michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public michael@0: * License, v. 2.0. If a copy of the MPL was not distributed with this michael@0: * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ michael@0: michael@0: michael@0: /** michael@0: File Name: expression-001.js michael@0: Corresponds to: ecma/Expressions/11.12-2-n.js michael@0: ECMA Section: 11.12 michael@0: Description: michael@0: michael@0: The grammar for a ConditionalExpression in ECMAScript is a little bit michael@0: different from that in C and Java, which each allow the second michael@0: subexpression to be an Expression but restrict the third expression to michael@0: be a ConditionalExpression. The motivation for this difference in michael@0: ECMAScript is to allow an assignment expression to be governed by either michael@0: arm of a conditional and to eliminate the confusing and fairly useless michael@0: case of a comma expression as the center expression. michael@0: michael@0: Author: christine@netscape.com michael@0: Date: 09 september 1998 michael@0: */ michael@0: var SECTION = "expression-001"; michael@0: var VERSION = "JS1_4"; michael@0: var TITLE = "Conditional operator ( ? : )" michael@0: startTest(); michael@0: writeHeaderToLog( SECTION + " " + TITLE ); michael@0: michael@0: // the following expression should be an error in JS. michael@0: michael@0: var result = "Failed" michael@0: var exception = "No exception was thrown"; michael@0: michael@0: try { michael@0: eval("var MY_VAR = true ? \"EXPR1\", \"EXPR2\" : \"EXPR3\""); michael@0: } catch ( e ) { michael@0: result = "Passed"; michael@0: exception = e.toString(); michael@0: } michael@0: michael@0: new TestCase( michael@0: SECTION, michael@0: "comma expression in a conditional statement "+ michael@0: "(threw "+ exception +")", michael@0: "Passed", michael@0: result ); michael@0: michael@0: michael@0: test();