1 /* 2 * Copyright 2016 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "SkSLCompiler.h" 9 10 #include "Test.h" 11 12 #if SK_SUPPORT_GPU 13 14 static void test_failure(skiatest::Reporter* r, const char* src, const char* error) { 15 SkSL::Compiler compiler; 16 SkSL::Program::Settings settings; 17 sk_sp<GrShaderCaps> caps = SkSL::ShaderCapsFactory::Default(); 18 settings.fCaps = caps.get(); 19 compiler.convertProgram(SkSL::Program::kFragment_Kind, SkSL::String(src), settings); 20 SkSL::String skError(error); 21 if (compiler.errorText() != skError) { 22 SkDebugf("SKSL ERROR:\n source: %s\n expected: %s received: %s", src, error, 23 compiler.errorText().c_str()); 24 } 25 REPORTER_ASSERT(r, compiler.errorText() == skError); 26 } 27 28 static void test_success(skiatest::Reporter* r, const char* src) { 29 SkSL::Compiler compiler; 30 SkSL::Program::Settings settings; 31 sk_sp<GrShaderCaps> caps = SkSL::ShaderCapsFactory::Default(); 32 settings.fCaps = caps.get(); 33 std::unique_ptr<SkSL::Program> program = compiler.convertProgram(SkSL::Program::kFragment_Kind, 34 SkSL::String(src), settings); 35 REPORTER_ASSERT(r, program); 36 } 37 38 DEF_TEST(SkSLUndefinedSymbol, r) { 39 test_failure(r, 40 "void main() { x = float2(1); }", 41 "error: 1: unknown identifier 'x'\n1 error\n"); 42 } 43 44 DEF_TEST(SkSLUndefinedFunction, r) { 45 test_failure(r, 46 "void main() { int x = foo(1); }", 47 "error: 1: unknown identifier 'foo'\n1 error\n"); 48 } 49 50 DEF_TEST(SkSLGenericArgumentMismatch, r) { 51 test_failure(r, 52 "void main() { float x = sin(1, 2); }", 53 "error: 1: call to 'sin' expected 1 argument, but found 2\n1 error\n"); 54 test_failure(r, 55 "void main() { float x = sin(true); }", 56 "error: 1: no match for sin(bool)\n1 error\n"); 57 test_success(r, 58 "void main() { float x = sin(1); }"); 59 } 60 61 DEF_TEST(SkSLArgumentCountMismatch, r) { 62 test_failure(r, 63 "float foo(float x) { return x * x; }" 64 "void main() { float x = foo(1, 2); }", 65 "error: 1: call to 'foo' expected 1 argument, but found 2\n1 error\n"); 66 } 67 68 DEF_TEST(SkSLArgumentMismatch, r) { 69 test_failure(r, 70 "float foo(float x) { return x * x; }" 71 "void main() { float x = foo(true); }", 72 "error: 1: expected 'float', but found 'bool'\n1 error\n"); 73 } 74 75 DEF_TEST(SkSLIfTypeMismatch, r) { 76 test_failure(r, 77 "void main() { if (3) { } }", 78 "error: 1: expected 'bool', but found 'int'\n1 error\n"); 79 } 80 81 DEF_TEST(SkSLDoTypeMismatch, r) { 82 test_failure(r, 83 "void main() { do { } while (float2(1)); }", 84 "error: 1: expected 'bool', but found 'float2'\n1 error\n"); 85 } 86 87 DEF_TEST(SkSLWhileTypeMismatch, r) { 88 test_failure(r, 89 "void main() { while (float3(1)) { } }", 90 "error: 1: expected 'bool', but found 'float3'\n1 error\n"); 91 } 92 93 DEF_TEST(SkSLForTypeMismatch, r) { 94 test_failure(r, 95 "void main() { for (int x = 0; x; x++) { } }", 96 "error: 1: expected 'bool', but found 'int'\n1 error\n"); 97 } 98 99 DEF_TEST(SkSLConstructorTypeMismatch, r) { 100 test_failure(r, 101 "void main() { float2 x = float2(1.0, false); }", 102 "error: 1: expected 'float', but found 'bool'\n1 error\n"); 103 test_failure(r, 104 "void main() { float2 x = float2(bool2(false)); }", 105 "error: 1: 'bool2' is not a valid parameter to 'float2' constructor\n1 error\n"); 106 test_failure(r, 107 "void main() { bool2 x = bool2(float2(1)); }", 108 "error: 1: 'float2' is not a valid parameter to 'bool2' constructor\n1 error\n"); 109 test_failure(r, 110 "void main() { bool x = bool(1.0); }", 111 "error: 1: cannot construct 'bool'\n1 error\n"); 112 test_failure(r, 113 "struct foo { int x; }; void main() { foo x = foo(5); }", 114 "error: 1: cannot construct 'foo'\n1 error\n"); 115 test_failure(r, 116 "struct foo { int x; } foo; void main() { float x = float(foo); }", 117 "error: 1: invalid argument to 'float' constructor (expected a number or bool, but found 'foo')\n1 error\n"); 118 test_failure(r, 119 "struct foo { int x; } foo; void main() { float2 x = float2(foo); }", 120 "error: 1: 'foo' is not a valid parameter to 'float2' constructor\n1 error\n"); 121 test_failure(r, 122 "void main() { float2x2 x = float2x2(true); }", 123 "error: 1: expected 'float', but found 'bool'\n1 error\n"); 124 } 125 126 DEF_TEST(SkSLConstructorArgumentCount, r) { 127 test_failure(r, 128 "void main() { float3 x = float3(1.0, 2.0); }", 129 "error: 1: invalid arguments to 'float3' constructor (expected 3 scalars, but " 130 "found 2)\n1 error\n"); 131 test_failure(r, 132 "void main() { float3 x = float3(1.0, 2.0, 3.0, 4.0); }", 133 "error: 1: invalid arguments to 'float3' constructor (expected 3 scalars, but found " 134 "4)\n1 error\n"); 135 } 136 137 DEF_TEST(SkSLSwizzleScalar, r) { 138 test_failure(r, 139 "void main() { float x = 1; float y = x.y; }", 140 "error: 1: cannot swizzle value of type 'float'\n1 error\n"); 141 } 142 143 DEF_TEST(SkSLSwizzleMatrix, r) { 144 test_failure(r, 145 "void main() { float2x2 x = float2x2(1); float y = x.y; }", 146 "error: 1: cannot swizzle value of type 'float2x2'\n1 error\n"); 147 } 148 149 DEF_TEST(SkSLSwizzleOutOfBounds, r) { 150 test_failure(r, 151 "void main() { float3 test = float2(1).xyz; }", 152 "error: 1: invalid swizzle component 'z'\n1 error\n"); 153 } 154 155 DEF_TEST(SkSLSwizzleTooManyComponents, r) { 156 test_failure(r, 157 "void main() { float4 test = float2(1).xxxxx; }", 158 "error: 1: too many components in swizzle mask 'xxxxx'\n1 error\n"); 159 } 160 161 DEF_TEST(SkSLSwizzleDuplicateOutput, r) { 162 test_failure(r, 163 "void main() { float4 test = float4(1); test.xyyz = float4(1); }", 164 "error: 1: cannot write to the same swizzle field more than once\n1 error\n"); 165 } 166 167 DEF_TEST(SkSLAssignmentTypeMismatch, r) { 168 test_failure(r, 169 "void main() { int x = 1.0; }", 170 "error: 1: expected 'int', but found 'float'\n1 error\n"); 171 test_failure(r, 172 "void main() { int x; x = 1.0; }", 173 "error: 1: type mismatch: '=' cannot operate on 'int', 'float'\n1 error\n"); 174 test_success(r, 175 "void main() { float3 x = float3(0); x *= 1.0; }"); 176 test_failure(r, 177 "void main() { int3 x = int3(0); x *= 1.0; }", 178 "error: 1: type mismatch: '*=' cannot operate on 'int3', 'float'\n1 error\n"); 179 } 180 181 DEF_TEST(SkSLReturnFromVoid, r) { 182 test_failure(r, 183 "void main() { return true; }", 184 "error: 1: may not return a value from a void function\n1 error\n"); 185 } 186 187 DEF_TEST(SkSLReturnMissingValue, r) { 188 test_failure(r, 189 "int foo() { return; } void main() { }", 190 "error: 1: expected function to return 'int'\n1 error\n"); 191 } 192 193 DEF_TEST(SkSLReturnTypeMismatch, r) { 194 test_failure(r, 195 "int foo() { return 1.0; } void main() { }", 196 "error: 1: expected 'int', but found 'float'\n1 