" 9506 " return i;\n" 9507 "}", 9508 GNUBraceStyle); 9509 9510 verifyFormat("void foo() {}\n" 9511 "void bar()\n" 9512 "#ifdef _DEBUG\n" 9513 "{\n" 9514 " foo();\n" 9515 "}\n" 9516 "#else\n" 9517 "{\n" 9518 "}\n" 9519 "#endif", 9520 GNUBraceStyle); 9521 9522 verifyFormat("void foobar() { int i = 5; }\n" 9523 "#ifdef _DEBUG\n" 9524 "void bar() {}\n" 9525 "#else\n" 9526 "void bar() { foobar(); }\n" 9527 "#endif", 9528 GNUBraceStyle); 9529 } 9530 9531 TEST_F(FormatTest, WebKitBraceBreaking) { 9532 FormatStyle WebKitBraceStyle = getLLVMStyle(); 9533 WebKitBraceStyle.BreakBeforeBraces = FormatStyle::BS_WebKit; 9534 verifyFormat("namespace a {\n" 9535 "class A {\n" 9536 " void f()\n" 9537 " {\n" 9538 " if (true) {\n" 9539 " a();\n" 9540 " b();\n" 9541 " }\n" 9542 " }\n" 9543 " void g() { return; }\n" 9544 "};\n" 9545 "enum E {\n" 9546 " A,\n" 9547 " // foo\n" 9548 " B,\n" 9549 " C\n" 9550 "};\n" 9551 "struct B {\n" 9552 " int x;\n" 9553 "};\n" 9554 "}\n", 9555 WebKitBraceStyle); 9556 verifyFormat("struct S {\n" 9557 " int Type;\n" 9558 " union {\n" 9559 " int x;\n" 9560 " double y;\n" 9561 " } Value;\n" 9562 " class C {\n" 9563 " MyFavoriteType Value;\n" 9564 " } Class;\n" 9565 "};\n", 9566 WebKitBraceStyle); 9567 } 9568 9569 TEST_F(FormatTest, CatchExceptionReferenceBinding) { 9570 verifyFormat("void f() {\n" 9571 " try {\n" 9572 " } catch (const Exception &e) {\n" 9573 " }\n" 9574 "}\n", 9575 getLLVMStyle()); 9576 } 9577 9578 TEST_F(FormatTest, UnderstandsPragmas) { 9579 verifyFormat("#pragma omp reduction(| : var)"); 9580 verifyFormat("#pragma omp reduction(+ : var)"); 9581 9582 EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string " 9583 "(including parentheses).", 9584 format("#pragma mark Any non-hyphenated or hyphenated string " 9585 "(including parentheses).")); 9586 } 9587 9588 TEST_F(FormatTest, UnderstandPragmaOption) { 9589 verifyFormat("#pragma option -C -A"); 9590 9591 EXPECT_EQ("#pragma option -C -A", format("#pragma option -C -A")); 9592 } 9593 9594 #define EXPECT_ALL_STYLES_EQUAL(Styles) \ 9595 for (size_t i = 1; i < Styles.size(); ++i) \ 9596 EXPECT_EQ(Styles[0], Styles[i]) << "Style #" << i << " of " << Styles.size() \ 9597 << " differs from Style #0" 9598 9599 TEST_F(FormatTest, GetsPredefinedStyleByName) { 9600 SmallVector<FormatStyle, 3> Styles; 9601 Styles.resize(3); 9602 9603 Styles[0] = getLLVMStyle(); 9604 EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1])); 9605 EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2])); 9606 EXPECT_ALL_STYLES_EQUAL(Styles); 9607 9608 Styles[0] = getGoogleStyle(); 9609 EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1])); 9610 EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2])); 9611 EXPECT_ALL_STYLES_EQUAL(Styles); 9612 9613 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9614 EXPECT_TRUE( 9615 getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1])); 9616 EXPECT_TRUE( 9617 getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2])); 9618 EXPECT_ALL_STYLES_EQUAL(Styles); 9619 9620 Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp); 9621 EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1])); 9622 EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2])); 9623 EXPECT_ALL_STYLES_EQUAL(Styles); 9624 9625 Styles[0] = getMozillaStyle(); 9626 EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1])); 9627 EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2])); 9628 EXPECT_ALL_STYLES_EQUAL(Styles); 9629 9630 Styles[0] = getWebKitStyle(); 9631 EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1])); 9632 EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2])); 9633 EXPECT_ALL_STYLES_EQUAL(Styles); 9634 9635 Styles[0] = getGNUStyle(); 9636 EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1])); 9637 EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2])); 9638 EXPECT_ALL_STYLES_EQUAL(Styles); 9639 9640 EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0])); 9641 } 9642 9643 TEST_F(FormatTest, GetsCorrectBasedOnStyle) { 9644 SmallVector<FormatStyle, 8> Styles; 9645 Styles.resize(2); 9646 9647 Styles[0] = getGoogleStyle(); 9648 Styles[1] = getLLVMStyle(); 9649 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9650 EXPECT_ALL_STYLES_EQUAL(Styles); 9651 9652 Styles.resize(5); 9653 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9654 Styles[1] = getLLVMStyle(); 9655 Styles[1].Language = FormatStyle::LK_JavaScript; 9656 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9657 9658 Styles[2] = getLLVMStyle(); 9659 Styles[2].Language = FormatStyle::LK_JavaScript; 9660 EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n" 9661 "BasedOnStyle: Google", 9662 &Styles[2]) 9663 .value()); 9664 9665 Styles[3] = getLLVMStyle(); 9666 Styles[3].Language = FormatStyle::LK_JavaScript; 9667 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n" 9668 "Language: JavaScript", 9669 &Styles[3]) 9670 .value()); 9671 9672 Styles[4] = getLLVMStyle(); 9673 Styles[4].Language = FormatStyle::LK_JavaScript; 9674 EXPECT_EQ(0, parseConfiguration("---\n" 9675 "BasedOnStyle: LLVM\n" 9676 "IndentWidth: 123\n" 9677 "---\n" 9678 "BasedOnStyle: Google\n" 9679 "Language: JavaScript", 9680 &Styles[4]) 9681 .value()); 9682 EXPECT_ALL_STYLES_EQUAL(Styles); 9683 } 9684 9685 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME) \ 9686 Style.FIELD = false; \ 9687 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value()); \ 9688 EXPECT_TRUE(Style.FIELD); \ 9689 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value()); \ 9690 EXPECT_FALSE(Style.FIELD); 9691 9692 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD) 9693 9694 #define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME) \ 9695 Style.STRUCT.FIELD = false; \ 9696 EXPECT_EQ(0, \ 9697 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": true", &Style) \ 9698 .value()); \ 9699 EXPECT_TRUE(Style.STRUCT.FIELD); \ 9700 EXPECT_EQ(0, \ 9701 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": false", &Style) \ 9702 .value()); \ 9703 EXPECT_FALSE(Style.STRUCT.FIELD); 9704 9705 #define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD) \ 9706 CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD) 9707 9708 #define CHECK_PARSE(TEXT, FIELD, VALUE) \ 9709 EXPECT_NE(VALUE, Style.FIELD); \ 