diff options
Diffstat (limited to 'node_modules/core-js/modules/library/_collection.js')
| -rw-r--r-- | node_modules/core-js/modules/library/_collection.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/library/_collection.js b/node_modules/core-js/modules/library/_collection.js new file mode 100644 index 000000000..0bdd7fcbb --- /dev/null +++ b/node_modules/core-js/modules/library/_collection.js @@ -0,0 +1,59 @@ +'use strict'; +var global = require('./_global') + , $export = require('./_export') + , meta = require('./_meta') + , fails = require('./_fails') + , hide = require('./_hide') + , redefineAll = require('./_redefine-all') + , forOf = require('./_for-of') + , anInstance = require('./_an-instance') + , isObject = require('./_is-object') + , setToStringTag = require('./_set-to-string-tag') + , dP = require('./_object-dp').f + , each = require('./_array-methods')(0) + , DESCRIPTORS = require('./_descriptors'); + +module.exports = function(NAME, wrapper, methods, common, IS_MAP, IS_WEAK){ + var Base = global[NAME] + , C = Base + , ADDER = IS_MAP ? 'set' : 'add' + , proto = C && C.prototype + , O = {}; + if(!DESCRIPTORS || typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function(){ + new C().entries().next(); + }))){ + // create collection constructor + C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER); + redefineAll(C.prototype, methods); + meta.NEED = true; + } else { + C = wrapper(function(target, iterable){ + anInstance(target, C, NAME, '_c'); + target._c = new Base; + if(iterable != undefined)forOf(iterable, IS_MAP, target[ADDER], target); + }); + each('add,clear,delete,forEach,get,has,set,keys,values,entries,toJSON'.split(','),function(KEY){ + var IS_ADDER = KEY == 'add' || KEY == 'set'; + if(KEY in proto && !(IS_WEAK && KEY == 'clear'))hide(C.prototype, KEY, function(a, b){ + anInstance(this, C, KEY); + if(!IS_ADDER && IS_WEAK && !isObject(a))return KEY == 'get' ? undefined : false; + var result = this._c[KEY](a === 0 ? 0 : a, b); + return IS_ADDER ? this : result; + }); + }); + if('size' in proto)dP(C.prototype, 'size', { + get: function(){ + return this._c.size; + } + }); + } + + setToStringTag(C, NAME); + + O[NAME] = C; + $export($export.G + $export.W + $export.F, O); + + if(!IS_WEAK)common.setStrong(C, NAME, IS_MAP); + + return C; +};
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