34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
// WeakMap surfaces
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var desc = Object.getOwnPropertyDescriptor(this, "WeakMap");
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assertEq(desc.enumerable, false);
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assertEq(desc.configurable, true);
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assertEq(desc.writable, true);
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assertEq(typeof WeakMap, 'function');
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assertEq(Object.keys(WeakMap).length, 0);
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assertEq(WeakMap.length, 0);
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assertEq(WeakMap.name, "WeakMap");
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assertEq(Object.getPrototypeOf(WeakMap.prototype), Object.prototype);
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assertEq(Object.prototype.toString.call(WeakMap.prototype), "[object WeakMap]");
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assertEq(Object.prototype.toString.call(new WeakMap()), "[object WeakMap]");
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assertEq(Object.keys(WeakMap.prototype).join(), "");
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assertEq(WeakMap.prototype.constructor, WeakMap);
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function checkMethod(name, arity) {
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var desc = Object.getOwnPropertyDescriptor(WeakMap.prototype, name);
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assertEq(desc.enumerable, false);
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assertEq(desc.configurable, true);
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assertEq(desc.writable, true);
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assertEq(typeof desc.value, 'function');
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assertEq(desc.value.name, name);
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assertEq(desc.value.length, arity);
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}
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checkMethod("get", 1);
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checkMethod("has", 1);
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checkMethod("set", 2);
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checkMethod("delete", 1);
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checkMethod("clear", 0);
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