I don't know when it will be used, but just write it out...

misc.coffee

Object::seek = (tree) ->
  tree = tree() if typeof tree is "function"
  tree = tree.split "." if typeof tree is "string"
  tree = [tree] unless tree instanceof Array
  iterate = @
  iterate = iterate[i] for i in tree
  iterate

Object::override = (tree, newStuff, noExec) ->
  tree = tree() if typeof tree is "function"
  tree = tree.split "." if typeof tree is "string"
  tree = [tree] unless tree instanceof Array
  noExec = noExec() if typeof noExec is "function"
  iterate = @
  iterate = iterate[i] for i in tree[0..-2]
  lastFragment = tree[tree.length - 1]
  if not noExec and typeof newStuff is "function"
    original = iterate[lastFragment]
    if typeof original is "function"
      iterate[lastFragment] = ->
        args = Array::slice.call arguments
        args.unshift original
        newStuff.apply @, args
    else
      iterate[lastFragment] = newStuff original
  else
    iterate[lastFragment] = newStuff
  @

Function::wrap = (fn) ->
  original = @
  ->
    args = Array::slice.call arguments
    args.unshift original
    fn.apply @, args

misc.js

Object.prototype.seek = function(tree) {
  if(typeof tree === "function") tree = tree();
  if(typeof tree === "string") tree = tree.split(".");
  if(!(tree instanceof Array)) tree = [tree];
  var iterate = this;
  for(var i = 0; i < tree.length; i++)
    iterate = iterate[tree[i]];
  return iterate;
};

Object.prototype.override = function(tree, newStuff, noExec) {
  if(typeof tree === "function") tree = tree();
  if(typeof tree === "string") tree = tree.split(".");
  if(!(tree instanceof Array)) tree = [tree];
  if(typeof noExec === "function") noExec = noExec();
  var iterate = this;
  for(var i = 0; i < tree.length - 2; i++)
    iterate = iterate[tree[i]];
  var lastFragment = tree[tree.length - 1];
  if(!noExec && typeof newStuff === "function") {
    var original = iterate[lastFragment];
    if(typeof original === "function")
      iterate[lastFragment] = function() {
        var args = Array.prototype.slice.call(arguments);
        args.unshift(original);
        return newStuff.apply(this, args);
      };
    else
      iterate[lastFragment] = newStuff(original);
  } else
    iterate[lastFragment] = newStuff;
  return this;
};
  
Function.prototype.wrap = function(fn) {
  var original = this;
  return function() {
    var args = Array.prototype.slice.call(arguments);
    args.unshift(original);
    return fn.apply(this, args);
  };
};