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: /* ES6 20121122 draft 15.14.4.4. */
michael@0: 
michael@0: function MapForEach(callbackfn, thisArg = undefined) {
michael@0:     /* Step 1-2. */
michael@0:     var M = this;
michael@0:     if (!IsObject(M))
michael@0:         ThrowError(JSMSG_BAD_TYPE, typeof M);
michael@0: 
michael@0:     /* Step 3-4. */
michael@0:     try {
michael@0:         callFunction(std_Map_has, M);
michael@0:     } catch (e) {
michael@0:         ThrowError(JSMSG_BAD_TYPE, typeof M);
michael@0:     }
michael@0: 
michael@0:     /* Step 5. */
michael@0:     if (!IsCallable(callbackfn))
michael@0:         ThrowError(JSMSG_NOT_FUNCTION, DecompileArg(0, callbackfn));
michael@0: 
michael@0:     /* Step 6-8. */
michael@0:     var entries = callFunction(std_Map_iterator, M);
michael@0:     while (true) {
michael@0:         var result = callFunction(std_Map_iterator_next, entries);
michael@0:         if (result.done)
michael@0:             break;
michael@0:         var entry = result.value;
michael@0:         callFunction(callbackfn, thisArg, entry[1], entry[0], M);
michael@0:     }
michael@0: }