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 // In sloppy mode we allow function redeclarations within blocks for webcompat. 7 (function() { 8 assertEquals(undefined, f); // Annex B 9 if (true) { 10 assertEquals(2, f()); 11 function f() { return 1 } 12 assertEquals(2, f()); 13 function f() { return 2 } 14 assertEquals(2, f()); 15 } 16 assertEquals(2, f()); // Annex B 17 })(); 18 19 // Should still fail in strict mode 20 assertThrows(` 21 (function() { 22 "use strict"; 23 if (true) { 24 function f() { return 1 } 25 function f() { return 2 } 26 } 27 })(); 28 `, SyntaxError); 29 30 // Conflicts between let and function still throw 31 assertThrows(` 32 (function() { 33 if (true) { 34 let f; 35 function f() { return 2 } 36 } 37 })(); 38 `, SyntaxError); 39 40 assertThrows(` 41 (function() { 42 if (true) { 43 function f() { return 2 } 44 let f; 45 } 46 })(); 47 `, SyntaxError); 48 49 // Conflicts between const and function still throw 50 assertThrows(` 51 (function() { 52 if (true) { 53 const f; 54 function f() { return 2 } 55 } 56 })(); 57 `, SyntaxError); 58 59 assertThrows(` 60 (function() { 61 if (true) { 62 function f() { return 2 } 63 const f; 64 } 65 })(); 66 `, SyntaxError); 67 68 // Annex B redefinition semantics still apply with more blocks 69 (function() { 70 assertEquals(undefined, f); // Annex B 71 if (true) { 72 assertEquals(undefined, f); 73 { function f() { return 1 } } 74 assertEquals(1, f()); 75 { function f() { return 2 } } 76 assertEquals(2, f()); 77 } 78 assertEquals(2, f()); // Annex B 79 })(); 80
