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(FinalizeClassDefinition, 2, 1)            \
  88   F(FinalizeClassDefinitionStrong, 2, 1)      \
  89   F(DefineClassMethod, 3, 1)                  \
  90   F(ClassGetSourceCode, 1, 1)                 \
  91   F(LoadFromSuper, 4, 1)                      \
  92   F(LoadKeyedFromSuper, 4, 1)                 \
  93   F(StoreToSuper_Strict, 4, 1)                \
  94   F(StoreToSuper_Sloppy, 4, 1)                \
  95   F(StoreKeyedToSuper_Strict, 4, 1)           \
  96   F(StoreKeyedToSuper_Sloppy, 4, 1)           \
  97   F(HandleStepInForDerivedConstructors, 1, 1) \
  98   F(DefaultConstructorCallSuper, 2, 1)
  99
 100
 101 #define FOR_EACH_INTRINSIC_COLLECTIONS(F) \
 102   F(StringGetRawHashField, 1, 1)          \
 103   F(TheHole, 0, 1)                        \
 104   F(JSCollectionGetTable, 1, 1)           \
 105   F(GenericHash, 1, 1)                    \
 106   F(SetInitialize, 1, 1)                  \
 107   F(SetGrow, 1, 1)                        \
 108   F(SetShrink, 1, 1)                      \
 109   F(SetClear, 1, 1)                       \
 110   F(SetIteratorInitialize, 3, 1)          \
 111   F(SetIteratorClone, 1, 1)               \
 112   F(SetIteratorNext, 2, 1)                \
 113   F(SetIteratorDetails, 1, 1)             \
 114   F(MapInitialize, 1, 1)                  \
 115   F(MapShrink, 1, 1)                      \
 116   F(MapClear, 1, 1)                       \
 117   F(MapGrow, 1, 1)                        \
 118   F(MapIteratorInitialize, 3, 1)          \
 119   F(MapIteratorClone, 1, 1)               \
 120   F(MapIteratorDetails, 1, 1)             \
 121   F(GetWeakMapEntries, 2, 1)              \
 122   F(MapIteratorNext, 2, 1)                \
 123   F(WeakCollectionInitialize, 1, 1)       \
 124   F(WeakCollectionGet, 3, 1)              \
 125   F(WeakCollectionHas, 3, 1)              \
 126   F(WeakCollectionDelete, 3, 1)           \
 127   F(WeakCollectionSet, 4, 1)              \
 128   F(GetWeakSetValues, 2, 1)               \
 129   F(ObservationWeakMapCreate, 0, 1)
 130
 131
 132 #define FOR_EACH_INTRINSIC_COMPILER(F)  \
 133   F(CompileLazy, 1, 1)                  \
 134   F(CompileOptimized, 2, 1)             \
 135   F(NotifyStubFailure, 0, 1)            \
 136   F(NotifyDeoptimized, 1, 1)            \
 137   F(CompileForOnStackReplacement, 1, 1) \
 138   F(TryInstallOptimizedCode, 1, 1)      \
 139   F(CompileString, 2, 1)                \
 140   F(ResolvePossiblyDirectEval, 5, 1)
 141
 142
 143 #define FOR_EACH_INTRINSIC_DATE(F) \
 144   F(DateMakeDay, 2, 1)             \
 145   F(DateSetValue, 3, 1)            \
 146   F(IsDate, 1, 1)                  \
 147   F(ThrowNotDateError, 0, 1)       \
 148   F(DateCurrentTime, 0, 1)         \
 149   F(DateParseString, 2, 1)         \
 150   F(DateLocalTimezone, 1, 1)       \
 151   F(DateToUTC, 1, 1)               \
 152   F(DateCacheVersion, 0, 1)        \
 153   F(DateField, 2 /* date object, field index */, 1)
 154
 155
 156 #define FOR_EACH_INTRINSIC_DEBUG(F)            \
 157   F(HandleDebuggerStatement, 0, 1)             \
 158   F(DebugBreak, 0, 1)                          \
 159   F(SetDebugEventListener, 2, 1)               \
 160   F(ScheduleBreak, 0, 1)                       \
 161   F(DebugGetInternalProperties, 1, 1)          \
 162   F(DebugGetPropertyDetails, 2, 1)             \
 163   F(DebugGetProperty, 2, 1)                    \
 164   F(DebugPropertyTypeFromDetails, 1, 1)        \
 165   F(DebugPropertyAttributesFromDetails, 1, 1)  \
 166   F(DebugPropertyIndexFromDetails, 1, 1)       \
 167   F(DebugNamedInterceptorPropertyValue, 2, 1)  \
 168   F(DebugIndexedInterceptorElementValue, 2, 1) \
 169   F(CheckExecutionState, 1, 1)                 \
 170   F(GetFrameCount, 1, 1)                       \
 171   F(GetFrameDetails, 2, 1)                     \
 172   F(GetScopeCount, 2, 1)                       \
 173   F(GetStepInPositions, 2, 1)                  \
 174   F(GetScopeDetails, 4, 1)                     \
 175   F(GetAllScopesDetails, 4, 1)                 \
 176   F(GetFunctionScopeCount, 1, 1)               \
 177   F(GetFunctionScopeDetails, 2, 1)             \
 178   F(SetScopeVariableValue, 6, 1)               \
 179   F(DebugPrintScopes, 0, 1)                    \
 180   F(GetThreadCount, 1, 1)                      \
 181   F(GetThreadDetails, 2, 1)                    \
 182   F(SetDisableBreak, 1, 1)                     \
 183   F(GetBreakLocations, 2, 1)                   \
 184   F(SetFunctionBreakPoint, 3, 1)               \
 185   F(SetScriptBreakPoint, 4, 1)                 \
 186   F(ClearBreakPoint, 1, 1)                     \
 187   F(ChangeBreakOnException, 2, 1)              \
 188   F(IsBreakOnException, 1, 1)                  \
 189   F(PrepareStep, 4, 1)                         \
 190   F(ClearStepping, 0, 1)                       \
 191   F(DebugEvaluate, 6, 1)                       \
 192   F(DebugEvaluateGlobal, 4, 1)                 \
 193   F(DebugGetLoadedScripts, 0, 1)               \
 194   F(DebugReferencedBy, 3, 1)                   \
 195   F(DebugConstructedBy, 2, 1)                  \
