node_modules

1 files changed, 79 insertions, 0 deletions

diff --git a/node_modules/core-js/modules/$.collection.js b/node_modules/core-js/modules/$.collection.js
new file mode 100644
index 000000000..61ae123db
--- /dev/null
+++ b/node_modules/core-js/modules/$.collection.js
@@ -0,0 +1,79 @@
+'use strict';
+var global         = require('./$.global')
+  , $export        = require('./$.export')
+  , redefine       = require('./$.redefine')
+  , redefineAll    = require('./$.redefine-all')
+  , forOf          = require('./$.for-of')
+  , strictNew      = require('./$.strict-new')
+  , isObject       = require('./$.is-object')
+  , fails          = require('./$.fails')
+  , $iterDetect    = require('./$.iter-detect')
+  , setToStringTag = require('./$.set-to-string-tag');
+
+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     = {};
+  var fixMethod = function(KEY){
+    var fn = proto[KEY];
+    redefine(proto, KEY,
+      KEY == 'delete' ? function(a){
+        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'has' ? function has(a){
+        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'get' ? function get(a){
+        return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'add' ? function add(a){ fn.call(this, a === 0 ? 0 : a); return this; }
+        : function set(a, b){ fn.call(this, a === 0 ? 0 : a, b); return this; }
+    );
+  };
+  if(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);
+  } else {
+    var instance             = new C
+      // early implementations not supports chaining
+      , HASNT_CHAINING       = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance
+      // V8 ~  Chromium 40- weak-collections throws on primitives, but should return false
+      , THROWS_ON_PRIMITIVES = fails(function(){ instance.has(1); })
+      // most early implementations doesn't supports iterables, most modern - not close it correctly
+      , ACCEPT_ITERABLES     = $iterDetect(function(iter){ new C(iter); }) // eslint-disable-line no-new
+      // for early implementations -0 and +0 not the same
+      , BUGGY_ZERO;
+    if(!ACCEPT_ITERABLES){ 
+      C = wrapper(function(target, iterable){
+        strictNew(target, C, NAME);
+        var that = new Base;
+        if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
+        return that;
+      });
+      C.prototype = proto;
+      proto.constructor = C;
+    }
+    IS_WEAK || instance.forEach(function(val, key){
+      BUGGY_ZERO = 1 / key === -Infinity;
+    });
+    if(THROWS_ON_PRIMITIVES || BUGGY_ZERO){
+      fixMethod('delete');
+      fixMethod('has');
+      IS_MAP && fixMethod('get');
+    }
+    if(BUGGY_ZERO || HASNT_CHAINING)fixMethod(ADDER);
+    // weak collections should not contains .clear method
+    if(IS_WEAK && proto.clear)delete proto.clear;
+  }
+
+  setToStringTag(C, NAME);
+
+  O[NAME] = C;
+  $export($export.G + $export.W + $export.F * (C != Base), O);
+
+  if(!IS_WEAK)common.setStrong(C, NAME, IS_MAP);
+
+  return C;
+};
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