src/runtime/runtime.h

   1 // Copyright 2012 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef V8_RUNTIME_RUNTIME_H_
   6 #define V8_RUNTIME_RUNTIME_H_
   7
   8 #include "src/allocation.h"
   9 #include "src/objects.h"
  10 #include "src/zone.h"
  11
  12 namespace v8 {
  13 namespace internal {
  14
  15 // * Each intrinsic is consistently exposed in JavaScript via 2 names:
  16 //    * %#name, which is always a runtime call.
  17 //    * %_#name, which can be inlined or just a runtime call, the compiler in
  18 //      question decides.
  19 //
  20 // * IntrinsicTypes are Runtime::RUNTIME and Runtime::INLINE, respectively.
  21 //
  22 // * IDs are Runtime::k##name and Runtime::kInline##name, respectively.
  23 //
  24 // * All intrinsics have a C++ implementation Runtime_##name.
  25 //
  26 // * Each compiler has an explicit list of intrisics it supports, falling back
  27 //   to a simple runtime call if necessary.
  28
  29
  30 // Entries have the form F(name, number of arguments, number of values):
  31
  32 #define FOR_EACH_INTRINSIC_ARRAY(F)         \
  33   F(FinishArrayPrototypeSetup, 1, 1)        \
  34   F(SpecialArrayFunctions, 0, 1)            \
  35   F(TransitionElementsKind, 2, 1)           \
  36   F(PushIfAbsent, 2, 1)                     \
  37   F(ArrayConcat, 1, 1)                      \
  38   F(RemoveArrayHoles, 2, 1)                 \
  39   F(MoveArrayContents, 2, 1)                \
  40   F(EstimateNumberOfElements, 1, 1)         \
  41   F(GetArrayKeys, 2, 1)                     \
  42   F(ArrayConstructor, -1, 1)                \
  43   F(ArrayConstructorWithSubclassing, -1, 1) \
  44   F(InternalArrayConstructor, -1, 1)        \
  45   F(NormalizeElements, 1, 1)                \
  46   F(GrowArrayElements, 2, 1)                \
  47   F(HasComplexElements, 1, 1)               \
  48   F(IsArray, 1, 1)                          \
  49   F(HasCachedArrayIndex, 1, 1)              \
  50   F(GetCachedArrayIndex, 1, 1)              \
  51   F(FixedArrayGet, 2, 1)                    \
  52   F(FixedArraySet, 3, 1)                    \
  53   F(FastOneByteArrayJoin, 2, 1)
  54
  55
  56 #define FOR_EACH_INTRINSIC_ATOMICS(F) \
  57   F(AtomicsCompareExchange, 4, 1)     \
  58   F(AtomicsLoad, 2, 1)                \
  59   F(AtomicsStore, 3, 1)               \
  60   F(AtomicsAdd, 3, 1)                 \
  61   F(AtomicsSub, 3, 1)                 \
  62   F(AtomicsAnd, 3, 1)                 \
  63   F(AtomicsOr, 3, 1)                  \
  64   F(AtomicsXor, 3, 1)                 \
  65   F(AtomicsExchange, 3, 1)            \
  66   F(AtomicsIsLockFree, 1, 1)
  67
  68
  69 #define FOR_EACH_INTRINSIC_FUTEX(F)  \
  70   F(AtomicsFutexWait, 4, 1)          \
  71   F(AtomicsFutexWake, 3, 1)          \
  72   F(AtomicsFutexWakeOrRequeue, 5, 1) \
  73   F(AtomicsFutexNumWaitersForTesting, 2, 1)
  74
  75
  76 #define FOR_EACH_INTRINSIC_CLASSES(F)         \
  77   F(ThrowNonMethodError, 0, 1)                \
  78   F(ThrowUnsupportedSuperError, 0, 1)         \
  79   F(ThrowConstructorNonCallableError, 0, 1)   \
  80   F(ThrowArrayNotSubclassableError, 0, 1)     \
  81   F(ThrowStaticPrototypeError, 0, 1)          \
  82   F(ThrowIfStaticPrototype, 1, 1)             \
  83   F(ToMethod, 2, 1)                           \
  84   F(HomeObjectSymbol, 0, 1)                   \
  85   F(DefineClass, 6, 1)                        \
  86   F(DefineClassStrong, 6, 1)                  \
  87   F(DefineClassMethod, 3, 1)                  \
  88   F(ClassGetSourceCode, 1, 1)                 \
  89   F(LoadFromSuper, 4, 1)                      \
  90   F(LoadKeyedFromSuper, 4, 1)                 \
  91   F(StoreToSuper_Strict, 4, 1)                \
  92   F(StoreToSuper_Sloppy, 4, 1)                \
  93   F(StoreKeyedToSuper_Strict, 4, 1)           \
  94   F(StoreKeyedToSuper_Sloppy, 4, 1)           \
  95   F(HandleStepInForDerivedConstructors, 1, 1) \
  96   F(DefaultConstructorCallSuper, 2, 1)
  97
  98
  99 #define FOR_EACH_INTRINSIC_COLLECTIONS(F) \
 100   F(StringGetRawHashField, 1, 1)          \
 101   F(TheHole, 0, 1)                        \
 102   F(JSCollectionGetTable, 1, 1)           \
 103   F(GenericHash, 1, 1)                    \
 104   F(SetInitialize, 1, 1)                  \
 105   F(SetGrow, 1, 1)                        \
 106   F(SetShrink, 1, 1)                      \
 107   F(SetClear, 1, 1)                       \
 108   F(SetIteratorInitialize, 3, 1)          \
 109   F(SetIteratorClone, 1, 1)               \
 110   F(SetIteratorNext, 2, 1)                \
 111   F(SetIteratorDetails, 1, 1)             \
 112   F(MapInitialize, 1, 1)                  \
 113   F(MapShrink, 1, 1)                      \
 114   F(MapClear, 1, 1)                       \
 115   F(MapGrow, 1, 1)                        \
 116   F(MapIteratorInitialize, 3, 1)          \
 117   F(MapIteratorClone, 1, 1)               \
 118   F(MapIteratorDetails, 1, 1)             \
 119   F(GetWeakMapEntries, 2, 1)              \
 120   F(MapIteratorNext, 2, 1)                \
 121   F(WeakCollectionInitialize, 1, 1)       \
 122   F(WeakCollectionGet, 3, 1)              \
 123   F(WeakCollectionHas, 3, 1)              \
 124   F(WeakCollectionDelete, 3, 1)           \
 125   F(WeakCollectionSet, 4, 1)              \
 126   F(GetWeakSetValues, 2, 1)               \
 127   F(ObservationWeakMapCreate, 0, 1)
 128
 129
 130 #define FOR_EACH_INTRINSIC_COMPILER(F)  \
 131   F(CompileLazy, 1, 1)                  \
 132   F(CompileOptimized, 2, 1)             \
 133   F(NotifyStubFailure, 0, 1)            \
 134   F(NotifyDeoptimized, 1, 1)            \
 135   F(CompileForOnStackReplacement, 1, 1) \
 136   F(TryInstallOptimizedCode, 1, 1)      \
