1 // Copyright 2010 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef V8_RUNTIME_H_ 29 #define V8_RUNTIME_H_ 30 31 #include "zone.h" 32 33 namespace v8 { 34 namespace internal { 35 36 // The interface to C++ runtime functions. 37 38 // ---------------------------------------------------------------------------- 39 // RUNTIME_FUNCTION_LIST_ALWAYS defines runtime calls available in both 40 // release and debug mode. 41 // This macro should only be used by the macro RUNTIME_FUNCTION_LIST. 42 43 // WARNING: RUNTIME_FUNCTION_LIST_ALWAYS_* is a very large macro that caused 44 // MSVC Intellisense to crash. It was broken into two macros to work around 45 // this problem. Please avoid large recursive macros whenever possible. 46 #define RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \ 47 /* Property access */ \ 48 F(GetProperty, 2, 1) \ 49 F(KeyedGetProperty, 2, 1) \ 50 F(DeleteProperty, 3, 1) \ 51 F(HasLocalProperty, 2, 1) \ 52 F(HasProperty, 2, 1) \ 53 F(HasElement, 2, 1) \ 54 F(IsPropertyEnumerable, 2, 1) \ 55 F(GetPropertyNames, 1, 1) \ 56 F(GetPropertyNamesFast, 1, 1) \ 57 F(GetLocalPropertyNames, 1, 1) \ 58 F(GetLocalElementNames, 1, 1) \ 59 F(GetInterceptorInfo, 1, 1) \ 60 F(GetNamedInterceptorPropertyNames, 1, 1) \ 61 F(GetIndexedInterceptorElementNames, 1, 1) \ 62 F(GetArgumentsProperty, 1, 1) \ 63 F(ToFastProperties, 1, 1) \ 64 F(ToSlowProperties, 1, 1) \ 65 F(FinishArrayPrototypeSetup, 1, 1) \ 66 F(SpecialArrayFunctions, 1, 1) \ 67 F(GetGlobalReceiver, 0, 1) \ 68 \ 69 F(IsInPrototypeChain, 2, 1) \ 70 F(SetHiddenPrototype, 2, 1) \ 71 \ 72 F(IsConstructCall, 0, 1) \ 73 \ 74 F(GetOwnProperty, 2, 1) \ 75 \ 76 F(IsExtensible, 1, 1) \ 77 F(PreventExtensions, 1, 1)\ 78 \ 79 /* Utilities */ \ 80 F(GetFunctionDelegate, 1, 1) \ 81 F(GetConstructorDelegate, 1, 1) \ 82 F(NewArgumentsFast, 3, 1) \ 83 F(LazyCompile, 1, 1) \ 84 F(LazyRecompile, 1, 1) \ 85 F(NotifyDeoptimized, 1, 1) \ 86 F(NotifyOSR, 0, 1) \ 87 F(DeoptimizeFunction, 1, 1) \ 88 F(OptimizeFunctionOnNextCall, 1, 1) \ 89 F(CompileForOnStackReplacement, 1, 1) \ 90 F(SetNewFunctionAttributes, 1, 1) \ 91 F(AllocateInNewSpace, 1, 1) \ 92 \ 93 /* Array join support */ \ 94 F(PushIfAbsent, 2, 1) \ 95 F(ArrayConcat, 1, 1) \ 96 \ 97 /* Conversions */ \ 98 F(ToBool, 1, 1) \ 99 F(Typeof, 1, 1) \ 100 \ 101 F(StringToNumber, 1, 1) \ 102 F(StringFromCharCodeArray, 1, 1) \ 103 F(StringParseInt, 2, 1) \ 104 F(StringParseFloat, 1, 1) \ 105 F(StringToLowerCase, 1, 1) \ 106 F(StringToUpperCase, 1, 1) \ 107 F(StringSplit, 3, 1) \ 108 F(CharFromCode, 1, 1) \ 109 F(URIEscape, 1, 1) \ 110 F(URIUnescape, 1, 1) \ 111 F(QuoteJSONString, 1, 1) \ 112 F(QuoteJSONStringComma, 1, 1) \ 113 \ 114 F(NumberToString, 1, 1) \ 115 F(NumberToStringSkipCache, 1, 1) \ 116 