Class: GObjectIntrospection::Loader::Invoker

Inherits:
Object
  • Object
show all
Defined in:
lib/gobject-introspection/loader.rb

Instance Method Summary collapse

Constructor Details

#initialize(info, method_name, full_method_name) ⇒ Invoker

Returns a new instance of Invoker.



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# File 'lib/gobject-introspection/loader.rb', line 568

def initialize(info, method_name, full_method_name)
  @info = info
  @method_name = method_name
  @full_method_name = full_method_name
  @prepared = false
end

Instance Method Details

#invoke(receiver, arguments, block, abort_tag = nil) ⇒ Object 



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# File 'lib/gobject-introspection/loader.rb', line 575

def invoke(receiver, arguments, block, abort_tag=nil)
  ensure_prepared

  if receiver and @function_info_p
    arguments.unshift(receiver)
  end

  arguments, block = build(receiver, arguments, block)
  if wrong_number_of_arguments?(arguments)
    if abort_tag
      throw(abort_tag)
    else
      raise ArgumentError, invalid_error_message(arguments)
    end
  end
  unless normalize_arguments!(arguments, abort_tag)
    return @value_on_invalid
  end

  if block.nil? and @require_callback_p
    receiver.to_enum(@method_name, *arguments)
  else
    if @function_info_p
      return_value = @info.invoke(arguments, &block)
    else
      return_value = @info.invoke(receiver, arguments, &block)
    end
    if @have_return_value_p
      return_value
    else
      receiver
    end
  end
end

#signature ⇒ Object 



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# File 'lib/gobject-introspection/loader.rb', line 610

def signature
  ensure_prepared
  argument_signatures = @in_args.collect(&:signature)
  "(" + argument_signatures.join(", ") + ")"
end