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// natDebug -- C++ side of Debug

/* Copyright (C) 2004  Free Software Foundation

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the

Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for

details.  */

#include <config.h>

#include <stddef.h>

#include <gcj/cni.h>

#include <gcj/field.h>

#include <gcj/javaprims.h>

#include <java/lang/reflect/Field.h>

#include <java/lang/Class.h>

#include <java/lang/Byte.h>

#include <java/lang/Short.h>

#include <java/lang/Integer.h>

#include <java/lang/Long.h>

#include <java/lang/Float.h>

#include <java/lang/Double.h>

#include <java/lang/Boolean.h>

#include <java/lang/Character.h>

#include <java/lang/IllegalArgumentException.h>

#include <gnu/gcj/util/Debug.h>

jlong

gnu::gcj::util::Debug::getAddr (::java::lang::Object *o)

{

  return (jlong)(size_t)o;

}

JArray< ::java::lang::reflect::Field *> *

gnu::gcj::util::Debug::getDeclaredFields (::java::lang::Class *c)

{

  return c->getDeclaredFields (false);

}

static void *

getField (::java::lang::Object *obj,

          ::java::lang::reflect::Field *field)

{

  using namespace java::lang::reflect;

  jfieldID fld = _Jv_FromReflectedField (field);

  _Jv_ushort flags = fld->getModifiers();

  if (flags & Modifier::STATIC)

    {

      jclass fldClass = field->getDeclaringClass ();

      JvInitClass(fldClass);

      return (void*) fld->u.addr;

    }

  else

    {

      return (void*) ((char*) obj + fld->getOffset ());

    }

}

::java::lang::Object *

gnu::gcj::util::Debug::getField (::java::lang::Object *o,

                                   ::java::lang::reflect::Field *field)

{

  void *addr = ::getField (o, field);

  jclass type = field->getType();

  if (! type->isPrimitive ())

    return * (jobject*) addr;

  if (type == JvPrimClass (double))

    return new ::java::lang::Double (* (jdouble*) addr);

  if (type == JvPrimClass (float))

    return new ::java::lang::Float (* (jfloat*) addr);

  if (type == JvPrimClass (long))

    return new ::java::lang::Long (* (jlong*) addr);

  if (type == JvPrimClass (int))

    return new ::java::lang::Integer (* (jint*) addr);

  if (type == JvPrimClass (short))

    return new ::java::lang::Short (* (jshort*) addr);

  if (type == JvPrimClass (byte))

    return new ::java::lang::Byte (* (jbyte*) addr);

  if (type == JvPrimClass (char))

    return new ::java::lang::Character (* (jchar*) addr);

  if (type == JvPrimClass (boolean))

    {

      _Jv_InitClass (&::java::lang::Boolean::class$);

      if (* (jboolean*) addr)

        return ::java::lang::Boolean::TRUE;

      else

        return ::java::lang::Boolean::FALSE;

    }

  throw new ::java::lang::IllegalArgumentException;

}

/* A simple method of printing an object that can be called from a

   debugger.  */

extern "C"

void

_Jv_Debug (void *p)

{

  (new ::gnu::gcj::util::Debug ())->write ((jobject)p);

}

extern "C"

void

_Jv_DeepDebug (void *p, int depth)

{

  (new ::gnu::gcj::util::Debug (depth))->write ((jobject)p);

}

extern "C"

void

_Jv_StaticDeepDebug (void *p, int depth)

{

  (new ::gnu::gcj::util::Debug (depth, true))->write ((jobject)p);

}