src/v8/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 // The interface to C++ runtime functions.
  16
  17 // ----------------------------------------------------------------------------
  18 // RUNTIME_FUNCTION_LIST_ALWAYS defines runtime calls available in both
  19 // release and debug mode.
  20 // This macro should only be used by the macro RUNTIME_FUNCTION_LIST.
  21
  22 // WARNING: RUNTIME_FUNCTION_LIST_ALWAYS_* is a very large macro that caused
  23 // MSVC Intellisense to crash.  It was broken into two macros to work around
  24 // this problem. Please avoid large recursive macros whenever possible.
  25 #define RUNTIME_FUNCTION_LIST_ALWAYS_1(F)                  \
  26   /* Property access */                                    \
  27   F(GetProperty, 2, 1)                                     \
  28   F(KeyedGetProperty, 2, 1)                                \
  29   F(DeleteProperty, 3, 1)                                  \
  30   F(HasOwnProperty, 2, 1)                                  \
  31   F(HasProperty, 2, 1)                                     \
  32   F(HasElement, 2, 1)                                      \
  33   F(IsPropertyEnumerable, 2, 1)                            \
  34   F(GetPropertyNames, 1, 1)                                \
  35   F(GetPropertyNamesFast, 1, 1)                            \
  36   F(GetOwnPropertyNames, 2, 1)                             \
  37   F(GetOwnElementNames, 1, 1)                              \
  38   F(GetInterceptorInfo, 1, 1)                              \
  39   F(GetNamedInterceptorPropertyNames, 1, 1)                \
  40   F(GetIndexedInterceptorElementNames, 1, 1)               \
  41   F(GetArgumentsProperty, 1, 1)                            \
  42   F(ToFastProperties, 1, 1)                                \
  43   F(FinishArrayPrototypeSetup, 1, 1)                       \
  44   F(SpecialArrayFunctions, 0, 1)                           \
  45   F(IsSloppyModeFunction, 1, 1)                            \
  46   F(GetDefaultReceiver, 1, 1)                              \
  47                                                            \
  48   F(GetPrototype, 1, 1)                                    \
  49   F(SetPrototype, 2, 1)                                    \
  50   F(InternalSetPrototype, 2, 1)                            \
  51   F(IsInPrototypeChain, 2, 1)                              \
  52                                                            \
  53   F(GetOwnProperty, 2, 1)                                  \
  54                                                            \
  55   F(IsExtensible, 1, 1)                                    \
  56   F(PreventExtensions, 1, 1)                               \
  57                                                            \
  58   /* Utilities */                                          \
  59   F(CheckIsBootstrapping, 0, 1)                            \
  60   F(GetRootNaN, 0, 1)                                      \
  61   F(Call, -1 /* >= 2 */, 1)                                \
  62   F(Apply, 5, 1)                                           \
  63   F(GetFunctionDelegate, 1, 1)                             \
  64   F(GetConstructorDelegate, 1, 1)                          \
  65   F(DeoptimizeFunction, 1, 1)                              \
  66   F(ClearFunctionTypeFeedback, 1, 1)                       \
  67   F(RunningInSimulator, 0, 1)                              \
  68   F(IsConcurrentRecompilationSupported, 0, 1)              \
  69   F(OptimizeFunctionOnNextCall, -1, 1)                     \
  70   F(NeverOptimizeFunction, 1, 1)                           \
  71   F(GetOptimizationStatus, -1, 1)                          \
  72   F(GetOptimizationCount, 1, 1)                            \
  73   F(UnblockConcurrentRecompilation, 0, 1)                  \
  74   F(CompileForOnStackReplacement, 1, 1)                    \
  75   F(SetAllocationTimeout, -1 /* 2 || 3 */, 1)              \
  76   F(SetNativeFlag, 1, 1)                                   \
  77   F(SetInlineBuiltinFlag, 1, 1)                            \
  78   F(StoreArrayLiteralElement, 5, 1)                        \
  79   F(DebugPrepareStepInIfStepping, 1, 1)                    \
  80   F(DebugPushPromise, 1, 1)                                \
  81   F(DebugPopPromise, 0, 1)                                 \
  82   F(DebugPromiseEvent, 1, 1)                               \
  83   F(DebugAsyncTaskEvent, 1, 1)                             \
  84   F(PromiseRejectEvent, 3, 1)                              \
  85   F(PromiseRevokeReject, 1, 1)                             \
  86   F(PromiseHasHandlerSymbol, 0, 1)                         \
  87   F(FlattenString, 1, 1)                                   \
  88   F(LoadMutableDouble, 2, 1)                               \
  89   F(TryMigrateInstance, 1, 1)                              \
  90   F(NotifyContextDisposed, 0, 1)                           \
  91                                                            \
  92   /* Array join support */                                 \
  93   F(PushIfAbsent, 2, 1)                                    \
  94   F(ArrayConcat, 1, 1)                                     \
  95                                                            \
  96   /* Conversions */                                        \
  97   F(ToBool, 1, 1)                                          \
  98   F(Typeof, 1, 1)                                          \
  99                                                            \
 100   F(Booleanize, 2, 1) /* TODO(turbofan): Only temporary */ \
 101                                                            \
 102   F(StringToNumber, 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                                                            \
 112   F(NumberToInteger, 1, 1)                                 \
 113   F(NumberToIntegerMapMinusZero, 1, 1)                     \
 114   F(NumberToJSUint32, 1, 1)                                \
 115   F(NumberToJSInt32, 1, 1)                                 \
 116                                                            \
 117   /* Arithmetic operations */                              \
 118   F(NumberAdd, 2, 1)                                       \
 119   F(NumberSub, 2, 1)                                       \
 120   F(NumberMul, 2, 1)                                       \
 121   F(NumberDiv, 2, 1)                                       \
 122   F(NumberMod, 2, 1)                                       \
 123   F(NumberUnaryMinus, 1, 1)                                \
 124   F(NumberImul, 2, 1)                                      \
 125                                                            \
 126   F(StringBuilderConcat, 3, 1)                             \
 127   F(StringBuilderJoin, 3, 1)                               \
 128   F(SparseJoinWithSeparator, 3, 1)                         \
 129                                                            \
 130   /* Bit operations */                                     \
 131   F(NumberOr, 2, 1)                                        \
 132   F(NumberAnd, 2, 1)                                       \
 133   F(NumberXor, 2, 1)                                       \
 134                                                            \
 135   F(NumberShl, 2, 1)                                       \
 136   F(NumberShr, 2, 1)                                       \
 137   F(NumberSar, 2, 1)                                       \
 138                                                            \
