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Add function property support to the JS engine (fn.prop = val, fn.prop, fn.method()) enabling the Test262 assert harness pattern. Implement Test262 execution mode in the JS262 harness with simplified sta.js/assert.js shims. Vendor 50 real tc39/test262 tests via curation script (35 pass, 15 known_fail). Engine changes: - JsObject: add Debug impl and has() method for presence checks - JsFunction: add properties field (Rc-shared JsObject) - Interpreter: handle function property get/set/call/compound-assign/update with user-property-over-builtin precedence Harness changes: - Add Test262 variant to Js262Mode with relaxed manifest validation - Implement run_test262_case with harness prepending and error classification - Create sta.js (Test262Error shim) and assert.js (assert.sameValue etc.) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
20 lines
437 B
JavaScript
20 lines
437 B
JavaScript
// Copyright (C) 2011 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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es6id: 13.1
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description: >
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catch parameter shadowing function parameter name
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---*/
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function fn(a) {
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try {
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throw 'stuff1';
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} catch (a) {
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assert.sameValue(a, 'stuff1');
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// catch parameter shadowing function parameter name
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a = 2;
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assert.sameValue(a, 2);
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}
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}
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fn(1);
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