text: 'use strict';
  
  /*!
   * Module dependencies.
   */
  
  const SchemaType = require('../schematype');
  const castBoolean = require('../cast/boolean');
  const utils = require('../utils');
  
  /**
   * Boolean SchemaType constructor.
   *
   * @param {String} path
   * @param {Object} options
   * @inherits SchemaType
   * @api public
   */
  
  function SchemaBoolean(path, options) {
    SchemaType.call(this, path, options, 'Boolean');
  }
  
  /**
   * This schema type's name, to defend against minifiers that mangle
   * function names.
   *
   * @api public
   */
  SchemaBoolean.schemaName = 'Boolean';
  
  /*!
   * Inherits from SchemaType.
   */
  SchemaBoolean.prototype = Object.create(SchemaType.prototype);
  SchemaBoolean.prototype.constructor = SchemaBoolean;
  
  /**
   * Check if the given value satisfies a required validator. For a boolean
   * to satisfy a required validator, it must be strictly equal to true or to
   * false.
   *
   * @param {Any} value
   * @return {Boolean}
   * @api public
   */
  
  SchemaBoolean.prototype.checkRequired = function(value) {
    return value === true || value === false;
  };
  
  /**
   * Configure which values get casted to `true`.
   *
   * ####Example:
   *
   *     const M = mongoose.model('Test', new Schema({ b: Boolean }));
   *     new M({ b: 'affirmative' }).b; // undefined
   *     mongoose.Schema.Boolean.convertToTrue.add('affirmative');
   *     new M({ b: 'affirmative' }).b; // true
   *
   * @property convertToTrue
   * @type Set
   * @api public
   */
  
  Object.defineProperty(SchemaBoolean, 'convertToTrue', {
    get: () => castBoolean.convertToTrue,
    set: v => { castBoolean.convertToTrue = v; }
  });
  
  /**
   * Configure which values get casted to `false`.
   *
   * ####Example:
   *
   *     const M = mongoose.model('Test', new Schema({ b: Boolean }));
   *     new M({ b: 'nay' }).b; // undefined
   *     mongoose.Schema.Types.Boolean.convertToFalse.add('nay');
   *     new M({ b: 'nay' }).b; // false
   *
   * @property convertToFalse
   * @type Set
   * @api public
   */
  
  Object.defineProperty(SchemaBoolean, 'convertToFalse', {
    get: () => castBoolean.convertToFalse,
    set: v => { castBoolean.convertToFalse = v; }
  });
  
  /**
   * Casts to boolean
   *
   * @param {Object} value
   * @param {Object} model - this value is optional
   * @api private
   */
  
  SchemaBoolean.prototype.cast = function(value) {
    return castBoolean(value, this.path);
  };
  
  SchemaBoolean.$conditionalHandlers =
      utils.options(SchemaType.prototype.$conditionalHandlers, {});
  
  /**
   * Casts contents for queries.
   *
   * @param {String} $conditional
   * @param {any} val
   * @api private
   */
  
  SchemaBoolean.prototype.castForQuery = function($conditional, val) {
    var handler;
    if (arguments.length === 2) {
      handler = SchemaBoolean.$conditionalHandlers[$conditional];
  
      if (handler) {
        return handler.call(this, val);
      }
  
      return this._castForQuery(val);
    }
  
    return this._castForQuery($conditional);
  };
  
  /*!
   * Module exports.
   */
  
  module.exports = SchemaBoolean;
  