1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef V8_RUNTIME_H_ 29 #define V8_RUNTIME_H_ 30 31 #include "allocation.h" 32 #include "zone.h" 33 34 namespace v8 { 35 namespace internal { 36 37 // The interface to C++ runtime functions. 38 39 // ---------------------------------------------------------------------------- 40 // RUNTIME_FUNCTION_LIST_ALWAYS defines runtime calls available in both 41 // release and debug mode. 42 // This macro should only be used by the macro RUNTIME_FUNCTION_LIST. 43 44 // WARNING: RUNTIME_FUNCTION_LIST_ALWAYS_* is a very large macro that caused 45 // MSVC Intellisense to crash. It was broken into two macros to work around 46 // this problem. Please avoid large recursive macros whenever possible. 47 #define RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \ 48 /* Property access */ \ 49 F(GetProperty, 2, 1) \ 50 F(KeyedGetProperty, 2, 1) \ 51 F(DeleteProperty, 3, 1) \ 52 F(HasLocalProperty, 2, 1) \ 53 F(HasProperty, 2, 1) \ 54 F(HasElement, 2, 1) \ 55 F(IsPropertyEnumerable, 2, 1) \ 56 F(GetPropertyNames, 1, 1) \ 57 F(GetPropertyNamesFast, 1, 1) \ 58 F(GetLocalPropertyNames, 1, 1) \ 59 F(GetLocalElementNames, 1, 1) \ 60 F(GetInterceptorInfo, 1, 1) \ 61 F(GetNamedInterceptorPropertyNames, 1, 1) \ 62 F(GetIndexedInterceptorElementNames, 1, 1) \ 63 F(GetArgumentsProperty, 1, 1) \ 64 F(ToFastProperties, 1, 1) \ 65 F(ToSlowProperties, 1, 1) \ 66 F(FinishArrayPrototypeSetup, 1, 1) \ 67 F(SpecialArrayFunctions, 1, 1) \ 68 F(GetDefaultReceiver, 1, 1) \ 69 \ 70 F(GetPrototype, 1, 1) \ 71 F(IsInPrototypeChain, 2, 1) \ 72 \ 73 F(GetOwnProperty, 2, 1) \ 74 \ 75 F(IsExtensible, 1, 1) \ 76 F(PreventExtensions, 1, 1)\ 77 \ 78 /* Utilities */ \ 79 F(CheckIsBootstrapping, 0, 1) \ 80 F(GetRootNaN, 0, 1) \ 81 F(Call, -1 /* >= 2 */, 1) \ 82 F(Apply, 5, 1) \ 83 F(GetFunctionDelegate, 1, 1) \ 84 F(GetConstructorDelegate, 1, 1) \ 85 F(NewArgumentsFast, 3, 1) \ 86 F(NewStrictArgumentsFast, 3, 1) \ 87 F(LazyCompile, 1, 1) \ 88 F(LazyRecompile, 1, 1) \ 89 F(NotifyDeoptimized, 1, 1) \ 90 F(NotifyOSR, 0, 1) \ 91 F(DeoptimizeFunction, 1, 1) \ 92 F(RunningInSimulator, 0, 1) \ 93 F(OptimizeFunctionOnNextCall, -1, 1) \ 94 F(GetOptimizationStatus, 1, 1) \ 95 F(GetOptimizationCount, 1, 1) \ 96 F(CompileForOnStackReplacement, 1, 1) \ 97 F(SetNewFunctionAttributes, 1, 1) \ 98 F(AllocateInNewSpace, 1, 1) \ 99 F(SetNativeFlag, 1, 1) \ 100 F(StoreArrayLiteralElement, 5, 1) \ 101 \ 102 /* Array join support */ \ 103 F(PushIfAbsent, 2, 1) \ 104 F(ArrayConcat, 1, 1) \ 105 \ 106 /* Conversions */ \ 107 F(ToBool, 1, 1) \ 108 F(Typeof, 1, 1) \ 109 \ 110 F(StringToNumber, 1, 1) \ 111 F(StringFromCharCodeArray, 1, 1) \ 112 F(StringParseInt, 