jscs/lib/rules/require-space-after-keywords.js

JavaScript Style Checker

var assert = require('assert');

module.exports = function() {};

module.exports.prototype = {

    configure: function(keywords) {
        assert(Array.isArray(keywords), 'requireSpaceAfterKeywords option requires array value');
        this._keywordIndex = {};
        for (var i = 0, l = keywords.length; i < l; i++) {
            this._keywordIndex[keywords[i]] = true;
        }
    },

    getOptionName: function () {
        return 'requireSpaceAfterKeywords';
    },

    check: function(file, errors) {
        var keywordIndex = this._keywordIndex;
        var tokens = file.getTokens();
        for (var i = 0, l = tokens.length; i < l; i++) {
            var token = tokens[i];
            if (token.type === 'Keyword' && keywordIndex[token.value]) {
                var nextToken = tokens[i + 1];
                if (nextToken && nextToken.range[0] === token.range[1]) {
                    if (nextToken.type !== 'Punctuator' || nextToken.value !== ';') {
                        errors.add(
                            'Missing space after `' + token.value + '` keyword',
                            nextToken.loc.start.line,
                            nextToken.loc.start.column
                        );
                    }
                }
            }
        }
    }

};