var curry, flip, fix, apply;
curry = function(f){
  return curry$(f);
};
flip = curry$(function(f, x, y){
  return f(y, x);
});
fix = function(f){
  return function(g, x){
    return function(){
      return f(g(g)).apply(null, arguments);
    };
  }(function(g, x){
    return function(){
      return f(g(g)).apply(null, arguments);
    };
  });
};
apply = curry$(function(f, list){
  return f.apply(null, list);
});
module.exports = {
  curry: curry,
  flip: flip,
  fix: fix,
  apply: apply
};
function curry$(f, bound){
  var context,
  _curry = function(args) {
    return f.length > 1 ? function(){
      var params = args ? args.concat() : [];
      context = bound ? context || this : this;
      return params.push.apply(params, arguments) <
          f.length && arguments.length ?
        _curry.call(context, params) : f.apply(context, params);
    } : f;
  };
  return _curry();
}