F(NumberToInteger, 1, 1) \ 117 F(NumberToIntegerMapMinusZero, 1, 1) \ 118 F(NumberToJSUint32, 1, 1) \ 119 F(NumberToJSInt32, 1, 1) \ 120 F(NumberToSmi, 1, 1) \ 121 F(AllocateHeapNumber, 0, 1) \ 122 \ 123 /* Arithmetic operations */ \ 124 F(NumberAdd, 2, 1) \ 125 F(NumberSub, 2, 1) \ 126 F(NumberMul, 2, 1) \ 127 F(NumberDiv, 2, 1) \ 128 F(NumberMod, 2, 1) \ 129 F(NumberUnaryMinus, 1, 1) \ 130 F(NumberAlloc, 0, 1) \ 131 \ 132 F(StringAdd, 2, 1) \ 133 F(StringBuilderConcat, 3, 1) \ 134 F(StringBuilderJoin, 3, 1) \ 135 \ 136 /* Bit operations */ \ 137 F(NumberOr, 2, 1) \ 138 F(NumberAnd, 2, 1) \ 139 F(NumberXor, 2, 1) \ 140 F(NumberNot, 1, 1) \ 141 \ 142 F(NumberShl, 2, 1) \ 143 F(NumberShr, 2, 1) \ 144 F(NumberSar, 2, 1) \ 145 \ 146 /* Comparisons */ \ 147 F(NumberEquals, 2, 1) \ 148 F(StringEquals, 2, 1) \ 149 \ 150 F(NumberCompare, 3, 1) \ 151 F(SmiLexicographicCompare, 2, 1) \ 152 F(StringCompare, 2, 1) \ 153 \ 154 /* Math */ \ 155 F(Math_acos, 1, 1) \ 156 F(Math_asin, 1, 1) \ 157 F(Math_atan, 1, 1) \ 158 F(Math_atan2, 2, 1) \ 159 F(Math_ceil, 1, 1) \ 160 F(Math_cos, 1, 1) \ 161 F(Math_exp, 1, 1) \ 162 F(Math_floor, 1, 1) \ 163 F(Math_log, 1, 1) \ 164 F(Math_pow, 2, 1) \ 165 F(Math_pow_cfunction, 2, 1) \ 166 F(RoundNumber, 1, 1) \ 167 F(Math_sin, 1, 1) \ 168 F(Math_sqrt, 1, 1) \ 169 F(Math_tan, 1, 1) \ 170 \ 171 /* Regular expressions */ \ 172 F(RegExpCompile, 3, 1) \ 173 F(RegExpExec, 4, 1) \ 174 F(RegExpExecMultiple, 4, 1) \ 175 F(RegExpInitializeObject, 5, 1) \ 176 F(RegExpConstructResult, 3, 1) \ 177 \ 178 /* JSON */ \ 179 F(ParseJson, 1, 1) \ 180 \ 181 /* Strings */ \ 182 F(StringCharCodeAt, 2, 1) \ 183 F(StringIndexOf, 3, 1) \ 184 F(StringLastIndexOf, 3, 1) \ 185 F(StringLocaleCompare, 2, 1) \ 186 F(SubString, 3, 1) \ 187 F(StringReplaceRegExpWithString, 4, 1) \ 188 F(StringMatch, 3, 1) \ 189 F(StringTrim, 3, 1) \ 190 F(StringToArray, 2, 1) \ 191 F(NewStringWrapper, 1, 1) \ 192 \ 193 /* Numbers */ \ 194 F(NumberToRadixString, 2, 1) \ 195 F(NumberToFixed, 2, 1) \ 196 F(NumberToExponential, 2, 1) \ 197 F(NumberToPrecision, 2, 1) 198 199 #define RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \ 200 /* Reflection */ \ 201 F(FunctionSetInstanceClassName, 2, 1) \ 202 F(FunctionSetLength, 2, 1) \ 203 F(FunctionSetPrototype, 2, 1) \ 204 F(FunctionGetName, 1, 1) \ 205 F(FunctionSetName, 2, 1) \ 206 F(FunctionRemovePrototype, 1, 1) \ 207 F(FunctionGetSourceCode, 1, 1) \ 208 F(FunctionGetScript, 1, 1) \ 209 F(FunctionGetScriptSourcePosition, 1, 1) \ 210 F(FunctionGetPositionForOffset, 2, 1) \ 211 F(FunctionIsAPIFunction, 1, 1) \ 212 F(FunctionIsBuiltin, 1, 1) \ 213 F(GetScript, 1, 1) \ 214 F(CollectStackTrace, 2, 1) \ 215 F(GetV8Version, 0, 1) \ 216 \ 217 F(ClassOf, 1, 1) \ 218 F(SetCode, 2, 1) \ 219 