Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +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 | |
| 28 | // Test that we throw early syntax errors in harmony mode |
| 29 | // when using an immutable binding in an assigment or with |
| 30 | // prefix/postfix decrement/increment operators. |
| 31 | |
| 32 | "use strict"; |
| 33 | |
| 34 | const decls = [ |
| 35 | // Const declaration. |
| 36 | function(use) { return "const c = 1; " + use + ";" }, TypeError, |
| 37 | function(use) { return "const x = 0, c = 1; " + use + ";" }, TypeError, |
| 38 | function(use) { return "const c = 1, x = (" + use + ");" }, TypeError, |
| 39 | function(use) { return use + "; const c = 1;" }, ReferenceError, |
| 40 | function(use) { return use + "; const x = 0, c = 1;" }, ReferenceError, |
| 41 | function(use) { return "const x = (" + use + "), c = 1;" }, ReferenceError, |
| 42 | function(use) { return "const c = (" + use + ");" }, ReferenceError, |
| 43 | |
| 44 | // Function expression. |
| 45 | function(use) { return "(function c() { " + use + "; })();"; }, TypeError, |
| 46 | // TODO(rossberg): Once we have default parameters, test using 'c' there. |
| 47 | |
| 48 | // Class expression. |
| 49 | function(use) { |
| 50 | return "new class c { constructor() { " + use + " } };"; |
| 51 | }, TypeError, |
| 52 | function(use) { |
| 53 | return "(new class c { m() { " + use + " } }).m();"; |
| 54 | }, TypeError, |
| 55 | function(use) { |
| 56 | return "(new class c { get a() { " + use + " } }).a;"; |
| 57 | }, TypeError, |
| 58 | function(use) { |
| 59 | return "(new class c { set a(x) { " + use + " } }).a = 0;"; |
| 60 | }, TypeError, |
| 61 | function(use) { |
| 62 | return "(class c { static m() { " + use + " } }).s();"; |
| 63 | }, TypeError, |
| 64 | function(use) { |
| 65 | return "(class c extends (" + use + ") {});"; |
| 66 | }, ReferenceError, |
| 67 | function(use) { |
| 68 | return "(class c { [" + use + "]() {} });"; |
| 69 | }, ReferenceError, |
| 70 | function(use) { |
| 71 | return "(class c { get [" + use + "]() {} });"; |
| 72 | }, ReferenceError, |
| 73 | function(use) { |
| 74 | return "(class c { set [" + use + "](x) {} });"; |
| 75 | }, ReferenceError, |
| 76 | function(use) { |
| 77 | return "(class c { static [" + use + "]() {} });"; |
| 78 | }, ReferenceError, |
| 79 | |
| 80 | // For loop. |
| 81 | function(use) { |
| 82 | return "for (const c = 0; " + use + ";) {}" |
| 83 | }, TypeError, |
| 84 | function(use) { |
| 85 | return "for (const x = 0, c = 0; " + use + ";) {}" |
| 86 | }, TypeError, |
| 87 | function(use) { |
| 88 | return "for (const c = 0; ; " + use + ") {}" |
| 89 | }, TypeError, |
| 90 | function(use) { |
| 91 | return "for (const x = 0, c = 0; ; " + use + ") {}" |
| 92 | }, TypeError, |
| 93 | function(use) { |
| 94 | return "for (const c = 0; ;) { " + use + "; }" |
| 95 | }, TypeError, |
| 96 | function(use) { |
| 97 | return "for (const x = 0, c = 0; ;) { " + use + "; }" |
| 98 | }, TypeError, |
| 99 | function(use) { |
| 100 | return "for (const c in {a: 1}) { " + use + "; }" |
| 101 | }, TypeError, |
| 102 | function(use) { |
| 103 | return "for (const c of [1]) { " + use + "; }" |
| 104 | }, TypeError, |
| 105 | function(use) { |
| 106 | return "for (const x = (" + use + "), c = 0; ;) {}" |
| 107 | }, ReferenceError, |
| 108 | function(use) { |
| 109 | return "for (const c = (" + use + "); ;) {}" |
| 110 | }, ReferenceError, |
| 111 | ] |
| 112 | |
| 113 | let uses = [ |
| 114 | 'c = 1', |
| 115 | 'c += 1', |
| 116 | '++c', |
| 117 | 'c--', |
| 118 | ]; |
| 119 | |
| 120 | let declcontexts = [ |
| 121 | function(decl) { return decl; }, |
| 122 | function(decl) { return "eval(\'" + decl + "\')"; }, |
| 123 | function(decl) { return "{ " + decl + " }"; }, |
| 124 | function(decl) { return "(function() { " + decl + " })()"; }, |
| 125 | ]; |
| 126 | |
| 127 | let usecontexts = [ |
| 128 | function(use) { return use; }, |
| 129 | function(use) { return "eval(\"" + use + "\")"; }, |
| 130 | function(use) { return "(function() { " + use + " })()"; }, |
| 131 | function(use) { return "(function() { eval(\"" + use + "\"); })()"; }, |
| 132 | function(use) { return "eval(\"(function() { " + use + "; })\")()"; }, |
| 133 | ]; |
| 134 | |
| 135 | function Test(program, error) { |
| 136 | program = "'use strict'; " + program; |
| 137 | try { |
| 138 | print(program, " // throw " + error.name); |
| 139 | eval(program); |
| 140 | } catch (e) { |
| 141 | assertInstanceof(e, error); |
| 142 | if (e === TypeError) { |
| 143 | assertTrue(e.toString().indexOf("Assignment to constant variable") >= 0); |
| 144 | } |
| 145 | return; |
| 146 | } |
| 147 | assertUnreachable(); |
| 148 | } |
| 149 | |
| 150 | for (var d = 0; d < decls.length; d += 2) { |
| 151 | for (var u = 0; u < uses.length; ++u) { |
| 152 | for (var o = 0; o < declcontexts.length; ++o) { |
| 153 | for (var i = 0; i < usecontexts.length; ++i) { |
| 154 | Test(declcontexts[o](decls[d](usecontexts[i](uses[u]))), decls[d + 1]); |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | } |