test262/test/built-ins/Proxy/apply/trap-is-undefined-target-is...

34 lines
939 B
JavaScript

// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-proxy-object-internal-methods-and-internal-slots-call-thisargument-argumentslist
description: >
If "apply" trap is null or undefined, [[Call]] is properly
forwarded to [[ProxyTarget]] (which is also a Proxy object).
info: |
[[Call]] ( thisArgument, argumentsList )
[...]
4. Let target be O.[[ProxyTarget]].
5. Let trap be ? GetMethod(handler, "apply").
6. If trap is undefined, then
a. Return ? Call(target, thisArgument, argumentsList).
features: [generators, Proxy, Reflect]
includes: [compareArray.js]
---*/
var sum = function* (arg) {
yield this.foo;
yield arg;
};
var sumTarget = new Proxy(sum, {});
var sumProxy = new Proxy(sumTarget, {
apply: undefined,
});
var gen = Reflect.apply(sumProxy, {foo: 10}, [1]);
assert.compareArray(Array.from(gen), [10, 1]);