/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file parameterRemapThis.cxx
 * @author drose
 * @date 2000-08-02
 */

#include "parameterRemapThis.h"
#include "typeManager.h"

#include "cppType.h"
#include "cppSimpleType.h"
#include "cppPointerType.h"
#include "cppConstType.h"

/**
 *
 */
ParameterRemapThis::
ParameterRemapThis(CPPType *type, bool is_const) :
  ParameterRemap(TypeManager::get_void_type())
{
  if (is_const) {
    _new_type = TypeManager::wrap_const_pointer(type);
  } else {
    _new_type = TypeManager::wrap_pointer(type);
  }
  _orig_type = _new_type;
}

/**
 * Outputs an expression that converts the indicated variable from the new
 * type to the original type, for passing into the actual C++ function.
 */
void ParameterRemapThis::
pass_parameter(std::ostream &out, const std::string &variable_name) {
  out << "(*" << variable_name << ")";
}

/**
 * Returns an expression that evalutes to the appropriate value type for
 * returning from the function, given an expression of the original type.
 */
std::string ParameterRemapThis::
get_return_expr(const std::string &) {
  return "**invalid**";
}

/**
 * Returns true if this is the "this" parameter.
 */
bool ParameterRemapThis::
is_this() {
  return true;
}