michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  * Contributor: Andreas Gal
michael@0:  */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 546590;
michael@0: var summary = 'basic scripted proxies tests';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: function test() {
michael@0:     enterFunc ('test');
michael@0:     printBugNumber(BUGNUMBER);
michael@0:     printStatus(summary);
michael@0: 
michael@0:     testObj({ foo: 1, bar: 2 });
michael@0:     testObj({ 1: 2, 3: 4 });
michael@0:     testObj([ 1, 2, 3 ]);
michael@0:     testObj(new Date());
michael@0:     testObj(new Array());
michael@0:     testObj(new RegExp());
michael@0:     testObj(Date);
michael@0:     testObj(Array);
michael@0:     testObj(RegExp);
michael@0: 
michael@0:     /* Test function proxies. */
michael@0:     var proxy = Proxy.createFunction({
michael@0:         get: function(obj,name) { return Function.prototype[name]; },
michael@0: 	fix: function() {
michael@0: 	    return ({});
michael@0: 	}
michael@0:     }, function() { return "call"; });
michael@0: 
michael@0:     assertEq(proxy(), "call");
michael@0:     assertEq(Function.prototype.bind.call(proxy)(), "call");
michael@0:     assertEq(typeof proxy, "function");
michael@0:     if ("isTrapping" in Proxy) {
michael@0: 	assertEq(Proxy.isTrapping(proxy), true);
michael@0: 	assertEq(Proxy.fix(proxy), true);
michael@0: 	assertEq(Proxy.isTrapping(proxy), false);
michael@0: 	assertEq(typeof proxy, "function");
michael@0: 	assertEq(proxy(), "call");
michael@0:     }
michael@0: 
michael@0:     /* Test function proxies as constructors. */
michael@0:     var proxy = Proxy.createFunction({
michael@0:         get: function(obj, name) { return Function.prototype[name]; },
michael@0: 	fix: function() { return ({}); }
michael@0:     },
michael@0:     function() { var x = {}; x.origin = "call"; return x; },
michael@0:     function() { var x = {}; x.origin = "new"; return x; })
michael@0: 
michael@0:     assertEq(proxy().origin, "call");
michael@0:     assertEq(Function.prototype.bind.call(proxy)().origin, "call");
michael@0:     assertEq((new proxy()).origin, "new");
michael@0:     assertEq(new (Function.prototype.bind.call(proxy))().origin, "new");
michael@0:     if ("fix" in Proxy) {
michael@0: 	assertEq(Proxy.fix(proxy), true);
michael@0: 	assertEq(proxy().origin, "call");
michael@0: 	assertEq((new proxy()).origin, "new");
michael@0:     }
michael@0: 
michael@0:     /* Test fallback on call if no construct trap was given. */
michael@0:     var proxy = Proxy.createFunction({
michael@0:         get: function(obj, name) { return Function.prototype[name]; },
michael@0:         fix: function() { return ({}); }
michael@0:     },
michael@0:     function() { this.origin = "new"; return "new-ret"; });
michael@0: 
michael@0:     assertEq((new proxy()).origin, "new");
michael@0:     if ("fix" in Proxy) {
michael@0:         assertEq(Proxy.fix(proxy), true);
michael@0:         assertEq((new proxy()).origin, "new");
michael@0:     }
michael@0: 
michael@0:     /* Test invoke. */
michael@0:     var proxy = Proxy.create({ get: function(obj,name) { return function(a,b,c) { return name + uneval([a,b,c]); } }});
michael@0:     assertEq(proxy.foo(1,2,3), "foo[1, 2, 3]");
michael@0: 
michael@0:     reportCompare(0, 0, "done.");
michael@0: 
michael@0:     exitFunc ('test');
michael@0: }
michael@0: 
michael@0: /* Test object proxies. */
michael@0: function noopHandlerMaker(obj) {
michael@0:     return {
michael@0: 	getOwnPropertyDescriptor: function(name) {
michael@0: 	    var desc = Object.getOwnPropertyDescriptor(obj);
michael@0: 	    // a trapping proxy's properties must always be configurable
michael@0: 	    desc.configurable = true;
michael@0: 	    return desc;
michael@0: 	},
michael@0: 	getPropertyDescriptor: function(name) {
michael@0: 	    var desc = Object.getPropertyDescriptor(obj); // assumed
michael@0: 	    // a trapping proxy's properties must always be configurable
michael@0: 	    desc.configurable = true;
michael@0: 	    return desc;
michael@0: 	},
michael@0: 	getOwnPropertyNames: function() {
michael@0: 	    return Object.getOwnPropertyNames(obj);
michael@0: 	},
michael@0: 	defineProperty: function(name, desc) {
michael@0: 	    return Object.defineProperty(obj, name, desc);
michael@0: 	},
michael@0: 	delete: function(name) { return delete obj[name]; },
michael@0: 	fix: function() {
michael@0: 	    // As long as obj is not frozen, the proxy won't allow itself to be fixed
michael@0: 	    // if (!Object.isFrozen(obj)) [not implemented in SpiderMonkey]
michael@0: 	    //     return undefined;
michael@0: 	    // return Object.getOwnProperties(obj); // assumed [not implemented in SpiderMonkey]
michael@0: 	    var props = {};
michael@0: 	    for (x in obj)
michael@0: 		props[x] = Object.getOwnPropertyDescriptor(obj, x);
michael@0: 	    return props;
michael@0: 	},
michael@0:  	has: function(name) { return name in obj; },
michael@0: 	hasOwn: function(name) { return ({}).hasOwnProperty.call(obj, name); },
michael@0: 	get: function(receiver, name) { return obj[name]; },
michael@0: 	set: function(receiver, name, val) { obj[name] = val; return true; }, // bad behavior when set fails in non-strict mode
michael@0: 	enumerate: function() {
michael@0: 	    var result = [];
michael@0: 	    for (name in obj) { result.push(name); };
michael@0: 	    return result;
michael@0: 	},
michael@0: 	keys: function() { return Object.keys(obj); }
michael@0:     };
michael@0: };
michael@0: 
michael@0: function testNoopHandler(obj, proxy) {
michael@0:     /* Check that both objects see the same properties. */
michael@0:     for (x in obj)
michael@0: 	assertEq(obj[x], proxy[x]);
michael@0:     for (x in proxy)
michael@0: 	assertEq(obj[x], proxy[x]);
michael@0:     /* Check that the iteration order is the same. */
michael@0:     var a = [], b = [];
michael@0:     for (x in obj)
michael@0: 	a.push(x);
michael@0:     for (x in proxy)
michael@0: 	b.push(x);
michael@0:     assertEq(uneval(a), uneval(b));
michael@0: }
michael@0: 
michael@0: function testObj(obj) {
michael@0:     var proxy = Proxy.create(noopHandlerMaker(obj));
michael@0:     testNoopHandler(obj, proxy);
michael@0:     assertEq(typeof proxy, "object");
michael@0:     if ("isTrapping" in Proxy) {
michael@0: 	assertEq(Proxy.isTrapping(proxy), true);
michael@0: 	assertEq(Proxy.fix(proxy), true);
michael@0: 	assertEq(Proxy.isTrapping(proxy), false);
michael@0: 	assertEq(typeof proxy, "object");
michael@0: 	testNoopHandler(obj, proxy);
michael@0:     }
michael@0: }