diff options
Diffstat (limited to 'node_modules/es6-iterator/for-of.js')
| -rw-r--r-- | node_modules/es6-iterator/for-of.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/node_modules/es6-iterator/for-of.js b/node_modules/es6-iterator/for-of.js new file mode 100644 index 00000000..5d15c349 --- /dev/null +++ b/node_modules/es6-iterator/for-of.js @@ -0,0 +1,47 @@ +"use strict"; + +var isArguments = require("es5-ext/function/is-arguments") + , callable = require("es5-ext/object/valid-callable") + , isString = require("es5-ext/string/is-string") + , get = require("./get"); + +var isArray = Array.isArray, call = Function.prototype.call, some = Array.prototype.some; + +module.exports = function (iterable, cb /*, thisArg*/) { + var mode, thisArg = arguments[2], result, doBreak, broken, i, length, char, code; + if (isArray(iterable) || isArguments(iterable)) mode = "array"; + else if (isString(iterable)) mode = "string"; + else iterable = get(iterable); + + callable(cb); + doBreak = function () { + broken = true; + }; + if (mode === "array") { + some.call(iterable, function (value) { + call.call(cb, thisArg, value, doBreak); + return broken; + }); + return; + } + if (mode === "string") { + length = iterable.length; + for (i = 0; i < length; ++i) { + char = iterable[i]; + if (i + 1 < length) { + code = char.charCodeAt(0); + if (code >= 0xd800 && code <= 0xdbff) char += iterable[++i]; + } + call.call(cb, thisArg, char, doBreak); + if (broken) break; + } + return; + } + result = iterable.next(); + + while (!result.done) { + call.call(cb, thisArg, result.value, doBreak); + if (broken) return; + result = iterable.next(); + } +}; |