 196   F(DebugGetPrototype, 1, 1)                   \
 197   F(DebugSetScriptSource, 2, 1)                \
 198   F(FunctionGetInferredName, 1, 1)             \
 199   F(GetFunctionCodePositionFromSource, 2, 1)   \
 200   F(ExecuteInDebugContext, 1, 1)               \
 201   F(GetDebugContext, 0, 1)                     \
 202   F(CollectGarbage, 1, 1)                      \
 203   F(GetHeapUsage, 0, 1)                        \
 204   F(GetScript, 1, 1)                           \
 205   F(DebugCallbackSupportsStepping, 1, 1)       \
 206   F(DebugPrepareStepInIfStepping, 1, 1)        \
 207   F(DebugPushPromise, 2, 1)                    \
 208   F(DebugPopPromise, 0, 1)                     \
 209   F(DebugPromiseEvent, 1, 1)                   \
 210   F(DebugAsyncTaskEvent, 1, 1)                 \
 211   F(DebugIsActive, 0, 1)                       \
 212   F(DebugBreakInOptimizedCode, 0, 1)
 213
 214
 215 #define FOR_EACH_INTRINSIC_FORIN(F) \
 216   F(ForInDone, 2, 1)                \
 217   F(ForInFilter, 2, 1)              \
 218   F(ForInNext, 4, 1)                \
 219   F(ForInStep, 1, 1)
 220
 221
 222 #define FOR_EACH_INTRINSIC_FUNCTION(F)                      \
 223   F(IsSloppyModeFunction, 1, 1)                             \
 224   F(FunctionGetName, 1, 1)                                  \
 225   F(FunctionSetName, 2, 1)                                  \
 226   F(FunctionNameShouldPrintAsAnonymous, 1, 1)               \
 227   F(FunctionMarkNameShouldPrintAsAnonymous, 1, 1)           \
 228   F(FunctionIsArrow, 1, 1)                                  \
 229   F(FunctionIsConciseMethod, 1, 1)                          \
 230   F(FunctionRemovePrototype, 1, 1)                          \
 231   F(FunctionGetScript, 1, 1)                                \
 232   F(FunctionGetSourceCode, 1, 1)                            \
 233   F(FunctionGetScriptSourcePosition, 1, 1)                  \
 234   F(FunctionGetPositionForOffset, 2, 1)                     \
 235   F(FunctionSetInstanceClassName, 2, 1)                     \
 236   F(FunctionSetLength, 2, 1)                                \
 237   F(FunctionSetPrototype, 2, 1)                             \
 238   F(FunctionIsAPIFunction, 1, 1)                            \
 239   F(FunctionIsBuiltin, 1, 1)                                \
 240   F(SetCode, 2, 1)                                          \
 241   F(SetNativeFlag, 1, 1)                                    \
 242   F(ThrowStrongModeTooFewArguments, 0, 1)                   \
 243   F(IsConstructor, 1, 1)                                    \
 244   F(SetForceInlineFlag, 1, 1)                               \
 245   F(FunctionBindArguments, 4, 1)                            \
 246   F(BoundFunctionGetBindings, 1, 1)                         \
 247   F(NewObjectFromBound, 1, 1)                               \
 248   F(Call, -1 /* >= 2 */, 1)                                 \
 249   F(Apply, 5, 1)                                            \
 250   F(GetFunctionDelegate, 1, 1)                              \
 251   F(GetConstructorDelegate, 1, 1)                           \
 252   F(GetOriginalConstructor, 0, 1)                           \
 253   F(CallFunction, -1 /* receiver + n args + function */, 1) \
 254   F(IsConstructCall, 0, 1)                                  \
 255   F(IsFunction, 1, 1)
 256
 257
 258 #define FOR_EACH_INTRINSIC_GENERATOR(F) \
 259   F(CreateJSGeneratorObject, 0, 1)      \
 260   F(SuspendJSGeneratorObject, -1, 1)    \
 261   F(ResumeJSGeneratorObject, 3, 1)      \
 262   F(GeneratorClose, 1, 1)               \
 263   F(GeneratorGetFunction, 1, 1)         \
 264   F(GeneratorGetContext, 1, 1)          \
 265   F(GeneratorGetReceiver, 1, 1)         \
 266   F(GeneratorGetContinuation, 1, 1)     \
 267   F(GeneratorGetSourcePosition, 1, 1)   \
 268   F(FunctionIsGenerator, 1, 1)          \
 269   F(GeneratorNext, 2, 1)                \
 270   F(GeneratorThrow, 2, 1)
 271
 272
 273 #ifdef V8_I18N_SUPPORT
 274 #define FOR_EACH_INTRINSIC_I18N(F)           \
 275   F(CanonicalizeLanguageTag, 1, 1)           \
 276   F(AvailableLocalesOf, 1, 1)                \
 277   F(GetDefaultICULocale, 0, 1)               \
 278   F(GetLanguageTagVariants, 1, 1)            \
 279   F(IsInitializedIntlObject, 1, 1)           \
 280   F(IsInitializedIntlObjectOfType, 2, 1)     \
 281   F(MarkAsInitializedIntlObjectOfType, 3, 1) \
 282   F(GetImplFromInitializedIntlObject, 1, 1)  \
 283   F(CreateDateTimeFormat, 3, 1)              \
 284   F(InternalDateFormat, 2, 1)                \
 285   F(InternalDateParse, 2, 1)                 \
 286   F(CreateNumberFormat, 3, 1)                \
 287   F(InternalNumberFormat, 2, 1)              \
 288   F(InternalNumberParse, 2, 1)               \
 289   F(CreateCollator, 3, 1)                    \
 290   F(InternalCompare, 3, 1)                   \
 291   F(StringNormalize, 2, 1)                   \
 292   F(CreateBreakIterator, 3, 1)               \
 293   F(BreakIteratorAdoptText, 2, 1)            \
 294   F(BreakIteratorFirst, 1, 1)                \
 295   F(BreakIteratorNext, 1, 1)                 \
 296   F(BreakIteratorCurrent, 1, 1)              \