 137   F(CompileString, 2, 1)                \
 138   F(ResolvePossiblyDirectEval, 5, 1)
 139
 140
 141 #define FOR_EACH_INTRINSIC_DATE(F) \
 142   F(DateMakeDay, 2, 1)             \
 143   F(DateSetValue, 3, 1)            \
 144   F(IsDate, 1, 1)                  \
 145   F(ThrowNotDateError, 0, 1)       \
 146   F(DateCurrentTime, 0, 1)         \
 147   F(DateParseString, 2, 1)         \
 148   F(DateLocalTimezone, 1, 1)       \
 149   F(DateToUTC, 1, 1)               \
 150   F(DateCacheVersion, 0, 1)        \
 151   F(DateField, 2 /* date object, field index */, 1)
 152
 153
 154 #define FOR_EACH_INTRINSIC_DEBUG(F)            \
 155   F(HandleDebuggerStatement, 0, 1)             \
 156   F(DebugBreak, 0, 1)                          \
 157   F(SetDebugEventListener, 2, 1)               \
 158   F(ScheduleBreak, 0, 1)                       \
 159   F(DebugGetInternalProperties, 1, 1)          \
 160   F(DebugGetPropertyDetails, 2, 1)             \
 161   F(DebugGetProperty, 2, 1)                    \
 162   F(DebugPropertyTypeFromDetails, 1, 1)        \
 163   F(DebugPropertyAttributesFromDetails, 1, 1)  \
 164   F(DebugPropertyIndexFromDetails, 1, 1)       \
 165   F(DebugNamedInterceptorPropertyValue, 2, 1)  \
 166   F(DebugIndexedInterceptorElementValue, 2, 1) \
 167   F(CheckExecutionState, 1, 1)                 \
 168   F(GetFrameCount, 1, 1)                       \
 169   F(GetFrameDetails, 2, 1)                     \
 170   F(GetScopeCount, 2, 1)                       \
 171   F(GetStepInPositions, 2, 1)                  \
 172   F(GetScopeDetails, 4, 1)                     \
 173   F(GetAllScopesDetails, 4, 1)                 \
 174   F(GetFunctionScopeCount, 1, 1)               \
 175   F(GetFunctionScopeDetails, 2, 1)             \
 176   F(SetScopeVariableValue, 6, 1)               \
 177   F(DebugPrintScopes, 0, 1)                    \
 178   F(GetThreadCount, 1, 1)                      \
 179   F(GetThreadDetails, 2, 1)                    \
 180   F(SetDisableBreak, 1, 1)                     \
 181   F(GetBreakLocations, 2, 1)                   \
 182   F(SetFunctionBreakPoint, 3, 1)               \
 183   F(SetScriptBreakPoint, 4, 1)                 \
 184   F(ClearBreakPoint, 1, 1)                     \
 185   F(ChangeBreakOnException, 2, 1)              \
 186   F(IsBreakOnException, 1, 1)                  \
 187   F(PrepareStep, 4, 1)                         \
 188   F(ClearStepping, 0, 1)                       \
 189   F(DebugEvaluate, 6, 1)                       \
 190   F(DebugEvaluateGlobal, 4, 1)                 \
 191   F(DebugGetLoadedScripts, 0, 1)               \
 192   F(DebugReferencedBy, 3, 1)                   \
 193   F(DebugConstructedBy, 2, 1)                  \
 194   F(DebugGetPrototype, 1, 1)                   \
 195   F(DebugSetScriptSource, 2, 1)                \
 196   F(FunctionGetInferredName, 1, 1)             \
 197   F(GetFunctionCodePositionFromSource, 2, 1)   \
 198   F(ExecuteInDebugContext, 1, 1)               \
 199   F(GetDebugContext, 0, 1)                     \
 200   F(CollectGarbage, 1, 1)                      \
 201   F(GetHeapUsage, 0, 1)                        \
 202   F(GetScript, 1, 1)                           \
 203   F(DebugCallbackSupportsStepping, 1, 1)       \
 204   F(DebugPrepareStepInIfStepping, 1, 1)        \
 205   F(DebugPushPromise, 2, 1)                    \
 206   F(DebugPopPromise, 0, 1)                     \
 207   F(DebugPromiseEvent, 1, 1)                   \
 208   F(DebugAsyncTaskEvent, 1, 1)                 \
 209   F(DebugIsActive, 0, 1)                       \
 210   F(DebugBreakInOptimizedCode, 0, 1)
 211
 212
 213 #define FOR_EACH_INTRINSIC_FORIN(F) \
 214   F(ForInDone, 2, 1)                \
 215   F(ForInFilter, 2, 1)              \
 216   F(ForInNext, 4, 1)                \
 217   F(ForInStep, 1, 1)
 218
 219
 220 #define FOR_EACH_INTRINSIC_FUNCTION(F)                      \
 221   F(IsSloppyModeFunction, 1, 1)                             \
 222   F(FunctionGetName, 1, 1)                                  \
 223   F(FunctionSetName, 2, 1)                                  \
 224   F(FunctionNameShouldPrintAsAnonymous, 1, 1)               \
 225   F(FunctionMarkNameShouldPrintAsAnonymous, 1, 1)           \
 226   F(FunctionIsArrow, 1, 1)                                  \
 227   F(FunctionIsConciseMethod, 1, 1)                          \
 228   F(FunctionRemovePrototype, 1, 1)                          \
 229   F(FunctionGetScript, 1, 1)                                \
 230   F(FunctionGetSourceCode, 1, 1)                            \
 231   F(FunctionGetScriptSourcePosition, 1, 1)                  \
 232   F(FunctionGetPositionForOffset, 2, 1)                     \
 233   F(FunctionSetInstanceClassName, 2, 1)                     \
 234   F(FunctionSetLength, 2, 1)                                \
 235   F(FunctionSetPrototype, 2, 1)                             \
 236   F(FunctionIsAPIFunction, 1, 1)                            \
 237   F(FunctionIsBuiltin, 1, 1)                                \
 238   F(SetCode, 2, 1)                                          \
 239   F(SetNativeFlag, 1, 1)                                    \
 240   F(ThrowStrongModeTooFewArguments, 0, 1)                   \
 241   F(IsConstructor, 1, 1)                                    \
 242   F(SetForceInlineFlag, 1, 1)                               \
 243   F(FunctionBindArguments, 4, 1)                            \
 244   F(BoundFunctionGetBindings, 1, 1)                         \
 245   F(NewObjectFromBound, 1, 1)                               \
 246   F(Call, -1 /* >= 2 */, 1)                                 \