9710 EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \ 9711 EXPECT_EQ(VALUE, Style.FIELD) 9712 9713 TEST_F(FormatTest, ParsesConfigurationBools) { 9714 FormatStyle Style = {}; 9715 Style.Language = FormatStyle::LK_Cpp; 9716 CHECK_PARSE_BOOL(AlignEscapedNewlinesLeft); 9717 CHECK_PARSE_BOOL(AlignOperands); 9718 CHECK_PARSE_BOOL(AlignTrailingComments); 9719 CHECK_PARSE_BOOL(AlignConsecutiveAssignments); 9720 CHECK_PARSE_BOOL(AlignConsecutiveDeclarations); 9721 CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine); 9722 CHECK_PARSE_BOOL(AllowShortBlocksOnASingleLine); 9723 CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine); 9724 CHECK_PARSE_BOOL(AllowShortIfStatementsOnASingleLine); 9725 CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine); 9726 CHECK_PARSE_BOOL(AlwaysBreakTemplateDeclarations); 9727 CHECK_PARSE_BOOL(BinPackArguments); 9728 CHECK_PARSE_BOOL(BinPackParameters); 9729 CHECK_PARSE_BOOL(BreakBeforeTernaryOperators); 9730 CHECK_PARSE_BOOL(BreakConstructorInitializersBeforeComma); 9731 CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine); 9732 CHECK_PARSE_BOOL(DerivePointerAlignment); 9733 CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding"); 9734 CHECK_PARSE_BOOL(DisableFormat); 9735 CHECK_PARSE_BOOL(IndentCaseLabels); 9736 CHECK_PARSE_BOOL(IndentWrappedFunctionNames); 9737 CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks); 9738 CHECK_PARSE_BOOL(ObjCSpaceAfterProperty); 9739 CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList); 9740 CHECK_PARSE_BOOL(Cpp11BracedListStyle); 9741 CHECK_PARSE_BOOL(ReflowComments); 9742 CHECK_PARSE_BOOL(SortIncludes); 9743 CHECK_PARSE_BOOL(SpacesInParentheses); 9744 CHECK_PARSE_BOOL(SpacesInSquareBrackets); 9745 CHECK_PARSE_BOOL(SpacesInAngles); 9746 CHECK_PARSE_BOOL(SpaceInEmptyParentheses); 9747 CHECK_PARSE_BOOL(SpacesInContainerLiterals); 9748 CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses); 9749 CHECK_PARSE_BOOL(SpaceAfterCStyleCast); 9750 CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators); 9751 9752 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass); 9753 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterControlStatement); 9754 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum); 9755 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction); 9756 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace); 9757 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration); 9758 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct); 9759 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion); 9760 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch); 9761 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse); 9762 CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces); 9763 } 9764 9765 #undef CHECK_PARSE_BOOL 9766 9767 TEST_F(FormatTest, ParsesConfiguration) { 9768 FormatStyle Style = {}; 9769 Style.Language = FormatStyle::LK_Cpp; 9770 CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234); 9771 CHECK_PARSE("ConstructorInitializerIndentWidth: 1234", 9772 ConstructorInitializerIndentWidth, 1234u); 9773 CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u); 9774 CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u); 9775 CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u); 9776 CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234", 9777 PenaltyBreakBeforeFirstCallParameter, 1234u); 9778 CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u); 9779 CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234", 9780 PenaltyReturnTypeOnItsOwnLine, 1234u); 9781 CHECK_PARSE("SpacesBeforeTrailingComments: 1234", 9782 SpacesBeforeTrailingComments, 1234u); 9783 CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u); 9784 CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u); 9785 9786 Style.PointerAlignment = FormatStyle::PAS_Middle; 9787 CHECK_PARSE("PointerAlignment: Left", PointerAlignment, 9788 FormatStyle::PAS_Left); 9789 CHECK_PARSE("PointerAlignment: Right", PointerAlignment, 9790 FormatStyle::PAS_Right); 9791 CHECK_PARSE("PointerAlignment: Middle", PointerAlignment, 9792 FormatStyle::PAS_Middle); 9793 // For backward compatibility: 9794 CHECK_PARSE("PointerBindsToType: Left", PointerAlignment, 9795 FormatStyle::PAS_Left); 9796 CHECK_PARSE("PointerBindsToType: Right", PointerAlignment, 9797 FormatStyle::PAS_Right); 9798 CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment, 9799 FormatStyle::PAS_Middle); 9800 9801 Style.Standard = FormatStyle::LS_Auto; 9802 CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03); 9803 CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Cpp11); 9804 CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03); 9805 CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11); 9806 CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto); 9807 9808 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 9809 CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment", 9810 BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment); 9811 CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators, 9812 FormatStyle::BOS_None); 9813 CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators, 9814 FormatStyle::BOS_All); 9815 // For backward compatibility: 9816 CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators, 9817 FormatStyle::BOS_None); 9818 CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators, 9819 FormatStyle::BOS_All); 9820 9821 Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak; 9822 CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket, 9823 FormatStyle::BAS_Align); 9824 CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket, 9825 FormatStyle::BAS_DontAlign); 9826 CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket, 9827 FormatStyle::BAS_AlwaysBreak); 9828 // For backward compatibility: 9829 CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket, 9830 FormatStyle::BAS_DontAlign); 9831 CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket, 9832 FormatStyle::BAS_Align); 9833 9834 Style.UseTab = FormatStyle::UT_ForIndentation; 9835 CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never); 9836 CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation); 9837 CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always); 9838 // For backward compatibility: 9839 CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never); 9840 CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always); 9841 9842 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 9843 CHECK_PARSE("AllowShortFunctionsOnASingleLine: None", 9844 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9845 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline", 9846 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline); 9847 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty", 9848 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty); 9849 CHECK_PARSE("AllowShortFunctionsOnASingleLine: All", 9850 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9851 // For backward compatibility: 9852 CHECK_PARSE("AllowShortFunctionsOnASingleLine: false", 9853 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9854 CHECK_PARSE("AllowShortFunctionsOnASingleLine: true", 9855 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9856 9857 Style.SpaceBeforeParens = FormatStyle::SBPO_Always; 9858 CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens, 9859 FormatStyle::SBPO_Never); 9860 CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens, 9861 FormatStyle::SBPO_Always); 9862 CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens, 9863 FormatStyle::SBPO_ControlStatements); 9864 // For backward compatibility: 9865 CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens, 9866 FormatStyle::SBPO_Never); 9867 CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens, 9868 FormatStyle::SBPO_ControlStatements); 9869 9870 Style.ColumnLimit = 123; 9871 FormatStyle BaseStyle = getLLVMStyle(); 9872 CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit); 9873 CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u); 9874 9875 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9876 CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces, 9877 FormatStyle::BS_Attach); 9878 CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces, 9879 FormatStyle::BS_Linux); 9880 CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces, 9881 FormatStyle::BS_Mozilla); 9882 CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces, 9883 FormatStyle::BS_Stroustrup); 9884 CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces, 9885 FormatStyle::BS_Allman); 9886 CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU); 9887 CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces, 9888 FormatStyle::BS_WebKit); 9889 CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces, 9890 FormatStyle::BS_Custom); 9891 9892 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All; 9893 CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType, 9894 FormatStyle::RTBS_None); 9895 CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType, 9896 FormatStyle::RTBS_All); 9897 CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel", 9898 AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel); 9899 CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions", 9900 AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions); 9901 CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions", 9902 AlwaysBreakAfterReturnType, 9903 FormatStyle::RTBS_TopLevelDefinitions); 9904 9905 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 9906 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None", 9907 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None); 9908 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All", 9909 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All); 9910 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel", 9911 AlwaysBreakAfterDefinitionReturnType, 9912 FormatStyle::DRTBS_TopLevel); 9913 9914 Style.NamespaceIndentation = FormatStyle::NI_All; 9915 CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation, 9916 FormatStyle::NI_None); 9917 CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation, 9918 FormatStyle::NI_Inner); 9919 CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation, 9920 FormatStyle::NI_All); 9921 9922 // FIXME: This is required because parsing a configuration simply overwrites 9923 // the first N elements of the list instead of resetting it. 9924 Style.ForEachMacros.clear(); 9925 std::vector<std::string> BoostForeach; 9926 BoostForeach.push_back("BOOST_FOREACH"); 9927 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach); 9928 std::vector<std::string> BoostAndQForeach; 9929 BoostAndQForeach.push_back("BOOST_FOREACH"); 9930 BoostAndQForeach.push_back("Q_FOREACH"); 9931 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros, 9932 BoostAndQForeach); 9933 9934 Style.IncludeCategories.clear(); 9935 std::vector<FormatStyle::IncludeCategory> ExpectedCategories = {{"abc/.*", 2}, 9936 {".*", 1}}; 9937 CHECK_PARSE("IncludeCategories:\n" 9938 " - Regex: abc/.*\n" 9939 " Priority: 2\n" 9940 " - Regex: .*\n" 9941 " Priority: 1", 9942 IncludeCategories, ExpectedCategories); 9943 } 9944 9945 TEST_F(FormatTest, ParsesConfigurationWithLanguages) { 9946 FormatStyle Style = {}; 9947 Style.Language = FormatStyle::LK_Cpp; 9948 CHECK_PARSE("Language: Cpp\n" 9949 "IndentWidth: 12", 9950 IndentWidth, 12u); 9951 EXPECT_EQ(parseConfiguration("Language: JavaScript\n" 9952 "IndentWidth: 34", 9953 &Style), 9954 ParseError::Unsuitable); 9955 EXPECT_EQ(12u, Style.IndentWidth); 9956 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9957 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9958 9959 Style.Language = FormatStyle::LK_JavaScript; 9960 CHECK_PARSE("Language: JavaScript\n" 9961 "IndentWidth: 12", 9962 IndentWidth, 12u); 9963 CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u); 9964 EXPECT_EQ(parseConfiguration("Language: Cpp\n" 9965 "IndentWidth: 34", 9966 &Style), 9967 ParseError::Unsuitable); 9968 EXPECT_EQ(23u, Style.IndentWidth); 9969 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9970 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9971 9972 CHECK_PARSE("BasedOnStyle: LLVM\n" 9973 "IndentWidth: 67", 9974 IndentWidth, 67u); 9975 9976 CHECK_PARSE("---\n" 9977 "Language: JavaScript\n" 9978 "IndentWidth: 12\n" 9979 "---\n" 9980 "Language: Cpp\n" 9981 "IndentWidth: 34\n" 9982 "...