Began Interface development
parent
1e2e73c9f0
commit
b294f84481
13
lib/class.js
13
lib/class.js
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@ -22,17 +22,8 @@
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* @package core
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*/
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var propCopy = require( './util' ).propCopy;
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/**
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* Whether the Object.freeze() method is available
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* @var {boolean}
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*/
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var can_freeze = ( Object.seal === undefined )
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? false
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: true
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;
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var propCopy = require( './util' ).propCopy,
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can_freeze = require( './util' ).canFreeze();
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/**
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@ -0,0 +1,64 @@
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/**
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* Contains interface module
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*
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* Copyright (C) 2010 Mike Gerwitz
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*
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* This file is part of ease.js.
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*
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* ease.js is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Mike Gerwitz
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* @package core
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*/
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var can_freeze = require( './util' ).canFreeze();
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/**
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* Creates an interface
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*
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* @return {Interface} extended interface
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*/
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exports.extend = function()
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{
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return extend.apply( this, arguments );
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}
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/**
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* Default interface implementation
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*
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* @return {undefined}
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*/
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function Interface() {}
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function extend()
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{
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var args = Array.prototype.slice.call( arguments ),
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props = args.pop() || {},
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base = args.pop() || Interface,
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prototype = new base();
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var new_interface = {};
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// freeze the interface (preventing additions) if supported
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if ( can_freeze )
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{
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Object.freeze( new_interface );
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}
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return new_interface;
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}
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14
lib/util.js
14
lib/util.js
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@ -33,6 +33,20 @@ var getset = ( Object.prototype.__defineGetter__ === undefined )
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;
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/**
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* Whether the Object.freeze() method is available
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*
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* @return {boolean}
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*/
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exports.canFreeze = function()
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{
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return ( Object.seal === undefined )
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? false
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: true
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;
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}
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/**
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* Copies properties to the destination object
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*
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@ -0,0 +1,46 @@
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/**
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* Tests interfaces
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*
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* Copyright (C) 2010 Mike Gerwitz
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*
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* This file is part of ease.js.
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*
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* ease.js is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Mike Gerwitz
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* @package test
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*/
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require( './common' );
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var assert = require( 'assert' ),
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Class = require( 'class' ),
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Interface = require( 'interface' );
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var FooType = Interface.extend(
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{
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foo: function( foo, bar ) {},
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});
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assert.ok(
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( FooType instanceof Object ),
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"Interface extend method creates a new object"
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);
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assert.equal(
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Object.isFrozen( FooType ),
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true,
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"Generated interface object should be frozen"
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);
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