js/src/builtin/Map.js@b8a032363ba2 (annotated)
js/src/builtin/Map.js
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | /* ES6 20121122 draft 15.14.4.4. */ |
| michael@0 | 6 | |
| michael@0 | 7 | function MapForEach(callbackfn, thisArg = undefined) { |
| michael@0 | 8 | /* Step 1-2. */ |
| michael@0 | 9 | var M = this; |
| michael@0 | 10 | if (!IsObject(M)) |
| michael@0 | 11 | ThrowError(JSMSG_BAD_TYPE, typeof M); |
| michael@0 | 12 | |
| michael@0 | 13 | /* Step 3-4. */ |
| michael@0 | 14 | try { |
| michael@0 | 15 | callFunction(std_Map_has, M); |
| michael@0 | 16 | } catch (e) { |
| michael@0 | 17 | ThrowError(JSMSG_BAD_TYPE, typeof M); |
| michael@0 | 18 | } |
| michael@0 | 19 | |
| michael@0 | 20 | /* Step 5. */ |
| michael@0 | 21 | if (!IsCallable(callbackfn)) |
| michael@0 | 22 | ThrowError(JSMSG_NOT_FUNCTION, DecompileArg(0, callbackfn)); |
| michael@0 | 23 | |
| michael@0 | 24 | /* Step 6-8. */ |
| michael@0 | 25 | var entries = callFunction(std_Map_iterator, M); |
| michael@0 | 26 | while (true) { |
| michael@0 | 27 | var result = callFunction(std_Map_iterator_next, entries); |
| michael@0 | 28 | if (result.done) |
| michael@0 | 29 | break; |
| michael@0 | 30 | var entry = result.value; |
| michael@0 | 31 | callFunction(callbackfn, thisArg, entry[1], entry[0], M); |
| michael@0 | 32 | } |
| michael@0 | 33 | } |
