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>
32 lines
885 B
JavaScript
32 lines
885 B
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-assignment-operators
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description: Assignment Operator evaluates the value prior validating a MemberExpression's reference (null)
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info: |
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# 13.15.2 Runtime Semantics: Evaluation
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AssignmentExpression : LeftHandSideExpression = AssignmentExpression
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1. If LeftHandSideExpression is neither an ObjectLiteral nor an ArrayLiteral,
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then
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a. Let lref be the result of evaluating LeftHandSideExpression.
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[...]
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e. Perform ? PutValue(lref, rval).
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# 6.2.4.5 PutValue ( V, W )
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[...]
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5. If IsPropertyReference(V) is true, then
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a. Let baseObj be ? ToObject(V.[[Base]]).
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---*/
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var count = 0;
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var base = null;
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assert.throws(TypeError, function() {
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base.prop = count += 1;
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});
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assert.sameValue(count, 1);
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