error\n"); 197 } 198 199 DEF_TEST(SkSLDuplicateFunction, r) { 200 test_failure(r, 201 "void main() { } void main() { }", 202 "error: 1: duplicate definition of void main()\n1 error\n"); 203 test_success(r, 204 "void main(); void main() { }"); 205 } 206 207 DEF_TEST(SkSLUsingInvalidValue, r) { 208 test_failure(r, 209 "void main() { int x = int; }", 210 "error: 1: expected '(' to begin constructor invocation\n1 error\n"); 211 test_failure(r, 212 "int test() { return 1; } void main() { int x = test; }", 213 "error: 1: expected '(' to begin function call\n1 error\n"); 214 } 215 DEF_TEST(SkSLDifferentReturnType, r) { 216 test_failure(r, 217 "int main() { return 1; } void main() { }", 218 "error: 1: functions 'void main()' and 'int main()' differ only in return type\n1 " 219 "error\n"); 220 } 221 222 DEF_TEST(SkSLDifferentModifiers, r) { 223 test_failure(r, 224 "void test(int x); void test(out int x) { }", 225 "error: 1: modifiers on parameter 1 differ between declaration and definition\n1 " 226 "error\n"); 227 } 228 229 DEF_TEST(SkSLDuplicateSymbol, r) { 230 test_failure(r, 231 "int main; void main() { }", 232 "error: 1: symbol 'main' was already defined\n1 error\n"); 233 234 test_failure(r, 235 "int x; int x; void main() { }", 236 "error: 1: symbol 'x' was already defined\n1 error\n"); 237 238 test_success(r, "int x; void main() { int x; }"); 239 } 240 241 DEF_TEST(SkSLBinaryTypeMismatch, r) { 242 test_failure(r, 243 "void main() { float x = 3 * true; }", 244 "error: 1: type mismatch: '*' cannot operate on 'int', 'bool'\n1 error\n"); 245 test_failure(r, 246 "void main() { bool x = 1 || 2.0; }", 247 "error: 1: type mismatch: '||' cannot operate on 'int', 'float'\n1 error\n"); 248 } 249 250 DEF_TEST(SkSLCallNonFunction, r) { 251 test_failure(r, 252 "void main() { float x = 3; x(); }", 253 "error: 1: 'x' is not a function\n1 error\n"); 254 } 255 256 DEF_TEST(SkSLInvalidUnary, r) { 257 test_failure(r, 258 "void main() { float4x4 x = float4x4(1); ++x; }", 259 "error: 1: '++' cannot operate on 'float4x4'\n1 error\n"); 260 test_failure(r, 261 "void main() { float3 x = float3(1); --x; }", 262 "error: 1: '--' cannot operate on 'float3'\n1 error\n"); 263 test_failure(r, 264 "void main() { float4x4 x = float4x4(1); x++; }", 265 "error: 1: '++' cannot operate on 'float4x4'\n1 error\n"); 266 test_failure(r, 267 "void main() { float3 x = float3(1); x--; }", 268 "error: 1: '--' cannot operate on 'float3'\n1 error\n"); 269 test_failure(r, 270 "void main() { int x = !12; }", 271 "error: 1: '!' cannot operate on 'int'\n1 error\n"); 272 test_failure(r, 273 "struct foo { } bar; void main() { foo x = +bar; }", 274 "error: 1: '+' cannot operate on 'foo'\n1 error\n"); 275 test_failure(r, 276 "struct foo { } bar; void main() { foo x = -bar; }", 277 "error: 1: '-' cannot operate on 'foo'\n1 error\n"); 278 test_success(r, 279 "void main() { float2 x = float2(1, 1); x = +x; x = -x; }"); 280 } 281 282 DEF_TEST(SkSLInvalidAssignment, r) { 283 test_failure(r, 284 "void main() { 1 = 2; }", 285 "error: 1: cannot assign to '1'\n1 error\n"); 286 test_failure(r, 287 "uniform int x; void main() { x = 0; }", 288 "error: 1: cannot modify immutable variable 'x'\n1 error\n"); 289 test_failure(r, 290 "const int x; void main() { x = 0; }", 291 "error: 1: cannot modify immutable variable 'x'\n1 error\n"); 292 } 293 294 DEF_TEST(SkSLBadIndex, r) { 295 test_failure(r, 