var $ = require('../internals/export');
var getBuiltIn = require('../internals/get-built-in');
-var aFunction = require('../internals/a-function');
+var apply = require('../internals/function-apply');
+var bind = require('../internals/function-bind');
+var aConstructor = require('../internals/a-constructor');
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');
+var ObjectPrototype = Object.prototype;
+var push = [].push;
// `Reflect.construct` method
// https://tc39.es/ecma262/#sec-reflect.construct
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);
+ aConstructor(Target);
anObject(args);
- var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]);
+ var newTarget = arguments.length < 3 ? Target : aConstructor(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
}
// w/o altered newTarget, lot of arguments case
var $args = [null];
- $args.push.apply($args, args);
- return new (bind.apply(Target, $args))();
+ apply(push, $args, args);
+ return new (apply(bind, 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);
+ var instance = create(isObject(proto) ? proto : ObjectPrototype);
+ var result = apply(Target, instance, args);
return isObject(result) ? result : instance;
}
});