 247   F(Apply, 5, 1)                                            \
 248   F(GetFunctionDelegate, 1, 1)                              \
 249   F(GetConstructorDelegate, 1, 1)                           \
 250   F(GetOriginalConstructor, 0, 1)                           \
 251   F(CallFunction, -1 /* receiver + n args + function */, 1) \
 252   F(IsConstructCall, 0, 1)                                  \
 253   F(IsFunction, 1, 1)
 254
 255
 256 #define FOR_EACH_INTRINSIC_GENERATOR(F) \
 257   F(CreateJSGeneratorObject, 0, 1)      \
 258   F(SuspendJSGeneratorObject, -1, 1)    \
 259   F(ResumeJSGeneratorObject, 3, 1)      \
 260   F(GeneratorClose, 1, 1)               \
 261   F(GeneratorGetFunction, 1, 1)         \
 262   F(GeneratorGetContext, 1, 1)          \
 263   F(GeneratorGetReceiver, 1, 1)         \
 264   F(GeneratorGetContinuation, 1, 1)     \
 265   F(GeneratorGetSourcePosition, 1, 1)   \
 266   F(FunctionIsGenerator, 1, 1)          \
 267   F(GeneratorNext, 2, 1)                \
 268   F(GeneratorThrow, 2, 1)
 269
 270
 271 #ifdef V8_I18N_SUPPORT
 272 #define FOR_EACH_INTRINSIC_I18N(F)           \
 273   F(CanonicalizeLanguageTag, 1, 1)           \
 274   F(AvailableLocalesOf, 1, 1)                \
 275   F(GetDefaultICULocale, 0, 1)               \
 276   F(GetLanguageTagVariants, 1, 1)            \
 277   F(IsInitializedIntlObject, 1, 1)           \
 278   F(IsInitializedIntlObjectOfType, 2, 1)     \
 279   F(MarkAsInitializedIntlObjectOfType, 3, 1) \
 280   F(GetImplFromInitializedIntlObject, 1, 1)  \
 281   F(CreateDateTimeFormat, 3, 1)              \
 282   F(InternalDateFormat, 2, 1)                \
 283   F(InternalDateParse, 2, 1)                 \
 284   F(CreateNumberFormat, 3, 1)                \
 285   F(InternalNumberFormat, 2, 1)              \
 286   F(InternalNumberParse, 2, 1)               \
 287   F(CreateCollator, 3, 1)                    \
 288   F(InternalCompare, 3, 1)                   \
 289   F(StringNormalize, 2, 1)                   \
 290   F(CreateBreakIterator, 3, 1)               \
 291   F(BreakIteratorAdoptText, 2, 1)            \
 292   F(BreakIteratorFirst, 1, 1)                \
 293   F(BreakIteratorNext, 1, 1)                 \
 294   F(BreakIteratorCurrent, 1, 1)              \
 295   F(BreakIteratorBreakType, 1, 1)
 296 #else
 297 #define FOR_EACH_INTRINSIC_I18N(F)
 298 #endif
 299
 300
 301 #define FOR_EACH_INTRINSIC_INTERNAL(F)        \
 302   F(CheckIsBootstrapping, 0, 1)               \
 303   F(Throw, 1, 1)                              \
 304   F(ReThrow, 1, 1)                            \
 305   F(UnwindAndFindExceptionHandler, 0, 1)      \
 306   F(PromoteScheduledException, 0, 1)          \
 307   F(ThrowReferenceError, 1, 1)                \
 308   F(NewTypeError, 2, 1)                       \
 309   F(NewSyntaxError, 2, 1)                     \
 310   F(NewReferenceError, 2, 1)                  \
 311   F(ThrowIteratorResultNotAnObject, 1, 1)     \
 312   F(ThrowStrongModeImplicitConversion, 0, 1)  \
 313   F(PromiseRejectEvent, 3, 1)                 \
 314   F(PromiseRevokeReject, 1, 1)                \
 315   F(PromiseHasHandlerSymbol, 0, 1)            \
 316   F(StackGuard, 0, 1)                         \
 317   F(Interrupt, 0, 1)                          \
 318   F(AllocateInNewSpace, 1, 1)                 \
 319   F(AllocateInTargetSpace, 2, 1)              \
 320   F(CollectStackTrace, 2, 1)                  \
 321   F(RenderCallSite, 0, 1)                     \
 322   F(GetFromCacheRT, 2, 1)                     \
 323   F(MessageGetStartPosition, 1, 1)            \
 324   F(MessageGetScript, 1, 1)                   \
 325   F(FormatMessageString, 4, 1)                \
 326   F(CallSiteGetFileNameRT, 3, 1)              \
 327   F(CallSiteGetFunctionNameRT, 3, 1)          \
 328   F(CallSiteGetScriptNameOrSourceUrlRT, 3, 1) \
 329   F(CallSiteGetMethodNameRT, 3, 1)            \
 330   F(CallSiteGetLineNumberRT, 3, 1)            \
 331   F(CallSiteGetColumnNumberRT, 3, 1)          \
 332   F(CallSiteIsNativeRT, 3, 1)                 \
 333   F(CallSiteIsToplevelRT, 3, 1)               \
 334   F(CallSiteIsEvalRT, 3, 1)                   \
 335   F(CallSiteIsConstructorRT, 3, 1)            \
 336   F(IS_VAR, 1, 1)                             \
 337   F(GetFromCache, 2, 1)                       \
 338   F(IncrementStatsCounter, 1, 1)              \
 339   F(Likely, 1, 1)                             \
 340   F(Unlikely, 1, 1)                           \
 341   F(HarmonyToString, 0, 1)                    \
 342   F(GetTypeFeedbackVector, 1, 1)              \
 343   F(GetCallerJSFunction, 0, 1)                \
 344   F(GetCodeStubExportsObject, 0, 1)
 345
 346
 347 #define FOR_EACH_INTRINSIC_JSON(F) \
 348   F(QuoteJSONString, 1, 1)         \
 349   F(BasicJSONStringify, 1, 1)      \
 350   F(ParseJson, 1, 1)
 351
 352
 353 #define FOR_EACH_INTRINSIC_LITERALS(F)   \
 354   F(CreateObjectLiteral, 4, 1)           \
 355   F(CreateArrayLiteral, 4, 1)            \
 356   F(CreateArrayLiteralStubBailout, 3, 1) \
 357   F(StoreArrayLiteralElement, 5, 1)
 358
 359
 360 #define FOR_EACH_INTRINSIC_LIVEEDIT(F)              \
 361   F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
 362   F(LiveEditGatherCompileInfo, 2, 1)                \
 363   F(LiveEditReplaceScript, 3, 1)                    \
 364   F(LiveEditFunctionSourceUpdated, 1, 1)            \
 365   F(LiveEditReplaceFunctionCode, 2, 1)              \
 366   F(LiveEditFunctionSetScript, 2, 1)                \
 367   F(LiveEditReplaceRefToNestedFunction, 3, 1)       \
 368   F(LiveEditPatchFunctionPositions, 2, 1)           \
 369   F(LiveEditCheckAndDropActivations, 2, 1)          \
 370   F(LiveEditCompareStrings, 2, 1)                   \
