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author | RaindropsSys <raindrops@equestria.dev> | 2023-10-24 17:43:37 +0200 |
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committer | RaindropsSys <raindrops@equestria.dev> | 2023-10-24 17:43:37 +0200 |
commit | ae187b6d75c8079da0be1dc288613bad8466fe61 (patch) | |
tree | 5ea0d34185a2270f29ffaa65e1f5258028d7d5d0 /desktop/node_modules/function-bind/implementation.js | |
download | mist-ae187b6d75c8079da0be1dc288613bad8466fe61.tar.gz mist-ae187b6d75c8079da0be1dc288613bad8466fe61.tar.bz2 mist-ae187b6d75c8079da0be1dc288613bad8466fe61.zip |
Initial commit
Diffstat (limited to 'desktop/node_modules/function-bind/implementation.js')
-rw-r--r-- | desktop/node_modules/function-bind/implementation.js | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/desktop/node_modules/function-bind/implementation.js b/desktop/node_modules/function-bind/implementation.js new file mode 100644 index 0000000..fd4384c --- /dev/null +++ b/desktop/node_modules/function-bind/implementation.js @@ -0,0 +1,84 @@ +'use strict'; + +/* eslint no-invalid-this: 1 */ + +var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible '; +var toStr = Object.prototype.toString; +var max = Math.max; +var funcType = '[object Function]'; + +var concatty = function concatty(a, b) { + var arr = []; + + for (var i = 0; i < a.length; i += 1) { + arr[i] = a[i]; + } + for (var j = 0; j < b.length; j += 1) { + arr[j + a.length] = b[j]; + } + + return arr; +}; + +var slicy = function slicy(arrLike, offset) { + var arr = []; + for (var i = offset || 0, j = 0; i < arrLike.length; i += 1, j += 1) { + arr[j] = arrLike[i]; + } + return arr; +}; + +var joiny = function (arr, joiner) { + var str = ''; + for (var i = 0; i < arr.length; i += 1) { + str += arr[i]; + if (i + 1 < arr.length) { + str += joiner; + } + } + return str; +}; + +module.exports = function bind(that) { + var target = this; + if (typeof target !== 'function' || toStr.apply(target) !== funcType) { + throw new TypeError(ERROR_MESSAGE + target); + } + var args = slicy(arguments, 1); + + var bound; + var binder = function () { + if (this instanceof bound) { + var result = target.apply( + this, + concatty(args, arguments) + ); + if (Object(result) === result) { + return result; + } + return this; + } + return target.apply( + that, + concatty(args, arguments) + ); + + }; + + var boundLength = max(0, target.length - args.length); + var boundArgs = []; + for (var i = 0; i < boundLength; i++) { + boundArgs[i] = '$' + i; + } + + bound = Function('binder', 'return function (' + joiny(boundArgs, ',') + '){ 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; +}; |