F(SetExpectedNumberOfProperties, 2, 1) \ 220 \ 221 F(CreateApiFunction, 1, 1) \ 222 F(IsTemplate, 1, 1) \ 223 F(GetTemplateField, 2, 1) \ 224 F(DisableAccessChecks, 1, 1) \ 225 F(EnableAccessChecks, 1, 1) \ 226 \ 227 /* Dates */ \ 228 F(DateCurrentTime, 0, 1) \ 229 F(DateParseString, 2, 1) \ 230 F(DateLocalTimezone, 1, 1) \ 231 F(DateLocalTimeOffset, 0, 1) \ 232 F(DateDaylightSavingsOffset, 1, 1) \ 233 F(DateMakeDay, 3, 1) \ 234 F(DateYMDFromTime, 2, 1) \ 235 \ 236 /* Numbers */ \ 237 \ 238 /* Globals */ \ 239 F(CompileString, 1, 1) \ 240 F(GlobalPrint, 1, 1) \ 241 \ 242 /* Eval */ \ 243 F(GlobalReceiver, 1, 1) \ 244 F(ResolvePossiblyDirectEval, 4, 2) \ 245 F(ResolvePossiblyDirectEvalNoLookup, 4, 2) \ 246 \ 247 F(SetProperty, -1 /* 4 or 5 */, 1) \ 248 F(DefineOrRedefineDataProperty, 4, 1) \ 249 F(DefineOrRedefineAccessorProperty, 5, 1) \ 250 F(IgnoreAttributesAndSetProperty, -1 /* 3 or 4 */, 1) \ 251 \ 252 /* Arrays */ \ 253 F(RemoveArrayHoles, 2, 1) \ 254 F(GetArrayKeys, 2, 1) \ 255 F(MoveArrayContents, 2, 1) \ 256 F(EstimateNumberOfElements, 1, 1) \ 257 F(SwapElements, 3, 1) \ 258 \ 259 /* Getters and Setters */ \ 260 F(DefineAccessor, -1 /* 4 or 5 */, 1) \ 261 F(LookupAccessor, 3, 1) \ 262 \ 263 /* Literals */ \ 264 F(MaterializeRegExpLiteral, 4, 1)\ 265 F(CreateArrayLiteralBoilerplate, 3, 1) \ 266 F(CloneLiteralBoilerplate, 1, 1) \ 267 F(CloneShallowLiteralBoilerplate, 1, 1) \ 268 F(CreateObjectLiteral, 4, 1) \ 269 F(CreateObjectLiteralShallow, 4, 1) \ 270 F(CreateArrayLiteral, 3, 1) \ 271 F(CreateArrayLiteralShallow, 3, 1) \ 272 \ 273 /* Catch context extension objects */ \ 274 F(CreateCatchExtensionObject, 2, 1) \ 275 \ 276 /* Statements */ \ 277 F(NewClosure, 3, 1) \ 278 F(NewObject, 1, 1) \ 279 F(NewObjectFromBound, 2, 1) \ 280 F(FinalizeInstanceSize, 1, 1) \ 281 F(Throw, 1, 1) \ 282 F(ReThrow, 1, 1) \ 283 F(ThrowReferenceError, 1, 1) \ 284 F(StackGuard, 0, 1) \ 285 F(PromoteScheduledException, 0, 1) \ 286 \ 287 /* Contexts */ \ 288 F(NewContext, 1, 1) \ 289 F(PushContext, 1, 1) \ 290 F(PushCatchContext, 1, 1) \ 291 F(DeleteContextSlot, 2, 1) \ 292 F(LoadContextSlot, 2, 2) \ 293 F(LoadContextSlotNoReferenceError, 2, 2) \ 294 F(StoreContextSlot, 4, 1) \ 295 \ 296 /* Declarations and initialization */ \ 297 F(DeclareGlobals, 4, 1) \ 298 F(DeclareContextSlot, 4, 1) \ 299 F(InitializeVarGlobal, -1 /* 2 or 3 */, 1) \ 300 F(InitializeConstGlobal, 2, 1) \ 301 F(InitializeConstContextSlot, 3, 1) \ 302 F(OptimizeObjectForAddingMultipleProperties, 2, 1) \ 303 \ 304 /* Debugging */ \ 305 F(DebugPrint, 1, 1) \ 306 F(DebugTrace, 0, 1) \ 307 F(TraceEnter, 0, 1) \ 308 F(TraceExit, 1, 1) \ 309 F(Abort, 2, 1) \ 310 /* Logging */ \ 311 F(Log, 2, 1) \ 312 /* ES5 */ \ 313 F(LocalKeys, 1, 1) \ 314 /* Cache suport */ \ 315 