33 lines
1.2 KiB
JavaScript
33 lines
1.2 KiB
JavaScript
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// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// MODULE
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// Flags: --harmony-import-meta
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import foreign, { url as otherUrl } from './modules-skip-export-import-meta.js';
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assertEquals("object", typeof import.meta);
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assertEquals(null, Object.getPrototypeOf(import.meta));
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assertSame(import.meta, import.meta);
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// This property isn't part of the spec itself but is mentioned as an example
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assertMatches(/\/modules-import-meta\.js$/, import.meta.url);
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import.meta.x = 42;
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assertEquals(42, import.meta.x);
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Object.assign(import.meta, { foo: "bar" })
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assertEquals("bar", import.meta.foo);
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// PerformEval parses its argument for the goal symbol Script. So the following
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// should fail just as it does for every other Script context.
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//
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// See:
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// https://github.com/tc39/proposal-import-meta/issues/7#issuecomment-329363083
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assertThrows(() => eval('import.meta'), SyntaxError);
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assertThrows(() => new Function('return import.meta;'), SyntaxError);
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assertNotEquals(foreign, import.meta);
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assertMatches(/\/modules-skip-export-import-meta\.js$/, foreign.url);
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assertEquals(foreign.url, otherUrl);
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