libgo/runtime/go-unreflect.c

   1 /* go-unreflect.c -- implement unsafe.Unreflect for Go.
   2
   3    Copyright 2009 The Go Authors. All rights reserved.
   4    Use of this source code is governed by a BSD-style
   5    license that can be found in the LICENSE file.  */
   6
   7 #include "go-alloc.h"
   8 #include "go-type.h"
   9 #include "interface.h"
  10
  11 /* Implement unsafe.Unreflect.  */
  12
  13 struct __go_empty_interface Unreflect (struct __go_empty_interface type,
  14                                        void *object)
  15   asm ("libgo_unsafe.unsafe.Unreflect");
  16
  17 struct __go_empty_interface
  18 Unreflect (struct __go_empty_interface type, void *object)
  19 {
  20   struct __go_empty_interface ret;
  21
  22   /* FIXME: We should check __type_descriptor to verify that this is
  23      really a type descriptor.  */
  24   ret.__type_descriptor = type.__object;
  25   if (__go_is_pointer_type (ret.__type_descriptor))
  26     ret.__object = *(void **) object;
  27   else
  28     ret.__object = object;
  29   return ret;
  30 }