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/**
 * Expose `Delegator`.
 */

module.exports = Delegator;

/**
 * Initialize a delegator.
 *
 * @param {Object} proto
 * @param {String} target
 * @api public
 */

function Delegator(proto, target) {
  if (!(this instanceof Delegator)) return new Delegator(proto, target);
  this.proto = proto;
  this.target = target;
  this.methods = [];
  this.getters = [];
  this.setters = [];
  this.fluents = [];
}

/**
 * Delegate method `name`.
 *
 * @param {String} name
 * @return {Delegator} self
 * @api public
 */

Delegator.prototype.method = function(name){
  var proto = this.proto;
  var target = this.target;
  this.methods.push(name);

  proto[name] = function(){
    return this[target][name].apply(this[target], arguments);
  };

  return this;
};

/**
 * Delegator accessor `name`.
 *
 * @param {String} name
 * @return {Delegator} self
 * @api public
 */

Delegator.prototype.access = function(name){
  return this.getter(name).setter(name);
};

/**
 * Delegator getter `name`.
 *
 * @param {String} name
 * @return {Delegator} self
 * @api public
 */

Delegator.prototype.getter = function(name){
  var proto = this.proto;
  var target = this.target;
  this.getters.push(name);

  proto.__defineGetter__(name, function(){
    return this[target][name];
  });

  return this;
};

/**
 * Delegator setter `name`.
 *
 * @param {String} name
 * @return {Delegator} self
 * @api public
 */

Delegator.prototype.setter = function(name){
  var proto = this.proto;
  var target = this.target;
  this.setters.push(name);

  proto.__defineSetter__(name, function(val){
    return this[target][name] = val;
  });

  return this;
};

/**
 * Delegator fluent accessor
 *
 * @param {String} name
 * @return {Delegator} self
 * @api public
 */

Delegator.prototype.fluent = function (name) {
  var proto = this.proto;
  var target = this.target;
  this.fluents.push(name);

  proto[name] = function(val){
    if ('undefined' != typeof val) {
      this[target][name] = val;
      return this;
    } else {
      return this[target][name];
    }
  };

  return this;
};
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