 139   /* Comparisons */                                        \
 140   F(NumberEquals, 2, 1)                                    \
 141   F(StringEquals, 2, 1)                                    \
 142                                                            \
 143   F(NumberCompare, 3, 1)                                   \
 144   F(SmiLexicographicCompare, 2, 1)                         \
 145                                                            \
 146   /* Math */                                               \
 147   F(MathAcos, 1, 1)                                        \
 148   F(MathAsin, 1, 1)                                        \
 149   F(MathAtan, 1, 1)                                        \
 150   F(MathFloorRT, 1, 1)                                     \
 151   F(MathAtan2, 2, 1)                                       \
 152   F(MathExpRT, 1, 1)                                       \
 153   F(RoundNumber, 1, 1)                                     \
 154   F(MathFround, 1, 1)                                      \
 155   F(RemPiO2, 1, 1)                                         \
 156                                                            \
 157   /* Regular expressions */                                \
 158   F(RegExpCompile, 3, 1)                                   \
 159   F(RegExpExecMultiple, 4, 1)                              \
 160   F(RegExpInitializeObject, 6, 1)                          \
 161                                                            \
 162   /* JSON */                                               \
 163   F(ParseJson, 1, 1)                                       \
 164   F(BasicJSONStringify, 1, 1)                              \
 165   F(QuoteJSONString, 1, 1)                                 \
 166                                                            \
 167   /* Strings */                                            \
 168   F(StringIndexOf, 3, 1)                                   \
 169   F(StringLastIndexOf, 3, 1)                               \
 170   F(StringLocaleCompare, 2, 1)                             \
 171   F(StringReplaceGlobalRegExpWithString, 4, 1)             \
 172   F(StringReplaceOneCharWithString, 3, 1)                  \
 173   F(StringMatch, 3, 1)                                     \
 174   F(StringTrim, 3, 1)                                      \
 175   F(StringToArray, 2, 1)                                   \
 176   F(NewStringWrapper, 1, 1)                                \
 177   F(NewString, 2, 1)                                       \
 178   F(TruncateString, 2, 1)                                  \
 179                                                            \
 180   /* Numbers */                                            \
 181   F(NumberToRadixString, 2, 1)                             \
 182   F(NumberToFixed, 2, 1)                                   \
 183   F(NumberToExponential, 2, 1)                             \
 184   F(NumberToPrecision, 2, 1)                               \
 185   F(IsValidSmi, 1, 1)                                      \
 186                                                            \
 187   /* SIMD */                                               \
 188   F(AllocateFloat32x4, 0, 1)                               \
 189   F(AllocateFloat64x2, 0, 1)                               \
 190   F(AllocateInt32x4, 0, 1)                                 \
 191   F(Float32x4LoadX, 2, 1)                                  \
 192   F(Float32x4LoadXY, 2, 1)                                 \
 193   F(Float32x4LoadXYZ, 2, 1)                                \
 194   F(Float32x4LoadXYZW, 2, 1)                               \
 195   F(Float32x4StoreX, 3, 1)                                 \
 196   F(Float32x4StoreXY, 3, 1)                                \
 197   F(Float32x4StoreXYZ, 3, 1)                               \
 198   F(Float32x4StoreXYZW, 3, 1)                              \
 199   F(Float32x4Abs, 1, 1)                                    \
 200   F(Float32x4BitsToInt32x4, 1, 1)                          \
 201   F(Float32x4Neg, 1, 1)                                    \
 202   F(Float32x4Reciprocal, 1, 1)                             \
 203   F(Float32x4ReciprocalSqrt, 1, 1)                         \
 204   F(Float32x4Sqrt, 1, 1)                                   \
 205   F(Float32x4ToInt32x4, 1, 1)                              \
 206   F(Float32x4Add, 2, 1)                                    \
 207   F(Float32x4Div, 2, 1)                                    \
 208   F(Float32x4Max, 2, 1)                                    \
 209   F(Float32x4Min, 2, 1)                                    \
 210   F(Float32x4Mul, 2, 1)                                    \
 211   F(Float32x4Sub, 2, 1)                                    \
 212   F(Float32x4Equal, 2, 1)                                  \
 213   F(Float32x4NotEqual, 2, 1)                               \
 214   F(Float32x4GreaterThanOrEqual, 2, 1)                     \
 215   F(Float32x4GreaterThan, 2, 1)                            \
 216   F(Float32x4LessThan, 2, 1)                               \
 217   F(Float32x4LessThanOrEqual, 2, 1)                        \
 218   F(Float32x4Shuffle, 2, 1)                                \
 219   F(Float32x4Scale, 2, 1)                                  \
 220   F(Float32x4WithX, 2, 1)                                  \
 221   F(Float32x4WithY, 2, 1)                                  \
 222   F(Float32x4WithZ, 2, 1)                                  \
 223   F(Float32x4WithW, 2, 1)                                  \
 224   F(Float32x4Clamp, 3, 1)                                  \
 225   F(Float32x4ShuffleMix, 3, 1)                             \
 226   F(Float32x4Select, 3, 1)                                 \
 227   F(Float64x2LoadX, 2, 1)                                  \
 228   F(Float64x2LoadXY, 2, 1)                                 \
 229   F(Float64x2StoreX, 3, 1)                                 \
 230   F(Float64x2StoreXY, 3, 1)                                \
 231   F(Float64x2Abs, 1, 1)                                    \
 232   F(Float64x2Neg, 1, 1)                                    \
 233   F(Float64x2Sqrt, 1, 1)                                   \
 234   F(Float64x2Add, 2, 1)                                    \
 235   F(Float64x2Div, 2, 1)                                    \
 236   F(Float64x2Max, 2, 1)                                    \
 237   F(Float64x2Min, 2, 1)                                    \
 238   F(Float64x2Mul, 2, 1)                                    \
 239   F(Float64x2Sub, 2, 1)                                    \
 240   F(Float64x2Scale, 2, 1)                                  \
 241   F(Float64x2WithX, 2, 1)                                  \
 242   F(Float64x2WithY, 2, 1)                                  \
 243   F(Float64x2Clamp, 3, 1)                                  \
 244   F(Int32x4LoadX, 2, 1)                                    \
 245   F(Int32x4LoadXY, 2, 1)                                   \
 246   F(Int32x4LoadXYZ, 2, 1)                                  \
 247   F(Int32x4LoadXYZW, 2, 1)                                 \
 248   F(Int32x4StoreX, 3, 1)                                   \
 249   F(Int32x4StoreXY, 3, 1)                                  \
 250   F(Int32x4StoreXYZ, 3, 1)                                 \
 251   F(Int32x4StoreXYZW, 3, 1)                                \
 252   F(Int32x4BitsToFloat32x4, 1, 1)                          \
 253   F(Int32x4Neg, 1, 1)                                      \