\n", 9983 IndentWidth, 12u); 9984 9985 Style.Language = FormatStyle::LK_Cpp; 9986 CHECK_PARSE("---\n" 9987 "Language: JavaScript\n" 9988 "IndentWidth: 12\n" 9989 "---\n" 9990 "Language: Cpp\n" 9991 "IndentWidth: 34\n" 9992 "...\n", 9993 IndentWidth, 34u); 9994 CHECK_PARSE("---\n" 9995 "IndentWidth: 78\n" 9996 "---\n" 9997 "Language: JavaScript\n" 9998 "IndentWidth: 56\n" 9999 "...\n", 10000 IndentWidth, 78u); 10001 10002 Style.ColumnLimit = 123; 10003 Style.IndentWidth = 234; 10004 Style.BreakBeforeBraces = FormatStyle::BS_Linux; 10005 Style.TabWidth = 345; 10006 EXPECT_FALSE(parseConfiguration("---\n" 10007 "IndentWidth: 456\n" 10008 "BreakBeforeBraces: Allman\n" 10009 "---\n" 10010 "Language: JavaScript\n" 10011 "IndentWidth: 111\n" 10012 "TabWidth: 111\n" 10013 "---\n" 10014 "Language: Cpp\n" 10015 "BreakBeforeBraces: Stroustrup\n" 10016 "TabWidth: 789\n" 10017 "...\n", 10018 &Style)); 10019 EXPECT_EQ(123u, Style.ColumnLimit); 10020 EXPECT_EQ(456u, Style.IndentWidth); 10021 EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces); 10022 EXPECT_EQ(789u, Style.TabWidth); 10023 10024 EXPECT_EQ(parseConfiguration("---\n" 10025 "Language: JavaScript\n" 10026 "IndentWidth: 56\n" 10027 "---\n" 10028 "IndentWidth: 78\n" 10029 "...\n", 10030 &Style), 10031 ParseError::Error); 10032 EXPECT_EQ(parseConfiguration("---\n" 10033 "Language: JavaScript\n" 10034 "IndentWidth: 56\n" 10035 "---\n" 10036 "Language: JavaScript\n" 10037 "IndentWidth: 78\n" 10038 "...\n", 10039 &Style), 10040 ParseError::Error); 10041 10042 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 10043 } 10044 10045 #undef CHECK_PARSE 10046 10047 TEST_F(FormatTest, UsesLanguageForBasedOnStyle) { 10048 FormatStyle Style = {}; 10049 Style.Language = FormatStyle::LK_JavaScript; 10050 Style.BreakBeforeTernaryOperators = true; 10051 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value()); 10052 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 10053 10054 Style.BreakBeforeTernaryOperators = true; 10055 EXPECT_EQ(0, parseConfiguration("---\n" 10056 "BasedOnStyle: Google\n" 10057 "---\n" 10058 "Language: JavaScript\n" 10059 "IndentWidth: 76\n" 10060 "...\n", 10061 &Style) 10062 .value()); 10063 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 10064 EXPECT_EQ(76u, Style.IndentWidth); 10065 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 10066 } 10067 10068 TEST_F(FormatTest, ConfigurationRoundTripTest) { 10069 FormatStyle Style = getLLVMStyle(); 10070 std::string YAML = configurationAsText(Style); 10071 FormatStyle ParsedStyle = {}; 10072 ParsedStyle.Language = FormatStyle::LK_Cpp; 10073 EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value()); 10074 EXPECT_EQ(Style, ParsedStyle); 10075 } 10076 10077 TEST_F(FormatTest, WorksFor8bitEncodings) { 10078 EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n" 10079 "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n" 10080 "\"\xe7\xe8\xec\xed\xfe\xfe \"\n" 10081 "\"\xef\xee\xf0\xf3...\"", 10082 format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 " 10083 "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe " 10084 "\xef\xee\xf0\xf3...\"", 10085 getLLVMStyleWithColumns(12))); 10086 } 10087 10088 TEST_F(FormatTest, HandlesUTF8BOM) { 10089 EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf")); 10090 EXPECT_EQ("\xef\xbb\xbf#include <iostream>", 10091 format("\xef\xbb\xbf#include <iostream>")); 10092 EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>", 10093 format("\xef\xbb\xbf\n#include <iostream>")); 10094 } 10095 10096 // FIXME: Encode Cyrillic and CJK characters below to appease MS compilers. 10097 #if !defined(_MSC_VER) 10098 10099 TEST_F(FormatTest, CountsUTF8CharactersProperly) { 10100 verifyFormat("\" ...\"", 10101 getLLVMStyleWithColumns(35)); 10102 verifyFormat("\" \"", 10103 getLLVMStyleWithColumns(31)); 10104 verifyFormat("// ...", 10105 getLLVMStyleWithColumns(36)); 10106 verifyFormat("// ", getLLVMStyleWithColumns(32)); 10107 verifyFormat("/* ... */", 10108 getLLVMStyleWithColumns(39)); 10109 verifyFormat("/* */", 10110 getLLVMStyleWithColumns(35)); 10111 } 10112 10113 TEST_F(FormatTest, SplitsUTF8Strings) { 10114 // Non-printable characters' width is currently considered to be the length in 10115 // bytes in UTF8. The characters can be displayed in very different manner 10116 // (zero-width, single width with a substitution glyph, expanded to their code 10117 // (e.g. "<8d>"), so there's no single correct way to handle them. 10118 EXPECT_EQ("\"aaaa\"\n" 10119 "\"\xc2\x8d\";", 10120 format("\"aaaa\xc2\x8d\";", getLLVMStyleWithColumns(10))); 10121 EXPECT_EQ("\"aaaaaaa\"\n" 10122 "\"\xc2\x8d\";", 10123 format("\"aaaaaaa\xc2\x8d\";", getLLVMStyleWithColumns(10))); 10124 EXPECT_EQ("\", \"\n" 10125 "\" \"\n" 10126 "\" \"\n" 10127 "\",\"", 10128 format("\", ,\"", 10129 getLLVMStyleWithColumns(13))); 10130 EXPECT_EQ( 10131 "\" \"\n" 10132 "\" \"\n" 10133 "\" \"\n" 10134 "\"\"", 10135 format("\" \"", getLLVMStyleWithColumns(11))); 10136 EXPECT_EQ("\"\t \"\n" 10137 "\"\t \"\n" 10138 "\" \t \"\n" 10139 "\"\t \"\n" 10140 "\"\tqq\"", 10141 format("\"\t \t \t \t \tqq\"", 10142 getLLVMStyleWithColumns(11))); 10143 10144 // UTF8 character in an escape sequence. 10145 EXPECT_EQ("\"aaaaaa\"\n" 10146 "\"\\\xC2\x8D\"", 10147 format("\"aaaaaa\\\xC2\x8D\"", getLLVMStyleWithColumns(10))); 10148 } 10149 10150 TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) { 10151 EXPECT_EQ("const char *sssss =\n" 10152 " \"\\\n" 10153 " \";", 10154 format("const char *sssss = \"\\\n" 10155 " \";", 10156 getLLVMStyleWithColumns(30))); 10157 } 10158 10159 TEST_F(FormatTest, SplitsUTF8LineComments) { 10160 EXPECT_EQ("// aaaa\xc2\x8d", 10161 format("// aaaa\xc2\x8d", getLLVMStyleWithColumns(10))); 10162 EXPECT_EQ("// \n" 10163 "// ; \n" 10164 "// \n" 10165 "// .", 10166 format("// ; .", 10167 getLLVMStyleWithColumns(13))); 10168 EXPECT_EQ("// \n" 10169 "// \n" 10170 "// \n" 10171 "// ", 10172 format("// ", getLLVMStyleWithColumns(9))); 10173 } 10174 10175 TEST_F(FormatTest, SplitsUTF8BlockComments) { 10176 EXPECT_EQ("/* ,\n" 10177 " * \n" 10178 " * \n" 10179 " * \n" 10180 " * ,\n" 10181 " * \n" 10182 " * \n" 10183 " * . */", 10184 format("/* , \n" 10185 " * , . */", 10186 getLLVMStyleWithColumns(13))); 10187 EXPECT_EQ( 10188 "/* \n" 10189 " * \n" 10190 " * \n" 10191 " * */", 10192 format("/* */", getLLVMStyleWithColumns(9))); 10193 EXPECT_EQ("/* \n" 10194 " * \n" 10195 " * - */", 10196 format("/* - */", getLLVMStyleWithColumns(12))); 10197 } 10198 10199 #endif // _MSC_VER 10200 10201 TEST_F(FormatTest, ConstructorInitializerIndentWidth) { 10202 FormatStyle Style = getLLVMStyle(); 10203 10204 Style.ConstructorInitializerIndentWidth = 4; 10205 verifyFormat( 10206 "SomeClass::Constructor()\n" 10207 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10208 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10209 Style); 10210 10211 Style.ConstructorInitializerIndentWidth = 2; 10212 verifyFormat( 10213 "SomeClass::Constructor()\n" 10214 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10215 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10216 Style); 10217 10218 Style.ConstructorInitializerIndentWidth = 0; 10219 verifyFormat( 10220 "SomeClass::Constructor()\n" 10221 ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10222 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10223 Style); 10224 } 10225 10226 TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) { 10227 FormatStyle Style = getLLVMStyle(); 10228 Style.BreakConstructorInitializersBeforeComma = true; 10229 Style.ConstructorInitializerIndentWidth = 4; 10230 verifyFormat("SomeClass::Constructor()\n" 10231 " : a(a)\n" 10232 " , b(b)\n" 10233 " , c(c) {}", 10234 Style); 10235 verifyFormat("SomeClass::Constructor()\n" 10236 " : a(a) {}", 10237 Style); 10238 10239 Style.ColumnLimit = 0; 10240 verifyFormat("SomeClass::Constructor()\n" 10241 " : a(a) {}", 10242 Style); 10243 verifyFormat("SomeClass::Constructor()\n" 10244 " : a(a)\n" 10245 " , b(b)\n" 10246 " , c(c) {}", 10247 Style); 10248 verifyFormat("SomeClass::Constructor()\n" 10249 " : a(a) {\n" 10250 " foo();\n" 10251 " bar();\n" 10252 "}", 10253 Style); 10254 10255 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 10256 verifyFormat("SomeClass::Constructor()\n" 10257 " : a(a)\n" 10258 " , b(b)\n" 10259 " , c(c) {\n}", 10260 Style); 10261 verifyFormat("SomeClass::Constructor()\n" 10262 " : a(a) {\n}", 10263 Style); 10264 10265 Style.ColumnLimit = 80; 10266 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 10267 Style.ConstructorInitializerIndentWidth = 2; 10268 verifyFormat("SomeClass::Constructor()\n" 10269 " : a(a)\n" 10270 " , b(b)\n" 10271 " , c(c) {}", 10272 Style); 10273 10274 Style.ConstructorInitializerIndentWidth = 0; 10275 verifyFormat("SomeClass::Constructor()\n" 10276 ": a(a)\n" 10277 ", b(b)\n" 10278 ", c(c) {}", 10279 Style); 10280 10281 Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 10282 Style.ConstructorInitializerIndentWidth = 4; 10283 verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style); 10284 verifyFormat( 10285 "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n", 10286 Style); 10287 verifyFormat( 10288 "SomeClass::Constructor()\n" 10289 " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}", 10290 Style); 10291 Style.ConstructorInitializerIndentWidth = 4; 10292 Style.ColumnLimit = 60; 10293 verifyFormat("SomeClass::Constructor()\n" 10294 " : aaaaaaaa(aaaaaaaa)\n" 10295 " , aaaaaaaa(aaaaaaaa)\n" 10296 " , aaaaaaaa(aaaaaaaa) {}", 10297 Style); 10298 } 10299 10300 TEST_F(FormatTest, Destructors) { 10301 verifyFormat("void F(int &i) { i.~int(); }"); 10302 verifyFormat("void F(int &i) { i->~int(); }"); 10303 } 10304 10305 TEST_F(FormatTest, FormatsWithWebKitStyle) { 10306 FormatStyle Style = getWebKitStyle(); 10307 10308 // Don't indent in outer namespaces. 10309 verifyFormat("namespace outer {\n" 10310 "int i;\n" 10311 "namespace inner {\n" 10312 " int i;\n" 10313 "} // namespace inner\n" 10314 "} // namespace outer\n" 10315 "namespace other_outer {\n" 10316 "int i;\n" 10317 "}", 10318 Style); 10319 10320 // Don't indent case labels. 10321 verifyFormat("switch (variable) {\n" 10322 "case 1:\n" 10323 "case 2:\n" 10324 " doSomething();\n" 10325 " break;\n" 10326 "default:\n" 10327 " ++variable;\n" 10328 "}", 10329 Style); 10330 10331 // Wrap before binary operators. 10332 EXPECT_EQ("void f()\n" 10333 "{\n" 10334 " if (aaaaaaaaaaaaaaaa\n" 10335 " && bbbbbbbbbbbbbbbbbbbbbbbb\n" 10336 " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10337 " return;\n" 10338 "}", 10339 format("void f() {\n" 10340 "if (aaaaaaaaaaaaaaaa\n" 10341 "&& bbbbbbbbbbbbbbbbbbbbbbbb\n" 10342 "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10343 "return;\n" 10344 "}", 10345 Style)); 10346 10347 // Allow functions on a single line. 10348 verifyFormat("void f() { return; }", Style); 10349 10350 // Constructor initializers are formatted one per line with the "," on the 10351 // new line. 10352 verifyFormat("Constructor()\n" 10353 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 10354 " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n" 10355 " aaaaaaaaaaaaaa)\n" 10356 " , aaaaaaaaaaaaaaaaaaaaaaa()\n" 10357 "{\n" 10358 "}", 10359 Style); 10360 verifyFormat("SomeClass::Constructor()\n" 10361 " : a(a)\n" 10362 "{\n" 10363 "}", 10364 Style); 10365 EXPECT_EQ("SomeClass::Constructor()\n" 10366 " : a(a)\n" 10367 "{\n" 10368 "}", 10369 format("SomeClass::Constructor():a(a){}", Style)); 10370 verifyFormat("SomeClass::Constructor()\n" 10371 " : a(a)\n" 10372 " , b(b)\n" 10373 " , c(c)\n" 10374 "{\n" 10375 "}", 10376 Style); 10377 verifyFormat("SomeClass::Constructor()\n" 10378 " : a(a)\n" 10379 "{\n" 10380 " foo();\n" 10381 " bar();\n" 10382 "}", 10383 Style); 10384 10385 // Access specifiers should be aligned left. 10386 verifyFormat("class C {\n" 10387 "public:\n" 10388 " int i;\n" 10389 "};", 10390 Style); 10391 10392 // Do not align comments. 10393 verifyFormat("int a; // Do not\n" 10394 "double b; // align comments.", 10395 Style); 10396 10397 // Do not align operands. 10398 EXPECT_EQ("ASSERT(aaaa\n" 10399 " || bbbb);", 10400 format("ASSERT ( aaaa\n||bbbb);", Style)); 10401 10402 // Accept input's line breaks. 10403 EXPECT_EQ("if (aaaaaaaaaaaaaaa\n" 10404 " || bbbbbbbbbbbbbbb) {\n" 10405 " i++;\n" 10406 "}", 10407 format("if (aaaaaaaaaaaaaaa\n" 10408 "|| bbbbbbbbbbbbbbb) { i++; }", 10409 Style)); 10410 EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n" 10411 " i++;\n" 10412 "}", 10413 format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style)); 10414 10415 // Don't automatically break all macro definitions (llvm.org/PR17842). 