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// Make sure that we can find own, enumerable symbols.
var symbol = Symbol("bad");
var symbol2 = Symbol("good");
var proxy = new Proxy({}, {
ownKeys() {
return [symbol, symbol2];
},
getOwnPropertyDescriptor(target, name) {
if (name == symbol)
return {configurable: true, enumerable: false, value: {}};
// Only this enumerable symbol should be defined.
if (name == symbol2)
return {configurable: true, enumerable: true, value: {}};
assertEq(true, false);
},
get(target, name) {
// Slightly confusing, but these are the descriptors that defineProperties
// is going to define on the object.
if (name == symbol)
return {configurable: true, value: "bad"};
if (name == symbol2)
return {configurable: true, value: "good"};
assertEq(true, false);
}
});
assertEq(Object.getOwnPropertySymbols(proxy).length, 2);
var obj = {};
Object.defineProperties(obj, proxy);
assertEq(Object.getOwnPropertySymbols(obj).length, 1);
assertEq(symbol in obj, false);
assertEq(symbol2 in obj, true);
assertEq(obj[symbol2], "good");
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