testDirectProxyGetInherited2.js

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// Getting a property that's inherted from a proxy calls the proxy's get handler.

var handler = {

    get(t, id, r) {

        assertEq(this, handler);

        assertEq(t, target);

        assertEq(id, "foo");

        assertEq(r, obj);

        return "bar";

},

    getOwnPropertyDescriptor(t, id) {

        throw "FAIL";

};

var target = {};

var proto = new Proxy(target, handler);

var obj = Object.create(proto);

assertEq(obj.foo, "bar");

// Longer proto chain: same result.

var origObj = obj;

for (var i = 0; i < 4; i++)

    obj = Object.create(obj);

assertEq(obj.foo, "bar");

// Chain of transparent proxy wrappers: same result.

obj = origObj;

for (var i = 0; i < 4; i++)

    obj = new Proxy(obj, {});

assertEq(obj.foo, "bar");