Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 28 | // Flags: --harmony-scoping |
| 29 | |
| 30 | // TODO(ES6): properly activate extended mode |
| 31 | "use strict"; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 32 | |
| 33 | // We want to test the context chain shape. In each of the tests cases |
| 34 | // below, the outer with is to force a runtime lookup of the identifier 'x' |
| 35 | // to actually verify that the inner context has been discarded. A static |
| 36 | // lookup of 'x' might accidentally succeed. |
| 37 | |
| 38 | { |
| 39 | let x = 2; |
| 40 | L: { |
| 41 | let x = 3; |
| 42 | assertEquals(3, x); |
| 43 | break L; |
| 44 | assertTrue(false); |
| 45 | } |
| 46 | assertEquals(2, x); |
| 47 | } |
| 48 | |
| 49 | do { |
| 50 | let x = 4; |
| 51 | assertEquals(4,x); |
| 52 | { |
| 53 | let x = 5; |
| 54 | assertEquals(5, x); |
| 55 | continue; |
| 56 | assertTrue(false); |
| 57 | } |
| 58 | } while (false); |
| 59 | |
| 60 | var caught = false; |
| 61 | try { |
| 62 | { |
| 63 | let xx = 18; |
| 64 | throw 25; |
| 65 | assertTrue(false); |
| 66 | } |
| 67 | } catch (e) { |
| 68 | caught = true; |
| 69 | assertEquals(25, e); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 70 | (function () { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 71 | try { |
| 72 | // NOTE: This checks that the block scope containing xx has been |
| 73 | // removed from the context chain. |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 74 | eval('xx'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 75 | assertTrue(false); // should not reach here |
| 76 | } catch (e2) { |
| 77 | assertTrue(e2 instanceof ReferenceError); |
| 78 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 79 | })(); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 80 | } |
| 81 | assertTrue(caught); |
| 82 | |
| 83 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 84 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 85 | label: { |
| 86 | let x = 'inner'; |
| 87 | break label; |
| 88 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 89 | assertEquals('outer', eval('x')); |
| 90 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 91 | |
| 92 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 93 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 94 | label: { |
| 95 | let x = 'middle'; |
| 96 | { |
| 97 | let x = 'inner'; |
| 98 | break label; |
| 99 | } |
| 100 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 101 | assertEquals('outer', eval('x')); |
| 102 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 103 | |
| 104 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 105 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 106 | for (var i = 0; i < 10; ++i) { |
| 107 | let x = 'inner' + i; |
| 108 | continue; |
| 109 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 110 | assertEquals('outer', eval('x')); |
| 111 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 112 | |
| 113 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 114 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 115 | label: for (var i = 0; i < 10; ++i) { |
| 116 | let x = 'middle' + i; |
| 117 | for (var j = 0; j < 10; ++j) { |
| 118 | let x = 'inner' + j; |
| 119 | continue label; |
| 120 | } |
| 121 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 122 | assertEquals('outer', eval('x')); |
| 123 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 124 | |
| 125 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 126 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 127 | try { |
| 128 | let x = 'inner'; |
| 129 | throw 0; |
| 130 | } catch (e) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 131 | assertEquals('outer', eval('x')); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 132 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 133 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 134 | |
| 135 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 136 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 137 | try { |
| 138 | let x = 'middle'; |
| 139 | { |
| 140 | let x = 'inner'; |
| 141 | throw 0; |
| 142 | } |
| 143 | } catch (e) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 144 | assertEquals('outer', eval('x')); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 145 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 146 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 147 | |
| 148 | |
| 149 | try { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 150 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 151 | try { |
| 152 | let x = 'inner'; |
| 153 | throw 0; |
| 154 | } finally { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 155 | assertEquals('outer', eval('x')); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 156 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 157 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 158 | } catch (e) { |
| 159 | if (e instanceof MjsUnitAssertionError) throw e; |
| 160 | } |
| 161 | |
| 162 | |
| 163 | try { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 164 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 165 | try { |
| 166 | let x = 'middle'; |
| 167 | { |
| 168 | let x = 'inner'; |
| 169 | throw 0; |
| 170 | } |
| 171 | } finally { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 172 | assertEquals('outer', eval('x')); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 173 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 174 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 175 | } catch (e) { |
| 176 | if (e instanceof MjsUnitAssertionError) throw e; |
| 177 | } |
| 178 | |
| 179 | |
| 180 | // Verify that the context is correctly set in the stack frame after exiting |
| 181 | // from with. |
| 182 | function f() {} |
| 183 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 184 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 185 | label: { |
| 186 | let x = 'inner'; |
| 187 | break label; |
| 188 | } |
| 189 | f(); // The context could be restored from the stack after the call. |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 190 | assertEquals('outer', eval('x')); |
| 191 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 192 | |
| 193 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 194 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 195 | for (var i = 0; i < 10; ++i) { |
| 196 | let x = 'inner'; |
| 197 | continue; |
| 198 | } |
| 199 | f(); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 200 | assertEquals('outer', eval('x')); |
| 201 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 202 | |
| 203 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 204 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 205 | try { |
| 206 | let x = 'inner'; |
| 207 | throw 0; |
| 208 | } catch (e) { |
| 209 | f(); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 210 | assertEquals('outer', eval('x')); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 211 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 212 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 213 | |
| 214 | |
| 215 | try { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 216 | (function(x) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 217 | try { |
| 218 | let x = 'inner'; |
| 219 | throw 0; |
| 220 | } finally { |
| 221 | f(); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 222 | assertEquals('outer', eval('x')); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 223 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 224 | })('outer'); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 225 | } catch (e) { |
| 226 | if (e instanceof MjsUnitAssertionError) throw e; |
| 227 | } |