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 // Flags: --harmony-restrictive-declarations 6 7 // ES#sec-functiondeclarations-in-ifstatement-statement-clauses 8 // Annex B 3.4 FunctionDeclarations in IfStatement Statement Clauses 9 // In sloppy mode, function declarations in if statements act like 10 // they have a block around them. Prohibited in strict mode. 11 (function() { 12 if (false) function f() { }; 13 assertEquals(undefined, f); 14 })(); 15 16 (function() { 17 assertEquals(undefined, f); 18 if (true) function f() { }; 19 assertEquals('function', typeof f); 20 })(); 21 22 (function() { 23 assertEquals(undefined, f); 24 if (true) {} else function f() { }; 25 assertEquals(undefined, f); 26 })(); 27 28 (function() { 29 assertEquals(undefined, f); 30 if (false) {} else function f() { }; 31 assertEquals('function', typeof f); 32 })(); 33 34 // Labeled function declarations undergo the same hoisting/FiB semantics as if 35 // they were unalbeled. 36 (function() { 37 function bar() { 38 return f; 39 x: function f() {} 40 } 41 assertEquals('function', typeof bar()); 42 })(); 43 44 (function() { 45 function bar() { 46 return f; 47 { 48 x: function f() {} 49 } 50 } 51 assertEquals(undefined, bar()); 52 })(); 53
