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Commit Description:
Update README.rdoc
Commit Description:
Update README.rdoc
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node_modules/function-bind/implementation.js
| 52 lines
| 1.4 KiB
| application/javascript
| JavascriptLexer
|
| r789 | 'use strict'; | |||
| /* eslint no-invalid-this: 1 */ | ||||
| var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible '; | ||||
| var slice = Array.prototype.slice; | ||||
| var toStr = Object.prototype.toString; | ||||
| var funcType = '[object Function]'; | ||||
| module.exports = function bind(that) { | ||||
| var target = this; | ||||
| if (typeof target !== 'function' || toStr.call(target) !== funcType) { | ||||
| throw new TypeError(ERROR_MESSAGE + target); | ||||
| } | ||||
| var args = slice.call(arguments, 1); | ||||
| var bound; | ||||
| var binder = function () { | ||||
| if (this instanceof bound) { | ||||
| var result = target.apply( | ||||
| this, | ||||
| args.concat(slice.call(arguments)) | ||||
| ); | ||||
| if (Object(result) === result) { | ||||
| return result; | ||||
| } | ||||
| return this; | ||||
| } else { | ||||
| return target.apply( | ||||
| that, | ||||
| args.concat(slice.call(arguments)) | ||||
| ); | ||||
| } | ||||
| }; | ||||
| var boundLength = Math.max(0, target.length - args.length); | ||||
| var boundArgs = []; | ||||
| for (var i = 0; i < boundLength; i++) { | ||||
| boundArgs.push('$' + i); | ||||
| } | ||||
| bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder); | ||||
| if (target.prototype) { | ||||
| var Empty = function Empty() {}; | ||||
| Empty.prototype = target.prototype; | ||||
| bound.prototype = new Empty(); | ||||
| Empty.prototype = null; | ||||
| } | ||||
| return bound; | ||||
| }; | ||||