Contents

# frozen_string_literal: true

module GirFFI
  module InfoExt
    # Extensions for GObjectIntrospection::ISignalInfo needed by GirFFI
    module ISignalInfo
      # Create a signal hander closure. Wraps the given block in a custom
      # descendent of RubyClosure with a marshaller tailored for this signal.
      #
      # @param  block   The body of the signal handler
      #
      # @return [GObject::RubyClosure]  The signal handler closure, ready to be
      #                                 passed as a GClosure to C.
      def wrap_in_closure(&block)
        bldr = Builders::SignalClosureBuilder.new(self)
        bldr.build_class.new(&block)
      end

      def arguments_to_gvalues(instance, arguments)
        arg_g_values = argument_types.zip(arguments).map do |type, arg|
          type.make_g_value.tap { |it| it.set_value arg }
        end

        arg_g_values.unshift GObject::Value.wrap_instance(instance)
      end

      def gvalue_for_return_value
        return_type.make_g_value
      end

      def argument_types
        @argument_types ||= args.map(&:argument_type)
      end
    end
  end
end

GObjectIntrospection::ISignalInfo.include GirFFI::InfoExt::ISignalInfo

Version data entries

10 entries across 10 versions & 1 rubygems

Version	Path
gir_ffi-0.15.9	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.8	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.7	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.6	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.5	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.4	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.3	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.2	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.1	lib/gir_ffi/info_ext/i_signal_info.rb
gir_ffi-0.15.0	lib/gir_ffi/info_ext/i_signal_info.rb