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da0a8e33f0
* Add tests for early errors in functions * Improve tests for class accessors Use the `propertyHelper.js` utility in order to functionally test the property descriptors of class methods. * Remove redundant tests The semantics of an IdentifierReference as a PropertyDefinition within an object initializer are exhaustively tested by the files in this directory whose name match the pattern `prop-def-id-*.js`. Delete the redundant tests in favor of the more descriptively-named and more exhaustive alternatives. * Rename tests * Update test names to be more descriptive * Add tests for property descriptors of accessors * Add tests for runtime error during method dfn * Add test for observable iteration
48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
// Copyright (C) 2016 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-runtime-semantics-classdefinitionevaluation
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es6id: 14.5.14
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description: >
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Observable iteration of arguments during execution of "inferred" constructor
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info: |
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[...]
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10. If constructor is empty, then
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a. If ClassHeritageopt is present and protoParent is not null, then
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i. Let constructor be the result of parsing the source text
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constructor(... args){ super (...args);}
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using the syntactic grammar with the goal symbol MethodDefinition[~Yield].
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features: [Symbol.iterator]
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---*/
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var otherIterator = ['fifth', 'sixth', 'seventh'][Symbol.iterator]();
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var spread, parentArgs;
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function Parent() {
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parentArgs = arguments;
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}
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class C extends Parent {}
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Array.prototype[Symbol.iterator] = function() {
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spread = this;
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return otherIterator;
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};
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new C('first', 'second', 'third', 'fourth');
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assert.sameValue(Object.getPrototypeOf(spread), Array.prototype);
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assert.sameValue(spread.length, 4);
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assert.sameValue(spread[0], 'first');
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assert.sameValue(spread[1], 'second');
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assert.sameValue(spread[2], 'third');
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assert.sameValue(spread[3], 'fourth');
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assert.sameValue(
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typeof parentArgs, 'object', 'parent arguments object'
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);
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assert.sameValue(parentArgs.length, 3);
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assert.sameValue(parentArgs[0], 'fifth');
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assert.sameValue(parentArgs[1], 'sixth');
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assert.sameValue(parentArgs[2], 'seventh');
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