Method: O#method_missing

Defined in:
lib/o.rb

#method_missing(name, *args, &blk) ⇒ Object

everything goes here.

.name? 
.name= value 
.name value 
._name

.c 
.a.b.c



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# File 'lib/o.rb', line 232

def method_missing(name, *args, &blk)
  # path: root
  if name == :_
    return _root

  # relative path: __
  elsif name =~ /^__+$/
    num = name.to_s.count('_') - 1
    node = self
    num.times {
      return unless node
      node = node._parent
    }
    return node

  # .name=
  elsif name =~ /(.*)=$/
    return @_child[$1.to_sym] = args[0]

  # ._name
  elsif name =~ /^_(.*)/
    name = $1.to_sym
    args.map!{|arg| O===arg ? arg._child : arg} 
    return @_child.send(name, *args, &blk)

  # .name?
  elsif name =~ /(.*)\?$/
    return !! @_child[$1.to_sym]

  elsif Proc === @_child[name]
    return @_child[name].call *args

  # a.c  # return data if has :c
  # a.c  # create new <#O> if no :c 
  #
  elsif args.empty?

    # a.b.c 1
    # a.b do
    #   c 2
    # end
    if @_child.has_key?(name)
      o = @_child[name]
      o.instance_eval(&blk) if blk
      return o

    else
      next_o = O.new(nil, {_root: _root})
      next_o._parent = self
      self._child[name] = next_o
      next_o.instance_eval(&blk) if blk
      return next_o
    end

  # .name value
  else
    @_child[name] = args[0]
    return args[0]
  end
end