Module: GirFFI::Builder::OutArgument

Defined in:
lib/gir_ffi/builder/argument.rb

Overview

Implements argument processing for arguments with direction :out.

Class Method Summary collapse

Class Method Details

.build(var_gen, arginfo, libmodule) ⇒ Object 



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# File 'lib/gir_ffi/builder/argument.rb', line 120

def self.build var_gen, arginfo, libmodule
  type = arginfo.argument_type
  klass = case type.tag
          when :interface
            case type.interface.info_type
            when :enum, :flags
              EnumOutArgument
            else
              if arginfo.caller_allocates?
                AllocatedInterfaceOutArgument
              else
                InterfaceOutArgument
              end
            end
          when :array
            if type.zero_terminated?
              InterfaceOutArgument
            else
              case type.array_type
              when :c
                CArrayOutArgument
              when :array
                it = PointerLikeOutArgument.new var_gen, arginfo.name, type
                it.extend WithTypedContainerPostMethod
                return it
              end
            end
          when :glist, :gslist
            it = PointerLikeOutArgument.new var_gen, arginfo.name, type
            it.extend WithTypedContainerPostMethod
            return it
          when :ghash
            it = PointerLikeOutArgument.new var_gen, arginfo.name, type
            it.extend WithTypedContainerPostMethod
            return it
          else
            RegularOutArgument
          end
  klass.new var_gen, arginfo.name, type
end