 371   F(LiveEditRestartFrame, 2, 1)
 372
 373
 374 #define FOR_EACH_INTRINSIC_MATHS(F) \
 375   F(MathAcos, 1, 1)                 \
 376   F(MathAsin, 1, 1)                 \
 377   F(MathAtan, 1, 1)                 \
 378   F(MathLogRT, 1, 1)                \
 379   F(DoubleHi, 1, 1)                 \
 380   F(DoubleLo, 1, 1)                 \
 381   F(ConstructDouble, 2, 1)          \
 382   F(RemPiO2, 2, 1)                  \
 383   F(MathAtan2, 2, 1)                \
 384   F(MathExpRT, 1, 1)                \
 385   F(MathClz32, 1, 1)                \
 386   F(MathFloor, 1, 1)                \
 387   F(MathPowSlow, 2, 1)              \
 388   F(MathPowRT, 2, 1)                \
 389   F(RoundNumber, 1, 1)              \
 390   F(MathSqrt, 1, 1)                 \
 391   F(MathFround, 1, 1)               \
 392   F(MathPow, 2, 1)                  \
 393   F(IsMinusZero, 1, 1)
 394
 395
 396 #define FOR_EACH_INTRINSIC_NUMBERS(F)  \
 397   F(NumberToRadixString, 2, 1)         \
 398   F(NumberToFixed, 2, 1)               \
 399   F(NumberToExponential, 2, 1)         \
 400   F(NumberToPrecision, 2, 1)           \
 401   F(IsValidSmi, 1, 1)                  \
 402   F(StringToNumber, 1, 1)              \
 403   F(StringParseInt, 2, 1)              \
 404   F(StringParseFloat, 1, 1)            \
 405   F(NumberToStringRT, 1, 1)            \
 406   F(NumberToStringSkipCache, 1, 1)     \
 407   F(NumberToInteger, 1, 1)             \
 408   F(NumberToIntegerMapMinusZero, 1, 1) \
 409   F(NumberToJSUint32, 1, 1)            \
 410   F(NumberToJSInt32, 1, 1)             \
 411   F(NumberToSmi, 1, 1)                 \
 412   F(NumberAdd, 2, 1)                   \
 413   F(NumberSub, 2, 1)                   \
 414   F(NumberMul, 2, 1)                   \
 415   F(NumberUnaryMinus, 1, 1)            \
 416   F(NumberDiv, 2, 1)                   \
 417   F(NumberMod, 2, 1)                   \
 418   F(NumberImul, 2, 1)                  \
 419   F(NumberOr, 2, 1)                    \
 420   F(NumberAnd, 2, 1)                   \
 421   F(NumberXor, 2, 1)                   \
 422   F(NumberShl, 2, 1)                   \
 423   F(NumberShr, 2, 1)                   \
 424   F(NumberSar, 2, 1)                   \
 425   F(NumberEquals, 2, 1)                \
 426   F(NumberCompare, 3, 1)               \
 427   F(SmiLexicographicCompare, 2, 1)     \
 428   F(MaxSmi, 0, 1)                      \
 429   F(NumberToString, 1, 1)              \
 430   F(IsSmi, 1, 1)                       \
 431   F(IsNonNegativeSmi, 1, 1)            \
 432   F(GetRootNaN, 0, 1)
 433
 434
 435 #define FOR_EACH_INTRINSIC_OBJECT(F)                 \
 436   F(GetPrototype, 1, 1)                              \
 437   F(InternalSetPrototype, 2, 1)                      \
 438   F(SetPrototype, 2, 1)                              \
 439   F(IsInPrototypeChain, 2, 1)                        \
 440   F(GetOwnProperty, 2, 1)                            \
 441   F(PreventExtensions, 1, 1)                         \
 442   F(IsExtensible, 1, 1)                              \
 443   F(OptimizeObjectForAddingMultipleProperties, 2, 1) \
 444   F(ObjectFreeze, 1, 1)                              \
 445   F(ObjectSeal, 1, 1)                                \
 446   F(GetProperty, 2, 1)                               \
 447   F(GetPropertyStrong, 2, 1)                         \
 448   F(KeyedGetProperty, 2, 1)                          \
 449   F(KeyedGetPropertyStrong, 2, 1)                    \
 450   F(LoadGlobalViaContext, 1, 1)                      \
 451   F(StoreGlobalViaContext_Sloppy, 2, 1)              \
 452   F(StoreGlobalViaContext_Strict, 2, 1)              \
 453   F(AddNamedProperty, 4, 1)                          \
 454   F(SetProperty, 4, 1)                               \
 455   F(AddElement, 3, 1)                                \
 456   F(AppendElement, 2, 1)                             \
 457   F(DeleteProperty, 3, 1)                            \
 458   F(HasOwnProperty, 2, 1)                            \
 459   F(HasProperty, 2, 1)                               \
 460   F(HasElement, 2, 1)                                \
 461   F(IsPropertyEnumerable, 2, 1)                      \
 462   F(GetPropertyNames, 1, 1)                          \
 463   F(GetPropertyNamesFast, 1, 1)                      \
 464   F(GetOwnPropertyNames, 2, 1)                       \
 465   F(GetOwnElementNames, 1, 1)                        \
 466   F(GetInterceptorInfo, 1, 1)                        \
 467   F(GetNamedInterceptorPropertyNames, 1, 1)          \
 468   F(GetIndexedInterceptorElementNames, 1, 1)         \
 469   F(OwnKeys, 1, 1)                                   \
 470   F(ToFastProperties, 1, 1)                          \
 471   F(ToBool, 1, 1)                                    \
 472   F(NewStringWrapper, 1, 1)                          \
 473   F(AllocateHeapNumber, 0, 1)                        \
 474   F(NewObject, 2, 1)                                 \
 475   F(NewObjectWithAllocationSite, 3, 1)               \
 476   F(FinalizeInstanceSize, 1, 1)                      \
 477   F(GlobalProxy, 1, 1)                               \
 478   F(LookupAccessor, 3, 1)                            \
 479   F(LoadMutableDouble, 2, 1)                         \
 480   F(TryMigrateInstance, 1, 1)                        \
 481   F(IsJSGlobalProxy, 1, 1)                           \
 482   F(DefineAccessorPropertyUnchecked, 5, 1)           \
 483   F(DefineDataPropertyUnchecked, 4, 1)               \
 484   F(GetDataProperty, 2, 1)                           \
 485   F(HasFastPackedElements, 1, 1)                     \
 486   F(ValueOf, 1, 1)                                   \
