1// Copyright 2016 the V8 project authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5 6(function(a = 0){ 7 var x; // allocated in a var block, due to use of default parameter 8 (function() { return !x })(); 9})(); 10 11(function({a}){ 12 var x; // allocated in a var block, due to use of parameter destructuring 13 (function() { return !x })(); 14})({}); 15 16(function(...a){ 17 var x; // allocated in a var block, due to use of rest parameter 18 (function() { return !x })(); 19})(); 20