 297   F(BreakIteratorBreakType, 1, 1)
 298 #else
 299 #define FOR_EACH_INTRINSIC_I18N(F)
 300 #endif
 301
 302
 303 #define FOR_EACH_INTRINSIC_INTERNAL(F)        \
 304   F(CheckIsBootstrapping, 0, 1)               \
 305   F(Throw, 1, 1)                              \
 306   F(ReThrow, 1, 1)                            \
 307   F(UnwindAndFindExceptionHandler, 0, 1)      \
 308   F(PromoteScheduledException, 0, 1)          \
 309   F(ThrowReferenceError, 1, 1)                \
 310   F(NewTypeError, 2, 1)                       \
 311   F(NewSyntaxError, 2, 1)                     \
 312   F(NewReferenceError, 2, 1)                  \
 313   F(ThrowIteratorResultNotAnObject, 1, 1)     \
 314   F(ThrowStrongModeImplicitConversion, 0, 1)  \
 315   F(PromiseRejectEvent, 3, 1)                 \
 316   F(PromiseRevokeReject, 1, 1)                \
 317   F(PromiseHasHandlerSymbol, 0, 1)            \
 318   F(StackGuard, 0, 1)                         \
 319   F(Interrupt, 0, 1)                          \
 320   F(AllocateInNewSpace, 1, 1)                 \
 321   F(AllocateInTargetSpace, 2, 1)              \
 322   F(CollectStackTrace, 2, 1)                  \
 323   F(RenderCallSite, 0, 1)                     \
 324   F(GetFromCacheRT, 2, 1)                     \
 325   F(MessageGetStartPosition, 1, 1)            \
 326   F(MessageGetScript, 1, 1)                   \
 327   F(FormatMessageString, 4, 1)                \
 328   F(CallSiteGetFileNameRT, 3, 1)              \
 329   F(CallSiteGetFunctionNameRT, 3, 1)          \
 330   F(CallSiteGetScriptNameOrSourceUrlRT, 3, 1) \
 331   F(CallSiteGetMethodNameRT, 3, 1)            \
 332   F(CallSiteGetLineNumberRT, 3, 1)            \
 333   F(CallSiteGetColumnNumberRT, 3, 1)          \
 334   F(CallSiteIsNativeRT, 3, 1)                 \
 335   F(CallSiteIsToplevelRT, 3, 1)               \
 336   F(CallSiteIsEvalRT, 3, 1)                   \
 337   F(CallSiteIsConstructorRT, 3, 1)            \
 338   F(IS_VAR, 1, 1)                             \
 339   F(GetFromCache, 2, 1)                       \
 340   F(IncrementStatsCounter, 1, 1)              \
 341   F(Likely, 1, 1)                             \
 342   F(Unlikely, 1, 1)                           \
 343   F(HarmonyToString, 0, 1)                    \
 344   F(GetTypeFeedbackVector, 1, 1)              \
 345   F(GetCallerJSFunction, 0, 1)                \
 346   F(GetCodeStubExportsObject, 0, 1)
 347
 348
 349 #define FOR_EACH_INTRINSIC_JSON(F) \
 350   F(QuoteJSONString, 1, 1)         \
 351   F(BasicJSONStringify, 1, 1)      \
 352   F(ParseJson, 1, 1)
 353
 354
 355 #define FOR_EACH_INTRINSIC_LITERALS(F)   \
 356   F(CreateObjectLiteral, 4, 1)           \
 357   F(CreateArrayLiteral, 4, 1)            \
 358   F(CreateArrayLiteralStubBailout, 3, 1) \
 359   F(StoreArrayLiteralElement, 5, 1)
 360
 361
 362 #define FOR_EACH_INTRINSIC_LIVEEDIT(F)              \
 363   F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
 364   F(LiveEditGatherCompileInfo, 2, 1)                \
 365   F(LiveEditReplaceScript, 3, 1)                    \
 366   F(LiveEditFunctionSourceUpdated, 1, 1)            \
 367   F(LiveEditReplaceFunctionCode, 2, 1)              \
 368   F(LiveEditFunctionSetScript, 2, 1)                \
 369   F(LiveEditReplaceRefToNestedFunction, 3, 1)       \
 370   F(LiveEditPatchFunctionPositions, 2, 1)           \
 371   F(LiveEditCheckAndDropActivations, 2, 1)          \
 372   F(LiveEditCompareStrings, 2, 1)                   \
 373   F(LiveEditRestartFrame, 2, 1)
 374
 375
 376 #define FOR_EACH_INTRINSIC_MATHS(F) \
 377   F(MathAcos, 1, 1)                 \
 378   F(MathAsin, 1, 1)                 \
 379   F(MathAtan, 1, 1)                 \
 380   F(MathLogRT, 1, 1)                \
 381   F(DoubleHi, 1, 1)                 \
 382   F(DoubleLo, 1, 1)                 \
 383   F(ConstructDouble, 2, 1)          \
 384   F(RemPiO2, 2, 1)                  \
 385   F(MathAtan2, 2, 1)                \
 386   F(MathExpRT, 1, 1)                \
 387   F(MathClz32, 1, 1)                \
 388   F(MathFloor, 1, 1)                \
 389   F(MathPowSlow, 2, 1)              \
 390   F(MathPowRT, 2, 1)                \
 391   F(RoundNumber, 1, 1)              \
 392   F(MathSqrt, 1, 1)                 \
 393   F(MathFround, 1, 1)               \
 394   F(MathPow, 2, 1)                  \
 395   F(IsMinusZero, 1, 1)
 396
 397
 398 #define FOR_EACH_INTRINSIC_NUMBERS(F)  \
 399   F(NumberToRadixString, 2, 1)         \
 400   F(NumberToFixed, 2, 1)               \
 401   F(NumberToExponential, 2, 1)         \
 402   F(NumberToPrecision, 2, 1)           \
 403   F(IsValidSmi, 1, 1)                  \
 404   F(StringToNumber, 1, 1)              \
 405   F(StringParseInt, 2, 1)              \
 406   F(StringParseFloat, 1, 1)            \
 407   F(NumberToStringRT, 1, 1)            \
 408   F(NumberToStringSkipCache, 1, 1)     \
 409   F(NumberToInteger, 1, 1)             \
 410   F(NumberToIntegerMapMinusZero, 1, 1) \
 411   F(NumberToJSUint32, 1, 1)            \
 412   F(NumberToJSInt32, 1, 1)             \
 413   F(NumberToSmi, 1, 1)                 \
 414   F(NumberAdd, 2, 1)                   \
