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author | janekptacijarabaci <janekptacijarabaci@seznam.cz> | 2018-03-30 09:44:21 +0200 |
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committer | janekptacijarabaci <janekptacijarabaci@seznam.cz> | 2018-03-30 09:44:21 +0200 |
commit | a1a007a4856fa50d6d811c2268f881e3666f4c67 (patch) | |
tree | 24b082c1bfb5777f1770c82a534bf765160bc1b8 /js/src/tests/ecma_6/shell.js | |
parent | eddd0de2ae80e176011f41a5400e81522d53f4f3 (diff) | |
parent | 59bf4204a84f7638d3f89a29bc7c04e5dc401369 (diff) | |
download | UXP-a1a007a4856fa50d6d811c2268f881e3666f4c67.tar UXP-a1a007a4856fa50d6d811c2268f881e3666f4c67.tar.gz UXP-a1a007a4856fa50d6d811c2268f881e3666f4c67.tar.lz UXP-a1a007a4856fa50d6d811c2268f881e3666f4c67.tar.xz UXP-a1a007a4856fa50d6d811c2268f881e3666f4c67.zip |
Merge branch 'master' of https://github.com/MoonchildProductions/UXP into html_input_datetime_1
Diffstat (limited to 'js/src/tests/ecma_6/shell.js')
-rw-r--r-- | js/src/tests/ecma_6/shell.js | 52 |
1 files changed, 37 insertions, 15 deletions
diff --git a/js/src/tests/ecma_6/shell.js b/js/src/tests/ecma_6/shell.js index 06be6f2db..756da9f36 100644 --- a/js/src/tests/ecma_6/shell.js +++ b/js/src/tests/ecma_6/shell.js @@ -3,21 +3,43 @@ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ (function(global) { - /** Yield every permutation of the elements in some array. */ - global.Permutations = function* Permutations(items) { - if (items.length == 0) { - yield []; - } else { - items = items.slice(0); - for (let i = 0; i < items.length; i++) { - let swap = items[0]; - items[0] = items[i]; - items[i] = swap; - for (let e of Permutations(items.slice(1, items.length))) - yield [items[0]].concat(e); - } - } - }; + /** Yield every permutation of the elements in some array. */ + global.Permutations = function* Permutations(items) { + if (items.length == 0) { + yield []; + } else { + items = items.slice(0); + for (let i = 0; i < items.length; i++) { + let swap = items[0]; + items[0] = items[i]; + items[i] = swap; + for (let e of Permutations(items.slice(1, items.length))) + yield [items[0]].concat(e); + } + } + }; + + /** Make an iterator with a return method. */ + global.makeIterator = function makeIterator(overrides) { + var throwMethod; + if (overrides && overrides.throw) + throwMethod = overrides.throw; + var iterator = { + throw: throwMethod, + next: function(x) { + if (overrides && overrides.next) + return overrides.next(x); + return { done: false }; + }, + return: function(x) { + if (overrides && overrides.ret) + return overrides.ret(x); + return { done: true }; + } + }; + + return function() { return iterator; }; + }; })(this); if (typeof assertThrowsInstanceOf === 'undefined') { |