/*

* class ActionCount
*
* This counts the number of times a keyword argument occurs.
* For example, this is useful for increasing verbosity levels
*
* This class inherided from [[Action]]
*
**/

'use strict';

var util = require('util');

var Action = require('../action');

/*

* new ActionCount(options)
* - options (object): options hash see [[Action.new]]
*
**/

var ActionCount = module.exports = function ActionCount(options) {

options = options || {};
options.nargs = 0;

Action.call(this, options);

}; util.inherits(ActionCount, Action);

/*

* ActionCount#call(parser, namespace, values, optionString) -> Void
* - parser (ArgumentParser): current parser
* - namespace (Namespace): namespace for output data
* - values (Array): parsed values
* - optionString (Array): input option string(not parsed)
*
* Call the action. Save result in namespace object
**/

ActionCount.prototype.call = function (parser, namespace) {

namespace.set(this.dest, (namespace[this.dest] || 0) + 1);

};