/** * Tests const keyword * * Copyright (C) 2010 Mike Gerwitz * * This file is part of ease.js. * * ease.js is free software: you can redistribute it and/or modify it under the * terms of the GNU Lesser General Public License as published by the Free * Software Foundation, either version 3 of the License, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see . * * @author Mike Gerwitz * @package test */ var common = require( './common' ), assert = require( 'assert' ), builder = common.require( 'class_builder' ) ; /** * The `const' keyword does not make sense with methods, as they are always * immutable. Methods of a class cannot be redefined after the class definition. * They may only be overridden by subtypes. */ ( function testConstKeywordCannotBeUsedWithMethods() { try { // attempt to create a constant method (should fail) builder.build( { 'const foo': function() {}, } ); } catch ( e ) { assert.ok( e.message.search( 'foo' ) !== -1, "Const method error message should contain name of method" ); return; } assert.fail( "Should not be able to declare constant methods" ); } )(); /** * The const keyword implies static. Using static along with it is redundant and * messy. Disallow it. */ ( function testConstKeywordCannotBeUsedWithStatic() { try { // should fail builder.build( { 'static const foo': 'val', } ); } catch ( e ) { assert.ok( e.message.search( 'foo' ) !== -1, "Static const method error message should contain name of property" ); return; } assert.fail( "Should not be able to use static keyword with const" ); } )();