 415   F(NumberSub, 2, 1)                   \
 416   F(NumberMul, 2, 1)                   \
 417   F(NumberUnaryMinus, 1, 1)            \
 418   F(NumberDiv, 2, 1)                   \
 419   F(NumberMod, 2, 1)                   \
 420   F(NumberImul, 2, 1)                  \
 421   F(NumberOr, 2, 1)                    \
 422   F(NumberAnd, 2, 1)                   \
 423   F(NumberXor, 2, 1)                   \
 424   F(NumberShl, 2, 1)                   \
 425   F(NumberShr, 2, 1)                   \
 426   F(NumberSar, 2, 1)                   \
 427   F(NumberEquals, 2, 1)                \
 428   F(NumberCompare, 3, 1)               \
 429   F(SmiLexicographicCompare, 2, 1)     \
 430   F(MaxSmi, 0, 1)                      \
 431   F(NumberToString, 1, 1)              \
 432   F(IsSmi, 1, 1)                       \
 433   F(IsNonNegativeSmi, 1, 1)            \
 434   F(GetRootNaN, 0, 1)
 435
 436
 437 #define FOR_EACH_INTRINSIC_OBJECT(F)                 \
 438   F(GetPrototype, 1, 1)                              \
 439   F(InternalSetPrototype, 2, 1)                      \
 440   F(SetPrototype, 2, 1)                              \
 441   F(IsInPrototypeChain, 2, 1)                        \
 442   F(GetOwnProperty, 2, 1)                            \
 443   F(PreventExtensions, 1, 1)                         \
 444   F(IsExtensible, 1, 1)                              \
 445   F(OptimizeObjectForAddingMultipleProperties, 2, 1) \
 446   F(ObjectFreeze, 1, 1)                              \
 447   F(ObjectSeal, 1, 1)                                \
 448   F(GetProperty, 2, 1)                               \
 449   F(GetPropertyStrong, 2, 1)                         \
 450   F(KeyedGetProperty, 2, 1)                          \
 451   F(KeyedGetPropertyStrong, 2, 1)                    \
 452   F(LoadGlobalViaContext, 1, 1)                      \
 453   F(StoreGlobalViaContext_Sloppy, 2, 1)              \
 454   F(StoreGlobalViaContext_Strict, 2, 1)              \
 455   F(AddNamedProperty, 4, 1)                          \
 456   F(SetProperty, 4, 1)                               \
 457   F(AddElement, 3, 1)                                \
 458   F(AppendElement, 2, 1)                             \
 459   F(DeleteProperty, 3, 1)                            \
 460   F(HasOwnProperty, 2, 1)                            \
 461   F(HasProperty, 2, 1)                               \
 462   F(HasElement, 2, 1)                                \
 463   F(IsPropertyEnumerable, 2, 1)                      \
 464   F(GetPropertyNames, 1, 1)                          \
 465   F(GetPropertyNamesFast, 1, 1)                      \
 466   F(GetOwnPropertyNames, 2, 1)                       \
 467   F(GetOwnElementNames, 1, 1)                        \
 468   F(GetInterceptorInfo, 1, 1)                        \
 469   F(GetNamedInterceptorPropertyNames, 1, 1)          \
 470   F(GetIndexedInterceptorElementNames, 1, 1)         \
 471   F(OwnKeys, 1, 1)                                   \
 472   F(ToFastProperties, 1, 1)                          \
 473   F(ToBool, 1, 1)                                    \
 474   F(NewStringWrapper, 1, 1)                          \
 475   F(AllocateHeapNumber, 0, 1)                        \
 476   F(NewObject, 2, 1)                                 \
 477   F(NewObjectWithAllocationSite, 3, 1)               \
 478   F(FinalizeInstanceSize, 1, 1)                      \
 479   F(GlobalProxy, 1, 1)                               \
 480   F(LookupAccessor, 3, 1)                            \
 481   F(LoadMutableDouble, 2, 1)                         \
 482   F(TryMigrateInstance, 1, 1)                        \
 483   F(IsJSGlobalProxy, 1, 1)                           \
 484   F(DefineAccessorPropertyUnchecked, 5, 1)           \
 485   F(DefineDataPropertyUnchecked, 4, 1)               \
 486   F(GetDataProperty, 2, 1)                           \
 487   F(HasFastPackedElements, 1, 1)                     \
 488   F(ValueOf, 1, 1)                                   \
 489   F(SetValueOf, 2, 1)                                \
 490   F(JSValueGetValue, 1, 1)                           \
 491   F(HeapObjectGetMap, 1, 1)                          \
 492   F(MapGetInstanceType, 1, 1)                        \
 493   F(ObjectEquals, 2, 1)                              \
 494   F(IsObject, 1, 1)                                  \
 495   F(IsUndetectableObject, 1, 1)                      \
 496   F(IsSpecObject, 1, 1)                              \
 497   F(IsStrong, 1, 1)                                  \
 498   F(ClassOf, 1, 1)                                   \
 499   F(DefineGetterPropertyUnchecked, 4, 1)             \
 500   F(DefineSetterPropertyUnchecked, 4, 1)
 501
 502
 503 #define FOR_EACH_INTRINSIC_OBSERVE(F)            \
 504   F(IsObserved, 1, 1)                            \
 505   F(SetIsObserved, 1, 1)                         \
 506   F(EnqueueMicrotask, 1, 1)                      \
 507   F(RunMicrotasks, 0, 1)                         \
 508   F(DeliverObservationChangeRecords, 2, 1)       \
 509   F(GetObservationState, 0, 1)                   \
 510   F(ObserverObjectAndRecordHaveSameOrigin, 3, 1) \