 487   F(SetValueOf, 2, 1)                                \
 488   F(JSValueGetValue, 1, 1)                           \
 489   F(HeapObjectGetMap, 1, 1)                          \
 490   F(MapGetInstanceType, 1, 1)                        \
 491   F(ObjectEquals, 2, 1)                              \
 492   F(IsObject, 1, 1)                                  \
 493   F(IsUndetectableObject, 1, 1)                      \
 494   F(IsSpecObject, 1, 1)                              \
 495   F(IsStrong, 1, 1)                                  \
 496   F(ClassOf, 1, 1)                                   \
 497   F(DefineGetterPropertyUnchecked, 4, 1)             \
 498   F(DefineSetterPropertyUnchecked, 4, 1)
 499
 500
 501 #define FOR_EACH_INTRINSIC_OBSERVE(F)            \
 502   F(IsObserved, 1, 1)                            \
 503   F(SetIsObserved, 1, 1)                         \
 504   F(EnqueueMicrotask, 1, 1)                      \
 505   F(RunMicrotasks, 0, 1)                         \
 506   F(DeliverObservationChangeRecords, 2, 1)       \
 507   F(GetObservationState, 0, 1)                   \
 508   F(ObserverObjectAndRecordHaveSameOrigin, 3, 1) \
 509   F(ObjectWasCreatedInCurrentOrigin, 1, 1)       \
 510   F(GetObjectContextObjectObserve, 1, 1)         \
 511   F(GetObjectContextObjectGetNotifier, 1, 1)     \
 512   F(GetObjectContextNotifierPerformChange, 1, 1)
 513
 514
 515 #define FOR_EACH_INTRINSIC_PROXY(F) \
 516   F(CreateJSProxy, 2, 1)            \
 517   F(CreateJSFunctionProxy, 4, 1)    \
 518   F(IsJSProxy, 1, 1)                \
 519   F(IsJSFunctionProxy, 1, 1)        \
 520   F(GetHandler, 1, 1)               \
 521   F(GetCallTrap, 1, 1)              \
 522   F(GetConstructTrap, 1, 1)         \
 523   F(Fix, 1, 1)
 524
 525
 526 #define FOR_EACH_INTRINSIC_REGEXP(F)           \
 527   F(StringReplaceGlobalRegExpWithString, 4, 1) \
 528   F(StringSplit, 3, 1)                         \
 529   F(RegExpExec, 4, 1)                          \
 530   F(RegExpConstructResultRT, 3, 1)             \
 531   F(RegExpConstructResult, 3, 1)               \
 532   F(RegExpInitializeAndCompile, 3, 1)          \
 533   F(MaterializeRegExpLiteral, 4, 1)            \
 534   F(RegExpExecMultiple, 4, 1)                  \
 535   F(RegExpExecReThrow, 4, 1)                   \
 536   F(IsRegExp, 1, 1)
 537
 538
 539 #define FOR_EACH_INTRINSIC_SCOPES(F)                         \
 540   F(ThrowConstAssignError, 0, 1)                             \
 541   F(DeclareGlobals, 3, 1)                                    \
 542   F(InitializeVarGlobal, 3, 1)                               \
 543   F(InitializeConstGlobal, 2, 1)                             \
 544   F(DeclareLookupSlot, 4, 1)                                 \
 545   F(InitializeLegacyConstLookupSlot, 3, 1)                   \
 546   F(NewArguments, 1, 1) /* TODO(turbofan): Only temporary */ \
 547   F(NewSloppyArguments, 3, 1)                                \
 548   F(NewStrictArguments, 3, 1)                                \
 549   F(NewRestParam, 4, 1)                                      \
 550   F(NewRestParamSlow, 2, 1)                                  \
 551   F(NewClosureFromStubFailure, 1, 1)                         \
 552   F(NewClosure, 3, 1)                                        \
 553   F(NewScriptContext, 2, 1)                                  \
 554   F(NewFunctionContext, 1, 1)                                \
 555   F(PushWithContext, 2, 1)                                   \
 556   F(PushCatchContext, 3, 1)                                  \
 557   F(PushBlockContext, 2, 1)                                  \
 558   F(IsJSModule, 1, 1)                                        \
 559   F(PushModuleContext, 2, 1)                                 \
 560   F(DeclareModules, 1, 1)                                    \
 561   F(DeleteLookupSlot, 2, 1)                                  \
 562   F(StoreLookupSlot, 4, 1)                                   \
 563   F(GetArgumentsProperty, 1, 1)                              \
 564   F(ArgumentsLength, 0, 1)                                   \
 565   F(Arguments, 1, 1)
 566
 567
 568 #define FOR_EACH_INTRINSIC_SIMD(F) \
 569   F(CreateFloat32x4, 4, 1)         \
 570   F(NewFloat32x4Wrapper, 1, 1)     \
 571   F(Float32x4Check, 1, 1)          \
 572   F(Float32x4ExtractLane, 2, 1)    \
 573   F(Float32x4Equals, 2, 1)         \
 574   F(Float32x4SameValue, 2, 1)      \
 575   F(Float32x4SameValueZero, 2, 1)
 576
 577
 578 #define FOR_EACH_INTRINSIC_STRINGS(F)           \
 579   F(StringReplaceOneCharWithString, 3, 1)       \
 580   F(StringIndexOf, 3, 1)                        \
 581   F(StringLastIndexOf, 3, 1)                    \
 582   F(StringLocaleCompare, 2, 1)                  \
 583   F(SubStringRT, 3, 1)                          \
 584   F(SubString, 3, 1)                            \
 585   F(StringAddRT, 2, 1)                          \
 586   F(StringAdd, 2, 1)                            \
 587   F(InternalizeString, 1, 1)                    \
 588   F(StringMatch, 3, 1)                          \
 589   F(StringCharCodeAtRT, 2, 1)                   \
 590   F(CharFromCode, 1, 1)                         \
 591   F(StringCompareRT, 2, 1)                      \
 592   F(StringCompare, 2, 1)                        \
 593   F(StringBuilderConcat, 3, 1)                  \
 594   F(StringBuilderJoin, 3, 1)                    \
 595   F(SparseJoinWithSeparator, 3, 1)              \
 596   F(StringToArray, 2, 1)                        \
 597   F(StringToLowerCase, 1, 1)                    \
 598   F(StringToUpperCase, 1, 1)                    \
 599   F(StringTrim, 3, 1)                           \
