Method: YARD::Handlers::Ruby::Legacy::AttributeHandler#process

Defined in:
lib/yard/handlers/ruby/legacy/attribute_handler.rb

#process ⇒ void

This method returns an undefined value.

Main processing callback


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# File 'lib/yard/handlers/ruby/legacy/attribute_handler.rb', line 6

process do
  begin
    attr_type   = statement.tokens.first.text.to_sym
    symbols     = tokval_list statement.tokens[2..-1], :attr, TkTRUE, TkFALSE
    read, write = true, false
  rescue SyntaxError
    raise YARD::Parser::UndocumentableError, attr_type
  end

  # Change read/write based on attr_reader/writer/accessor
  case attr_type
  when :attr
    # In the case of 'attr', the second parameter (if given) isn't a symbol.
    write = symbols.pop if symbols.size == 2
  when :attr_accessor
    write = true
  when :attr_reader
    # change nothing
  when :attr_writer
    read, write = false, true
  end

  # Add all attributes
  symbols.each do |name|
    namespace.attributes[scope][name] = SymbolHash[:read => nil, :write => nil]

    # Show their methods as well
    {:read => name, :write => "#{name}="}.each do |type, meth|
      if (type == :read ? read : write)
        o = MethodObject.new(namespace, meth, scope)
        if type == :write
          o.parameters = [['value', nil]]
          src = "def #{meth}(value)"
          full_src = "#{src}\n  @#{name} = value\nend"
          doc = "Sets the attribute #{name}\n@param value the value to set the attribute #{name} to."
        else
          src = "def #{meth}"
          full_src = "#{src}\n  @#{name}\nend"
          doc = "Returns the value of attribute #{name}"
        end
        o.source ||= full_src
        o.signature ||= src
        register(o)
        o.docstring = doc if o.docstring.blank?(false)

        # Regsiter the object explicitly
        namespace.attributes[scope][name][type] = o
      elsif obj = namespace.children.find {|o| o.name == meth.to_sym && o.scope == scope }
        # register an existing method as attribute
        namespace.attributes[scope][name][type] = obj
      end
    end
  end
end