 511   F(ObjectWasCreatedInCurrentOrigin, 1, 1)       \
 512   F(GetObjectContextObjectObserve, 1, 1)         \
 513   F(GetObjectContextObjectGetNotifier, 1, 1)     \
 514   F(GetObjectContextNotifierPerformChange, 1, 1)
 515
 516
 517 #define FOR_EACH_INTRINSIC_PROXY(F) \
 518   F(CreateJSProxy, 2, 1)            \
 519   F(CreateJSFunctionProxy, 4, 1)    \
 520   F(IsJSProxy, 1, 1)                \
 521   F(IsJSFunctionProxy, 1, 1)        \
 522   F(GetHandler, 1, 1)               \
 523   F(GetCallTrap, 1, 1)              \
 524   F(GetConstructTrap, 1, 1)         \
 525   F(Fix, 1, 1)
 526
 527
 528 #define FOR_EACH_INTRINSIC_REGEXP(F)           \
 529   F(StringReplaceGlobalRegExpWithString, 4, 1) \
 530   F(StringSplit, 3, 1)                         \
 531   F(RegExpExec, 4, 1)                          \
 532   F(RegExpConstructResultRT, 3, 1)             \
 533   F(RegExpConstructResult, 3, 1)               \
 534   F(RegExpInitializeAndCompile, 3, 1)          \
 535   F(MaterializeRegExpLiteral, 4, 1)            \
 536   F(RegExpExecMultiple, 4, 1)                  \
 537   F(RegExpExecReThrow, 4, 1)                   \
 538   F(IsRegExp, 1, 1)
 539
 540
 541 #define FOR_EACH_INTRINSIC_SCOPES(F)                         \
 542   F(ThrowConstAssignError, 0, 1)                             \
 543   F(DeclareGlobals, 2, 1)                                    \
 544   F(InitializeVarGlobal, 3, 1)                               \
 545   F(InitializeConstGlobal, 2, 1)                             \
 546   F(DeclareLookupSlot, 2, 1)                                 \
 547   F(DeclareReadOnlyLookupSlot, 2, 1)                         \
 548   F(InitializeLegacyConstLookupSlot, 3, 1)                   \
 549   F(NewArguments, 1, 1) /* TODO(turbofan): Only temporary */ \
 550   F(NewSloppyArguments, 3, 1)                                \
 551   F(NewStrictArguments, 3, 1)                                \
 552   F(NewRestParam, 4, 1)                                      \
 553   F(NewRestParamSlow, 2, 1)                                  \
 554   F(NewClosureFromStubFailure, 1, 1)                         \
 555   F(NewClosure, 3, 1)                                        \
 556   F(NewScriptContext, 2, 1)                                  \
 557   F(NewFunctionContext, 1, 1)                                \
 558   F(PushWithContext, 2, 1)                                   \
 559   F(PushCatchContext, 3, 1)                                  \
 560   F(PushBlockContext, 2, 1)                                  \
 561   F(IsJSModule, 1, 1)                                        \
 562   F(PushModuleContext, 2, 1)                                 \
 563   F(DeclareModules, 1, 1)                                    \
 564   F(DeleteLookupSlot, 2, 1)                                  \
 565   F(StoreLookupSlot, 4, 1)                                   \
 566   F(GetArgumentsProperty, 1, 1)                              \
 567   F(ArgumentsLength, 0, 1)                                   \
 568   F(Arguments, 1, 1)
 569
 570
 571 #define FOR_EACH_INTRINSIC_SIMD(F) \
 572   F(CreateFloat32x4, 4, 1)         \
 573   F(NewFloat32x4Wrapper, 1, 1)     \
 574   F(Float32x4Check, 1, 1)          \
 575   F(Float32x4ExtractLane, 2, 1)    \
 576   F(Float32x4Equals, 2, 1)         \
 577   F(Float32x4SameValue, 2, 1)      \
 578   F(Float32x4SameValueZero, 2, 1)
 579
 580
 581 #define FOR_EACH_INTRINSIC_STRINGS(F)           \
 582   F(StringReplaceOneCharWithString, 3, 1)       \
 583   F(StringIndexOf, 3, 1)                        \
 584   F(StringLastIndexOf, 3, 1)                    \
 585   F(StringLocaleCompare, 2, 1)                  \
 586   F(SubStringRT, 3, 1)                          \
 587   F(SubString, 3, 1)                            \
 588   F(StringAddRT, 2, 1)                          \
 589   F(StringAdd, 2, 1)                            \
 590   F(InternalizeString, 1, 1)                    \
 591   F(StringMatch, 3, 1)                          \
 592   F(StringCharCodeAtRT, 2, 1)                   \
 593   F(CharFromCode, 1, 1)                         \
 594   F(StringCompareRT, 2, 1)                      \
 595   F(StringCompare, 2, 1)                        \
 596   F(StringBuilderConcat, 3, 1)                  \
 597   F(StringBuilderJoin, 3, 1)                    \
 598   F(SparseJoinWithSeparator, 3, 1)              \
 599   F(StringToArray, 2, 1)                        \
 600   F(StringToLowerCase, 1, 1)                    \
 601   F(StringToUpperCase, 1, 1)                    \
 602   F(StringTrim, 3, 1)                           \
 603   F(TruncateString, 2, 1)                       \
 604   F(NewString, 2, 1)                            \
 605   F(NewConsString, 4, 1)                        \
 606   F(StringEquals, 2, 1)                         \
 607   F(FlattenString, 1, 1)                        \
 608   F(StringCharFromCode, 1, 1)                   \
 609   F(StringCharAt, 2, 1)                         \
 610   F(OneByteSeqStringGetChar, 2, 1)              \
 611   F(OneByteSeqStringSetChar, 3, 1)              \
 612   F(TwoByteSeqStringGetChar, 2, 1)              \