 254   F(Int32x4Not, 1, 1)                                      \
 255   F(Int32x4ToFloat32x4, 1, 1)                              \
 256   F(Int32x4And, 2, 1)                                      \
 257   F(Int32x4Or, 2, 1)                                       \
 258   F(Int32x4Xor, 2, 1)                                      \
 259   F(Int32x4Add, 2, 1)                                      \
 260   F(Int32x4Sub, 2, 1)                                      \
 261   F(Int32x4Mul, 2, 1)                                      \
 262   F(Int32x4Shuffle, 2, 1)                                  \
 263   F(Int32x4WithX, 2, 1)                                    \
 264   F(Int32x4WithY, 2, 1)                                    \
 265   F(Int32x4WithZ, 2, 1)                                    \
 266   F(Int32x4WithW, 2, 1)                                    \
 267   F(Int32x4WithFlagX, 2, 1)                                \
 268   F(Int32x4WithFlagY, 2, 1)                                \
 269   F(Int32x4WithFlagZ, 2, 1)                                \
 270   F(Int32x4WithFlagW, 2, 1)                                \
 271   F(Int32x4GreaterThan, 2, 1)                              \
 272   F(Int32x4Equal, 2, 1)                                    \
 273   F(Int32x4LessThan, 2, 1)                                 \
 274   F(Int32x4Select, 3, 1)                                   \
 275   F(CreateFloat32x4, 4, 1)                                 \
 276   F(Float32x4GetX, 1, 1)                                   \
 277   F(Float32x4GetY, 1, 1)                                   \
 278   F(Float32x4GetZ, 1, 1)                                   \
 279   F(Float32x4GetW, 1, 1)                                   \
 280   F(Float32x4GetSignMask, 1, 1)                            \
 281   F(CreateFloat64x2, 2, 1)                                 \
 282   F(Float64x2GetX, 1, 1)                                   \
 283   F(Float64x2GetY, 1, 1)                                   \
 284   F(Float64x2GetSignMask, 1, 1)                            \
 285   F(CreateInt32x4, 4, 1)                                   \
 286   F(Int32x4GetX, 1, 1)                                     \
 287   F(Int32x4GetY, 1, 1)                                     \
 288   F(Int32x4GetZ, 1, 1)                                     \
 289   F(Int32x4GetW, 1, 1)                                     \
 290   F(Int32x4GetFlagX, 1, 1)                                 \
 291   F(Int32x4GetFlagY, 1, 1)                                 \
 292   F(Int32x4GetFlagZ, 1, 1)                                 \
 293   F(Int32x4GetFlagW, 1, 1)                                 \
 294   F(Int32x4GetSignMask, 1, 1)                              \
 295                                                            \
 296   /* Classes support */                                    \
 297   F(ToMethod, 2, 1)                                        \
 298   F(HomeObjectSymbol, 0, 1)                                \
 299   F(DefineClass, 6, 1)                                     \
 300   F(DefineClassMethod, 3, 1)                               \
 301   F(DefineClassGetter, 3, 1)                               \
 302   F(DefineClassSetter, 3, 1)                               \
 303   F(ClassGetSourceCode, 1, 1)                              \
 304   F(ThrowNonMethodError, 0, 1)                             \
 305   F(ThrowUnsupportedSuperError, 0, 1)                      \
 306   F(LoadFromSuper, 3, 1)                                   \
 307   F(LoadKeyedFromSuper, 3, 1)                              \
 308   F(StoreToSuper_Strict, 4, 1)                             \
 309   F(StoreToSuper_Sloppy, 4, 1)                             \
 310   F(StoreKeyedToSuper_Strict, 4, 1)                        \
 311   F(StoreKeyedToSuper_Sloppy, 4, 1)
 312
 313
 314 #define RUNTIME_FUNCTION_LIST_ALWAYS_2(F)              \
 315   /* Reflection */                                     \
 316   F(FunctionSetInstanceClassName, 2, 1)                \
 317   F(FunctionSetLength, 2, 1)                           \
 318   F(FunctionSetPrototype, 2, 1)                        \
 319   F(FunctionGetName, 1, 1)                             \
 320   F(FunctionSetName, 2, 1)                             \
 321   F(FunctionNameShouldPrintAsAnonymous, 1, 1)          \
 322   F(FunctionMarkNameShouldPrintAsAnonymous, 1, 1)      \
 323   F(FunctionIsGenerator, 1, 1)                         \
 324   F(FunctionIsArrow, 1, 1)                             \
 325   F(FunctionIsConciseMethod, 1, 1)                     \
 326   F(FunctionBindArguments, 4, 1)                       \
 327   F(BoundFunctionGetBindings, 1, 1)                    \
 328   F(FunctionRemovePrototype, 1, 1)                     \
 329   F(FunctionGetSourceCode, 1, 1)                       \
 330   F(FunctionGetScript, 1, 1)                           \
 331   F(FunctionGetScriptSourcePosition, 1, 1)             \
 332   F(FunctionGetPositionForOffset, 2, 1)                \
 333   F(FunctionIsAPIFunction, 1, 1)                       \
 334   F(FunctionIsBuiltin, 1, 1)                           \
 335   F(GetScript, 1, 1)                                   \
 336   F(CollectStackTrace, 2, 1)                           \
 337   F(GetV8Version, 0, 1)                                \
 338   F(GeneratorGetFunction, 1, 1)                        \
 339   F(GeneratorGetContext, 1, 1)                         \
 340   F(GeneratorGetReceiver, 1, 1)                        \
 341   F(GeneratorGetContinuation, 1, 1)                    \
 342   F(GeneratorGetSourcePosition, 1, 1)                  \
 343                                                        \
 344   F(SetCode, 2, 1)                                     \
 345                                                        \
 346   F(CreateApiFunction, 2, 1)                           \
 347   F(IsTemplate, 1, 1)                                  \
 348   F(GetTemplateField, 2, 1)                            \
 349   F(DisableAccessChecks, 1, 1)                         \
 350   F(EnableAccessChecks, 1, 1)                          \
 351                                                        \
 352   /* Dates */                                          \
 353   F(DateCurrentTime, 0, 1)                             \
 354   F(DateParseString, 2, 1)                             \
 355   F(DateLocalTimezone, 1, 1)                           \
 356   F(DateToUTC, 1, 1)                                   \
 357   F(DateMakeDay, 2, 1)                                 \
 358   F(DateSetValue, 3, 1)                                \
 359   F(DateCacheVersion, 0, 1)                            \
 360                                                        \
 361   /* Globals */                                        \
 362   F(CompileString, 2, 1)                               \
 363                                                        \
 364   /* Eval */                                           \
 365   F(GlobalProxy, 1, 1)                                 \
 366   F(IsAttachedGlobal, 1, 1)                            \
 367                                                        \
 368   F(AddNamedProperty, 4, 1)                            \
 369   F(AddPropertyForTemplate, 4, 1)                      \
 370   F(SetProperty, 4, 1)                                 \
 371   F(AddElement, 4, 1)                                  \
 372   F(DefineApiAccessorProperty, 5, 1)                   \
 373   F(DefineDataPropertyUnchecked, 4, 1)                 \
 374   F(DefineAccessorPropertyUnchecked, 5, 1)             \
 375   F(GetDataProperty, 2, 1)                             \