2, 1) \ 113 F(StringParseFloat, 1, 1) \ 114 F(StringToLowerCase, 1, 1) \ 115 F(StringToUpperCase, 1, 1) \ 116 F(StringSplit, 3, 1) \ 117 F(CharFromCode, 1, 1) \ 118 F(URIEscape, 1, 1) \ 119 F(URIUnescape, 1, 1) \ 120 F(QuoteJSONString, 1, 1) \ 121 F(QuoteJSONStringComma, 1, 1) \ 122 F(QuoteJSONStringArray, 1, 1) \ 123 \ 124 F(NumberToString, 1, 1) \ 125 F(NumberToStringSkipCache, 1, 1) \ 126 F(NumberToInteger, 1, 1) \ 127 F(NumberToIntegerMapMinusZero, 1, 1) \ 128 F(NumberToJSUint32, 1, 1) \ 129 F(NumberToJSInt32, 1, 1) \ 130 F(NumberToSmi, 1, 1) \ 131 F(AllocateHeapNumber, 0, 1) \ 132 \ 133 /* Arithmetic operations */ \ 134 F(NumberAdd, 2, 1) \ 135 F(NumberSub, 2, 1) \ 136 F(NumberMul, 2, 1) \ 137 F(NumberDiv, 2, 1) \ 138 F(NumberMod, 2, 1) \ 139 F(NumberUnaryMinus, 1, 1) \ 140 F(NumberAlloc, 0, 1) \ 141 \ 142 F(StringAdd, 2, 1) \ 143 F(StringBuilderConcat, 3, 1) \ 144 F(StringBuilderJoin, 3, 1) \ 145 F(SparseJoinWithSeparator, 3, 1) \ 146 \ 147 /* Bit operations */ \ 148 F(NumberOr, 2, 1) \ 149 F(NumberAnd, 2, 1) \ 150 F(NumberXor, 2, 1) \ 151 F(NumberNot, 1, 1) \ 152 \ 153 F(NumberShl, 2, 1) \ 154 F(NumberShr, 2, 1) \ 155 F(NumberSar, 2, 1) \ 156 \ 157 /* Comparisons */ \ 158 F(NumberEquals, 2, 1) \ 159 F(StringEquals, 2, 1) \ 160 \ 161 F(NumberCompare, 3, 1) \ 162 F(SmiLexicographicCompare, 2, 1) \ 163 F(StringCompare, 2, 1) \ 164 \ 165 /* Math */ \ 166 F(Math_acos, 1, 1) \ 167 F(Math_asin, 1, 1) \ 168 F(Math_atan, 1, 1) \ 169 F(Math_atan2, 2, 1) \ 170 F(Math_ceil, 1, 1) \ 171 F(Math_cos, 1, 1) \ 172 F(Math_exp, 1, 1) \ 173 F(Math_floor, 1, 1) \ 174 F(Math_log, 1, 1) \ 175 F(Math_pow, 2, 1) \ 176 F(Math_pow_cfunction, 2, 1) \ 177 F(RoundNumber, 1, 1) \ 178 F(Math_sin, 1, 1) \ 179 F(Math_sqrt, 1, 1) \ 180 F(Math_tan, 1, 1) \ 181 \ 182 /* Regular expressions */ \ 183 F(RegExpCompile, 3, 1) \ 184 F(RegExpExec, 4, 1) \ 185 F(RegExpExecMultiple, 4, 1) \ 186 F(RegExpInitializeObject, 5, 1) \ 187 F(RegExpConstructResult, 3, 1) \ 188 \ 189 /* JSON */ \ 190 F(ParseJson, 1, 1) \ 191 \ 192 /* Strings */ \ 193 F(StringCharCodeAt, 2, 1) \ 194 F(StringIndexOf, 3, 1) \ 195 F(StringLastIndexOf, 3, 1) \ 196 F(StringLocaleCompare, 2, 1) \ 197 F(SubString, 3, 1) \ 198 F(StringReplaceRegExpWithString, 4, 1) \ 199 F(StringReplaceOneCharWithString, 3, 1) \ 200 F(StringMatch, 3, 1) \ 201 F(StringTrim, 3, 1) \ 202 F(StringToArray, 2, 1) \ 203 F(NewStringWrapper, 1, 1) \ 204 \ 205 /* Numbers */ \ 206 F(NumberToRadixString, 2, 1) \ 207 F(NumberToFixed, 2, 1) \ 208 F(NumberToExponential, 2, 1) \ 209 F(NumberToPrecision, 2, 1) 210 211 #define RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \ 212 /* Reflection */ \ 213 F(FunctionSetInstanceClassName, 