https://github.com/benjamingr/v8-natives-api

https://github.com/benjamingr/v8-natives-api

Last synced: 10 days ago
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• Host: GitHub
• URL: https://github.com/benjamingr/v8-natives-api
• Owner: benjamingr
• License: other
• Created: 2020-11-21T18:41:19.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2020-11-21T18:48:06.000Z (almost 4 years ago)
• Last Synced: 2024-10-19T05:02:20.457Z (19 days ago)
• Language: JavaScript
• Size: 21.5 KB
• Stars: 5
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# v8-natives-api

Exposes natives functions accessible with the `--allow-natives-syntax` flag as a Node API:

```js

const api = require('v8-natives-syntax');

api.HasHoleyElements([1,,,3]); // true

api.OptimizeFunctionOnNextCall(someFunctionToOptimize);

```

### Warning

The API here may break at any moment should V8 choose to change the internal functions.

## Current function list

```js

const methodNames = [

  'Abort',

  'AbortJS',

  'AbortCSAAssert',

  'ArraySpeciesProtector',

  'ClearFunctionFeedback',

  'ClearMegamorphicStubCache',

  'CompleteInobjectSlackTracking',

  'ConstructConsString',

  'ConstructDouble',

  'ConstructSlicedString',

  'DebugPrint',

  'DebugPrintPtr',

  'DebugTrace',

  'DebugTrackRetainingPath',

  'DeoptimizeFunction',

  'DeserializeWasmModule',

  'DisallowCodegenFromStrings',

  'DisallowWasmCodegen',

  'DisassembleFunction',

  'DynamicMapChecksEnabled',

  'EnableCodeLoggingForTesting',

  'EnsureFeedbackVectorForFunction',

  'FreezeWasmLazyCompilation',

  'GetCallable',

  'GetInitializerFunction',

  'GetOptimizationStatus',

  'GetUndetectable',

  'GetWasmExceptionId',

  'GetWasmExceptionValues',

  'GetWasmRecoveredTrapCount',

  'GlobalPrint',

  'HasDictionaryElements',

  'HasDoubleElements',

  'HasElementsInALargeObjectSpace',

  'HasFastElements',

  'HasFastProperties',

  'HasFixedBigInt64Elements',

  'HasFixedBigUint64Elements',

  'HasFixedFloat32Elements',

  'HasFixedFloat64Elements',

  'HasFixedInt16Elements',

  'HasFixedInt32Elements',

  'HasFixedInt8Elements',

  'HasFixedUint16Elements',

  'HasFixedUint32Elements',

  'HasFixedUint8ClampedElements',

  'HasFixedUint8Elements',

  'HasHoleyElements',

  'HasObjectElements',

  'HasPackedElements',

  'HasSloppyArgumentsElements',

  'HasSmiElements',

  'HasSmiOrObjectElements',

  'HaveSameMap',

  'HeapObjectVerify',

  'ICsAreEnabled',

  'InYoungGeneration',

  'IsAsmWasmCode',

  'IsBeingInterpreted',

  'IsConcurrentRecompilationSupported',

  'IsLiftoffFunction',

  'IsThreadInWasm',

  'IsWasmCode',

  'IsWasmTrapHandlerEnabled',

  'RegexpHasBytecode',

  'RegexpHasNativeCode',

  'RegexpTypeTag',

  'MapIteratorProtector',

  'NeverOptimizeFunction',

  'NotifyContextDisposed',

  'OptimizeFunctionOnNextCall',

  'OptimizeOsr',

  'NewRegExpWithBacktrackLimit',

  'PrepareFunctionForOptimization',

  'PrintWithNameForAssert',

  'RunningInSimulator',

  'RuntimeEvaluateREPL',

  'SerializeDeserializeNow',

  'SerializeWasmModule',

  'SetAllocationTimeout',

  'SetForceSlowPath',

  'SetIteratorProtector',

  'SetWasmCompileControls',

  'SetWasmInstantiateControls',

  'SetWasmThreadsEnabled',

  'SimulateNewspaceFull',

  'StringIteratorProtector',

  'SystemBreak',

  'TraceEnter',

  'TraceExit',

  'TurbofanStaticAssert',

  'UnblockConcurrentRecompilation',

  'WasmGetNumberOfInstances',

  'WasmNumCodeSpaces',

  'WasmTierDownModule',

  'WasmTierUpFunction',

  'WasmTierUpModule',

  'WasmTraceEnter',

  'WasmTraceExit',

  'WasmTraceMemory',

  'DeoptimizeNow',

  // Strings

  'FlattenString',

  'GetSubstitution',

  'InternalizeString',

  'StringAdd',

  'StringBuilderConcat',

  'StringCharCodeAt',

  'StringEqual',

  'StringEscapeQuotes',

  'StringGreaterThan',

  'StringGreaterThanOrEqual',

  'StringIncludes',

  'StringIndexOf',

  'StringIndexOfUnchecked',

  'StringLastIndexOf',

  'StringLessThan',

  'StringLessThanOrEqual',

  'StringMaxLength',

  'StringReplaceOneCharWithString',

  'StringCompareSequence',

  'StringSubstring',

  'StringToArray',

  'StringTrim',

];

```