 600   F(TruncateString, 2, 1)                       \
 601   F(NewString, 2, 1)                            \
 602   F(NewConsString, 4, 1)                        \
 603   F(StringEquals, 2, 1)                         \
 604   F(FlattenString, 1, 1)                        \
 605   F(StringCharFromCode, 1, 1)                   \
 606   F(StringCharAt, 2, 1)                         \
 607   F(OneByteSeqStringGetChar, 2, 1)              \
 608   F(OneByteSeqStringSetChar, 3, 1)              \
 609   F(TwoByteSeqStringGetChar, 2, 1)              \
 610   F(TwoByteSeqStringSetChar, 3, 1)              \
 611   F(StringCharCodeAt, 2, 1)                     \
 612   F(IsStringWrapperSafeForDefaultValueOf, 1, 1) \
 613   F(StringGetLength, 1, 1)
 614
 615
 616 #define FOR_EACH_INTRINSIC_SYMBOL(F) \
 617   F(CreateSymbol, 1, 1)              \
 618   F(CreatePrivateSymbol, 1, 1)       \
 619   F(CreateGlobalPrivateSymbol, 1, 1) \
 620   F(NewSymbolWrapper, 1, 1)          \
 621   F(SymbolDescription, 1, 1)         \
 622   F(SymbolRegistry, 0, 1)            \
 623   F(SymbolIsPrivate, 1, 1)
 624
 625
 626 #define FOR_EACH_INTRINSIC_TEST(F)            \
 627   F(DeoptimizeFunction, 1, 1)                 \
 628   F(DeoptimizeNow, 0, 1)                      \
 629   F(RunningInSimulator, 0, 1)                 \
 630   F(IsConcurrentRecompilationSupported, 0, 1) \
 631   F(OptimizeFunctionOnNextCall, -1, 1)        \
 632   F(OptimizeOsr, -1, 1)                       \
 633   F(NeverOptimizeFunction, 1, 1)              \
 634   F(GetOptimizationStatus, -1, 1)             \
 635   F(UnblockConcurrentRecompilation, 0, 1)     \
 636   F(GetOptimizationCount, 1, 1)               \
 637   F(GetUndetectable, 0, 1)                    \
 638   F(ClearFunctionTypeFeedback, 1, 1)          \
 639   F(NotifyContextDisposed, 0, 1)              \
 640   F(SetAllocationTimeout, -1 /* 2 || 3 */, 1) \
 641   F(DebugPrint, 1, 1)                         \
 642   F(DebugTrace, 0, 1)                         \
 643   F(GlobalPrint, 1, 1)                        \
 644   F(SystemBreak, 0, 1)                        \
 645   F(SetFlags, 1, 1)                           \
 646   F(Abort, 1, 1)                              \
 647   F(AbortJS, 1, 1)                            \
 648   F(NativeScriptsCount, 0, 1)                 \
 649   F(GetV8Version, 0, 1)                       \
 650   F(DisassembleFunction, 1, 1)                \
 651   F(TraceEnter, 0, 1)                         \
 652   F(TraceExit, 1, 1)                          \
 653   F(HaveSameMap, 2, 1)                        \
 654   F(HasFastSmiElements, 1, 1)                 \
 655   F(HasFastObjectElements, 1, 1)              \
 656   F(HasFastSmiOrObjectElements, 1, 1)         \
 657   F(HasFastDoubleElements, 1, 1)              \
 658   F(HasFastHoleyElements, 1, 1)               \
 659   F(HasDictionaryElements, 1, 1)              \
 660   F(HasSloppyArgumentsElements, 1, 1)         \
 661   F(HasFixedTypedArrayElements, 1, 1)         \
 662   F(HasFastProperties, 1, 1)                  \
 663   F(HasFixedUint8Elements, 1, 1)              \
 664   F(HasFixedInt8Elements, 1, 1)               \
 665   F(HasFixedUint16Elements, 1, 1)             \
 666   F(HasFixedInt16Elements, 1, 1)              \
 667   F(HasFixedUint32Elements, 1, 1)             \
 668   F(HasFixedInt32Elements, 1, 1)              \
 669   F(HasFixedFloat32Elements, 1, 1)            \
 670   F(HasFixedFloat64Elements, 1, 1)            \
 671   F(HasFixedUint8ClampedElements, 1, 1)
 672
 673
 674 #define FOR_EACH_INTRINSIC_TYPEDARRAY(F)     \
 675   F(ArrayBufferInitialize, 3, 1)             \
 676   F(ArrayBufferGetByteLength, 1, 1)          \
 677   F(ArrayBufferSliceImpl, 3, 1)              \
 678   F(ArrayBufferIsView, 1, 1)                 \
 679   F(ArrayBufferNeuter, 1, 1)                 \
 680   F(TypedArrayInitialize, 6, 1)              \
 681   F(TypedArrayInitializeFromArrayLike, 4, 1) \
 682   F(ArrayBufferViewGetByteLength, 1, 1)      \
 683   F(ArrayBufferViewGetByteOffset, 1, 1)      \
 684   F(TypedArrayGetLength, 1, 1)               \
 685   F(DataViewGetBuffer, 1, 1)                 \
 686   F(TypedArrayGetBuffer, 1, 1)               \
 687   F(TypedArraySetFastCases, 3, 1)            \
 688   F(TypedArrayMaxSizeInHeap, 0, 1)           \
 689   F(IsTypedArray, 1, 1)                      \
 690   F(IsSharedTypedArray, 1, 1)                \
 691   F(IsSharedIntegerTypedArray, 1, 1)         \
 692   F(DataViewInitialize, 4, 1)                \
 693   F(DataViewGetUint8, 3, 1)                  \
 694   F(DataViewGetInt8, 3, 1)                   \
 695   F(DataViewGetUint16, 3, 1)                 \
 696   F(DataViewGetInt16, 3, 1)                  \
 697   F(DataViewGetUint32, 3, 1)                 \
 698   F(DataViewGetInt32, 3, 1)                  \
 699   F(DataViewGetFloat32, 3, 1)                \
 700   F(DataViewGetFloat64, 3, 1)                \
 701   F(DataViewSetUint8, 4, 1)                  \
 702   F(DataViewSetInt8, 4, 1)                   \
 703   F(DataViewSetUint16, 4, 1)                 \
 704   F(DataViewSetInt16, 4, 1)                  \
 705   F(DataViewSetUint32, 4, 1)                 \
 706   F(DataViewSetInt32, 4, 1)                  \
 707   F(DataViewSetFloat32, 4, 1)                \
 708   F(DataViewSetFloat64, 4, 1)
 709
 710
 711 #define FOR_EACH_INTRINSIC_URI(F) \
 712   F(URIEscape, 1, 1)              \
 713   F(URIUnescape, 1, 1)
 714
 715
 716 #define FOR_EACH_INTRINSIC_RETURN_PAIR(F) \
 717   F(LoadLookupSlot, 2, 2)                 \
 718   F(LoadLookupSlotNoReferenceError, 2, 2)
 719
 720
 721 // Most intrinsics are implemented in the runtime/ directory, but ICs are
 722 // implemented in ic.cc for now.
