73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
|
/**
|
||
|
|
* 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 parameterRemap.h
|
||
|
|
* @author drose
|
||
|
|
* @date 2000-08-01
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef PARAMETERREMAP_H
|
||
|
|
#define PARAMETERREMAP_H
|
||
|
|
|
||
|
|
#include "dtoolbase.h"
|
||
|
|
|
||
|
|
#include "interrogate_interface.h"
|
||
|
|
|
||
|
|
class CPPType;
|
||
|
|
class CPPExpression;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* An abstract base class for a number of different kinds of ways to remap
|
||
|
|
* parameters for passing to wrapper functions.
|
||
|
|
*
|
||
|
|
* Certain kinds of function parameters that are legal in C++ (for instance,
|
||
|
|
* passing by reference, or passing structures as concrete values) are not
|
||
|
|
* legal for a typical scripting language. We map these types of parameters
|
||
|
|
* to something equivalent (for instance, a reference becomes a pointer).
|
||
|
|
*
|
||
|
|
* For each kind of possible remapping, we define a class derived from
|
||
|
|
* ParameterRemap that defines the exact nature of the remap.
|
||
|
|
*/
|
||
|
|
class ParameterRemap {
|
||
|
|
public:
|
||
|
|
INLINE ParameterRemap(CPPType *orig_type);
|
||
|
|
virtual ~ParameterRemap();
|
||
|
|
|
||
|
|
INLINE bool is_valid() const;
|
||
|
|
|
||
|
|
INLINE CPPType *get_orig_type() const;
|
||
|
|
INLINE CPPType *get_new_type() const;
|
||
|
|
INLINE CPPType *get_temporary_type() const;
|
||
|
|
INLINE bool has_default_value() const;
|
||
|
|
INLINE CPPExpression *get_default_value() const;
|
||
|
|
INLINE void set_default_value(CPPExpression *expr);
|
||
|
|
|
||
|
|
virtual void pass_parameter(std::ostream &out, const std::string &variable_name);
|
||
|
|
virtual std::string prepare_return_expr(std::ostream &out, int indent_level,
|
||
|
|
const std::string &expression);
|
||
|
|
virtual std::string get_return_expr(const std::string &expression);
|
||
|
|
virtual std::string temporary_to_return(const std::string &temporary);
|
||
|
|
virtual bool return_value_needs_management();
|
||
|
|
virtual FunctionIndex get_return_value_destructor();
|
||
|
|
virtual bool return_value_should_be_simple();
|
||
|
|
virtual bool new_type_is_atomic_string();
|
||
|
|
virtual bool is_this();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
bool _is_valid;
|
||
|
|
|
||
|
|
CPPType *_orig_type;
|
||
|
|
CPPType *_new_type;
|
||
|
|
CPPType *_temporary_type;
|
||
|
|
CPPExpression *_default_value;
|
||
|
|
};
|
||
|
|
|
||
|
|
#include "parameterRemap.I"
|
||
|
|
|
||
|
|
#endif
|