 376                                                        \
 377   /* Arrays */                                         \
 378   F(RemoveArrayHoles, 2, 1)                            \
 379   F(GetArrayKeys, 2, 1)                                \
 380   F(MoveArrayContents, 2, 1)                           \
 381   F(EstimateNumberOfElements, 1, 1)                    \
 382   F(NormalizeElements, 1, 1)                           \
 383   F(HasComplexElements, 1, 1)                          \
 384                                                        \
 385   /* Getters and Setters */                            \
 386   F(LookupAccessor, 3, 1)                              \
 387                                                        \
 388   /* ES5 */                                            \
 389   F(ObjectFreeze, 1, 1)                                \
 390                                                        \
 391   /* Harmony modules */                                \
 392   F(IsJSModule, 1, 1)                                  \
 393                                                        \
 394   /* Harmony symbols */                                \
 395   F(CreateSymbol, 1, 1)                                \
 396   F(CreatePrivateSymbol, 1, 1)                         \
 397   F(CreateGlobalPrivateOwnSymbol, 1, 1)                \
 398   F(CreatePrivateOwnSymbol, 1, 1)                      \
 399   F(NewSymbolWrapper, 1, 1)                            \
 400   F(SymbolDescription, 1, 1)                           \
 401   F(SymbolRegistry, 0, 1)                              \
 402   F(SymbolIsPrivate, 1, 1)                             \
 403                                                        \
 404   /* Harmony proxies */                                \
 405   F(CreateJSProxy, 2, 1)                               \
 406   F(CreateJSFunctionProxy, 4, 1)                       \
 407   F(IsJSFunctionProxy, 1, 1)                           \
 408   F(GetHandler, 1, 1)                                  \
 409   F(GetCallTrap, 1, 1)                                 \
 410   F(GetConstructTrap, 1, 1)                            \
 411   F(Fix, 1, 1)                                         \
 412                                                        \
 413   /* Harmony sets */                                   \
 414   F(SetInitialize, 1, 1)                               \
 415   F(SetAdd, 2, 1)                                      \
 416   F(SetHas, 2, 1)                                      \
 417   F(SetDelete, 2, 1)                                   \
 418   F(SetClear, 1, 1)                                    \
 419   F(SetGetSize, 1, 1)                                  \
 420                                                        \
 421   F(SetIteratorInitialize, 3, 1)                       \
 422   F(SetIteratorClone, 1, 1)                            \
 423   F(SetIteratorNext, 2, 1)                             \
 424                                                        \
 425   /* Harmony maps */                                   \
 426   F(MapInitialize, 1, 1)                               \
 427   F(MapGet, 2, 1)                                      \
 428   F(MapHas, 2, 1)                                      \
 429   F(MapDelete, 2, 1)                                   \
 430   F(MapClear, 1, 1)                                    \
 431   F(MapSet, 3, 1)                                      \
 432   F(MapGetSize, 1, 1)                                  \
 433                                                        \
 434   F(MapIteratorInitialize, 3, 1)                       \
 435   F(MapIteratorClone, 1, 1)                            \
 436   F(MapIteratorNext, 2, 1)                             \
 437                                                        \
 438   /* Harmony weak maps and sets */                     \
 439   F(WeakCollectionInitialize, 1, 1)                    \
 440   F(WeakCollectionGet, 2, 1)                           \
 441   F(WeakCollectionHas, 2, 1)                           \
 442   F(WeakCollectionDelete, 2, 1)                        \
 443   F(WeakCollectionSet, 3, 1)                           \
 444                                                        \
 445   F(GetWeakMapEntries, 1, 1)                           \
 446   F(GetWeakSetValues, 1, 1)                            \
 447                                                        \
 448   /* Harmony events */                                 \
 449   F(EnqueueMicrotask, 1, 1)                            \
 450   F(RunMicrotasks, 0, 1)                               \
 451                                                        \
 452   /* Harmony observe */                                \
 453   F(IsObserved, 1, 1)                                  \
 454   F(SetIsObserved, 1, 1)                               \
 455   F(GetObservationState, 0, 1)                         \
 456   F(ObservationWeakMapCreate, 0, 1)                    \
 457   F(ObserverObjectAndRecordHaveSameOrigin, 3, 1)       \
 458   F(ObjectWasCreatedInCurrentOrigin, 1, 1)             \
 459   F(GetObjectContextObjectObserve, 1, 1)               \
 460   F(GetObjectContextObjectGetNotifier, 1, 1)           \
 461   F(GetObjectContextNotifierPerformChange, 1, 1)       \
 462                                                        \
 463   /* Harmony typed arrays */                           \
 464   F(ArrayBufferInitialize, 2, 1)                       \
 465   F(ArrayBufferSliceImpl, 3, 1)                        \
 466   F(ArrayBufferIsView, 1, 1)                           \
 467   F(ArrayBufferNeuter, 1, 1)                           \
 468                                                        \
 469   F(IsTypedArray, 1, 1)                                \
 470   F(TypedArrayInitializeFromArrayLike, 4, 1)           \
 471   F(TypedArrayGetBuffer, 1, 1)                         \
 472   F(TypedArraySetFastCases, 3, 1)                      \
 473                                                        \
 474   F(DataViewGetBuffer, 1, 1)                           \
 475   F(DataViewGetInt8, 3, 1)                             \
 476   F(DataViewGetUint8, 3, 1)                            \
 477   F(DataViewGetInt16, 3, 1)                            \
 478   F(DataViewGetUint16, 3, 1)                           \
 479   F(DataViewGetInt32, 3, 1)                            \
 480   F(DataViewGetUint32, 3, 1)                           \
 481   F(DataViewGetFloat32, 3, 1)                          \
 482   F(DataViewGetFloat64, 3, 1)                          \
 483                                                        \
 484   F(DataViewSetInt8, 4, 1)                             \
 485   F(DataViewSetUint8, 4, 1)                            \
 486   F(DataViewSetInt16, 4, 1)                            \
 487   F(DataViewSetUint16, 4, 1)                           \
 488   F(DataViewSetInt32, 4, 1)                            \
 489   F(DataViewSetUint32, 4, 1)                           \
 490   F(DataViewSetFloat32, 4, 1)                          \
 491   F(DataViewSetFloat64, 4, 1)                          \
 492                                                        \
 493   /* Statements */                                     \
 494   F(NewObjectFromBound, 1, 1)                          \
 495                                                        \
 496   /* Declarations and initialization */                \
 497   F(InitializeVarGlobal, 3, 1)                         \
 498   F(OptimizeObjectForAddingMultipleProperties, 2, 1)   \