 613   F(TwoByteSeqStringSetChar, 3, 1)              \
 614   F(StringCharCodeAt, 2, 1)                     \
 615   F(IsStringWrapperSafeForDefaultValueOf, 1, 1) \
 616   F(StringGetLength, 1, 1)
 617
 618
 619 #define FOR_EACH_INTRINSIC_SYMBOL(F) \
 620   F(CreateSymbol, 1, 1)              \
 621   F(CreatePrivateSymbol, 1, 1)       \
 622   F(CreateGlobalPrivateSymbol, 1, 1) \
 623   F(NewSymbolWrapper, 1, 1)          \
 624   F(SymbolDescription, 1, 1)         \
 625   F(SymbolRegistry, 0, 1)            \
 626   F(SymbolIsPrivate, 1, 1)
 627
 628
 629 #define FOR_EACH_INTRINSIC_TEST(F)            \
 630   F(DeoptimizeFunction, 1, 1)                 \
 631   F(DeoptimizeNow, 0, 1)                      \
 632   F(RunningInSimulator, 0, 1)                 \
 633   F(IsConcurrentRecompilationSupported, 0, 1) \
 634   F(OptimizeFunctionOnNextCall, -1, 1)        \
 635   F(OptimizeOsr, -1, 1)                       \
 636   F(NeverOptimizeFunction, 1, 1)              \
 637   F(GetOptimizationStatus, -1, 1)             \
 638   F(UnblockConcurrentRecompilation, 0, 1)     \
 639   F(GetOptimizationCount, 1, 1)               \
 640   F(GetUndetectable, 0, 1)                    \
 641   F(ClearFunctionTypeFeedback, 1, 1)          \
 642   F(NotifyContextDisposed, 0, 1)              \
 643   F(SetAllocationTimeout, -1 /* 2 || 3 */, 1) \
 644   F(DebugPrint, 1, 1)                         \
 645   F(DebugTrace, 0, 1)                         \
 646   F(GlobalPrint, 1, 1)                        \
 647   F(SystemBreak, 0, 1)                        \
 648   F(SetFlags, 1, 1)                           \
 649   F(Abort, 1, 1)                              \
 650   F(AbortJS, 1, 1)                            \
 651   F(NativeScriptsCount, 0, 1)                 \
 652   F(GetV8Version, 0, 1)                       \
 653   F(DisassembleFunction, 1, 1)                \
 654   F(TraceEnter, 0, 1)                         \
 655   F(TraceExit, 1, 1)                          \
 656   F(HaveSameMap, 2, 1)                        \
 657   F(HasFastSmiElements, 1, 1)                 \
 658   F(HasFastObjectElements, 1, 1)              \
 659   F(HasFastSmiOrObjectElements, 1, 1)         \
 660   F(HasFastDoubleElements, 1, 1)              \
 661   F(HasFastHoleyElements, 1, 1)               \
 662   F(HasDictionaryElements, 1, 1)              \
 663   F(HasSloppyArgumentsElements, 1, 1)         \
 664   F(HasFixedTypedArrayElements, 1, 1)         \
 665   F(HasFastProperties, 1, 1)                  \
 666   F(HasFixedUint8Elements, 1, 1)              \
 667   F(HasFixedInt8Elements, 1, 1)               \
 668   F(HasFixedUint16Elements, 1, 1)             \
 669   F(HasFixedInt16Elements, 1, 1)              \
 670   F(HasFixedUint32Elements, 1, 1)             \
 671   F(HasFixedInt32Elements, 1, 1)              \
 672   F(HasFixedFloat32Elements, 1, 1)            \
 673   F(HasFixedFloat64Elements, 1, 1)            \
 674   F(HasFixedUint8ClampedElements, 1, 1)
 675
 676
 677 #define FOR_EACH_INTRINSIC_TYPEDARRAY(F)     \
 678   F(ArrayBufferInitialize, 3, 1)             \
 679   F(ArrayBufferGetByteLength, 1, 1)          \
 680   F(ArrayBufferSliceImpl, 3, 1)              \
 681   F(ArrayBufferIsView, 1, 1)                 \
 682   F(ArrayBufferNeuter, 1, 1)                 \
 683   F(TypedArrayInitialize, 6, 1)              \
 684   F(TypedArrayInitializeFromArrayLike, 4, 1) \
 685   F(ArrayBufferViewGetByteLength, 1, 1)      \
 686   F(ArrayBufferViewGetByteOffset, 1, 1)      \
 687   F(TypedArrayGetLength, 1, 1)               \
 688   F(DataViewGetBuffer, 1, 1)                 \
 689   F(TypedArrayGetBuffer, 1, 1)               \
 690   F(TypedArraySetFastCases, 3, 1)            \
 691   F(TypedArrayMaxSizeInHeap, 0, 1)           \
 692   F(IsTypedArray, 1, 1)                      \
 693   F(IsSharedTypedArray, 1, 1)                \
 694   F(IsSharedIntegerTypedArray, 1, 1)         \
 695   F(DataViewInitialize, 4, 1)                \
 696   F(DataViewGetUint8, 3, 1)                  \
 697   F(DataViewGetInt8, 3, 1)                   \
 698   F(DataViewGetUint16, 3, 1)                 \
 699   F(DataViewGetInt16, 3, 1)                  \
 700   F(DataViewGetUint32, 3, 1)                 \
 701   F(DataViewGetInt32, 3, 1)                  \
 702   F(DataViewGetFloat32, 3, 1)                \
 703   F(DataViewGetFloat64, 3, 1)                \
 704   F(DataViewSetUint8, 4, 1)                  \
 705   F(DataViewSetInt8, 4, 1)                   \
 706   F(DataViewSetUint16, 4, 1)                 \
 707   F(DataViewSetInt16, 4, 1)                  \
 708   F(DataViewSetUint32, 4, 1)                 \
 709   F(DataViewSetInt32, 4, 1)                  \
 710   F(DataViewSetFloat32, 4, 1)                \
 711   F(DataViewSetFloat64, 4, 1)
 712
 713
 714 #define FOR_EACH_INTRINSIC_URI(F) \
 715   F(URIEscape, 1, 1)              \
 716   F(URIUnescape, 1, 1)
 717
 718
 719 #define FOR_EACH_INTRINSIC_RETURN_PAIR(F) \
 720   F(LoadLookupSlot, 2, 2)                 \
 721   F(LoadLookupSlotNoReferenceError, 2, 2)
 722
 723
 724 // Most intrinsics are implemented in the runtime/ directory, but ICs are
 725 // implemented in ic.cc for now.
