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js/src/jit-test/tests/proxy/bug901979-2.js@6474c204b198 (annotated)

js/src/jit-test/tests/proxy/bug901979-2.js

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	// A proxy on the prototype chain of the global should not observe anything at
michael@0	2	// all about lazy resolution of globals.
michael@0	3
michael@0	4	var global = this;
michael@0	5	var status = "pass";
michael@0	6
michael@0	7	// This is a little tricky. There are two proxies.
michael@0	8	// 1. handler is a proxy that fails the test if you try to call a method on it.
michael@0	9	var metaHandler = {
michael@0	10	get: _ => { status = "SMASH"; },
michael@0	11	has: _ => { status = "SMASH"; },
michael@0	12	invoke: _ => { status = "SMASH"; }
michael@0	13	};
michael@0	14	var handler = new Proxy({}, metaHandler);
michael@0	15
michael@0	16	// 2. Then we create a proxy using 'handler' as its handler. This means the test
michael@0	17	// will fail if *any* method of the handler is called, not just get/has/invoke.
michael@0	18	var angryProxy = new Proxy(Object.create(null), handler);
michael@0	19	this.__proto__ = angryProxy;
michael@0	20	Object.prototype.__proto__ = angryProxy;
michael@0	21
michael@0	22	// Trip the alarm once, to make sure the proxies are working.
michael@0	23	this.nonExistingProperty;
michael@0	24	assertEq(status, "SMASH");
michael@0	25
michael@0	26	// OK. Reset the status and run the actual test.
michael@0	27	status = "pass";
michael@0	28	Map;
michael@0	29	ArrayBuffer;
michael@0	30	Date;
michael@0	31	assertEq(status, "pass");