/*
* @package jscodesniffer
* @author sheiko
* @license MIT
* @copyright (c) Dmitry Sheiko http://www.dsheiko.com
* jscs standard:Jquery
* jshint unused:false
* Code style: http://docs.jquery.com/JQuery_Core_Style_Guidelines
*/
/**
* A module representing a sniffer.
* @module lib/Sniff/SyntaxTree/OperatorSpacing
*/
// UMD boilerplate according to https://github.com/umdjs/umd
if ( typeof module === "object" && typeof define !== "function" ) {
/**
* Override AMD `define` function for RequireJS
* @param {function( function, Object, Object )} factory
*/
var define = function ( factory ) {
module.exports = factory( require, exports, module );
};
}
/**
* @param {function( string )} require
*/
define(function( require ) {
"use strict";
/**
* @type {utilsSniff/Utils}
*/
var utils = require( "../Utils" ),
/**
* @constant
* @type {String}
* @default
*/
NAME = "OperatorSpacing",
/**
* @constructor
* @alias module:lib/Sniff/SyntaxTree/OperatorSpacing
* @param {module:lib/SourceCode} sourceCode
* @param {module:lib/Mediator} mediator
* @param {module:lib/TokenIterator} tokenIterator
*/
Sniff = function( sourceCode, mediator, tokenIterator ) {
/**
* @type {Mixin}
*/
var mixin = utils.Mixin( sourceCode, mediator, NAME );
/** @lends module:lib/Sniff/SyntaxTree/OperatorSpacing.prototype */
return {
/**
* Check the contract
* @access public
* @param {Object} rule
*/
validateRule: function( rule ) {
utils.validateRule( rule, "allowOperatorPrecedingWhitespaces", "number", true );
utils.validateRule( rule, "allowOperatorTrailingWhitespaces", "number", true );
},
/**
* Run the sniffer according a given rule if a given node type matches the case
* @access public
* @param {Object} rule
* @param {Object} node
*/
run: function( rule, node ) {
var tokenIt,
leftBoundary,
rightBoundary;
if ( ( node.type === "VariableDeclarator" ) &&
node.id && node.init ) {
leftBoundary = node.range[ 0 ];
rightBoundary = node.range[ 1 ];
// var id< >= init;
tokenIt = tokenIterator
.findByRightPos( node.id.range[ 1 ] )
.findGroupCloser( rightBoundary );
// id (0), operator (1)
mixin.sniffExcerpt( tokenIt.get( 0 ), tokenIt.get( 1 ),
rule.allowOperatorPrecedingWhitespaces, "OperatorPrecedingWhitespaces", "<" );
// var id =< >init;
tokenIt = tokenIterator
.findByLeftPos( node.init.range[ 0 ] )
.findGroupOpener( leftBoundary );
// operator (-1), init (0)
mixin.sniffExcerpt( tokenIt.get( -1 ), tokenIt.get( 0 ),
rule.allowOperatorPrecedingWhitespaces, "OperatorTrailingWhitespaces", ">" );
}
if ( ( node.type === "AssignmentExpression" || node.type === "BinaryExpression" ) &&
node.left && node.right && node.operator ) {
leftBoundary = node.range[ 0 ];
rightBoundary = node.range[ 1 ];
// left< >operator right
tokenIt = tokenIterator
.findByRightPos( node.left.range[ 1 ] )
.findGroupCloser( rightBoundary );
// left (0), operator (1)
mixin.sniffExcerpt( tokenIt.get( 0 ), tokenIt.get( 1 ),
rule.allowOperatorPrecedingWhitespaces, "OperatorPrecedingWhitespaces", "<" );
// left operator< >right
tokenIt = tokenIterator
.findByLeftPos( node.right.range[ 0 ] )
.findGroupOpener( leftBoundary );
// operator (-1), right (0)
mixin.sniffExcerpt( tokenIt.get( -1 ), tokenIt.get( 0 ),
rule.allowOperatorPrecedingWhitespaces, "OperatorTrailingWhitespaces", ">" );
}
}
};
};
return Sniff;
});