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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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40 } | 40 } |
41 | 41 |
42 assertEquals(undefined, x); | 42 assertEquals(undefined, x); |
43 assertEquals(2,y); | 43 assertEquals(2,y); |
44 | 44 |
45 if (true) { | 45 if (true) { |
46 let y; | 46 let y; |
47 assertEquals(undefined, y); | 47 assertEquals(undefined, y); |
48 } | 48 } |
49 | 49 |
| 50 // Invalid declarations are early errors in harmony mode and thus should trigger |
| 51 // an exception in eval code during parsing, before even compiling or executing |
| 52 // the code. Thus the generated function is not called here. |
50 function TestLocalThrows(str, expect) { | 53 function TestLocalThrows(str, expect) { |
51 assertThrows("(function(){" + str + "})()", expect); | 54 assertThrows("(function(){" + str + "})", expect); |
52 } | 55 } |
53 | 56 |
54 function TestLocalDoesNotThrow(str) { | 57 function TestLocalDoesNotThrow(str) { |
55 assertDoesNotThrow("(function(){" + str + "})()"); | 58 assertDoesNotThrow("(function(){" + str + "})()"); |
56 } | 59 } |
57 | 60 |
58 // Unprotected statement | 61 // Test let declarations statement positions. |
59 TestLocalThrows("if (true) let x;", SyntaxError); | 62 TestLocalThrows("if (true) let x;", SyntaxError); |
| 63 TestLocalThrows("if (true) {} else let x;", SyntaxError); |
60 TestLocalThrows("do let x; while (false)", SyntaxError); | 64 TestLocalThrows("do let x; while (false)", SyntaxError); |
61 TestLocalThrows("while (false) let x;", SyntaxError); | 65 TestLocalThrows("while (false) let x;", SyntaxError); |
| 66 TestLocalThrows("label: let x;", SyntaxError); |
| 67 TestLocalThrows("for (;false;) let x;", SyntaxError); |
| 68 TestLocalThrows("switch (true) { case true: let x; }", SyntaxError); |
| 69 TestLocalThrows("switch (true) { default: let x; }", SyntaxError); |
62 | 70 |
| 71 // Test var declarations statement positions. |
63 TestLocalDoesNotThrow("if (true) var x;"); | 72 TestLocalDoesNotThrow("if (true) var x;"); |
| 73 TestLocalDoesNotThrow("if (true) {} else var x;"); |
64 TestLocalDoesNotThrow("do var x; while (false)"); | 74 TestLocalDoesNotThrow("do var x; while (false)"); |
65 TestLocalDoesNotThrow("while (false) var x;"); | 75 TestLocalDoesNotThrow("while (false) var x;"); |
| 76 TestLocalDoesNotThrow("label: var x;"); |
| 77 TestLocalDoesNotThrow("for (;false;) var x;"); |
| 78 TestLocalDoesNotThrow("switch (true) { case true: var x; }"); |
| 79 TestLocalDoesNotThrow("switch (true) { default: var x; }"); |
| 80 |
| 81 // Test function declarations in source element and |
| 82 // non-strict statement positions. |
| 83 function f() { |
| 84 // Non-strict source element positions. |
| 85 function g0() { |
| 86 "use strict"; |
| 87 // Strict source element positions. |
| 88 function h() { } |
| 89 { |
| 90 function h1() { } |
| 91 } |
| 92 } |
| 93 { |
| 94 function g1() { } |
| 95 } |
| 96 // Non-strict statement positions. |
| 97 if (true) function g2() { } |
| 98 if (true) {} else function g3() { } |
| 99 do function g4() { } while (false) |
| 100 while (false) function g5() { } |
| 101 label: function g6() { } |
| 102 for (;false;) function g7() { } |
| 103 switch (true) { case true: function g8() { } } |
| 104 switch (true) { default: function g9() { } } |
| 105 } |
| 106 f(); |
| 107 |
| 108 // Test function declarations in statement position in strict mode. |
| 109 TestLocalThrows("function f() { 'use strict'; if (true) function g() {}", Syntax
Error); |
| 110 TestLocalThrows("function f() { 'use strict'; if (true) {} else function g() {}"
, SyntaxError); |
| 111 TestLocalThrows("function f() { 'use strict'; do function g() {} while (false)",
SyntaxError); |
| 112 TestLocalThrows("function f() { 'use strict'; while (false) function g() {}", Sy
ntaxError); |
| 113 TestLocalThrows("function f() { 'use strict'; label: function g() {}", SyntaxErr
or); |
| 114 TestLocalThrows("function f() { 'use strict'; for (;false;) function g() {}", Sy
ntaxError); |
| 115 TestLocalThrows("function f() { 'use strict'; switch (true) { case true: functio
n g() {} }", SyntaxError); |
| 116 TestLocalThrows("function f() { 'use strict'; switch (true) { default: function
g() {} }", SyntaxError); |
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