2240f6c518
Vendor 500 new real Test262 tests (total 550), relax curation filters for now-supported features (arrow functions, classes, destructuring, spread/rest, for-in/of, template literals, let/const, instanceof), add automated triage script, and track pass rate as a CI metric. 190/550 pass (34.5%). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
30 lines
1.2 KiB
JavaScript
30 lines
1.2 KiB
JavaScript
// Copyright (C) 2021 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-arrow-function-definitions-runtime-semantics-evaluation
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description: The [[Extensible]] slot of arrow functions
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info: |
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15.3.4 Runtime Semantics: InstantiateArrowFunctionExpression
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[...]
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4. Let closure be OrdinaryFunctionCreate(%Function.prototype%, sourceText,
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ArrowParameters, ConciseBody, lexical-this, scope).
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10.2.3 OrdinaryFunctionCreate ( functionPrototype, sourceText, ParameterList, Body, thisMode, Scope )
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[...]
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3. Let F be ! OrdinaryObjectCreate(functionPrototype, internalSlotsList).
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10.1.12 OrdinaryObjectCreate ( proto [ , additionalInternalSlotsList ] )
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1. Let internalSlotsList be « [[Prototype]], [[Extensible]] ».
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2. If additionalInternalSlotsList is present, append each of its elements
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to internalSlotsList.
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3. Let O be ! MakeBasicObject(internalSlotsList).
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7.3.1 MakeBasicObject ( internalSlotsList )
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[...]
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6. If internalSlotsList contains [[Extensible]], set obj.[[Extensible]] to
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true.
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---*/
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assert(Object.isExtensible(() => {}));
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