296 "void main() { int x = 2[0]; }", 297 "error: 1: expected array, but found 'int'\n1 error\n"); 298 test_failure(r, 299 "void main() { float2 x = float2(0); int y = x[0][0]; }", 300 "error: 1: expected array, but found 'float'\n1 error\n"); 301 } 302 303 DEF_TEST(SkSLTernaryMismatch, r) { 304 test_failure(r, 305 "void main() { int x = 5 > 2 ? true : 1.0; }", 306 "error: 1: ternary operator result mismatch: 'bool', 'float'\n1 error\n"); 307 test_failure(r, 308 "void main() { int x = 5 > 2 ? float3(1) : 1.0; }", 309 "error: 1: ternary operator result mismatch: 'float3', 'float'\n1 error\n"); 310 } 311 312 DEF_TEST(SkSLInterfaceBlockStorageModifiers, r) { 313 test_failure(r, 314 "uniform foo { out int x; };", 315 "error: 1: interface block fields may not have storage qualifiers\n1 error\n"); 316 } 317 318 DEF_TEST(SkSLUseWithoutInitialize, r) { 319 test_failure(r, 320 "void main() { int x; if (5 == 2) x = 3; x++; }", 321 "error: 1: 'x' has not been assigned\n1 error\n"); 322 test_failure(r, 323 "void main() { int x[2][2]; int i; x[i][1] = 4; }", 324 "error: 1: 'i' has not been assigned\n1 error\n"); 325 test_failure(r, 326 "int main() { int r; return r; }", 327 "error: 1: 'r' has not been assigned\n1 error\n"); 328 test_failure(r, 329 "void main() { int x; int y = x; }", 330 "error: 1: 'x' has not been assigned\n1 error\n"); 331 test_failure(r, 332 "void main() { bool x; if (true && (false || x)) return; }", 333 "error: 1: 'x' has not been assigned\n1 error\n"); 334 test_failure(r, 335 "void main() { int x; switch (3) { case 0: x = 0; case 1: x = 1; }" 336 "sk_FragColor = float4(x); }", 337 "error: 1: 'x' has not been assigned\n1 error\n"); 338 } 339 340 DEF_TEST(SkSLUnreachable, r) { 341 test_failure(r, 342 "void main() { return; return; }", 343 "error: 1: unreachable\n1 error\n"); 344 test_failure(r, 345 "void main() { for (;;) { continue; int x = 1; } }", 346 "error: 1: unreachable\n1 error\n"); 347 /* test_failure(r, 348 "void main() { for (;;) { } return; }", 349 "error: 1: unreachable\n1 error\n");*/ 350 test_failure(r, 351 "void main() { if (true) return; else discard; return; }", 352 "error: 1: unreachable\n1 error\n"); 353 test_failure(r, 354 "void main() { return; while (true); }", 355 "error: 1: unreachable\n1 error\n"); 356 } 357 358 DEF_TEST(SkSLNoReturn, r) { 359 test_failure(r, 360 "int foo() { if (2 > 5) return 3; }", 361 "error: 1: function can exit without returning a value\n1 error\n"); 362 } 363 364 DEF_TEST(SkSLBreakOutsideLoop, r) { 365 test_failure(r, 366 "void foo() { while(true) {} if (true) break; }", 367 "error: 1: break statement must be inside a loop or switch\n1 error\n"); 368 } 369 370 DEF_TEST(SkSLContinueOutsideLoop, r) { 371 test_failure(r, 372 "void foo() { for(;;); continue; }", 373 "error: 1: continue statement must be inside a loop\n1 error\n"); 374 test_failure(r, 375 "void foo() { switch (1) { default: continue; } }", 376 "error: 1: continue statement must be inside a loop\n1 error\n"); 377 } 378 379 DEF_TEST(SkSLStaticIfError, r) { 380 // ensure eliminated branch of static if / ternary is still checked for errors 381 test_failure(r, 382 "void foo() { if (true); else x = 5; }", 383 "error: 1: unknown identifier 'x'\n1 error\n"); 384 test_failure(r, 385 "void foo() { if (false) x = 5; }", 386 "error: 1: unknown identifier 'x'\n1 error\n"); 387 test_failure(r, 388 "void foo() { true ? 