10416 verifyFormat("#define aNumber 10", Style); 10417 // However, generally keep the line breaks that the user authored. 10418 EXPECT_EQ("#define aNumber \\\n" 10419 " 10", 10420 format("#define aNumber \\\n" 10421 " 10", 10422 Style)); 10423 10424 // Keep empty and one-element array literals on a single line. 10425 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[]\n" 10426 " copyItems:YES];", 10427 format("NSArray*a=[[NSArray alloc] initWithArray:@[]\n" 10428 "copyItems:YES];", 10429 Style)); 10430 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n" 10431 " copyItems:YES];", 10432 format("NSArray*a=[[NSArray alloc]initWithArray:@[ @\"a\" ]\n" 10433 " copyItems:YES];", 10434 Style)); 10435 // FIXME: This does not seem right, there should be more indentation before 10436 // the array literal's entries. Nested blocks have the same problem. 10437 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10438 " @\"a\",\n" 10439 " @\"a\"\n" 10440 "]\n" 10441 " copyItems:YES];", 10442 format("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10443 " @\"a\",\n" 10444 " @\"a\"\n" 10445 " ]\n" 10446 " copyItems:YES];", 10447 Style)); 10448 EXPECT_EQ( 10449 "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10450 " copyItems:YES];", 10451 format("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10452 " copyItems:YES];", 10453 Style)); 10454 10455 verifyFormat("[self.a b:c c:d];", Style); 10456 EXPECT_EQ("[self.a b:c\n" 10457 " c:d];", 10458 format("[self.a b:c\n" 10459 "c:d];", 10460 Style)); 10461 } 10462 10463 TEST_F(FormatTest, FormatsLambdas) { 10464 verifyFormat("int c = [b]() mutable { return [&b] { return b++; }(); }();\n"); 10465 verifyFormat("int c = [&] { [=] { return b++; }(); }();\n"); 10466 verifyFormat("int c = [&, &a, a] { [=, c, &d] { return b++; }(); }();\n"); 10467 verifyFormat("int c = [&a, &a, a] { [=, a, b, &c] { return b++; }(); }();\n"); 10468 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] { return b++; }(); }}\n"); 10469 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n"); 10470 verifyFormat("void f() {\n" 10471 " other(x.begin(), x.end(), [&](int, int) { return 1; });\n" 10472 "}\n"); 10473 verifyFormat("void f() {\n" 10474 " other(x.begin(), //\n" 10475 " x.end(), //\n" 10476 " [&](int, int) { return 1; });\n" 10477 "}\n"); 10478 verifyFormat("SomeFunction([]() { // A cool function...\n" 10479 " return 43;\n" 10480 "});"); 10481 EXPECT_EQ("SomeFunction([]() {\n" 10482 "#define A a\n" 10483 " return 43;\n" 10484 "});", 10485 format("SomeFunction([](){\n" 10486 "#define A a\n" 10487 "return 43;\n" 10488 "});")); 10489 verifyFormat("void f() {\n" 10490 " SomeFunction([](decltype(x), A *a) {});\n" 10491 "}"); 10492 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 10493 " [](const aaaaaaaaaa &a) { return a; });"); 10494 verifyFormat("string abc = SomeFunction(aaaaaaaaaaaaa, aaaaa, []() {\n" 10495 " SomeOtherFunctioooooooooooooooooooooooooon();\n" 10496 "});"); 10497 verifyFormat("Constructor()\n" 10498 " : Field([] { // comment\n" 10499 " int i;\n" 10500 " }) {}"); 10501 verifyFormat("auto my_lambda = [](const string &some_parameter) {\n" 10502 " return some_parameter.size();\n" 10503 "};"); 10504 verifyFormat("int i = aaaaaa ? 1 //\n" 10505 " : [] {\n" 10506 " return 2; //\n" 10507 " }();"); 10508 verifyFormat("llvm::errs() << \"number of twos is \"\n" 10509 " << std::count_if(v.begin(), v.end(), [](int x) {\n" 10510 " return x == 2; // force break\n" 10511 " });"); 10512 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa([=](\n" 10513 " int iiiiiiiiiiii) {\n" 10514 " return aaaaaaaaaaaaaaaaaaaaaaa != aaaaaaaaaaaaaaaaaaaaaaa;\n" 10515 "});", 10516 getLLVMStyleWithColumns(60)); 10517 verifyFormat("SomeFunction({[&] {\n" 10518 " // comment\n" 10519 " },\n" 10520 " [&] {\n" 10521 " // comment\n" 10522 " }});"); 10523 verifyFormat("SomeFunction({[&] {\n" 10524 " // comment\n" 10525 "}});"); 10526 verifyFormat("virtual aaaaaaaaaaaaaaaa(std::function<bool()> bbbbbbbbbbbb =\n" 10527 " [&]() { return true; },\n" 10528 " aaaaa aaaaaaaaa);"); 10529 10530 // Lambdas with return types. 10531 verifyFormat("int c = []() -> int { return 2; }();\n"); 10532 verifyFormat("int c = []() -> int * { return 2; }();\n"); 10533 verifyFormat("int c = []() -> vector<int> { return {2}; }();\n"); 10534 verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());"); 10535 verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};"); 10536 verifyGoogleFormat("auto a = [&b, c](D* d) -> pair<D*, D*> {};"); 10537 verifyGoogleFormat("auto a = [&b, c](D* d) -> D& {};"); 10538 verifyGoogleFormat("auto a = [&b, c](D* d) -> const D* {};"); 10539 verifyFormat("[a, a]() -> a<1> {};"); 10540 verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n" 10541 " int j) -> int {\n" 10542 " return ffffffffffffffffffffffffffffffffffffffffffff(i * j);\n" 10543 "};"); 10544 verifyFormat( 10545 "aaaaaaaaaaaaaaaaaaaaaa(\n" 10546 " [](aaaaaaaaaaaaaaaaaaaaaaaaaaa &aaa) -> aaaaaaaaaaaaaaaa {\n" 10547 " return aaaaaaaaaaaaaaaaa;\n" 10548 " });", 10549 getLLVMStyleWithColumns(70)); 10550 10551 // Multiple lambdas in the same parentheses change indentation rules. 10552 verifyFormat("SomeFunction(\n" 10553 " []() {\n" 10554 " int i = 42;\n" 10555 " return i;\n" 10556 " },\n" 10557 " []() {\n" 10558 " int j = 43;\n" 10559 " return j;\n" 10560 " });"); 10561 10562 // More complex introducers. 10563 verifyFormat("return [i, args...] {};"); 10564 10565 // Not lambdas. 10566 verifyFormat("constexpr char hello[]{\"hello\"};"); 10567 verifyFormat("double &operator[](int i) { return 0; }\n" 10568 "int i;"); 10569 verifyFormat("std::unique_ptr<int[]> foo() {}"); 10570 verifyFormat("int i = a[a][a]->f();"); 10571 verifyFormat("int i = (*b)[a]->f();"); 10572 10573 // Other corner cases. 10574 verifyFormat("void f() {\n" 10575 " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n" 10576 " );\n" 10577 "}"); 10578 10579 // Lambdas created through weird macros. 