87 lines
2.2 KiB
JavaScript
87 lines
2.2 KiB
JavaScript
/**
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* Property keyword parser 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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*/
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/**
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* Known (permitted) keywords
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* @type {Object.<string,boolean>}
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*/
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var _keywords = {
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'public': true,
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'protected': true,
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'private': true,
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'static': true,
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'abstract': true,
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'const': true,
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'virtual': true,
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'override': true,
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};
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/**
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* Parses property keywords
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*
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* @param {string} prop property string, which may contain keywords
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*
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* @return {{name: string, keywords: Object.<string, boolean>}}
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*/
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exports.parseKeywords = function ( prop )
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{
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var name = prop,
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keywords = [],
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keyword_obj = {};
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prop = ''+( prop );
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// only perform parsing if the string contains a space
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if ( / /.test( prop ) )
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{
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// the keywords are all words, except for the last, which is the
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// property name
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keywords = prop.split( /\s+/ );
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name = keywords.pop();
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var i = keywords.length,
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keyword = '';
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while ( i-- )
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{
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keyword = keywords[ i ];
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// ensure the keyword is recognized
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if ( !_keywords[ keyword ] )
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{
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throw Error(
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"Unexpected keyword for '" + name + "': " + keyword
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);
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}
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keyword_obj[ keyword ] = true;
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}
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}
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return {
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name: name,
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keywords: keyword_obj,
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};
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}
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