5 : x; }", 389 "error: 1: unknown identifier 'x'\n1 error\n"); 390 test_failure(r, 391 "void foo() { false ? x : 5; }", 392 "error: 1: unknown identifier 'x'\n1 error\n"); 393 } 394 395 DEF_TEST(SkSLBadCap, r) { 396 test_failure(r, 397 "bool b = sk_Caps.bugFreeDriver;", 398 "error: 1: unknown capability flag 'bugFreeDriver'\n1 error\n"); 399 } 400 401 DEF_TEST(SkSLDivByZero, r) { 402 test_failure(r, 403 "int x = 1 / 0;", 404 "error: 1: division by zero\n1 error\n"); 405 test_failure(r, 406 "float x = 1 / 0;", 407 "error: 1: division by zero\n1 error\n"); 408 test_failure(r, 409 "float x = 1.0 / 0.0;", 410 "error: 1: division by zero\n1 error\n"); 411 test_failure(r, 412 "float x = -67.0 / (3.0 - 3);", 413 "error: 1: division by zero\n1 error\n"); 414 } 415 416 DEF_TEST(SkSLUnsupportedGLSLIdentifiers, r) { 417 test_failure(r, 418 "void main() { float x = gl_FragCoord.x; };", 419 "error: 1: unknown identifier 'gl_FragCoord'\n1 error\n"); 420 test_failure(r, 421 "void main() { float r = gl_FragColor.r; };", 422 "error: 1: unknown identifier 'gl_FragColor'\n1 error\n"); 423 } 424 425 DEF_TEST(SkSLWrongSwitchTypes, r) { 426 test_failure(r, 427 "void main() { switch (float2(1)) { case 1: break; } }", 428 "error: 1: expected 'int', but found 'float2'\n1 error\n"); 429 test_failure(r, 430 "void main() { switch (1) { case float2(1): break; } }", 431 "error: 1: expected 'int', but found 'float2'\n1 error\n"); 432 } 433 434 DEF_TEST(SkSLNonConstantCase, r) { 435 test_failure(r, 436 "void main() { int x = 1; switch (1) { case x: break; } }", 437 "error: 1: case value must be a constant\n1 error\n"); 438 } 439 440 DEF_TEST(SkSLDuplicateCase, r) { 441 test_failure(r, 442 "void main() { switch (1) { case 0: case 1: case 0: break; } }", 443 "error: 1: duplicate case value\n1 error\n"); 444 } 445 446 DEF_TEST(SkSLFieldAfterRuntimeArray, r) { 447 test_failure(r, 448 "buffer broken { float x[]; float y; };", 449 "error: 1: only the last entry in an interface block may be a runtime-sized " 450 "array\n1 error\n"); 451 } 452 453 DEF_TEST(SkSLStaticIf, r) { 454 test_success(r, 455 "void main() { float x = 5; float y = 10;" 456 "@if (x < y) { sk_FragColor = float4(1); } }"); 457 test_failure(r, 458 "void main() { float x = sqrt(25); float y = 10;" 459 "@if (x < y) { sk_FragColor = float4(1); } }", 460 "error: 1: static if has non-static test\n1 error\n"); 461 } 462 463 DEF_TEST(SkSLStaticSwitch, r) { 464 test_success(r, 465 "void main() {" 466 "int x = 1;" 467 "@switch (x) {" 468 "case 1: sk_FragColor = float4(1); break;" 469 "default: sk_FragColor = float4(0);" 470 "}" 471 "}"); 472 test_failure(r, 473 "void main() {" 474 "int x = int(sqrt(1));" 475 "@switch (x) {" 476 "case 1: sk_FragColor = float4(1); break;" 477 "default: sk_FragColor = float4(0);" 478 "}" 479 "}", 480 "error: 1: static switch has non-static test\n1 error\n"); 481 test_failure(r, 482 "void main() {" 483 "int x = 1;" 484 "@switch (x) {" 485 "case 1: sk_FragColor = float4(1); if (sqrt(0) < sqrt(1)) break;" 486 "default: sk_FragColor = float4(0);" 487 "}" 488 "}", 489 "error: 1: static switch contains non-static conditional break\n1 error\n"); 490 } 491 492 DEF_TEST(SkSLInterfaceBlockScope, r) { 493 test_failure(r, 494 "uniform testBlock {" 495 "float x;" 496 "} test[x];", 497 "error: 1: unknown identifier 'x'\n1 error\n"); 498 } 499 500 #endif 501
