32 lines
846 B
JavaScript
32 lines
846 B
JavaScript
function shouldBe(actual, expected) {
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if (actual !== expected)
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throw new Error('bad value: ' + actual);
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}
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{
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var order = [];
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let target = {x: 20, y:42};
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let handler = {
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getOwnPropertyDescriptor(theTarget, propName)
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{
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order.push(`getOwnPropertyDescriptor ${propName}`);
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return {
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enumerable: true,
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configurable: true,
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value: 42
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};
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},
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get(theTarget, propName, receiver)
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{
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order.push(`get ${propName}`);
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return 42;
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}
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};
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let proxy = new Proxy(target, handler);
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var result = Object.assign({}, proxy);
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shouldBe(result.x, 42);
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shouldBe(result.y, 42);
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shouldBe(order.join(','), `getOwnPropertyDescriptor x,get x,getOwnPropertyDescriptor y,get y`);
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}
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