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deps/v8/test/mjsunit/harmony/iterator-constructor.js
30 строк
812 B
Michaël Zasso
deps: update V8 to 13.6.233.8
02 май 2025, 16:06
Не верифицирован
02 май 2025, 16:06
918fe04
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// Copyright 2023 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // assertEquals('function', typeof Iterator); assertEquals(0, Iterator.length); assertEquals('Iterator', Iterator.name); // Abstract base class, can't be instantiated. assertThrows(() => new Iterator(), TypeError); // Can be used as superclass though. class MyIterator extends Iterator { next() { return {value: 42, done: false}; } } const myIter = new MyIterator(); assertTrue(myIter instanceof MyIterator); function* gen() { yield 42; } const genIter = gen(); assertTrue(genIter instanceof Iterator); assertSame( Object.getPrototypeOf( Object.getPrototypeOf(Object.getPrototypeOf(genIter))), Iterator.prototype);