Module: GirFFI::Builder::ReturnValueFactory

Defined in:

lib/gir_ffi/builder/argument.rb

Class Method Summary

• .build(var_gen, arginfo) ⇒ Object
• .builder_for(var_gen, name, type, is_constructor) ⇒ Object
• .builder_for_field_getter(var_gen, name, type) ⇒ Object

Class Method Details

.build(var_gen, arginfo) ⇒ Object

# File 'lib/gir_ffi/builder/argument.rb', line 356

def self.build var_gen, arginfo
  builder_for(var_gen,
              arginfo.name,
              arginfo.return_type,
              arginfo.constructor?)
end

.builder_for(var_gen, name, type, is_constructor) ⇒ Object

# File 'lib/gir_ffi/builder/argument.rb', line 363

def self.builder_for var_gen, name, type, is_constructor
  if type.tag == :interface and
    [:interface, :object].include? type.interface.info_type
    klass = if is_constructor
              ConstructorReturnValue
            else
              ObjectReturnValue
            end
    klass.new var_gen, name, type
  else
    builder_for_field_getter var_gen, name, type
  end
end

.builder_for_field_getter(var_gen, name, type) ⇒ Object

# File 'lib/gir_ffi/builder/argument.rb', line 377

def self.builder_for_field_getter var_gen, name, type
  klass = case type.tag
          when :void
            if type.pointer?
              RegularReturnValue
            else
              VoidReturnValue
            end
          when :interface
            case type.interface.info_type
            when :struct, :union, :interface, :object
              InterfaceReturnValue
            else
              RegularReturnValue
            end
          when :array
            if type.zero_terminated?
              StrvReturnValue
            else
              case type.array_type
              when :c
                CArrayReturnValue
              when :array
                it = ReturnValue.new var_gen, name, type
                it.extend WithTypedContainerPostMethod
                return it
              when :byte_array
                ByteArrayReturnValue
              else
                PtrArrayReturnValue
              end
            end
          when :glist, :gslist
            it = ReturnValue.new var_gen, name, type
            it.extend WithTypedContainerPostMethod
            return it
          when :ghash
            it = ReturnValue.new var_gen, name, type
            it.extend WithTypedContainerPostMethod
            return it
          when :utf8
            Utf8ReturnValue
          else
            RegularReturnValue
          end
  klass.new var_gen, name, type
end