 726 #define FOR_EACH_INTRINSIC_IC(F)             \
 727   F(LoadIC_Miss, 3, 1)                       \
 728   F(KeyedLoadIC_Miss, 3, 1)                  \
 729   F(CallIC_Miss, 3, 1)                       \
 730   F(CallIC_Customization_Miss, 3, 1)         \
 731   F(StoreIC_Miss, 3, 1)                      \
 732   F(StoreIC_Slow, 3, 1)                      \
 733   F(KeyedStoreIC_Miss, 3, 1)                 \
 734   F(KeyedStoreIC_Slow, 3, 1)                 \
 735   F(StoreCallbackProperty, 5, 1)             \
 736   F(LoadPropertyWithInterceptorOnly, 3, 1)   \
 737   F(LoadPropertyWithInterceptor, 3, 1)       \
 738   F(LoadElementWithInterceptor, 2, 1)        \
 739   F(StorePropertyWithInterceptor, 3, 1)      \
 740   F(CompareIC_Miss, 3, 1)                    \
 741   F(BinaryOpIC_Miss, 2, 1)                   \
 742   F(CompareNilIC_Miss, 1, 1)                 \
 743   F(Unreachable, 0, 1)                       \
 744   F(ToBooleanIC_Miss, 1, 1)                  \
 745   F(KeyedLoadIC_MissFromStubFailure, 4, 1)   \
 746   F(KeyedStoreIC_MissFromStubFailure, 3, 1)  \
 747   F(StoreIC_MissFromStubFailure, 3, 1)       \
 748   F(ElementsTransitionAndStoreIC_Miss, 4, 1) \
 749   F(BinaryOpIC_MissWithAllocationSite, 3, 1) \
 750   F(LoadIC_MissFromStubFailure, 0, 1)
 751
 752
 753 #define FOR_EACH_INTRINSIC_RETURN_OBJECT(F) \
 754   FOR_EACH_INTRINSIC_IC(F)                  \
 755   FOR_EACH_INTRINSIC_ARRAY(F)               \
 756   FOR_EACH_INTRINSIC_ATOMICS(F)             \
 757   FOR_EACH_INTRINSIC_CLASSES(F)             \
 758   FOR_EACH_INTRINSIC_COLLECTIONS(F)         \
 759   FOR_EACH_INTRINSIC_COMPILER(F)            \
 760   FOR_EACH_INTRINSIC_DATE(F)                \
 761   FOR_EACH_INTRINSIC_DEBUG(F)               \
 762   FOR_EACH_INTRINSIC_FORIN(F)               \
 763   FOR_EACH_INTRINSIC_FUNCTION(F)            \
 764   FOR_EACH_INTRINSIC_FUTEX(F)               \
 765   FOR_EACH_INTRINSIC_GENERATOR(F)           \
 766   FOR_EACH_INTRINSIC_I18N(F)                \
 767   FOR_EACH_INTRINSIC_INTERNAL(F)            \
 768   FOR_EACH_INTRINSIC_JSON(F)                \
 769   FOR_EACH_INTRINSIC_LITERALS(F)            \
 770   FOR_EACH_INTRINSIC_LIVEEDIT(F)            \
 771   FOR_EACH_INTRINSIC_MATHS(F)               \
 772   FOR_EACH_INTRINSIC_NUMBERS(F)             \
 773   FOR_EACH_INTRINSIC_OBJECT(F)              \
 774   FOR_EACH_INTRINSIC_OBSERVE(F)             \
 775   FOR_EACH_INTRINSIC_PROXY(F)               \
 776   FOR_EACH_INTRINSIC_REGEXP(F)              \
 777   FOR_EACH_INTRINSIC_SCOPES(F)              \
 778   FOR_EACH_INTRINSIC_SIMD(F)                \
 779   FOR_EACH_INTRINSIC_STRINGS(F)             \
 780   FOR_EACH_INTRINSIC_SYMBOL(F)              \
 781   FOR_EACH_INTRINSIC_TEST(F)                \
 782   FOR_EACH_INTRINSIC_TYPEDARRAY(F)          \
 783   FOR_EACH_INTRINSIC_URI(F)
 784
 785 // FOR_EACH_INTRINSIC defines the list of all intrinsics, coming in 2 flavors,
 786 // either returning an object or a pair.
 787 #define FOR_EACH_INTRINSIC(F)       \
 788   FOR_EACH_INTRINSIC_RETURN_PAIR(F) \
 789   FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 790
 791
 792 #define F(name, nargs, ressize)                                 \
 793   Object* Runtime_##name(int args_length, Object** args_object, \
 794                          Isolate* isolate);
 795 FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 796 #undef F
 797
 798 //---------------------------------------------------------------------------
 799 // Runtime provides access to all C++ runtime functions.
 800
 801 class RuntimeState {
 802  public:
 803   unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
 804     return &to_upper_mapping_;
 805   }
 806   unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
 807     return &to_lower_mapping_;
 808   }
 809
 810  private:
 811   RuntimeState() {}
 812   unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
 813   unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
 814
 815   friend class Isolate;
 816   friend class Runtime;
 817
 818   DISALLOW_COPY_AND_ASSIGN(RuntimeState);
 819 };
 820
 821
 822 class JavaScriptFrameIterator;  // Forward declaration.
 823
 824
 825 class Runtime : public AllStatic {
 826  public:
 827   enum FunctionId {
 828 #define F(name, nargs, ressize) k##name,
 829 #define I(name, nargs, ressize) kInline##name,
 830     FOR_EACH_INTRINSIC(F) FOR_EACH_INTRINSIC(I)
 831 #undef I
 832 #undef F
 833         kNumFunctions,
 834   };
 835
 836   enum IntrinsicType { RUNTIME, INLINE };
 837
 838   // Intrinsic function descriptor.
 839   struct Function {
 840     FunctionId function_id;
 841     IntrinsicType intrinsic_type;
 842     // The JS name of the function.
 843     const char* name;
 844
 845     // The C++ (native) entry point.  NULL if the function is inlined.
 846     byte* entry;
 847
 848     // The number of arguments expected. nargs is -1 if the function takes
 849     // a variable number of arguments.
 850     int nargs;
 851     // Size of result.  Most functions return a single pointer, size 1.
 852     int result_size;
 853   };
 854
 855   static const int kNotFound = -1;
 856
 857   // Add internalized strings for all the intrinsic function names to a
 858   // StringDictionary.
 859   static void InitializeIntrinsicFunctionNames(Isolate* isolate,
 860                                                Handle<NameDictionary> dict);
 861
 862   // Get the intrinsic function with the given name, which must be internalized.
