No puede seleccionar más de 25 temas Los temas deben comenzar con una letra o número, pueden incluir guiones ('-') y pueden tener hasta 35 caracteres de largo.
 
 
 
 

1 línea
3.0 KiB

  1. {"ast":null,"code":"'use strict';\n\nvar LIBRARY = require('./_library');\n\nvar $export = require('./_export');\n\nvar redefine = require('./_redefine');\n\nvar hide = require('./_hide');\n\nvar Iterators = require('./_iterators');\n\nvar $iterCreate = require('./_iter-create');\n\nvar setToStringTag = require('./_set-to-string-tag');\n\nvar getPrototypeOf = require('./_object-gpo');\n\nvar ITERATOR = require('./_wks')('iterator');\n\nvar BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`\n\nvar FF_ITERATOR = '@@iterator';\nvar KEYS = 'keys';\nvar VALUES = 'values';\n\nvar returnThis = function returnThis() {\n return this;\n};\n\nmodule.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {\n $iterCreate(Constructor, NAME, next);\n\n var getMethod = function getMethod(kind) {\n if (!BUGGY && kind in proto) return proto[kind];\n\n switch (kind) {\n case KEYS:\n return function keys() {\n return new Constructor(this, kind);\n };\n\n case VALUES:\n return function values() {\n return new Constructor(this, kind);\n };\n }\n\n return function entries() {\n return new Constructor(this, kind);\n };\n };\n\n var TAG = NAME + ' Iterator';\n var DEF_VALUES = DEFAULT == VALUES;\n var VALUES_BUG = false;\n var proto = Base.prototype;\n var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];\n var $default = $native || getMethod(DEFAULT);\n var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;\n var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;\n var methods, key, IteratorPrototype; // Fix native\n\n if ($anyNative) {\n IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));\n\n if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {\n // Set @@toStringTag to native iterators\n setToStringTag(IteratorPrototype, TAG, true); // fix for some old engines\n\n if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);\n }\n } // fix Array#{values, @@iterator}.name in V8 / FF\n\n\n if (DEF_VALUES && $native && $native.name !== VALUES) {\n VALUES_BUG = true;\n\n $default = function values() {\n return $native.call(this);\n };\n } // Define iterator\n\n\n if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {\n hide(proto, ITERATOR, $default);\n } // Plug for library\n\n\n Iterators[NAME] = $default;\n Iterators[TAG] = returnThis;\n\n if (DEFAULT) {\n methods = {\n values: DEF_VALUES ? $default : getMethod(VALUES),\n keys: IS_SET ? $default : getMethod(KEYS),\n entries: $entries\n };\n if (FORCED) for (key in methods) {\n if (!(key in proto)) redefine(proto, key, methods[key]);\n } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);\n }\n\n return methods;\n};","map":null,"metadata":{},"sourceType":"script"}