 723 #define FOR_EACH_INTRINSIC_IC(F)             \
 724   F(LoadIC_Miss, 3, 1)                       \
 725   F(KeyedLoadIC_Miss, 3, 1)                  \
 726   F(CallIC_Miss, 3, 1)                       \
 727   F(CallIC_Customization_Miss, 3, 1)         \
 728   F(StoreIC_Miss, 3, 1)                      \
 729   F(StoreIC_Slow, 3, 1)                      \
 730   F(KeyedStoreIC_Miss, 3, 1)                 \
 731   F(KeyedStoreIC_Slow, 3, 1)                 \
 732   F(StoreCallbackProperty, 5, 1)             \
 733   F(LoadPropertyWithInterceptorOnly, 3, 1)   \
 734   F(LoadPropertyWithInterceptor, 3, 1)       \
 735   F(LoadElementWithInterceptor, 2, 1)        \
 736   F(StorePropertyWithInterceptor, 3, 1)      \
 737   F(CompareIC_Miss, 3, 1)                    \
 738   F(BinaryOpIC_Miss, 2, 1)                   \
 739   F(CompareNilIC_Miss, 1, 1)                 \
 740   F(Unreachable, 0, 1)                       \
 741   F(ToBooleanIC_Miss, 1, 1)                  \
 742   F(KeyedLoadIC_MissFromStubFailure, 4, 1)   \
 743   F(KeyedStoreIC_MissFromStubFailure, 3, 1)  \
 744   F(StoreIC_MissFromStubFailure, 3, 1)       \
 745   F(ElementsTransitionAndStoreIC_Miss, 4, 1) \
 746   F(BinaryOpIC_MissWithAllocationSite, 3, 1) \
 747   F(LoadIC_MissFromStubFailure, 0, 1)
 748
 749
 750 #define FOR_EACH_INTRINSIC_RETURN_OBJECT(F) \
 751   FOR_EACH_INTRINSIC_IC(F)                  \
 752   FOR_EACH_INTRINSIC_ARRAY(F)               \
 753   FOR_EACH_INTRINSIC_ATOMICS(F)             \
 754   FOR_EACH_INTRINSIC_CLASSES(F)             \
 755   FOR_EACH_INTRINSIC_COLLECTIONS(F)         \
 756   FOR_EACH_INTRINSIC_COMPILER(F)            \
 757   FOR_EACH_INTRINSIC_DATE(F)                \
 758   FOR_EACH_INTRINSIC_DEBUG(F)               \
 759   FOR_EACH_INTRINSIC_FORIN(F)               \
 760   FOR_EACH_INTRINSIC_FUNCTION(F)            \
 761   FOR_EACH_INTRINSIC_FUTEX(F)               \
 762   FOR_EACH_INTRINSIC_GENERATOR(F)           \
 763   FOR_EACH_INTRINSIC_I18N(F)                \
 764   FOR_EACH_INTRINSIC_INTERNAL(F)            \
 765   FOR_EACH_INTRINSIC_JSON(F)                \
 766   FOR_EACH_INTRINSIC_LITERALS(F)            \
 767   FOR_EACH_INTRINSIC_LIVEEDIT(F)            \
 768   FOR_EACH_INTRINSIC_MATHS(F)               \
 769   FOR_EACH_INTRINSIC_NUMBERS(F)             \
 770   FOR_EACH_INTRINSIC_OBJECT(F)              \
 771   FOR_EACH_INTRINSIC_OBSERVE(F)             \
 772   FOR_EACH_INTRINSIC_PROXY(F)               \
 773   FOR_EACH_INTRINSIC_REGEXP(F)              \
 774   FOR_EACH_INTRINSIC_SCOPES(F)              \
 775   FOR_EACH_INTRINSIC_SIMD(F)                \
 776   FOR_EACH_INTRINSIC_STRINGS(F)             \
 777   FOR_EACH_INTRINSIC_SYMBOL(F)              \
 778   FOR_EACH_INTRINSIC_TEST(F)                \
 779   FOR_EACH_INTRINSIC_TYPEDARRAY(F)          \
 780   FOR_EACH_INTRINSIC_URI(F)
 781
 782 // FOR_EACH_INTRINSIC defines the list of all intrinsics, coming in 2 flavors,
 783 // either returning an object or a pair.
 784 #define FOR_EACH_INTRINSIC(F)       \
 785   FOR_EACH_INTRINSIC_RETURN_PAIR(F) \
 786   FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 787
 788
 789 #define F(name, nargs, ressize)                                 \
 790   Object* Runtime_##name(int args_length, Object** args_object, \
 791                          Isolate* isolate);
 792 FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 793 #undef F
 794
 795 //---------------------------------------------------------------------------
 796 // Runtime provides access to all C++ runtime functions.
 797
 798 class RuntimeState {
 799  public:
 800   unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
 801     return &to_upper_mapping_;
 802   }
 803   unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
 804     return &to_lower_mapping_;
 805   }
 806
 807  private:
 808   RuntimeState() {}
 809   unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
 810   unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
 811
 812   friend class Isolate;
 813   friend class Runtime;
 814
 815   DISALLOW_COPY_AND_ASSIGN(RuntimeState);
 816 };
 817
 818
 819 class JavaScriptFrameIterator;  // Forward declaration.
 820
 821
 822 class Runtime : public AllStatic {
 823  public:
 824   enum FunctionId {
 825 #define F(name, nargs, ressize) k##name,
 826 #define I(name, nargs, ressize) kInline##name,
 827     FOR_EACH_INTRINSIC(F) FOR_EACH_INTRINSIC(I)
 828 #undef I
 829 #undef F
 830         kNumFunctions,
 831   };
 832
 833   enum IntrinsicType { RUNTIME, INLINE };
 834
 835   // Intrinsic function descriptor.
 836   struct Function {
 837     FunctionId function_id;
 838     IntrinsicType intrinsic_type;
 839     // The JS name of the function.
 840     const char* name;
 841
 842     // The C++ (native) entry point.  NULL if the function is inlined.
 843     byte* entry;
 844
 845     // The number of arguments expected. nargs is -1 if the function takes
 846     // a variable number of arguments.