 863   static const Function* FunctionForName(Handle<String> name);
 864
 865   // Get the intrinsic function with the given FunctionId.
 866   static const Function* FunctionForId(FunctionId id);
 867
 868   // Get the intrinsic function with the given function entry address.
 869   static const Function* FunctionForEntry(Address ref);
 870
 871   MUST_USE_RESULT static MaybeHandle<Object> DeleteObjectProperty(
 872       Isolate* isolate, Handle<JSReceiver> receiver, Handle<Object> key,
 873       LanguageMode language_mode);
 874
 875   MUST_USE_RESULT static MaybeHandle<Object> SetObjectProperty(
 876       Isolate* isolate, Handle<Object> object, Handle<Object> key,
 877       Handle<Object> value, LanguageMode language_mode);
 878
 879   MUST_USE_RESULT static MaybeHandle<Object> GetObjectProperty(
 880       Isolate* isolate, Handle<Object> object, Handle<Object> key,
 881       LanguageMode language_mode = SLOPPY);
 882
 883   MUST_USE_RESULT static MaybeHandle<Object> KeyedGetObjectProperty(
 884       Isolate* isolate, Handle<Object> receiver_obj, Handle<Object> key_obj,
 885       LanguageMode language_mode);
 886
 887   MUST_USE_RESULT static MaybeHandle<Object> GetPrototype(
 888       Isolate* isolate, Handle<Object> object);
 889
 890   MUST_USE_RESULT static MaybeHandle<Name> ToName(Isolate* isolate,
 891                                                   Handle<Object> key);
 892
 893   static void SetupArrayBuffer(Isolate* isolate,
 894                                Handle<JSArrayBuffer> array_buffer,
 895                                bool is_external, void* data,
 896                                size_t allocated_length,
 897                                SharedFlag shared = SharedFlag::kNotShared);
 898
 899   static bool SetupArrayBufferAllocatingData(
 900       Isolate* isolate, Handle<JSArrayBuffer> array_buffer,
 901       size_t allocated_length, bool initialize = true,
 902       SharedFlag shared = SharedFlag::kNotShared);
 903
 904   static void NeuterArrayBuffer(Handle<JSArrayBuffer> array_buffer);
 905
 906   static int FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index);
 907
 908   enum TypedArrayId {
 909     // arrayIds below should be synchromized with typedarray.js natives.
 910     ARRAY_ID_UINT8 = 1,
 911     ARRAY_ID_INT8 = 2,
 912     ARRAY_ID_UINT16 = 3,
 913     ARRAY_ID_INT16 = 4,
 914     ARRAY_ID_UINT32 = 5,
 915     ARRAY_ID_INT32 = 6,
 916     ARRAY_ID_FLOAT32 = 7,
 917     ARRAY_ID_FLOAT64 = 8,
 918     ARRAY_ID_UINT8_CLAMPED = 9,
 919     ARRAY_ID_FIRST = ARRAY_ID_UINT8,
 920     ARRAY_ID_LAST = ARRAY_ID_UINT8_CLAMPED
 921   };
 922
 923   static void ArrayIdToTypeAndSize(int array_id, ExternalArrayType* type,
 924                                    ElementsKind* fixed_elements_kind,
 925                                    size_t* element_size);
 926
 927   // Used in runtime.cc and hydrogen's VisitArrayLiteral.
 928   MUST_USE_RESULT static MaybeHandle<Object> CreateArrayLiteralBoilerplate(
 929       Isolate* isolate, Handle<FixedArray> literals,
 930       Handle<FixedArray> elements, bool is_strong);
 931
 932
 933   static void JSMapInitialize(Isolate* isolate, Handle<JSMap> map);
 934   static void JSMapClear(Isolate* isolate, Handle<JSMap> map);
 935   static void JSSetInitialize(Isolate* isolate, Handle<JSSet> set);
 936   static void JSSetClear(Isolate* isolate, Handle<JSSet> set);
 937
 938   static void WeakCollectionInitialize(
 939       Isolate* isolate, Handle<JSWeakCollection> weak_collection);
 940   static void WeakCollectionSet(Handle<JSWeakCollection> weak_collection,
 941                                 Handle<Object> key, Handle<Object> value,
 942                                 int32_t hash);
 943   static bool WeakCollectionDelete(Handle<JSWeakCollection> weak_collection,
 944                                    Handle<Object> key);
 945   static bool WeakCollectionDelete(Handle<JSWeakCollection> weak_collection,
 946                                    Handle<Object> key, int32_t hash);
 947
 948   static MaybeHandle<JSArray> GetInternalProperties(Isolate* isolate,
 949                                                     Handle<Object>);
 950
 951   static bool AtomicIsLockFree(uint32_t size);
 952 };
 953
 954
 955 std::ostream& operator<<(std::ostream&, Runtime::FunctionId);
 956
 957 //---------------------------------------------------------------------------
 958 // Constants used by interface to runtime functions.
 959
 960 class AllocateDoubleAlignFlag : public BitField<bool, 0, 1> {};
 961 class AllocateTargetSpace : public BitField<AllocationSpace, 1, 3> {};
 962
 963 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 964 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 965 STATIC_ASSERT(LANGUAGE_END == 3);
 966 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 967
 968 //---------------------------------------------------------------------------
 969 // Inline functions
 970
 971 // Assume that 32-bit architectures don't have 64-bit atomic ops.
 972 // TODO(binji): can we do better here?
 973 #if V8_TARGET_ARCH_64_BIT && V8_HOST_ARCH_64_BIT
 974
 975 #define ATOMICS_REQUIRE_LOCK_64_BIT 0
 976
 977 inline bool Runtime::AtomicIsLockFree(uint32_t size) {
 978   return size == 1 || size == 2 || size == 4 || size == 8;
 979 }
 980
 981 #else
 982
 983 #define ATOMICS_REQUIRE_LOCK_64_BIT 1
 984
 985 inline bool Runtime::AtomicIsLockFree(uint32_t size) {
 986   return size == 1 || size == 2 || size == 4;
 987 }
 988
 989 #endif
 990
 991 }  // namespace internal
 992 }  // namespace v8
 993
 994 #endif  // V8_RUNTIME_RUNTIME_H_