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// Flags: --harmony-scoping 29 30// Test that we throw early syntax errors in harmony mode 31// when using an immutable binding in an assigment or with 32// prefix/postfix decrement/increment operators. 33 34"use strict"; 35 36// Function local const. 37function constDecl0(use) { 38 return "(function() { const constvar = 1; " + use + "; });"; 39} 40 41 42function constDecl1(use) { 43 return "(function() { " + use + "; const constvar = 1; });"; 44} 45 46 47// Function local const, assign from eval. 48function constDecl2(use) { 49 use = "eval('(function() { " + use + " })')"; 50 return "(function() { const constvar = 1; " + use + "; })();"; 51} 52 53 54function constDecl3(use) { 55 use = "eval('(function() { " + use + " })')"; 56 return "(function() { " + use + "; const constvar = 1; })();"; 57} 58 59 60// Block local const. 61function constDecl4(use) { 62 return "(function() { { const constvar = 1; " + use + "; } });"; 63} 64 65 66function constDecl5(use) { 67 return "(function() { { " + use + "; const constvar = 1; } });"; 68} 69 70 71// Block local const, assign from eval. 72function constDecl6(use) { 73 use = "eval('(function() {" + use + "})')"; 74 return "(function() { { const constvar = 1; " + use + "; } })();"; 75} 76 77 78function constDecl7(use) { 79 use = "eval('(function() {" + use + "})')"; 80 return "(function() { { " + use + "; const constvar = 1; } })();"; 81} 82 83 84// Function expression name. 85function constDecl8(use) { 86 return "(function constvar() { " + use + "; });"; 87} 88 89 90// Function expression name, assign from eval. 91function constDecl9(use) { 92 use = "eval('(function(){" + use + "})')"; 93 return "(function constvar() { " + use + "; })();"; 94} 95 96let decls = [ constDecl0, 97 constDecl1, 98 constDecl2, 99 constDecl3, 100 constDecl4, 101 constDecl5, 102 constDecl6, 103 constDecl7, 104 constDecl8, 105 constDecl9 106 ]; 107let uses = [ 'constvar = 1;', 108 'constvar += 1;', 109 '++constvar;', 110 'constvar++;' 111 ]; 112 113function Test(d,u) { 114 'use strict'; 115 try { 116 print(d(u)); 117 eval(d(u)); 118 } catch (e) { 119 assertInstanceof(e, SyntaxError); 120 assertTrue(e.toString().indexOf("Assignment to constant variable") >= 0); 121 return; 122 } 123 assertUnreachable(); 124} 125 126for (var d = 0; d < decls.length; ++d) { 127 for (var u = 0; u < uses.length; ++u) { 128 Test(decls[d], uses[u]); 129 } 130} 131