2, 1) \ 214 F(FunctionSetLength, 2, 1) \ 215 F(FunctionSetPrototype, 2, 1) \ 216 F(FunctionSetReadOnlyPrototype, 1, 1) \ 217 F(FunctionGetName, 1, 1) \ 218 F(FunctionSetName, 2, 1) \ 219 F(FunctionNameShouldPrintAsAnonymous, 1, 1) \ 220 F(FunctionMarkNameShouldPrintAsAnonymous, 1, 1) \ 221 F(FunctionBindArguments, 4, 1) \ 222 F(BoundFunctionGetBindings, 1, 1) \ 223 F(FunctionRemovePrototype, 1, 1) \ 224 F(FunctionGetSourceCode, 1, 1) \ 225 F(FunctionGetScript, 1, 1) \ 226 F(FunctionGetScriptSourcePosition, 1, 1) \ 227 F(FunctionGetPositionForOffset, 2, 1) \ 228 F(FunctionIsAPIFunction, 1, 1) \ 229 F(FunctionIsBuiltin, 1, 1) \ 230 F(GetScript, 1, 1) \ 231 F(CollectStackTrace, 3, 1) \ 232 F(GetV8Version, 0, 1) \ 233 \ 234 F(ClassOf, 1, 1) \ 235 F(SetCode, 2, 1) \ 236 F(SetExpectedNumberOfProperties, 2, 1) \ 237 \ 238 F(CreateApiFunction, 1, 1) \ 239 F(IsTemplate, 1, 1) \ 240 F(GetTemplateField, 2, 1) \ 241 F(DisableAccessChecks, 1, 1) \ 242 F(EnableAccessChecks, 1, 1) \ 243 \ 244 /* Dates */ \ 245 F(DateCurrentTime, 0, 1) \ 246 F(DateParseString, 2, 1) \ 247 F(DateLocalTimezone, 1, 1) \ 248 F(DateToUTC, 1, 1) \ 249 F(DateMakeDay, 2, 1) \ 250 F(DateSetValue, 3, 1) \ 251 \ 252 /* Numbers */ \ 253 \ 254 /* Globals */ \ 255 F(CompileString, 1, 1) \ 256 F(GlobalPrint, 1, 1) \ 257 \ 258 /* Eval */ \ 259 F(GlobalReceiver, 1, 1) \ 260 F(ResolvePossiblyDirectEval, 5, 2) \ 261 \ 262 F(SetProperty, -1 /* 4 or 5 */, 1) \ 263 F(DefineOrRedefineDataProperty, 4, 1) \ 264 F(DefineOrRedefineAccessorProperty, 5, 1) \ 265 F(IgnoreAttributesAndSetProperty, -1 /* 3 or 4 */, 1) \ 266 \ 267 /* Arrays */ \ 268 F(RemoveArrayHoles, 2, 1) \ 269 F(GetArrayKeys, 2, 1) \ 270 F(MoveArrayContents, 2, 1) \ 271 F(EstimateNumberOfElements, 1, 1) \ 272 \ 273 /* Getters and Setters */ \ 274 F(LookupAccessor, 3, 1) \ 275 \ 276 /* Literals */ \ 277 F(MaterializeRegExpLiteral, 4, 1)\ 278 F(CreateObjectLiteral, 4, 1) \ 279 F(CreateObjectLiteralShallow, 4, 1) \ 280 F(CreateArrayLiteral, 3, 1) \ 281 F(CreateArrayLiteralShallow, 3, 1) \ 282 \ 283 /* Harmony proxies */ \ 284 F(CreateJSProxy, 2, 1) \ 285 F(CreateJSFunctionProxy, 4, 1) \ 286 F(IsJSProxy, 1, 1) \ 287 F(IsJSFunctionProxy, 1, 1) \ 288 F(GetHandler, 1, 1) \ 289 F(GetCallTrap, 1, 1) \ 290 F(GetConstructTrap, 1, 1) \ 291 F(Fix, 1, 1) \ 292 \ 293 /* Harmony sets */ \ 294 F(SetInitialize, 1, 1) \ 295 F(SetAdd, 2, 1) \ 296 F(SetHas, 2, 1) \ 297 F(SetDelete, 2, 1) \ 298 \ 299 /* Harmony maps */ \ 300 F(MapInitialize, 1, 1) \ 301 F(MapGet, 2, 1) \ 302 F(MapSet, 3, 1) \ 303 \ 304 /* Harmony weakmaps */ \ 305 F(WeakMapInitialize, 1, 1) \ 306 F(WeakMapGet, 2, 1) \ 307 F(WeakMapSet, 3, 1) \ 308 \ 309 /* Statements */ \ 310 F(NewClosure, 3, 1) \ 311 F(NewObject, 1, 1) \ 312 F(NewObjectFromBound, 1, 1) \ 313 F(FinalizeInstanceSize, 1, 1) \ 314 F(Throw, 1, 1) \ 315 F(ReThrow, 1, 1) \ 316 F(ThrowReferenceError, 1, 1) \ 317 F(StackGuard, 0, 1) \ 318 F(Interrupt, 0, 1) \ 319 F(PromoteScheduledException, 0, 1) \ 320 \ 321 /* Contexts */ \ 322 F(NewFunctionContext, 1, 1) \ 323 F(PushWithContext, 2, 1) \ 324 F(PushCatchContext, 3, 1) \ 325 F(PushBlockContext, 2, 1) \ 326 F(DeleteContextSlot, 2, 1) \ 327 F(LoadContextSlot, 2, 2) \ 328 F(LoadContextSlotNoReferenceError, 2, 2) \ 329 F(StoreContextSlot, 4, 1) \ 330 \ 331 /* Declarations and initialization */ \ 332 F(DeclareGlobals, 3, 1) \ 333 F(DeclareContextSlot, 4, 1) \ 334 F(InitializeVarGlobal, -1 /* 2 or 3 */, 1) \ 335 F(InitializeConstGlobal, 2, 1) \ 336 F(InitializeConstContextSlot, 3, 1) \ 337 F(OptimizeObjectForAddingMultipleProperties, 2, 1) \ 338 \ 339 /* Debugging */ \ 340 F(DebugPrint, 1, 1) \ 341 F(DebugTrace, 0, 1) \ 342 F(TraceEnter, 0, 1) \ 343 F(TraceExit, 1, 1) \ 344 F(Abort, 2, 1) \ 345 /* Logging */ \ 346 F(Log, 2, 1) \ 347 /* ES5 */ \ 348 F(LocalKeys, 1, 1) \ 349 /* Cache suport */ \ 350 F(GetFromCache, 2, 1) \ 351 \ 352 /* Message objects */ \ 353 F(NewMessageObject, 2, 1) \ 354 F(MessageGetType, 1, 1) \ 355 F(MessageGetArguments, 1, 1) \ 356 F(MessageGetStartPosition, 1, 1) \ 357 F(MessageGetScript, 1, 1) \ 358 \ 359 /* Pseudo functions - handled as macros by parser */ \ 360 F(IS_VAR, 1, 1) \ 361 \ 362 /* expose boolean functions from objects-inl.h */ \ 363 F(HasFastSmiOnlyElements, 1, 1) \ 364 F(HasFastElements, 1, 1) \ 365 F(HasFastDoubleElements, 1, 1) \ 366 F(HasDictionaryElements, 1, 1) \ 367 F(HasExternalPixelElements, 1, 1) \ 368 F(HasExternalArrayElements, 1, 1) \ 369 F(HasExternalByteElements, 1, 1) \ 370 F(HasExternalUnsignedByteElements, 1, 1) \ 371 F(HasExternalShortElements, 1, 1) \ 372 F(HasExternalUnsignedShortElements, 1, 1) \ 373 F(HasExternalIntElements, 1, 1) \ 374 F(HasExternalUnsignedIntElements, 1, 1) \ 375 F(HasExternalFloatElements, 1, 1) \ 376 F(HasExternalDoubleElements, 1, 1) \ 377 F(TransitionElementsSmiToDouble, 1, 1) \ 378 F(TransitionElementsDoubleToObject, 1, 1) \ 379 F(HaveSameMap, 2, 1) \ 380 /* profiler */ \ 381 F(ProfilerResume, 0, 1) \ 382 F(ProfilerPause, 0, 1) 383 384 385 #ifdef ENABLE_DEBUGGER_SUPPORT 386 #define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) \ 387 /* Debugger support*/ \ 388 F(DebugBreak, 0, 1) \ 389 F(SetDebugEventListener, 2, 1) \ 390 F(Break, 0, 1) \ 391 F(DebugGetPropertyDetails, 2, 1) \ 392 F(DebugGetProperty, 2, 1) \ 393 F(DebugPropertyTypeFromDetails, 1, 1) \ 394 F(DebugPropertyAttributesFromDetails, 1, 1) \ 395 F(DebugPropertyIndexFromDetails, 1, 1) \ 396 F(DebugNamedInterceptorPropertyValue, 2, 1) \ 397 F(DebugIndexedInterceptorElementValue, 2, 1) \ 398 F(CheckExecutionState, 1, 1) \ 399 F(GetFrameCount, 1, 1) \ 400 F(GetFrameDetails, 2, 1) \ 401 F(GetScopeCount, 2, 1) \ 402 F(GetScopeDetails, 4, 1) \ 403 F(DebugPrintScopes, 0, 1) \ 404 F(GetThreadCount, 1, 1) \ 405 F(GetThreadDetails, 2, 1) \ 406 F(SetDisableBreak, 1, 1) \ 407 F(GetBreakLocations, 1, 1) \ 408 F(SetFunctionBreakPoint, 3, 1) \ 409 F(SetScriptBreakPoint, 3, 1) \ 410 F(ClearBreakPoint, 1, 1) \ 411 F(ChangeBreakOnException, 2, 1) \ 412 F(IsBreakOnException, 1, 1) \ 413 F(PrepareStep, 3, 1) \ 414 F(ClearStepping, 0, 1) \ 415 F(DebugEvaluate, 6, 1) \ 416 F(DebugEvaluateGlobal, 4, 1) \ 417 F(DebugGetLoadedScripts, 0, 1) \ 418 F(DebugReferencedBy, 3, 1) \ 419 F(DebugConstructedBy, 2, 1) \ 420 F(DebugGetPrototype, 1, 1) \ 421 F(DebugSetScriptSource, 2, 1) \ 422 F(SystemBreak, 0, 1) \ 423 F(DebugDisassembleFunction, 1, 1) \ 424 F(DebugDisassembleConstructor, 1, 1) \ 425 F(FunctionGetInferredName, 1, 1) \ 426 F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \ 427 F(LiveEditGatherCompileInfo, 2, 1) \ 428 F(LiveEditReplaceScript, 3, 1) \ 429 F(LiveEditReplaceFunctionCode, 2, 1) \ 430 F(LiveEditFunctionSourceUpdated, 1, 1) \ 431 F(LiveEditFunctionSetScript, 2, 1) \ 432 F(LiveEditReplaceRefToNestedFunction, 3, 1) \ 433 F(LiveEditPatchFunctionPositions, 2, 1) \ 434 F(LiveEditCheckAndDropActivations, 2, 1) \ 435 F(LiveEditCompareStrings, 2, 1) \ 436 F(GetFunctionCodePositionFromSource, 2, 1) \ 437 F(ExecuteInDebugContext, 2, 1) \ 438 \ 439 F(SetFlags, 1, 1) \ 440 F(CollectGarbage, 1, 1) \ 441 F(GetHeapUsage, 0, 1) \ 442 \ 443 /* LiveObjectList support*/ \ 444 F(HasLOLEnabled, 0, 1) \ 445 F(CaptureLOL, 0, 1) \ 446 F(DeleteLOL, 1, 1) \ 447 F(DumpLOL, 5, 1) \ 448 F(GetLOLObj, 1, 1) \ 449 F(GetLOLObjId, 1, 1) \ 450 F(GetLOLObjRetainers, 6, 1) \ 451 F(GetLOLPath, 3, 1) \ 452 F(InfoLOL, 2, 1) \ 453 F(PrintLOLObj, 1, 1) \ 454 F(ResetLOL, 0, 1) \ 455 F(SummarizeLOL, 3, 1) 456 457 #else 458 #define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) 459 #endif 460 461 #ifdef DEBUG 462 #define RUNTIME_FUNCTION_LIST_DEBUG(F) \ 463 /* Testing */ \ 464 F(ListNatives, 0, 1) 465 #else 466 #define RUNTIME_FUNCTION_LIST_DEBUG(F) 467 #endif 468 469 // ---------------------------------------------------------------------------- 470 // RUNTIME_FUNCTION_LIST defines all runtime functions accessed 471 // either directly by id (via the code generator), or indirectly 472 // via a native call by name (from within JS code). 