69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
#ifndef Py_NODE_H
|
|
#define Py_NODE_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/***********************************************************
|
|
Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
|
|
Amsterdam, The Netherlands.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the names of Stichting Mathematisch
|
|
Centrum or CWI not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior permission.
|
|
|
|
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM 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.
|
|
|
|
******************************************************************/
|
|
|
|
/* Parse tree node interface */
|
|
|
|
typedef struct _node {
|
|
int n_type;
|
|
char *n_str;
|
|
int n_lineno;
|
|
int n_nchildren;
|
|
struct _node *n_child;
|
|
} node;
|
|
|
|
extern node *newtree PROTO((int type));
|
|
extern node *addchild PROTO((node *n, int type, char *str, int lineno));
|
|
extern void freetree PROTO((node *n));
|
|
|
|
/* Node access functions */
|
|
#define NCH(n) ((n)->n_nchildren)
|
|
#define CHILD(n, i) (&(n)->n_child[i])
|
|
#define TYPE(n) ((n)->n_type)
|
|
#define STR(n) ((n)->n_str)
|
|
|
|
/* Assert that the type of a node is what we expect */
|
|
#ifndef DEBUG
|
|
#define REQ(n, type) { /*pass*/ ; }
|
|
#else
|
|
#define REQ(n, type) \
|
|
{ if (TYPE(n) != (type)) { \
|
|
fprintf(stderr, "FATAL: node type %d, required %d\n", \
|
|
TYPE(n), type); \
|
|
abort(); \
|
|
} }
|
|
#endif
|
|
|
|
extern void listtree PROTO((node *));
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_NODE_H */
|