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// TODO(ES6): properly activate extended mode 34"use strict"; 35 36 37// Function local const. 38function constDecl0(use) { 39 return "(function() { const constvar = 1; " + use + "; });"; 40} 41 42 43function constDecl1(use) { 44 return "(function() { " + use + "; const constvar = 1; });"; 45} 46 47 48// Function local const, assign from eval. 49function constDecl2(use) { 50 use = "eval('(function() { " + use + " })')"; 51 return "(function() { const constvar = 1; " + use + "; })();"; 52} 53 54 55function constDecl3(use) { 56 use = "eval('(function() { " + use + " })')"; 57 return "(function() { " + use + "; const constvar = 1; })();"; 58} 59 60 61// Block local const. 62function constDecl4(use) { 63 return "(function() { { const constvar = 1; " + use + "; } });"; 64} 65 66 67function constDecl5(use) { 68 return "(function() { { " + use + "; const constvar = 1; } });"; 69} 70 71 72// Block local const, assign from eval. 73function constDecl6(use) { 74 use = "eval('(function() {" + use + "})')"; 75 return "(function() { { const constvar = 1; " + use + "; } })();"; 76} 77 78 79function constDecl7(use) { 80 use = "eval('(function() {" + use + "})')"; 81 return "(function() { { " + use + "; const constvar = 1; } })();"; 82} 83 84 85// Function expression name. 86function constDecl8(use) { 87 return "(function constvar() { " + use + "; });"; 88} 89 90 91// Function expression name, assign from eval. 92function constDecl9(use) { 93 use = "eval('(function(){" + use + "})')"; 94 return "(function constvar() { " + use + "; })();"; 95} 96 97let decls = [ constDecl0, 98 constDecl1, 99 constDecl2, 100 constDecl3, 101 constDecl4, 102 constDecl5, 103 constDecl6, 104 constDecl7, 105 constDecl8, 106 constDecl9 107 ]; 108let uses = [ 'constvar = 1;', 109 'constvar += 1;', 110 '++constvar;', 111 'constvar++;' 112 ]; 113 114function Test(d,u) { 115 'use strict'; 116 try { 117 print(d(u)); 118 eval(d(u)); 119 } catch (e) { 120 assertInstanceof(e, SyntaxError); 121 assertTrue(e.toString().indexOf("Assignment to constant variable") >= 0); 122 return; 123 } 124 assertUnreachable(); 125} 126 127for (var d = 0; d < decls.length; ++d) { 128 for (var u = 0; u < uses.length; ++u) { 129 Test(decls[d], uses[u]); 130 } 131} 132