473 474 #define RUNTIME_FUNCTION_LIST(F) \ 475 RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \ 476 RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \ 477 RUNTIME_FUNCTION_LIST_DEBUG(F) \ 478 RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) 479 480 // ---------------------------------------------------------------------------- 481 // INLINE_FUNCTION_LIST defines all inlined functions accessed 482 // with a native call of the form %_name from within JS code. 483 // Entries have the form F(name, number of arguments, number of return values). 484 #define INLINE_FUNCTION_LIST(F) \ 485 F(IsSmi, 1, 1) \ 486 F(IsNonNegativeSmi, 1, 1) \ 487 F(IsArray, 1, 1) \ 488 F(IsRegExp, 1, 1) \ 489 F(IsConstructCall, 0, 1) \ 490 F(CallFunction, -1 /* receiver + n args + function */, 1) \ 491 F(ArgumentsLength, 0, 1) \ 492 F(Arguments, 1, 1) \ 493 F(ValueOf, 1, 1) \ 494 F(SetValueOf, 2, 1) \ 495 F(DateField, 2 /* date object, field index */, 1) \ 496 F(StringCharFromCode, 1, 1) \ 497 F(StringCharAt, 2, 1) \ 498 F(ObjectEquals, 2, 1) \ 499 F(RandomHeapNumber, 0, 1) \ 500 F(IsObject, 1, 1) \ 501 F(IsFunction, 1, 1) \ 502 F(IsUndetectableObject, 1, 1) \ 503 F(IsSpecObject, 1, 1) \ 504 F(IsStringWrapperSafeForDefaultValueOf, 1, 1) \ 505 F(MathPow, 2, 1) \ 506 F(MathSin, 1, 1) \ 507 F(MathCos, 1, 1) \ 508 F(MathTan, 1, 1) \ 509 F(MathSqrt, 1, 1) \ 510 F(MathLog, 1, 1) \ 511 F(IsRegExpEquivalent, 2, 1) \ 512 F(HasCachedArrayIndex, 1, 1) \ 513 F(GetCachedArrayIndex, 1, 1) \ 514 F(FastAsciiArrayJoin, 2, 1) 515 516 517 // ---------------------------------------------------------------------------- 518 // INLINE_AND_RUNTIME_FUNCTION_LIST defines all inlined functions accessed 519 // with a native call of the form %_name from within JS code that also have 520 // a corresponding runtime function, that is called for slow cases. 521 // Entries have the form F(name, number of arguments, number of return values). 522 #define INLINE_RUNTIME_FUNCTION_LIST(F) \ 523 F(ClassOf, 1, 1) \ 524 F(StringCharCodeAt, 2, 1) \ 525 F(Log, 3, 1) \ 526 F(StringAdd, 2, 1) \ 527 F(SubString, 3, 1) \ 528 F(StringCompare, 2, 1) \ 529 F(RegExpExec, 4, 1) \ 530 F(RegExpConstructResult, 3, 1) \ 531 F(GetFromCache, 2, 1) \ 532 F(NumberToString, 1, 1) 533 534 535 //--------------------------------------------------------------------------- 536 // Runtime provides access to all C++ runtime functions. 