10580 verifyFormat("void f() {\n" 10581 " MACRO((const AA &a) { return 1; });\n" 10582 "}"); 10583 10584 verifyFormat("if (blah_blah(whatever, whatever, [] {\n" 10585 " doo_dah();\n" 10586 " doo_dah();\n" 10587 " })) {\n" 10588 "}"); 10589 verifyFormat("auto lambda = []() {\n" 10590 " int a = 2\n" 10591 "#if A\n" 10592 " + 2\n" 10593 "#endif\n" 10594 " ;\n" 10595 "};"); 10596 } 10597 10598 TEST_F(FormatTest, FormatsBlocks) { 10599 FormatStyle ShortBlocks = getLLVMStyle(); 10600 ShortBlocks.AllowShortBlocksOnASingleLine = true; 10601 verifyFormat("int (^Block)(int, int);", ShortBlocks); 10602 verifyFormat("int (^Block1)(int, int) = ^(int i, int j)", ShortBlocks); 10603 verifyFormat("void (^block)(int) = ^(id test) { int i; };", ShortBlocks); 10604 verifyFormat("void (^block)(int) = ^(int test) { int i; };", ShortBlocks); 10605 verifyFormat("void (^block)(int) = ^id(int test) { int i; };", ShortBlocks); 10606 verifyFormat("void (^block)(int) = ^int(int test) { int i; };", ShortBlocks); 10607 10608 verifyFormat("foo(^{ bar(); });", ShortBlocks); 10609 verifyFormat("foo(a, ^{ bar(); });", ShortBlocks); 10610 verifyFormat("{ void (^block)(Object *x); }", ShortBlocks); 10611 10612 verifyFormat("[operation setCompletionBlock:^{\n" 10613 " [self onOperationDone];\n" 10614 "}];"); 10615 verifyFormat("int i = {[operation setCompletionBlock:^{\n" 10616 " [self onOperationDone];\n" 10617 "}]};"); 10618 verifyFormat("[operation setCompletionBlock:^(int *i) {\n" 10619 " f();\n" 10620 "}];"); 10621 verifyFormat("int a = [operation block:^int(int *i) {\n" 10622 " return 1;\n" 10623 "}];"); 10624 verifyFormat("[myObject doSomethingWith:arg1\n" 10625 " aaa:^int(int *a) {\n" 10626 " return 1;\n" 10627 " }\n" 10628 " bbb:f(a * bbbbbbbb)];"); 10629 10630 verifyFormat("[operation setCompletionBlock:^{\n" 10631 " [self.delegate newDataAvailable];\n" 10632 "}];", 10633 getLLVMStyleWithColumns(60)); 10634 verifyFormat("dispatch_async(_fileIOQueue, ^{\n" 10635 " NSString *path = [self sessionFilePath];\n" 10636 " if (path) {\n" 10637 " // ...\n" 10638 " }\n" 10639 "});"); 10640 verifyFormat("[[SessionService sharedService]\n" 10641 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10642 " if (window) {\n" 10643 " [self windowDidLoad:window];\n" 10644 " } else {\n" 10645 " [self errorLoadingWindow];\n" 10646 " }\n" 10647 " }];"); 10648 verifyFormat("void (^largeBlock)(void) = ^{\n" 10649 " // ...\n" 10650 "};\n", 10651 getLLVMStyleWithColumns(40)); 10652 verifyFormat("[[SessionService sharedService]\n" 10653 " loadWindowWithCompletionBlock: //\n" 10654 " ^(SessionWindow *window) {\n" 10655 " if (window) {\n" 10656 " [self windowDidLoad:window];\n" 10657 " } else {\n" 10658 " [self errorLoadingWindow];\n" 10659 " }\n" 10660 " }];", 10661 getLLVMStyleWithColumns(60)); 10662 verifyFormat("[myObject doSomethingWith:arg1\n" 10663 " firstBlock:^(Foo *a) {\n" 10664 " // ...\n" 10665 " int i;\n" 10666 " }\n" 10667 " secondBlock:^(Bar *b) {\n" 10668 " // ...\n" 10669 " int i;\n" 10670 " }\n" 10671 " thirdBlock:^Foo(Bar *b) {\n" 10672 " // ...\n" 10673 " int i;\n" 10674 " }];"); 10675 verifyFormat("[myObject doSomethingWith:arg1\n" 10676 " firstBlock:-1\n" 10677 " secondBlock:^(Bar *b) {\n" 10678 " // ...\n" 10679 " int i;\n" 10680 " }];"); 10681 10682 verifyFormat("f(^{\n" 10683 " @autoreleasepool {\n" 10684 " if (a) {\n" 10685 " g();\n" 10686 " }\n" 10687 " }\n" 10688 "});"); 10689 verifyFormat("Block b = ^int *(A *a, B *b) {}"); 10690 10691 FormatStyle FourIndent = getLLVMStyle(); 10692 FourIndent.ObjCBlockIndentWidth = 4; 10693 verifyFormat("[operation setCompletionBlock:^{\n" 10694 " [self onOperationDone];\n" 10695 "}];", 10696 FourIndent); 10697 } 10698 10699 TEST_F(FormatTest, FormatsBlocksWithZeroColumnWidth) { 10700 FormatStyle ZeroColumn = getLLVMStyle(); 10701 ZeroColumn.ColumnLimit = 0; 10702 10703 verifyFormat("[[SessionService sharedService] " 10704 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10705 " if (window) {\n" 10706 " [self windowDidLoad:window];\n" 10707 " } else {\n" 10708 " [self errorLoadingWindow];\n" 10709 " }\n" 10710 "}];", 10711 ZeroColumn); 10712 EXPECT_EQ("[[SessionService sharedService]\n" 10713 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10714 " if (window) {\n" 10715 " [self windowDidLoad:window];\n" 10716 " } else {\n" 10717 " [self errorLoadingWindow];\n" 10718 " }\n" 10719 " }];", 10720 format("[[SessionService sharedService]\n" 10721 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10722 " if (window) {\n" 10723 " [self windowDidLoad:window];\n" 10724 " } else {\n" 10725 " [self errorLoadingWindow];\n" 10726 " }\n" 10727 "}];", 10728 ZeroColumn)); 10729 verifyFormat("[myObject doSomethingWith:arg1\n" 10730 " firstBlock:^(Foo *a) {\n" 10731 " // ...\n" 10732 " int i;\n" 10733 " }\n" 10734 " secondBlock:^(Bar *b) {\n" 10735 " // ...\n" 10736 " int i;\n" 10737 " }\n" 10738 " thirdBlock:^Foo(Bar *b) {\n" 10739 " // ...\n" 10740 " int i;\n" 10741 " }];", 10742 ZeroColumn); 10743 verifyFormat("f(^{\n" 10744 " @autoreleasepool {\n" 10745 " if (a) {\n" 10746 " g();\n" 10747 " }\n" 10748 " }\n" 10749 "});", 10750 ZeroColumn); 10751 verifyFormat("void (^largeBlock)(void) = ^{\n" 10752 " // ...\n" 10753 "};", 10754 ZeroColumn); 10755 10756 ZeroColumn.AllowShortBlocksOnASingleLine = true; 10757 EXPECT_EQ("void (^largeBlock)(void) = ^{ int i; };", 10758 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10759 ZeroColumn.AllowShortBlocksOnASingleLine = false; 10760 EXPECT_EQ("void (^largeBlock)(void) = ^{\n" 10761 " int i;\n" 10762 "};", 10763 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10764 } 10765 10766 TEST_F(FormatTest, SupportsCRLF) { 10767 EXPECT_EQ("int a;\r\n" 10768 "int b;\r\n" 10769 "int c;\r\n", 10770 format("int a;\r\n" 10771 " int b;\r\n" 10772 " int c;\r\n", 10773 getLLVMStyle())); 10774 EXPECT_EQ("int a;\r\n" 10775 "int b;\r\n" 10776 "int c;\r\n", 10777 format("int a;\r\n" 10778 " int b;\n" 10779 " int c;\r\n", 10780 getLLVMStyle())); 10781 EXPECT_EQ("int a;\n" 10782 "int b;\n" 10783 "int c;\n", 10784 format("int a;\r\n" 10785 " int b;\n" 10786 " int c;\n", 10787 getLLVMStyle())); 10788 EXPECT_EQ("\"aaaaaaa \"\r\n" 10789 "\"bbbbbbb\";\r\n", 10790 format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10))); 10791 EXPECT_EQ("#define A \\\r\n" 10792 " b; \\\r\n" 10793 " c; \\\r\n" 10794 " d;\r\n", 10795 format("#define A \\\r\n" 10796 " b; \\\r\n" 10797 " c; d; \r\n", 10798 getGoogleStyle())); 10799 10800 EXPECT_EQ("/*\r\n" 10801 "multi line block comments\r\n" 10802 "should not introduce\r\n" 10803 "an extra carriage return\r\n" 10804 "*/\r\n", 10805 format("/*\r\n" 10806 "multi line block comments\r\n" 10807 "should not introduce\r\n" 10808 "an extra carriage return\r\n" 10809 "*/\r\n")); 10810 } 10811 10812 TEST_F(FormatTest, MunchSemicolonAfterBlocks) { 10813 verifyFormat("MY_CLASS(C) {\n" 10814 " int i;\n" 10815 " int j;\n" 10816 "};"); 10817 } 10818 10819 TEST_F(FormatTest, ConfigurableContinuationIndentWidth) { 10820 FormatStyle TwoIndent = getLLVMStyleWithColumns(15); 10821 TwoIndent.ContinuationIndentWidth = 2; 10822 10823 EXPECT_EQ("int i =\n" 10824 " longFunction(\n" 10825 " arg);", 10826 format("int i = longFunction(arg);", TwoIndent)); 10827 10828 FormatStyle SixIndent = getLLVMStyleWithColumns(20); 10829 SixIndent.ContinuationIndentWidth = 6; 10830 10831 EXPECT_EQ("int i =\n" 10832 " longFunction(\n" 10833 " arg);", 10834 format("int i = longFunction(arg);", SixIndent)); 10835 } 10836 10837 TEST_F(FormatTest, SpacesInAngles) { 10838 FormatStyle Spaces = getLLVMStyle(); 10839 Spaces.SpacesInAngles = true; 10840 10841 verifyFormat("static_cast< int >(arg);", Spaces); 10842 verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces); 10843 verifyFormat("f< int, float >();", Spaces); 10844 verifyFormat("template <> g() {}", Spaces); 10845 verifyFormat("template < std::vector< int > > f() {}", Spaces); 10846 verifyFormat("std::function< void(int, int) > fct;", Spaces); 10847 verifyFormat("void inFunction() { std::function< void(int, int) > fct; }", 10848 Spaces); 10849 10850 Spaces.Standard = FormatStyle::LS_Cpp03; 10851 Spaces.SpacesInAngles = true; 10852 verifyFormat("A< A< int > >();", Spaces); 10853 10854 Spaces.SpacesInAngles = false; 10855 verifyFormat("A<A<int> >();", Spaces); 10856 10857 Spaces.Standard = FormatStyle::LS_Cpp11; 10858 Spaces.SpacesInAngles = true; 10859 verifyFormat("A< A< int > >();", Spaces); 10860 10861 Spaces.SpacesInAngles = false; 10862 verifyFormat("A<A<int>>();", Spaces); 10863 } 10864 10865 TEST_F(FormatTest, TripleAngleBrackets) { 10866 verifyFormat("f<<<1, 1>>>();"); 10867 verifyFormat("f<<<1, 1, 1, s>>>();"); 10868 verifyFormat("f<<<a, b, c, d>>>();"); 10869 EXPECT_EQ("f<<<1, 1>>>();", format("f <<< 1, 1 >>> ();")); 10870 verifyFormat("f<param><<<1, 1>>>();"); 10871 verifyFormat("f<1><<<1, 1>>>();"); 10872 EXPECT_EQ("f<param><<<1, 1>>>();", format("f< param > <<< 1, 1 >>> ();")); 10873 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10874 "aaaaaaaaaaa<<<\n 1, 1>>>();"); 10875 } 10876 10877 TEST_F(FormatTest, MergeLessLessAtEnd) { 10878 verifyFormat("<<"); 10879 EXPECT_EQ("< < <", format("\\\n<<<")); 10880 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10881 "aaallvm::outs() <<"); 10882 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10883 "aaaallvm::outs()\n <<"); 10884 } 10885 10886 TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) { 10887 std::string code = "#if A\n" 10888 "#if B\n" 10889 "a.\n" 10890 "#endif\n" 10891 " a = 1;\n" 10892 "#else\n" 10893 "#endif\n" 10894 "#if C\n" 10895 "#else\n" 10896 "#endif\n"; 10897 EXPECT_EQ(code, format(code)); 10898 } 10899 10900 TEST_F(FormatTest, HandleConflictMarkers) { 10901 // Git/SVN conflict markers. 10902 EXPECT_EQ("int a;\n" 10903 "void f() {\n" 10904 " callme(some(parameter1,\n" 10905 "<<<<<<< text by the vcs\n" 10906 " parameter2),\n" 10907 "||||||| text by the vcs\n" 10908 " parameter2),\n" 10909 " parameter3,\n" 10910 "======= text by the vcs\n" 10911 " parameter2, parameter3),\n" 10912 ">>>>>>> text by the vcs\n" 10913 " otherparameter);\n", 10914 format("int a;\n" 10915 "void f() {\n" 10916 " callme(some(parameter1,\n" 10917 "<<<<<<< text by the vcs\n" 10918 " parameter2),\n" 10919 "||||||| text by the vcs\n" 10920 " parameter2),\n" 10921 " parameter3,\n" 10922 "======= text by the vcs\n" 10923 " parameter2,\n" 10924 " parameter3),\n" 10925 ">>>>>>> text by the vcs\n" 10926 " otherparameter);\n")); 10927 10928 // Perforce markers. 10929 EXPECT_EQ("void f() {\n" 10930 " function(\n" 10931 ">>>> text by the vcs\n" 10932 " parameter,\n" 10933 "==== text by the vcs\n" 10934 " parameter,\n" 10935 "==== text by the vcs\n" 10936 " parameter,\n" 10937 "<<<< text by the vcs\n" 10938 " parameter);\n", 10939 format("void f() {\n" 10940 " function(\n" 10941 ">>>> text by the vcs\n" 10942 " parameter,\n" 10943 "==== text by the vcs\n" 10944 " parameter,\n" 10945 "==== text by the vcs\n" 10946 " parameter,\n" 10947 "<<<< text by the vcs\n" 10948 " parameter);\n")); 10949 10950 EXPECT_EQ("<<<<<<<\n" 10951 "|||||||\n" 10952 "=======\n" 10953 ">>>>>>>", 10954 format("<<<<<<<\n" 10955 "|||||||\n" 10956 "=======\n" 10957 ">>>>>>>")); 10958 10959 EXPECT_EQ("<<<<<<<\n" 10960 "|||||||\n" 10961 "int i;\n" 10962 "=======\n" 10963 ">>>>>>>", 10964 format("<<<<<<<\n" 10965 "|||||||\n" 10966 "int i;\n" 10967 "=======\n" 10968 ">>>>>>>")); 10969 10970 // FIXME: Handle parsing of macros around conflict markers correctly: 10971 EXPECT_EQ("#define Macro \\\n" 10972 "<<<<<<<\n" 10973 "Something \\\n" 10974 "|||||||\n" 10975 "Else \\\n" 10976 "=======\n" 10977 "Other \\\n" 10978 ">>>>>>>\n" 10979 " End int i;\n", 10980 format("#define Macro \\\n" 10981 "<<<<<<<\n" 10982 " Something \\\n" 10983 "|||||||\n" 10984 " Else \\\n" 10985 "=======\n" 10986 " Other \\\n" 10987 ">>>>>>>\n" 10988 " End\n" 10989 "int i;\n")); 10990 } 10991 10992 TEST_F(FormatTest, DisableRegions) { 10993 EXPECT_EQ("int i;\n" 10994 "// clang-format off\n" 10995 " int j;\n" 10996 "// clang-format on\n" 10997 "int k;", 10998 format(" int i;\n" 10999 " // clang-format off\n" 11000 " int j;\n" 11001 " // clang-format on\n" 11002 " int k;")); 11003 EXPECT_EQ("int i;\n" 11004 "/* clang-format off */\n" 11005 " int j;\n" 11006 "/* clang-format on */\n" 11007 "int k;", 11008 format(" int i;\n" 11009 " /* clang-format off */\n" 11010 " int j;\n" 11011 " /* clang-format on */\n" 11012 " int k;")); 11013 } 11014 11015 TEST_F(FormatTest, DoNotCrashOnInvalidInput) { 11016 format("? ) ="); 11017 verifyNoCrash("#define a\\\n /**/}"); 11018 } 11019 11020 } // end namespace 11021 } // end namespace format 11022 } // end namespace clang 11023
