diff options
Diffstat (limited to 'tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/array/#/slice/shim.js')
-rw-r--r-- | tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/array/#/slice/shim.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/array/#/slice/shim.js b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/array/#/slice/shim.js new file mode 100644 index 0000000000..2761a1aad8 --- /dev/null +++ b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/array/#/slice/shim.js @@ -0,0 +1,35 @@ +'use strict'; + +var toInteger = require('../../../number/to-integer') + , toPosInt = require('../../../number/to-pos-integer') + , isPlainArray = require('../../is-plain-array') + + , isArray = Array.isArray, slice = Array.prototype.slice + , hasOwnProperty = Object.prototype.hasOwnProperty, max = Math.max; + +module.exports = function (start, end) { + var length, result, i; + if (!this || !isArray(this) || isPlainArray(this)) { + return slice.apply(this, arguments); + } + length = toPosInt(this.length); + start = toInteger(start); + if (start < 0) start = max(length + start, 0); + else if (start > length) start = length; + if (end === undefined) { + end = length; + } else { + end = toInteger(end); + if (end < 0) end = max(length + end, 0); + else if (end > length) end = length; + } + if (start > end) start = end; + result = new this.constructor(end - start); + i = 0; + while (start !== end) { + if (hasOwnProperty.call(this, start)) result[i] = this[start]; + ++i; + ++start; + } + return result; +}; |