F(GetFromCache, 2, 1) \ 316 \ 317 /* Message objects */ \ 318 F(NewMessageObject, 2, 1) \ 319 F(MessageGetType, 1, 1) \ 320 F(MessageGetArguments, 1, 1) \ 321 F(MessageGetStartPosition, 1, 1) \ 322 F(MessageGetScript, 1, 1) \ 323 \ 324 /* Pseudo functions - handled as macros by parser */ \ 325 F(IS_VAR, 1, 1) 326 327 #ifdef ENABLE_DEBUGGER_SUPPORT 328 #define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) \ 329 /* Debugger support*/ \ 330 F(DebugBreak, 0, 1) \ 331 F(SetDebugEventListener, 2, 1) \ 332 F(Break, 0, 1) \ 333 F(DebugGetPropertyDetails, 2, 1) \ 334 F(DebugGetProperty, 2, 1) \ 335 F(DebugPropertyTypeFromDetails, 1, 1) \ 336 F(DebugPropertyAttributesFromDetails, 1, 1) \ 337 F(DebugPropertyIndexFromDetails, 1, 1) \ 338 F(DebugNamedInterceptorPropertyValue, 2, 1) \ 339 F(DebugIndexedInterceptorElementValue, 2, 1) \ 340 F(CheckExecutionState, 1, 1) \ 341 F(GetFrameCount, 1, 1) \ 342 F(GetFrameDetails, 2, 1) \ 343 F(GetScopeCount, 2, 1) \ 344 F(GetScopeDetails, 3, 1) \ 345 F(DebugPrintScopes, 0, 1) \ 346 F(GetThreadCount, 1, 1) \ 347 F(GetThreadDetails, 2, 1) \ 348 F(SetDisableBreak, 1, 1) \ 349 F(GetBreakLocations, 1, 1) \ 350 F(SetFunctionBreakPoint, 3, 1) \ 351 F(SetScriptBreakPoint, 3, 1) \ 352 F(ClearBreakPoint, 1, 1) \ 353 F(ChangeBreakOnException, 2, 1) \ 354 F(IsBreakOnException, 1, 1) \ 355 F(PrepareStep, 3, 1) \ 356 F(ClearStepping, 0, 1) \ 357 F(DebugEvaluate, 5, 1) \ 358 F(DebugEvaluateGlobal, 4, 1) \ 359 F(DebugGetLoadedScripts, 0, 1) \ 360 F(DebugReferencedBy, 3, 1) \ 361 F(DebugConstructedBy, 2, 1) \ 362 F(DebugGetPrototype, 1, 1) \ 363 F(SystemBreak, 0, 1) \ 364 F(DebugDisassembleFunction, 1, 1) \ 365 F(DebugDisassembleConstructor, 1, 1) \ 366 F(FunctionGetInferredName, 1, 1) \ 367 F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \ 368 F(LiveEditGatherCompileInfo, 2, 1) \ 369 F(LiveEditReplaceScript, 3, 1) \ 370 F(LiveEditReplaceFunctionCode, 2, 1) \ 371 F(LiveEditFunctionSourceUpdated, 1, 1) \ 372 F(LiveEditFunctionSetScript, 2, 1) \ 373 F(LiveEditReplaceRefToNestedFunction, 3, 1) \ 374 F(LiveEditPatchFunctionPositions, 2, 1) \ 375 F(LiveEditCheckAndDropActivations, 2, 1) \ 376 F(LiveEditCompareStrings, 2, 1) \ 377 F(GetFunctionCodePositionFromSource, 2, 1) \ 378 F(ExecuteInDebugContext, 2, 1) \ 379 \ 380 F(SetFlags, 1, 1) \ 381 F(CollectGarbage, 1, 1) \ 382 F(GetHeapUsage, 0, 1) \ 383 \ 384 /* LiveObjectList support*/ \ 385 F(HasLOLEnabled, 0, 1) \ 386 F(CaptureLOL, 0, 1) \ 387 F(DeleteLOL, 1, 1) \ 388 F(DumpLOL, 5, 1) \ 389 F(GetLOLObj, 1, 1) \ 390 F(GetLOLObjId, 1, 1) \ 391 F(GetLOLObjRetainers, 6, 1) \ 392 F(GetLOLPath, 3, 1) \ 393 F(InfoLOL, 2, 1) \ 394 F(PrintLOLObj, 1, 1) \ 395 F(ResetLOL, 0, 1) \ 396 F(SummarizeLOL, 3, 1) 397 398 #else 399 #define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) 400 #endif 401 402 #ifdef ENABLE_LOGGING_AND_PROFILING 403 #define RUNTIME_FUNCTION_LIST_PROFILER_SUPPORT(F) \ 404 F(ProfilerResume, 2, 1) \ 405 F(ProfilerPause, 2, 1) 406 #else 407 #define RUNTIME_FUNCTION_LIST_PROFILER_SUPPORT(F) 408 #endif 409 410 #ifdef DEBUG 411 #define RUNTIME_FUNCTION_LIST_DEBUG(F) \ 412 /* Testing */ \ 413 F(ListNatives, 0, 1) 414 #else 415 #define RUNTIME_FUNCTION_LIST_DEBUG(F) 416 #endif 417 418 // ---------------------------------------------------------------------------- 419 // RUNTIME_FUNCTION_LIST defines all runtime functions accessed 420 // either directly by id (via the code generator), or indirectly 421 // via a native call by name (from within JS code). 422 423 #define RUNTIME_FUNCTION_LIST(F) \ 424 RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \ 425 RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \ 426 RUNTIME_FUNCTION_LIST_DEBUG(F) \ 427 RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) \ 428 RUNTIME_FUNCTION_LIST_PROFILER_SUPPORT(F) 429 430 // ---------------------------------------------------------------------------- 431 // INLINE_FUNCTION_LIST defines all inlined functions accessed 432 // with a native call of the form %_name from within JS code. 433 // Entries have the form F(name, number of arguments, number of return values). 434 #define INLINE_FUNCTION_LIST(F) \ 435 F(IsSmi, 1, 1) \ 436 F(IsNonNegativeSmi, 1, 1) \ 437 F(IsArray, 1, 1) \ 438 F(IsRegExp, 1, 1) \ 439 F(CallFunction, -1 /* receiver + n args + function */, 1) \ 440 F(ArgumentsLength, 0, 1) \ 441 F(Arguments, 1, 1) \ 442 F(ValueOf, 1, 1) \ 443 F(SetValueOf, 2, 1) \ 444 F(StringCharFromCode, 1, 1) \ 445 F(StringCharAt, 2, 1) \ 446 F(ObjectEquals, 2, 1) \ 447 F(RandomHeapNumber, 0, 1) \ 448 F(IsObject, 1, 1) \ 449 F(IsFunction, 1, 1) \ 450 F(IsUndetectableObject, 1, 1) \ 451 F(IsSpecObject, 1, 1) \ 452 F(IsStringWrapperSafeForDefaultValueOf, 1, 1) \ 453 F(MathPow, 2, 1) \ 454 F(MathSin, 1, 1) \ 455 F(MathCos, 1, 1) \ 456 F(MathSqrt, 1, 1) \ 457 F(MathLog, 1, 1) \ 458 F(IsRegExpEquivalent, 2, 1) \ 459 F(HasCachedArrayIndex, 1, 1) \ 460 F(GetCachedArrayIndex, 1, 1) \ 461 F(FastAsciiArrayJoin, 2, 1) 462 463 464 // ---------------------------------------------------------------------------- 465 // INLINE_AND_RUNTIME_FUNCTION_LIST defines all inlined functions accessed 466 // with a native call of the form %_name from within JS code that also have 467 // a corresponding runtime function, that is called for slow cases. 468 // Entries have the form F(name, number of arguments, number of return values). 