michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: load(libdir + "asserts.js");
michael@0: 
michael@0: // FIXME: Import from std::iteration.
michael@0: const std_iterator = '@@iterator';
michael@0: 
michael@0: if (typeof assertIteratorResult === 'undefined') {
michael@0:     var assertIteratorResult = function assertIteratorResult(result, value, done) {
michael@0:         assertEq(typeof result, "object");
michael@0:         var expectedProps = ['done', 'value'];
michael@0:         var actualProps = Object.getOwnPropertyNames(result);
michael@0:         actualProps.sort(), expectedProps.sort();
michael@0:         assertDeepEq(actualProps, expectedProps);
michael@0:         assertDeepEq(result.value, value);
michael@0:         assertDeepEq(result.done, done);
michael@0:     }
michael@0: }
michael@0: 
michael@0: if (typeof assertIteratorNext === 'undefined') {
michael@0:     var assertIteratorNext = function assertIteratorNext(iter, value) {
michael@0:         assertIteratorResult(iter.next(), value, false);
michael@0:     }
michael@0: }
michael@0: 
michael@0: if (typeof assertIteratorDone === 'undefined') {
michael@0:     var assertIteratorDone = function assertIteratorDone(iter, value) {
michael@0:         assertIteratorResult(iter.next(), value, true);
michael@0:     }
michael@0: }