537 538 class RuntimeState { 539 public: string_input_buffer()540 StaticResource<StringInputBuffer>* string_input_buffer() { 541 return &string_input_buffer_; 542 } to_upper_mapping()543 unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() { 544 return &to_upper_mapping_; 545 } to_lower_mapping()546 unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() { 547 return &to_lower_mapping_; 548 } string_input_buffer_compare_bufx()549 StringInputBuffer* string_input_buffer_compare_bufx() { 550 return &string_input_buffer_compare_bufx_; 551 } string_input_buffer_compare_bufy()552 StringInputBuffer* string_input_buffer_compare_bufy() { 553 return &string_input_buffer_compare_bufy_; 554 } string_locale_compare_buf1()555 StringInputBuffer* string_locale_compare_buf1() { 556 return &string_locale_compare_buf1_; 557 } string_locale_compare_buf2()558 StringInputBuffer* string_locale_compare_buf2() { 559 return &string_locale_compare_buf2_; 560 } 561 562 private: RuntimeState()563 RuntimeState() {} 564 // Non-reentrant string buffer for efficient general use in the runtime. 565 StaticResource<StringInputBuffer> string_input_buffer_; 566 unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_; 567 unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_; 568 StringInputBuffer string_input_buffer_compare_bufx_; 569 StringInputBuffer string_input_buffer_compare_bufy_; 570 StringInputBuffer string_locale_compare_buf1_; 571 StringInputBuffer string_locale_compare_buf2_; 572 573 friend class Isolate; 574 friend class Runtime; 575 576 DISALLOW_COPY_AND_ASSIGN(RuntimeState); 577 }; 578 579 580 class Runtime : public AllStatic { 581 public: 582 enum FunctionId { 583 #define F(name, nargs, ressize) k##name, 584 RUNTIME_FUNCTION_LIST(F) 585 #undef F 586 #define F(name, nargs, ressize) kInline##name, 587 INLINE_FUNCTION_LIST(F) 588 INLINE_RUNTIME_FUNCTION_LIST(F) 589 #undef F 590 kNumFunctions, 591 kFirstInlineFunction = kInlineIsSmi 592 }; 593 594 enum IntrinsicType { 595 RUNTIME, 596 INLINE 597 }; 598 599 // Intrinsic function descriptor. 600 struct Function { 601 FunctionId function_id; 602 IntrinsicType intrinsic_type; 603 // The JS name of the function. 604 const char* name; 605 606 // The C++ (native) entry point. NULL if the function is inlined. 607 byte* entry; 608 609 // The number of arguments expected. nargs is -1 if the function takes 610 // a variable number of arguments. 611 int nargs; 612 // Size of result. Most functions return a single pointer, size 1. 613 int result_size; 614 }; 615 616 static const int kNotFound = -1; 617 618 // Add symbols for all the intrinsic function names to a StringDictionary. 619 // Returns failure if an allocation fails. In this case, it must be 620 // retried with a new, empty StringDictionary, not with the same one. 621 // Alternatively, heap initialization can be completely restarted. 622 MUST_USE_RESULT static MaybeObject* InitializeIntrinsicFunctionNames( 623 Heap* heap, Object* dictionary); 624 625 // Get the intrinsic function with the given name, which must be a symbol. 