469 #define INLINE_RUNTIME_FUNCTION_LIST(F) \ 470 F(IsConstructCall, 0, 1) \ 471 F(ClassOf, 1, 1) \ 472 F(StringCharCodeAt, 2, 1) \ 473 F(Log, 3, 1) \ 474 F(StringAdd, 2, 1) \ 475 F(SubString, 3, 1) \ 476 F(StringCompare, 2, 1) \ 477 F(RegExpExec, 4, 1) \ 478 F(RegExpConstructResult, 3, 1) \ 479 F(GetFromCache, 2, 1) \ 480 F(NumberToString, 1, 1) \ 481 F(SwapElements, 3, 1) 482 483 484 //--------------------------------------------------------------------------- 485 // Runtime provides access to all C++ runtime functions. 486 487 class RuntimeState { 488 public: 489 490 StaticResource<StringInputBuffer>* string_input_buffer() { 491 return &string_input_buffer_; 492 } 493 unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() { 494 return &to_upper_mapping_; 495 } 496 unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() { 497 return &to_lower_mapping_; 498 } 499 StringInputBuffer* string_input_buffer_compare_bufx() { 500 return &string_input_buffer_compare_bufx_; 501 } 502 StringInputBuffer* string_input_buffer_compare_bufy() { 503 return &string_input_buffer_compare_bufy_; 504 } 505 StringInputBuffer* string_locale_compare_buf1() { 506 return &string_locale_compare_buf1_; 507 } 508 StringInputBuffer* string_locale_compare_buf2() { 509 return &string_locale_compare_buf2_; 510 } 511 int* smi_lexicographic_compare_x_elms() { 512 return smi_lexicographic_compare_x_elms_; 513 } 514 int* smi_lexicographic_compare_y_elms() { 515 return smi_lexicographic_compare_y_elms_; 516 } 517 518 private: 519 RuntimeState() {} 520 // Non-reentrant string buffer for efficient general use in the runtime. 521 StaticResource<StringInputBuffer> string_input_buffer_; 522 unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_; 523 unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_; 524 StringInputBuffer string_input_buffer_compare_bufx_; 525 StringInputBuffer string_input_buffer_compare_bufy_; 526 StringInputBuffer string_locale_compare_buf1_; 527 StringInputBuffer string_locale_compare_buf2_; 528 int smi_lexicographic_compare_x_elms_[10]; 529 int smi_lexicographic_compare_y_elms_[10]; 530 531 friend class Isolate; 532 friend class Runtime; 533 534 DISALLOW_COPY_AND_ASSIGN(RuntimeState); 535 }; 536 537 538 class Runtime : public AllStatic { 539 public: 540 enum FunctionId { 541 #define F(name, nargs, ressize) k##name, 542 RUNTIME_FUNCTION_LIST(F) 543 #undef F 544 #define F(name, nargs, ressize) kInline##name, 545 INLINE_FUNCTION_LIST(F) 546 INLINE_RUNTIME_FUNCTION_LIST(F) 547 #undef F 548 kNumFunctions, 549 kFirstInlineFunction = kInlineIsSmi 550 }; 551 552 enum IntrinsicType { 553 RUNTIME, 554 INLINE 555 }; 556 557 // Intrinsic function descriptor. 558 struct Function { 559 FunctionId function_id; 560 IntrinsicType intrinsic_type; 561 // The JS name of the function. 562 const char* name; 563 564 // The C++ (native) entry point. NULL if the function is inlined. 