 847     int nargs;
 848     // Size of result.  Most functions return a single pointer, size 1.
 849     int result_size;
 850   };
 851
 852   static const int kNotFound = -1;
 853
 854   // Add internalized strings for all the intrinsic function names to a
 855   // StringDictionary.
 856   static void InitializeIntrinsicFunctionNames(Isolate* isolate,
 857                                                Handle<NameDictionary> dict);
 858
 859   // Get the intrinsic function with the given name, which must be internalized.
 860   static const Function* FunctionForName(Handle<String> name);
 861
 862   // Get the intrinsic function with the given FunctionId.
 863   static const Function* FunctionForId(FunctionId id);
 864
 865   // Get the intrinsic function with the given function entry address.
 866   static const Function* FunctionForEntry(Address ref);
 867
 868   MUST_USE_RESULT static MaybeHandle<Object> DeleteObjectProperty(
 869       Isolate* isolate, Handle<JSReceiver> receiver, Handle<Object> key,
 870       LanguageMode language_mode);
 871
 872   MUST_USE_RESULT static MaybeHandle<Object> SetObjectProperty(
 873       Isolate* isolate, Handle<Object> object, Handle<Object> key,
 874       Handle<Object> value, LanguageMode language_mode);
 875
 876   MUST_USE_RESULT static MaybeHandle<Object> GetObjectProperty(
 877       Isolate* isolate, Handle<Object> object, Handle<Object> key,
 878       LanguageMode language_mode = SLOPPY);
 879
 880   MUST_USE_RESULT static MaybeHandle<Object> KeyedGetObjectProperty(
 881       Isolate* isolate, Handle<Object> receiver_obj, Handle<Object> key_obj,
 882       LanguageMode language_mode);
 883
 884   MUST_USE_RESULT static MaybeHandle<Object> GetPrototype(
 885       Isolate* isolate, Handle<Object> object);
 886
 887   MUST_USE_RESULT static MaybeHandle<Name> ToName(Isolate* isolate,
 888                                                   Handle<Object> key);
 889
 890   static void SetupArrayBuffer(Isolate* isolate,
 891                                Handle<JSArrayBuffer> array_buffer,
 892                                bool is_external, void* data,
 893                                size_t allocated_length,
 894                                SharedFlag shared = SharedFlag::kNotShared);
 895
 896   static bool SetupArrayBufferAllocatingData(
 897       Isolate* isolate, Handle<JSArrayBuffer> array_buffer,
 898       size_t allocated_length, bool initialize = true,
 899       SharedFlag shared = SharedFlag::kNotShared);
 900
 901   static void NeuterArrayBuffer(Handle<JSArrayBuffer> array_buffer);
 902
 903   static int FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index);
 904
 905   enum TypedArrayId {
 906     // arrayIds below should be synchromized with typedarray.js natives.
 907     ARRAY_ID_UINT8 = 1,
 908     ARRAY_ID_INT8 = 2,
 909     ARRAY_ID_UINT16 = 3,
 910     ARRAY_ID_INT16 = 4,
 911     ARRAY_ID_UINT32 = 5,
 912     ARRAY_ID_INT32 = 6,
 913     ARRAY_ID_FLOAT32 = 7,
 914     ARRAY_ID_FLOAT64 = 8,
 915     ARRAY_ID_UINT8_CLAMPED = 9,
 916     ARRAY_ID_FIRST = ARRAY_ID_UINT8,
 917     ARRAY_ID_LAST = ARRAY_ID_UINT8_CLAMPED
 918   };
 919
 920   static void ArrayIdToTypeAndSize(int array_id, ExternalArrayType* type,
 921                                    ElementsKind* fixed_elements_kind,
 922                                    size_t* element_size);
 923
 924   // Used in runtime.cc and hydrogen's VisitArrayLiteral.
 925   MUST_USE_RESULT static MaybeHandle<Object> CreateArrayLiteralBoilerplate(
 926       Isolate* isolate, Handle<FixedArray> literals,
 927       Handle<FixedArray> elements, bool is_strong);
 928
 929
 930   static void JSMapInitialize(Isolate* isolate, Handle<JSMap> map);
 931   static void JSMapClear(Isolate* isolate, Handle<JSMap> map);
 932   static void JSSetInitialize(Isolate* isolate, Handle<JSSet> set);
 933   static void JSSetClear(Isolate* isolate, Handle<JSSet> set);
 934
 935   static void WeakCollectionInitialize(
 936       Isolate* isolate, Handle<JSWeakCollection> weak_collection);
 937   static void WeakCollectionSet(Handle<JSWeakCollection> weak_collection,
 938                                 Handle<Object> key, Handle<Object> value,
 939                                 int32_t hash);
 940   static bool WeakCollectionDelete(Handle<JSWeakCollection> weak_collection,
 941                                    Handle<Object> key);
 942   static bool WeakCollectionDelete(Handle<JSWeakCollection> weak_collection,
 943                                    Handle<Object> key, int32_t hash);
 944
 945   static MaybeHandle<JSArray> GetInternalProperties(Isolate* isolate,
 946                                                     Handle<Object>);
 947
 948   static bool AtomicIsLockFree(uint32_t size);
 949 };
 950
 951
 952 std::ostream& operator<<(std::ostream&, Runtime::FunctionId);
 953
 954 //---------------------------------------------------------------------------
 955 // Constants used by interface to runtime functions.
 956
 957 class AllocateDoubleAlignFlag : public BitField<bool, 0, 1> {};
 958 class AllocateTargetSpace : public BitField<AllocationSpace, 1, 3> {};
 959
 960 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 961 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 962 STATIC_ASSERT(LANGUAGE_END == 3);
 963 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 964
 965 //---------------------------------------------------------------------------
 966 // Inline functions
 967
 968 // Assume that 32-bit architectures don't have 64-bit atomic ops.
 969 // TODO(binji): can we do better here?
 970 #if V8_TARGET_ARCH_64_BIT && V8_HOST_ARCH_64_BIT
 971
 972 #define ATOMICS_REQUIRE_LOCK_64_BIT 0
 973
 974 inline bool Runtime::AtomicIsLockFree(uint32_t size) {
 975   return size == 1 || size == 2 || size == 4 || size == 8;
 976 }
 977
 978 #else
 979
 980 #define ATOMICS_REQUIRE_LOCK_64_BIT 1
 981
 982 inline bool Runtime::AtomicIsLockFree(uint32_t size) {
 983   return size == 1 || size == 2 || size == 4;
 984 }
 985
 986 #endif
 987
 988 }  // namespace internal
 989 }  // namespace v8
 990
 991 #endif  // V8_RUNTIME_RUNTIME_H_