626 static const Function* FunctionForSymbol(Handle<String> name); 627 628 // Get the intrinsic function with the given FunctionId. 629 static const Function* FunctionForId(FunctionId id); 630 631 static Handle<String> StringReplaceOneCharWithString(Isolate* isolate, 632 Handle<String> subject, 633 Handle<String> search, 634 Handle<String> replace, 635 bool* found, 636 int recursion_limit); 637 638 // General-purpose helper functions for runtime system. 639 static int StringMatch(Isolate* isolate, 640 Handle<String> sub, 641 Handle<String> pat, 642 int index); 643 644 static bool IsUpperCaseChar(RuntimeState* runtime_state, uint16_t ch); 645 646 // TODO(1240886): Some of the following methods are *not* handle safe, but 647 // accept handle arguments. This seems fragile. 648 649 // Support getting the characters in a string using [] notation as 650 // in Firefox/SpiderMonkey, Safari and Opera. 651 MUST_USE_RESULT static MaybeObject* GetElementOrCharAt(Isolate* isolate, 652 Handle<Object> object, 653 uint32_t index); 654 655 MUST_USE_RESULT static MaybeObject* SetObjectProperty( 656 Isolate* isolate, 657 Handle<Object> object, 658 Handle<Object> key, 659 Handle<Object> value, 660 PropertyAttributes attr, 661 StrictModeFlag strict_mode); 662 663 MUST_USE_RESULT static MaybeObject* ForceSetObjectProperty( 664 Isolate* isolate, 665 Handle<JSObject> object, 666 Handle<Object> key, 667 Handle<Object> value, 668 PropertyAttributes attr); 669 670 MUST_USE_RESULT static MaybeObject* ForceDeleteObjectProperty( 671 Isolate* isolate, 672 Handle<JSReceiver> object, 673 Handle<Object> key); 674 675 MUST_USE_RESULT static MaybeObject* GetObjectProperty( 676 Isolate* isolate, 677 Handle<Object> object, 678 Handle<Object> key); 679 680 // This function is used in FunctionNameUsing* tests. 681 static Object* FindSharedFunctionInfoInScript(Isolate* isolate, 682 Handle<Script> script, 683 int position); 684 685 // Helper functions used stubs. 686 static void PerformGC(Object* result); 687 688 // Used in runtime.cc and hydrogen's VisitArrayLiteral. 689 static Handle<Object> CreateArrayLiteralBoilerplate( 690 Isolate* isolate, 691 Handle<FixedArray> literals, 692 Handle<FixedArray> elements); 693 }; 694 695 696 //--------------------------------------------------------------------------- 697 // Constants used by interface to runtime functions. 698 699 class DeclareGlobalsEvalFlag: public BitField<bool, 0, 1> {}; 700 class DeclareGlobalsNativeFlag: public BitField<bool, 1, 1> {}; 701 class DeclareGlobalsLanguageMode: public BitField<LanguageMode, 2, 2> {}; 702 703 } } // namespace v8::internal 704 705 #endif // V8_RUNTIME_H_ 706