 499                                                        \
 500   /* Debugging */                                      \
 501   F(DebugPrint, 1, 1)                                  \
 502   F(GlobalPrint, 1, 1)                                 \
 503   F(DebugTrace, 0, 1)                                  \
 504   F(TraceEnter, 0, 1)                                  \
 505   F(TraceExit, 1, 1)                                   \
 506   F(Abort, 1, 1)                                       \
 507   F(AbortJS, 1, 1)                                     \
 508   F(NativeScriptsCount, 0, 1)                          \
 509   /* ES5 */                                            \
 510   F(OwnKeys, 1, 1)                                     \
 511                                                        \
 512   /* Message objects */                                \
 513   F(MessageGetStartPosition, 1, 1)                     \
 514   F(MessageGetScript, 1, 1)                            \
 515                                                        \
 516   /* Pseudo functions - handled as macros by parser */ \
 517   F(IS_VAR, 1, 1)                                      \
 518                                                        \
 519   /* expose boolean functions from objects-inl.h */    \
 520   F(HasFastSmiElements, 1, 1)                          \
 521   F(HasFastSmiOrObjectElements, 1, 1)                  \
 522   F(HasFastObjectElements, 1, 1)                       \
 523   F(HasFastDoubleElements, 1, 1)                       \
 524   F(HasFastHoleyElements, 1, 1)                        \
 525   F(HasDictionaryElements, 1, 1)                       \
 526   F(HasSloppyArgumentsElements, 1, 1)                  \
 527   F(HasExternalUint8ClampedElements, 1, 1)             \
 528   F(HasExternalArrayElements, 1, 1)                    \
 529   F(HasExternalInt8Elements, 1, 1)                     \
 530   F(HasExternalUint8Elements, 1, 1)                    \
 531   F(HasExternalInt16Elements, 1, 1)                    \
 532   F(HasExternalUint16Elements, 1, 1)                   \
 533   F(HasExternalInt32Elements, 1, 1)                    \
 534   F(HasExternalUint32Elements, 1, 1)                   \
 535   F(HasExternalFloat32Elements, 1, 1)                  \
 536   F(HasExternalFloat32x4Elements, 1, 1)                \
 537   F(HasExternalInt32x4Elements, 1, 1)                  \
 538   F(HasExternalFloat64x2Elements, 1, 1)                \
 539   F(HasExternalFloat64Elements, 1, 1)                  \
 540   F(HasFixedUint8ClampedElements, 1, 1)                \
 541   F(HasFixedInt8Elements, 1, 1)                        \
 542   F(HasFixedUint8Elements, 1, 1)                       \
 543   F(HasFixedInt16Elements, 1, 1)                       \
 544   F(HasFixedUint16Elements, 1, 1)                      \
 545   F(HasFixedInt32Elements, 1, 1)                       \
 546   F(HasFixedUint32Elements, 1, 1)                      \
 547   F(HasFixedFloat32Elements, 1, 1)                     \
 548   F(HasFixedFloat64Elements, 1, 1)                     \
 549   F(HasFastProperties, 1, 1)                           \
 550   F(TransitionElementsKind, 2, 1)                      \
 551   F(HaveSameMap, 2, 1)                                 \
 552   F(IsJSGlobalProxy, 1, 1)                             \
 553   F(ForInCacheArrayLength, 2, 1) /* TODO(turbofan): Only temporary */
 554
 555
 556 #define RUNTIME_FUNCTION_LIST_ALWAYS_3(F)                    \
 557   /* String and Regexp */                                    \
 558   F(NumberToStringRT, 1, 1)                                  \
 559   F(RegExpConstructResult, 3, 1)                             \
 560   F(RegExpExecRT, 4, 1)                                      \
 561   F(StringAdd, 2, 1)                                         \
 562   F(SubString, 3, 1)                                         \
 563   F(InternalizeString, 1, 1)                                 \
 564   F(StringCompare, 2, 1)                                     \
 565   F(StringCharCodeAtRT, 2, 1)                                \
 566   F(GetFromCache, 2, 1)                                      \
 567                                                              \
 568   /* Compilation */                                          \
 569   F(CompileLazy, 1, 1)                                       \
 570   F(CompileOptimized, 2, 1)                                  \
 571   F(TryInstallOptimizedCode, 1, 1)                           \
 572   F(NotifyDeoptimized, 1, 1)                                 \
 573   F(NotifyStubFailure, 0, 1)                                 \
 574                                                              \
 575   /* Utilities */                                            \
 576   F(AllocateInNewSpace, 1, 1)                                \
 577   F(AllocateInTargetSpace, 2, 1)                             \
 578   F(AllocateHeapNumber, 0, 1)                                \
 579   F(NumberToSmi, 1, 1)                                       \
 580   F(NumberToStringSkipCache, 1, 1)                           \
 581                                                              \
 582   F(NewArguments, 1, 1) /* TODO(turbofan): Only temporary */ \
 583   F(NewSloppyArguments, 3, 1)                                \
 584   F(NewStrictArguments, 3, 1)                                \
 585                                                              \
 586   /* Harmony generators */                                   \
 587   F(CreateJSGeneratorObject, 0, 1)                           \
 588   F(SuspendJSGeneratorObject, 1, 1)                          \
 589   F(ResumeJSGeneratorObject, 3, 1)                           \
 590   F(ThrowGeneratorStateError, 1, 1)                          \
 591                                                              \
 592   /* Arrays */                                               \
 593   F(ArrayConstructor, -1, 1)                                 \
 594   F(InternalArrayConstructor, -1, 1)                         \
 595                                                              \
 596   /* Literals */                                             \
 597   F(MaterializeRegExpLiteral, 4, 1)                          \
 598   F(CreateObjectLiteral, 4, 1)                               \
 599   F(CreateArrayLiteral, 4, 1)                                \
 600   F(CreateArrayLiteralStubBailout, 3, 1)                     \
 601                                                              \
 602   /* Statements */                                           \
 603   F(NewClosure, 3, 1)                                        \
 604   F(NewClosureFromStubFailure, 1, 1)                         \
 605   F(NewObject, 1, 1)                                         \
 606   F(NewObjectWithAllocationSite, 2, 1)                       \
 607   F(FinalizeInstanceSize, 1, 1)                              \
 608   F(Throw, 1, 1)                                             \
 609   F(ReThrow, 1, 1)                                           \
 610   F(ThrowReferenceError, 1, 1)                               \
 611   F(ThrowNotDateError, 0, 1)                                 \
 612   F(StackGuard, 0, 1)                                        \
 613   F(Interrupt, 0, 1)                                         \
 614   F(PromoteScheduledException, 0, 1)                         \
 615                                                              \
 616   /* Contexts */                                             \
 617   F(NewGlobalContext, 2, 1)                                  \
