43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
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// Copyright 2014 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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// Flags: --harmony-generators
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function assertIteratorResult(value, done, result) {
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assertEquals({value: value, done: done}, result);
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}
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function test(f) {
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var cdesc = Object.getOwnPropertyDescriptor(f, "caller");
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var adesc = Object.getOwnPropertyDescriptor(f, "arguments");
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assertFalse(cdesc.enumerable);
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assertFalse(cdesc.configurable);
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assertFalse(adesc.enumerable);
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assertFalse(adesc.configurable);
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assertSame(cdesc.get, cdesc.set);
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assertSame(cdesc.get, adesc.get);
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assertSame(cdesc.get, adesc.set);
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assertTrue(cdesc.get instanceof Function);
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assertEquals(0, cdesc.get.length);
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assertThrows(cdesc.get, TypeError);
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assertThrows(function() { return f.caller; }, TypeError);
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assertThrows(function() { f.caller = 42; }, TypeError);
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assertThrows(function() { return f.arguments; }, TypeError);
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assertThrows(function() { f.arguments = 42; }, TypeError);
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}
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function *sloppy() { test(sloppy); }
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function *strict() { "use strict"; test(strict); }
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test(sloppy);
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test(strict);
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assertIteratorResult(undefined, true, sloppy().next());
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assertIteratorResult(undefined, true, strict().next());
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