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| 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 })(); |
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