565 byte* entry; 566 567 // The number of arguments expected. nargs is -1 if the function takes 568 // a variable number of arguments. 569 int nargs; 570 // Size of result. Most functions return a single pointer, size 1. 571 int result_size; 572 }; 573 574 static const int kNotFound = -1; 575 576 // Add symbols for all the intrinsic function names to a StringDictionary. 577 // Returns failure if an allocation fails. In this case, it must be 578 // retried with a new, empty StringDictionary, not with the same one. 579 // Alternatively, heap initialization can be completely restarted. 580 MUST_USE_RESULT static MaybeObject* InitializeIntrinsicFunctionNames( 581 Heap* heap, Object* dictionary); 582 583 // Get the intrinsic function with the given name, which must be a symbol. 584 static const Function* FunctionForSymbol(Handle<String> name); 585 586 // Get the intrinsic function with the given FunctionId. 587 static const Function* FunctionForId(FunctionId id); 588 589 // General-purpose helper functions for runtime system. 590 static int StringMatch(Isolate* isolate, 591 Handle<String> sub, 592 Handle<String> pat, 593 int index); 594 595 static bool IsUpperCaseChar(RuntimeState* runtime_state, uint16_t ch); 596 597 // TODO(1240886): The following three methods are *not* handle safe, 598 // but accept handle arguments. This seems fragile. 599 600 // Support getting the characters in a string using [] notation as 601 // in Firefox/SpiderMonkey, Safari and Opera. 602 MUST_USE_RESULT static MaybeObject* GetElementOrCharAt(Isolate* isolate, 603 Handle<Object> object, 604 uint32_t index); 605 MUST_USE_RESULT static MaybeObject* GetElement(Handle<Object> object, 606 uint32_t index); 607 608 MUST_USE_RESULT static MaybeObject* SetObjectProperty( 609 Isolate* isolate, 610 Handle<Object> object, 611 Handle<Object> key, 612 Handle<Object> value, 613 PropertyAttributes attr, 614 StrictModeFlag strict_mode); 615 616 MUST_USE_RESULT static MaybeObject* ForceSetObjectProperty( 617 Isolate* isolate, 618 Handle<JSObject> object, 619 Handle<Object> key, 620 Handle<Object> value, 621 PropertyAttributes attr); 622 623 MUST_USE_RESULT static MaybeObject* ForceDeleteObjectProperty( 624 Isolate* isolate, 625 Handle<JSObject> object, 626 Handle<Object> key); 627 628 MUST_USE_RESULT static MaybeObject* GetObjectProperty( 629 Isolate* isolate, 630 Handle<Object> object, 631 Handle<Object> key); 632 633 // This function is used in FunctionNameUsing* tests. 634 static Object* FindSharedFunctionInfoInScript(Isolate* isolate, 635 Handle<Script> script, 636 int position); 637 638 // Helper functions used stubs. 639 static void PerformGC(Object* result); 640 }; 641 642 } } // namespace v8::internal 643 644 #endif // V8_RUNTIME_H_ 645
