C++ (Cpp) rb_const_get_from示例

示例#1

文件： rmutil.c 项目： r-project/BS

/*
    Function:   rm_get_optional_arguments
    Purpose:    Collect optional method arguments via Magick::OptionalMethodArguments
    Notes:      Creates an instance of Magick::OptionalMethodArguments, then yields
                to a block in the context of the instance.
*/
void
rm_get_optional_arguments(VALUE img)
{
  volatile VALUE OptionalMethodArguments;
  volatile VALUE opt_args;
  VALUE argv[1];

  // opt_args = Magick::OptionalMethodArguments.new(img)
  // opt_args.instance_eval { block }
  if (rb_block_given_p())
  {
      OptionalMethodArguments = rb_const_get_from(Module_Magick, rb_intern("OptionalMethodArguments"));
      argv[0] = img;
      opt_args = rb_class_new_instance(1, argv, OptionalMethodArguments);
      (void) rb_obj_instance_eval(0, NULL, opt_args);
  }

  return;
}

示例#2

文件： module_spec.c 项目： AndreMeira/rubinius

static VALUE module_specs_const_get_from(VALUE self, VALUE klass, VALUE val) {
  return rb_const_get_from(klass, SYM2ID(val));
}