/*************************************************************************/
/*                                                                       */
/*                  Language Technologies Institute                      */
/*                     Carnegie Mellon University                        */
/*                        Copyright (c) 1999                             */
/*                        All Rights Reserved.                           */
/*                                                                       */
/*  Permission is hereby granted, free of charge, to use and distribute  */
/*  this software and its documentation without restriction, including   */
/*  without limitation the rights to use, copy, modify, merge, publish,  */
/*  distribute, sublicense, and/or sell copies of this work, and to      */
/*  permit persons to whom this work is furnished to do so, subject to   */
/*  the following conditions:                                            */
/*   1. The code must retain the above copyright notice, this list of    */
/*      conditions and the following disclaimer.                         */
/*   2. Any modifications must be clearly marked as such.                */
/*   3. Original authors' names are not deleted.                         */
/*   4. The authors' names are not used to endorse or promote products   */
/*      derived from this software without specific prior written        */
/*      permission.                                                      */
/*                                                                       */
/*  CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK         */
/*  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      */
/*  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   */
/*  SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE      */
/*  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    */
/*  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   */
/*  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          */
/*  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       */
/*  THIS SOFTWARE.                                                       */
/*                                                                       */
/*************************************************************************/
/*             Author:  Alan W Black (awb@cs.cmu.edu)                    */
/*               Date:  December 1999                                    */
/*************************************************************************/
/*                                                                       */
/*  Macros for user defined type objects                                 */
/*                                                                       */
/*************************************************************************/
#ifndef _CST_VAL_DEFS_H__
#define _CST_VAL_DEFS_H__

#include <stdlib.h>

/* Macro for defining new user structs as vals  */
#define CST_VAL_USER_TYPE_DCLS(NAME,TYPE)              \
extern const int cst_val_type_##NAME;                  \
TYPE *val_##NAME(const cst_val *v);           \
cst_val *NAME##_val(const TYPE *v);

#define CST_VAL_USER_FUNCPTR_DCLS(NAME,TYPE)           \
extern const int cst_val_type_##NAME;                  \
TYPE val_##NAME(const cst_val *v);            \
cst_val *NAME##_val(const TYPE v);

#define CST_VAL_REGISTER_TYPE(NAME,TYPE)               \
TYPE *val_##NAME(const cst_val *v)                     \
{                                                      \
    if (v && CST_VAL_TYPE(v) == cst_val_type_##NAME)   \
	return (TYPE *)CST_VAL_VOID(v);                \
    else                                               \
    {                                                  \
        cst_errmsg("VAL: tried to access %s in %d type val\n", \
                       #NAME,                          \
                       (v ? CST_VAL_TYPE(v) : -1));    \
        cst_error();                                   \
    }                                                  \
    return NULL;                                       \
}                                                      \
void val_delete_##NAME(void *v)                        \
{                                                      \
    delete_##NAME((TYPE *)v);                          \
}                                                      \
                                                       \
cst_val *NAME##_val(const TYPE *v)                     \
{                                                      \
    return val_new_typed(cst_val_type_##NAME,          \
 		         (void *)v);                   \
}                                                      \

#define CST_VAL_REG_TD_TYPE(NAME,TYPE,NUM)             \
extern const int cst_val_type_##NAME;                  \
const int cst_val_type_##NAME=NUM;                     \
void val_delete_##NAME(void *v);                       \

/* When objects of this type can never be owned by vals */
#define CST_VAL_REGISTER_TYPE_NODEL(NAME,TYPE)         \
TYPE *val_##NAME(const cst_val *v)                     \
{                                                      \
    if (v && CST_VAL_TYPE(v) == cst_val_type_##NAME)   \
	return (TYPE *)CST_VAL_VOID(v);                \
    else                                               \
    {                                                  \
        cst_errmsg("VAL: tried to access %s in %d type val\n", \
                       #NAME,                          \
                       (v ? CST_VAL_TYPE(v) : -1));    \
        cst_error();                                   \
    }                                                  \
    return NULL;                                       \
}                                                      \
                                                       \
cst_val *NAME##_val(const TYPE *v)                     \
{                                                      \
    return val_new_typed(cst_val_type_##NAME,          \
 		         (void *)v);                   \
}                                                      \

#define CST_VAL_REG_TD_TYPE_NODEL(NAME,TYPE,NUM)       \
extern const int cst_val_type_##NAME;                  \
const int cst_val_type_##NAME=NUM;                     \
void val_delete_##NAME(void *v) { (void)v; }           \

#define CST_VAL_REGISTER_FUNCPTR(NAME,TYPE)            \
TYPE val_##NAME(const cst_val *v)                      \
{                                                      \
    if (v && CST_VAL_TYPE(v) == cst_val_type_##NAME)   \
	return (TYPE)CST_VAL_VOID(v);                  \
    else                                               \
    {                                                  \
        cst_errmsg("VAL: tried to access %s in %d type val\n", \
                       #NAME,                          \
                       (v ? CST_VAL_TYPE(v) : -1));    \
        cst_error();                                   \
    }                                                  \
    return NULL;                                       \
}                                                      \
                                                       \
cst_val *NAME##_val(const TYPE v)                      \
{                                                      \
    return val_new_typed(cst_val_type_##NAME,          \
 		         (void *)v);                   \
}                                                      \

#define CST_VAL_REG_TD_FUNCPTR(NAME,TYPE,NUM)          \
extern const int cst_val_type_##NAME;                  \
const int cst_val_type_##NAME=NUM;                     \
void val_delete_##NAME(void *v) { (void)v; }           \

#endif
