michael@0: // An array iterator for a proxy calls the traps in a predictable order.
michael@0: 
michael@0: load(libdir + "asserts.js");
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var s = '';
michael@0: 
michael@0: var proxyObj = {
michael@0:     get: function (recipient, name) {
michael@0:         if (name == 'length') {
michael@0:             s += 'L';
michael@0:             return 2;
michael@0:         } else {
michael@0:             s += name;
michael@0:             return name;
michael@0:         }
michael@0:     }
michael@0: };
michael@0: 
michael@0: var it = Array.prototype[std_iterator].call(Proxy.create(proxyObj));
michael@0: 
michael@0: assertIteratorNext(it, "0");
michael@0: s += ' ';
michael@0: assertIteratorNext(it, "1");
michael@0: s += ' ';
michael@0: assertIteratorDone(it, undefined);
michael@0: assertEq(s, "L0 L1 L");
michael@0: 
michael@0: s = '';
michael@0: var ki = Array.prototype.keys.call(Proxy.create(proxyObj));
michael@0: 
michael@0: assertIteratorNext(ki, 0);
michael@0: s += ' ';
michael@0: assertIteratorNext(ki, 1);
michael@0: s += ' ';
michael@0: assertIteratorDone(ki, undefined);
michael@0: assertEq(s, "L L L");
michael@0: 
michael@0: s = '';
michael@0: var ei = Array.prototype.entries.call(Proxy.create(proxyObj));
michael@0: 
michael@0: assertIteratorNext(ei, [0, "0"]);
michael@0: s += ' ';
michael@0: assertIteratorNext(ei, [1, "1"]);
michael@0: s += ' ';
michael@0: assertIteratorDone(ei, undefined);
michael@0: assertEq(s, "L0 L1 L");