 618   F(NewFunctionContext, 1, 1)                                \
 619   F(PushWithContext, 2, 1)                                   \
 620   F(PushCatchContext, 3, 1)                                  \
 621   F(PushBlockContext, 2, 1)                                  \
 622   F(PushModuleContext, 2, 1)                                 \
 623   F(DeleteLookupSlot, 2, 1)                                  \
 624   F(StoreLookupSlot, 4, 1)                                   \
 625                                                              \
 626   /* Declarations and initialization */                      \
 627   F(DeclareGlobals, 3, 1)                                    \
 628   F(DeclareModules, 1, 1)                                    \
 629   F(DeclareLookupSlot, 4, 1)                                 \
 630   F(InitializeConstGlobal, 2, 1)                             \
 631   F(InitializeLegacyConstLookupSlot, 3, 1)                   \
 632                                                              \
 633   /* Maths */                                                \
 634   F(MathPowSlow, 2, 1)                                       \
 635   F(MathPowRT, 2, 1)
 636
 637
 638 #define RUNTIME_FUNCTION_LIST_RETURN_PAIR(F)              \
 639   F(LoadLookupSlot, 2, 2)                                 \
 640   F(LoadLookupSlotNoReferenceError, 2, 2)                 \
 641   F(ResolvePossiblyDirectEval, 6, 2)                      \
 642   F(ForInInit, 2, 2) /* TODO(turbofan): Only temporary */ \
 643   F(ForInNext, 4, 2) /* TODO(turbofan): Only temporary */
 644
 645
 646 #define RUNTIME_FUNCTION_LIST_DEBUGGER(F)           \
 647   /* Debugger support*/                             \
 648   F(DebugBreak, 0, 1)                               \
 649   F(SetDebugEventListener, 2, 1)                    \
 650   F(Break, 0, 1)                                    \
 651   F(DebugGetPropertyDetails, 2, 1)                  \
 652   F(DebugGetProperty, 2, 1)                         \
 653   F(DebugPropertyTypeFromDetails, 1, 1)             \
 654   F(DebugPropertyAttributesFromDetails, 1, 1)       \
 655   F(DebugPropertyIndexFromDetails, 1, 1)            \
 656   F(DebugNamedInterceptorPropertyValue, 2, 1)       \
 657   F(DebugIndexedInterceptorElementValue, 2, 1)      \
 658   F(CheckExecutionState, 1, 1)                      \
 659   F(GetFrameCount, 1, 1)                            \
 660   F(GetFrameDetails, 2, 1)                          \
 661   F(GetScopeCount, 2, 1)                            \
 662   F(GetStepInPositions, 2, 1)                       \
 663   F(GetScopeDetails, 4, 1)                          \
 664   F(GetAllScopesDetails, 4, 1)                      \
 665   F(GetFunctionScopeCount, 1, 1)                    \
 666   F(GetFunctionScopeDetails, 2, 1)                  \
 667   F(SetScopeVariableValue, 6, 1)                    \
 668   F(DebugPrintScopes, 0, 1)                         \
 669   F(GetThreadCount, 1, 1)                           \
 670   F(GetThreadDetails, 2, 1)                         \
 671   F(SetDisableBreak, 1, 1)                          \
 672   F(GetBreakLocations, 2, 1)                        \
 673   F(SetFunctionBreakPoint, 3, 1)                    \
 674   F(SetScriptBreakPoint, 4, 1)                      \
 675   F(ClearBreakPoint, 1, 1)                          \
 676   F(ChangeBreakOnException, 2, 1)                   \
 677   F(IsBreakOnException, 1, 1)                       \
 678   F(PrepareStep, 4, 1)                              \
 679   F(ClearStepping, 0, 1)                            \
 680   F(DebugEvaluate, 6, 1)                            \
 681   F(DebugEvaluateGlobal, 4, 1)                      \
 682   F(DebugGetLoadedScripts, 0, 1)                    \
 683   F(DebugReferencedBy, 3, 1)                        \
 684   F(DebugConstructedBy, 2, 1)                       \
 685   F(DebugGetPrototype, 1, 1)                        \
 686   F(DebugSetScriptSource, 2, 1)                     \
 687   F(DebugCallbackSupportsStepping, 1, 1)            \
 688   F(SystemBreak, 0, 1)                              \
 689   F(DebugDisassembleFunction, 1, 1)                 \
 690   F(DebugDisassembleConstructor, 1, 1)              \
 691   F(FunctionGetInferredName, 1, 1)                  \
 692   F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
 693   F(LiveEditGatherCompileInfo, 2, 1)                \
 694   F(LiveEditReplaceScript, 3, 1)                    \
 695   F(LiveEditReplaceFunctionCode, 2, 1)              \
 696   F(LiveEditFunctionSourceUpdated, 1, 1)            \
 697   F(LiveEditFunctionSetScript, 2, 1)                \
 698   F(LiveEditReplaceRefToNestedFunction, 3, 1)       \
 699   F(LiveEditPatchFunctionPositions, 2, 1)           \
 700   F(LiveEditCheckAndDropActivations, 2, 1)          \
 701   F(LiveEditCompareStrings, 2, 1)                   \
 702   F(LiveEditRestartFrame, 2, 1)                     \
 703   F(GetFunctionCodePositionFromSource, 2, 1)        \
 704   F(ExecuteInDebugContext, 2, 1)                    \
 705                                                     \
 706   F(SetFlags, 1, 1)                                 \
 707   F(CollectGarbage, 1, 1)                           \
 708   F(GetHeapUsage, 0, 1)
 709
 710
 711 #ifdef V8_I18N_SUPPORT
 712 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F) \
 713   /* i18n support */                          \
 714   /* Standalone, helper methods. */           \
 715   F(CanonicalizeLanguageTag, 1, 1)            \
 716   F(AvailableLocalesOf, 1, 1)                 \
 717   F(GetDefaultICULocale, 0, 1)                \
 718   F(GetLanguageTagVariants, 1, 1)             \
 719   F(IsInitializedIntlObject, 1, 1)            \
 720   F(IsInitializedIntlObjectOfType, 2, 1)      \
 721   F(MarkAsInitializedIntlObjectOfType, 3, 1)  \
 722   F(GetImplFromInitializedIntlObject, 1, 1)   \
 723                                               \
 724   /* Date format and parse. */                \
 725   F(CreateDateTimeFormat, 3, 1)               \
 726   F(InternalDateFormat, 2, 1)                 \
 727   F(InternalDateParse, 2, 1)                  \
 728                                               \
 729   /* Number format and parse. */              \
 730   F(CreateNumberFormat, 3, 1)                 \
 731   F(InternalNumberFormat, 2, 1)               \
 732   F(InternalNumberParse, 2, 1)                \
 733                                               \
 734   /* Collator. */                             \
 735   F(CreateCollator, 3, 1)                     \
 736   F(InternalCompare, 3, 1)                    \
 737                                               \
 738   /* String.prototype.normalize. */           \
 739   F(StringNormalize, 2, 1)                    \
 740                                               \
 741   /* Break iterator. */                       \
 742   F(CreateBreakIterator, 3, 1)                \
 743   F(BreakIteratorAdoptText, 2, 1)             \
 744   F(BreakIteratorFirst, 1, 1)                 \
 745   F(BreakIteratorNext, 1, 1)                  \
 746   F(BreakIteratorCurrent, 1, 1)               \
 747   F(BreakIteratorBreakType, 1, 1)
 748
 749 #else
 750 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F)
 751 #endif
 752
 753
 754 // ----------------------------------------------------------------------------
 755 // RUNTIME_FUNCTION_LIST defines all runtime functions accessed
 756 // either directly by id (via the code generator), or indirectly
 757 // via a native call by name (from within JS code).
