diff options
Diffstat (limited to 'node_modules/core-js/modules/es.reflect.construct.js')
| -rw-r--r-- | node_modules/core-js/modules/es.reflect.construct.js | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/node_modules/core-js/modules/es.reflect.construct.js b/node_modules/core-js/modules/es.reflect.construct.js deleted file mode 100644 index 9e678dd..0000000 --- a/node_modules/core-js/modules/es.reflect.construct.js +++ /dev/null @@ -1,51 +0,0 @@ -var $ = require('../internals/export'); -var getBuiltIn = require('../internals/get-built-in'); -var aFunction = require('../internals/a-function'); -var anObject = require('../internals/an-object'); -var isObject = require('../internals/is-object'); -var create = require('../internals/object-create'); -var bind = require('../internals/function-bind'); -var fails = require('../internals/fails'); - -var nativeConstruct = getBuiltIn('Reflect', 'construct'); - -// `Reflect.construct` method -// https://tc39.github.io/ecma262/#sec-reflect.construct -// MS Edge supports only 2 arguments and argumentsList argument is optional -// FF Nightly sets third argument as `new.target`, but does not create `this` from it -var NEW_TARGET_BUG = fails(function () { - function F() { /* empty */ } - return !(nativeConstruct(function () { /* empty */ }, [], F) instanceof F); -}); -var ARGS_BUG = !fails(function () { - nativeConstruct(function () { /* empty */ }); -}); -var FORCED = NEW_TARGET_BUG || ARGS_BUG; - -$({ target: 'Reflect', stat: true, forced: FORCED, sham: FORCED }, { - construct: function construct(Target, args /* , newTarget */) { - aFunction(Target); - anObject(args); - var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]); - if (ARGS_BUG && !NEW_TARGET_BUG) return nativeConstruct(Target, args, newTarget); - if (Target == newTarget) { - // w/o altered newTarget, optimization for 0-4 arguments - switch (args.length) { - case 0: return new Target(); - case 1: return new Target(args[0]); - case 2: return new Target(args[0], args[1]); - case 3: return new Target(args[0], args[1], args[2]); - case 4: return new Target(args[0], args[1], args[2], args[3]); - } - // w/o altered newTarget, lot of arguments case - var $args = [null]; - $args.push.apply($args, args); - return new (bind.apply(Target, $args))(); - } - // with altered newTarget, not support built-in constructors - var proto = newTarget.prototype; - var instance = create(isObject(proto) ? proto : Object.prototype); - var result = Function.apply.call(Target, instance, args); - return isObject(result) ? result : instance; - } -}); |
