class GirFFI::Builders::VFuncBuilder

Implements the creation of a class representing the implementation of a vfunc. This class will be able to turn a proc into an FFI::Function that can serve as such an implementation in C. The class will be namespaced inside class defining the vfunc.

Public Instance Methods

argument_ffi_types() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 50
def argument_ffi_types
  @argument_ffi_types ||= info.argument_ffi_types.
    unshift(receiver_type_info.to_callback_ffi_type)
end
container_class() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 42
def container_class
  @container_class ||= Builder.build_class(container_info)
end
container_info() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 46
def container_info
  @container_info ||= info.container
end
klass() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 20
def klass
  @klass ||= get_or_define_class container_class, @classname, CallbackBase
end
mapping_method_definition() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 24
def mapping_method_definition
  arg_infos = info.args
  arg_infos << ErrorArgumentInfo.new if info.throws?

  receiver_info = ReceiverArgumentInfo.new receiver_type_info
  return_value_info = ReturnValueInfo.new(info.return_type,
                                          info.caller_owns,
                                          info.skip_return?)

  MappingMethodBuilder.for_vfunc(receiver_info,
                                 arg_infos,
                                 return_value_info).method_definition
end
receiver_type_info() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 38
def receiver_type_info
  ReceiverTypeInfo.new(container_info)
end
return_ffi_type() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 55
def return_ffi_type
  @return_ffi_type ||= info.return_ffi_type
end
setup_class() click to toggle source
# File lib/gir_ffi/builders/vfunc_builder.rb, line 15
def setup_class
  setup_constants
  klass.class_eval mapping_method_definition
end