 758 // Entries have the form F(name, number of arguments, number of return values).
 759
 760 #define RUNTIME_FUNCTION_LIST_RETURN_OBJECT(F) \
 761   RUNTIME_FUNCTION_LIST_ALWAYS_1(F)            \
 762   RUNTIME_FUNCTION_LIST_ALWAYS_2(F)            \
 763   RUNTIME_FUNCTION_LIST_ALWAYS_3(F)            \
 764   RUNTIME_FUNCTION_LIST_DEBUGGER(F)            \
 765   RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F)
 766
 767
 768 #define RUNTIME_FUNCTION_LIST(F)         \
 769   RUNTIME_FUNCTION_LIST_RETURN_OBJECT(F) \
 770   RUNTIME_FUNCTION_LIST_RETURN_PAIR(F)
 771
 772 // ----------------------------------------------------------------------------
 773 // INLINE_FUNCTION_LIST defines all inlined functions accessed
 774 // with a native call of the form %_name from within JS code.
 775 // Entries have the form F(name, number of arguments, number of return values).
 776 #define INLINE_FUNCTION_LIST(F)                             \
 777   F(IsSmi, 1, 1)                                            \
 778   F(IsNonNegativeSmi, 1, 1)                                 \
 779   F(IsArray, 1, 1)                                          \
 780   F(IsRegExp, 1, 1)                                         \
 781   F(IsJSProxy, 1, 1)                                        \
 782   F(IsConstructCall, 0, 1)                                  \
 783   F(CallFunction, -1 /* receiver + n args + function */, 1) \
 784   F(ArgumentsLength, 0, 1)                                  \
 785   F(Arguments, 1, 1)                                        \
 786   F(ValueOf, 1, 1)                                          \
 787   F(SetValueOf, 2, 1)                                       \
 788   F(DateField, 2 /* date object, field index */, 1)         \
 789   F(StringCharFromCode, 1, 1)                               \
 790   F(StringCharAt, 2, 1)                                     \
 791   F(OneByteSeqStringSetChar, 3, 1)                          \
 792   F(TwoByteSeqStringSetChar, 3, 1)                          \
 793   F(ObjectEquals, 2, 1)                                     \
 794   F(IsObject, 1, 1)                                         \
 795   F(IsFunction, 1, 1)                                       \
 796   F(IsUndetectableObject, 1, 1)                             \
 797   F(IsSpecObject, 1, 1)                                     \
 798   F(IsStringWrapperSafeForDefaultValueOf, 1, 1)             \
 799   F(MathPow, 2, 1)                                          \
 800   F(IsMinusZero, 1, 1)                                      \
 801   F(HasCachedArrayIndex, 1, 1)                              \
 802   F(GetCachedArrayIndex, 1, 1)                              \
 803   F(FastOneByteArrayJoin, 2, 1)                             \
 804   F(GeneratorNext, 2, 1)                                    \
 805   F(GeneratorThrow, 2, 1)                                   \
 806   F(DebugBreakInOptimizedCode, 0, 1)                        \
 807   F(ClassOf, 1, 1)                                          \
 808   F(StringCharCodeAt, 2, 1)                                 \
 809   F(StringAdd, 2, 1)                                        \
 810   F(SubString, 3, 1)                                        \
 811   F(StringCompare, 2, 1)                                    \
 812   F(RegExpExec, 4, 1)                                       \
 813   F(RegExpConstructResult, 3, 1)                            \
 814   F(GetFromCache, 2, 1)                                     \
 815   F(NumberToString, 1, 1)                                   \
 816   F(DebugIsActive, 0, 1)
 817
 818
 819 // ----------------------------------------------------------------------------
 820 // INLINE_OPTIMIZED_FUNCTION_LIST defines all inlined functions accessed
 821 // with a native call of the form %_name from within JS code that also have
 822 // a corresponding runtime function, that is called from non-optimized code.
 823 // For the benefit of (fuzz) tests, the runtime version can also be called
 824 // directly as %name (i.e. without the leading underscore).
 825 // Entries have the form F(name, number of arguments, number of return values).
 826 #define INLINE_OPTIMIZED_FUNCTION_LIST(F) \
 827   /* Typed Arrays */                      \
 828   F(TypedArrayInitialize, 5, 1)           \
 829   F(DataViewInitialize, 4, 1)             \
 830   F(MaxSmi, 0, 1)                         \
 831   F(TypedArrayMaxSizeInHeap, 0, 1)        \
 832   F(ArrayBufferViewGetByteLength, 1, 1)   \
 833   F(ArrayBufferViewGetByteOffset, 1, 1)   \
 834   F(TypedArrayGetLength, 1, 1)            \
 835   /* ArrayBuffer */                       \
 836   F(ArrayBufferGetByteLength, 1, 1)       \
 837   /* Maths */                             \
 838   F(ConstructDouble, 2, 1)                \
 839   F(DoubleHi, 1, 1)                       \
 840   F(DoubleLo, 1, 1)                       \
 841   F(MathSqrtRT, 1, 1)                     \
 842   F(MathLogRT, 1, 1)
 843
 844
 845 //---------------------------------------------------------------------------
 846 // Runtime provides access to all C++ runtime functions.
