Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 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 | })(); |