mungedb-aggregate/lib/pipeline/matcher/ListOfMatchExpression.js

"use strict";

var MatchExpression = require('./MatchExpression');

// Autogenerated by cport.py on 2013-09-17 14:37
var ListOfMatchExpression = module.exports = function ListOfMatchExpression(matchType){
	base.call(this);
	this._expressions = [];
	this._matchType = matchType;
}, klass = ListOfMatchExpression, base =  MatchExpression, proto = klass.prototype = Object.create(base.prototype, {constructor:{value:klass}});

// File: expression_tree.h lines: 56-56
proto._expressions = undefined;

/**
 *
 * Print the debug info from each expression in the list
 * @method _debugList
 * @param level
 *
 */
proto._debugList = function _debugList(level){
	// File: expression_tree.cpp lines: 40-42
	for (var i = 0; i < this._expressions.length; i++ )
		this._expressions[i].debugString(level + 1); // debug only takes level now
};

/**
 *
 * Append a new expression to our list
 * @method add
 * @param Expression
 *
 */
proto.add = function add( exp ){
	// File: expression_tree.cpp lines: 34-36
	// verify(expression)
	if(!exp)
		throw new Error(exp + " failed verify on ListOfMatchExpression:34");
	if(this._expressions) {
		this._expressions.push(exp);
	} else {
		this._expressions = [exp];
	}

};

/**
 *
 * Empty us out
 * @method clearAndRelease
 *
 */
proto.clearAndRelease = function clearAndRelease(){
	// File: expression_tree.h lines: 45-44
	this._expressions = []; // empty the expressions
};

/**
 *
 * Check if the input list is considered the same as this one
 * @method equivalent
 * @param other
 *
 */
proto.equivalent = function equivalent(other){
	// File: expression_tree.cpp lines: 45-59
	if (this._matchType != other._matchType)
		return false;

	var realOther = new ListOfMatchExpression(other);

	if (this._expressions.length != realOther._expressions.length)
		return false;

	// TODO: order doesn't matter
	for (var i = 0; i < this._expressions.length; i++ )
		if (!this._expressions[i].equivalent(realOther._expressions[i]))
			return false;

	return true;
};

/**
 *
 * Get an item from the expressions
 * @method getChild
 * @param
 *
 */
proto.getChild = function getChild(i){
	// File: expression_tree.h lines: 48-47
	return this._expressions[i];
};

/**
 *
 * Get the length of the list
 * @method numChildren
 * @param
 *
 */
proto.numChildren = function numChildren(){
	// File: expression_tree.h lines: 47-46
	return this._expressions.length;
};