 847
 848 class RuntimeState {
 849  public:
 850   unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
 851     return &to_upper_mapping_;
 852   }
 853   unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
 854     return &to_lower_mapping_;
 855   }
 856
 857  private:
 858   RuntimeState() {}
 859   unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
 860   unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
 861
 862   friend class Isolate;
 863   friend class Runtime;
 864
 865   DISALLOW_COPY_AND_ASSIGN(RuntimeState);
 866 };
 867
 868
 869 class JavaScriptFrameIterator;  // Forward declaration.
 870
 871
 872 class Runtime : public AllStatic {
 873  public:
 874   enum FunctionId {
 875 #define F(name, nargs, ressize) k##name,
 876     RUNTIME_FUNCTION_LIST(F) INLINE_OPTIMIZED_FUNCTION_LIST(F)
 877 #undef F
 878 #define F(name, nargs, ressize) kInline##name,
 879     INLINE_FUNCTION_LIST(F)
 880 #undef F
 881 #define F(name, nargs, ressize) kInlineOptimized##name,
 882     INLINE_OPTIMIZED_FUNCTION_LIST(F)
 883 #undef F
 884     kNumFunctions,
 885     kFirstInlineFunction = kInlineIsSmi
 886   };
 887
 888   enum IntrinsicType { RUNTIME, INLINE, INLINE_OPTIMIZED };
 889
 890   // Intrinsic function descriptor.
 891   struct Function {
 892     FunctionId function_id;
 893     IntrinsicType intrinsic_type;
 894     // The JS name of the function.
 895     const char* name;
 896
 897     // The C++ (native) entry point.  NULL if the function is inlined.
 898     byte* entry;
 899
 900     // The number of arguments expected. nargs is -1 if the function takes
 901     // a variable number of arguments.
 902     int nargs;
 903     // Size of result.  Most functions return a single pointer, size 1.
 904     int result_size;
 905   };
 906
 907   static const int kNotFound = -1;
 908
 909   // Add internalized strings for all the intrinsic function names to a
 910   // StringDictionary.
 911   static void InitializeIntrinsicFunctionNames(Isolate* isolate,
 912                                                Handle<NameDictionary> dict);
 913
 914   // Get the intrinsic function with the given name, which must be internalized.
 915   static const Function* FunctionForName(Handle<String> name);
 916
 917   // Get the intrinsic function with the given FunctionId.
 918   static const Function* FunctionForId(FunctionId id);
 919
 920   // Get the intrinsic function with the given function entry address.
 921   static const Function* FunctionForEntry(Address ref);
 922
 923   // TODO(1240886): Some of the following methods are *not* handle safe, but
 924   // accept handle arguments. This seems fragile.
 925
 926   // Support getting the characters in a string using [] notation as
 927   // in Firefox/SpiderMonkey, Safari and Opera.
 928   MUST_USE_RESULT static MaybeHandle<Object> GetElementOrCharAt(
 929       Isolate* isolate, Handle<Object> object, uint32_t index);
 930
 931   MUST_USE_RESULT static MaybeHandle<Object> SetObjectProperty(
 932       Isolate* isolate, Handle<Object> object, Handle<Object> key,
 933       Handle<Object> value, StrictMode strict_mode);
 934
 935   MUST_USE_RESULT static MaybeHandle<Object> DefineObjectProperty(
 936       Handle<JSObject> object, Handle<Object> key, Handle<Object> value,
 937       PropertyAttributes attr);
 938
 939   MUST_USE_RESULT static MaybeHandle<Object> GetObjectProperty(
 940       Isolate* isolate, Handle<Object> object, Handle<Object> key);
 941
 942   MUST_USE_RESULT static MaybeHandle<Name> ToName(Isolate* isolate,
 943                                                   Handle<Object> key);
 944
 945   static void SetupArrayBuffer(Isolate* isolate,
 946                                Handle<JSArrayBuffer> array_buffer,
 947                                bool is_external, void* data,
 948                                size_t allocated_length);
 949
 950   static bool SetupArrayBufferAllocatingData(Isolate* isolate,
 951                                              Handle<JSArrayBuffer> array_buffer,
 952                                              size_t allocated_length,
 953                                              bool initialize = true);
 954
 955   static void NeuterArrayBuffer(Handle<JSArrayBuffer> array_buffer);
 956
 957   static void FreeArrayBuffer(Isolate* isolate,
 958                               JSArrayBuffer* phantom_array_buffer);
 959
 960   static int FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index);
 961
 962   enum TypedArrayId {
 963     // arrayIds below should be synchromized with typedarray.js natives.
 964     ARRAY_ID_UINT8 = 1,
 965     ARRAY_ID_INT8 = 2,
 966     ARRAY_ID_UINT16 = 3,
 967     ARRAY_ID_INT16 = 4,
 968     ARRAY_ID_UINT32 = 5,
 969     ARRAY_ID_INT32 = 6,
 970     ARRAY_ID_FLOAT32 = 7,
 971     ARRAY_ID_FLOAT64 = 8,
 972     ARRAY_ID_UINT8_CLAMPED = 9,
 973     ARRAY_ID_FLOAT32x4 = 10,
 974     ARRAY_ID_FLOAT64x2 = 11,
 975     ARRAY_ID_INT32x4 = 12,
 976     ARRAY_ID_FIRST = ARRAY_ID_UINT8,
 977     ARRAY_ID_LAST = ARRAY_ID_INT32x4
 978   };
 979
 980   static void ArrayIdToTypeAndSize(int array_id, ExternalArrayType* type,
 981                                    ElementsKind* external_elements_kind,
 982                                    ElementsKind* fixed_elements_kind,
 983                                    size_t* element_size);
 984
 985   // Used in runtime.cc and hydrogen's VisitArrayLiteral.
 986   MUST_USE_RESULT static MaybeHandle<Object> CreateArrayLiteralBoilerplate(
 987       Isolate* isolate, Handle<FixedArray> literals,
 988       Handle<FixedArray> elements);
 989 };
 990
 991
 992 std::ostream& operator<<(std::ostream&, Runtime::FunctionId);
 993
 994 //---------------------------------------------------------------------------
 995 // Constants used by interface to runtime functions.
 996
 997 class AllocateDoubleAlignFlag : public BitField<bool, 0, 1> {};
 998 class AllocateTargetSpace : public BitField<AllocationSpace, 1, 3> {};
 999
1000 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
1001 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
1002 class DeclareGlobalsStrictMode : public BitField<StrictMode, 2, 1> {};
1003
1004 }  // namespace internal
1005 }  // namespace v8
1006
1007 #endif  // V8_RUNTIME_RUNTIME_H_