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dtc: Cleanup YYLTYPE and YYLLOC_DEFAULT declarations

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This patch makes some small cleanups to the declaration of YYLTYPE,
YYLLOC_DEFAULT and related things.

	- We used to use undocumented magic #defines for bison,
          YYLTYPE_IS_DECLARED and YYLTYPE_IS_TRIVIAL.  This may not be
          portable across bison versions.  Instead define YYLTYPE as a
          macro in terms of struct srcpos, as the info pages suggest.

	- Our kernel-derived coding style discourages typedefed
          structures.  So use 'struct srcpos' instead of 'srcpos'
          throughout'.

	- Indent the YYLLOC_DEFAULT macro according to our coding
          style (it was in GNU indent style, since it was taken from
          the example in the bison info).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2009-12-08 14:24:42 +11:00 • committed by Jon Loeliger
parent e1fee329e2
commit c6225f86fd
2 changed files with 37 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

70
srcpos.h
View file

@ -20,11 +20,6 @@
#ifndef _SRCPOS_H_
#define _SRCPOS_H_
/*
* Augment the standard YYLTYPE with a filenum index into an
* array of all opened filenames.
*/
#include <stdio.h>
struct srcfile_state {
@ -41,62 +36,49 @@ FILE *srcfile_relative_open(const char *fname, char **fullnamep);
void srcfile_push(const char *fname);
int srcfile_pop(void);
#if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
typedef struct YYLTYPE {
struct srcpos {
int first_line;
int first_column;
int last_line;
int last_column;
struct srcfile_state *file;
} YYLTYPE;
};
#define YYLTYPE_IS_DECLARED 1
#define YYLTYPE_IS_TRIVIAL 1
#endif
#define YYLTYPE struct srcpos
/* Cater to old parser templates. */
#ifndef YYID
#define YYID(n) (n)
#endif
#define YYLLOC_DEFAULT(Current, Rhs, N) \
do { \
if (N) { \
(Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
(Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
(Current).last_line = YYRHSLOC(Rhs, N).last_line; \
(Current).last_column = YYRHSLOC (Rhs, N).last_column; \
(Current).file = YYRHSLOC(Rhs, N).file; \
} else { \
(Current).first_line = (Current).last_line = \
YYRHSLOC(Rhs, 0).last_line; \
(Current).first_column = (Current).last_column = \
YYRHSLOC(Rhs, 0).last_column; \
(Current).file = YYRHSLOC (Rhs, 0).file; \
} \
} while (0)
#define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (YYID (N)) \
{ \
(Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
(Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
(Current).last_line = YYRHSLOC (Rhs, N).last_line; \
(Current).last_column = YYRHSLOC (Rhs, N).last_column; \
(Current).file = YYRHSLOC (Rhs, N).file; \
} \
else \
{ \
(Current).first_line = (Current).last_line = \
YYRHSLOC (Rhs, 0).last_line; \
(Current).first_column = (Current).last_column = \
YYRHSLOC (Rhs, 0).last_column; \
(Current).file = YYRHSLOC (Rhs, 0).file; \
} \
while (YYID (0))
typedef YYLTYPE srcpos;
/*
* Fictional source position used for IR nodes that are
* created without otherwise knowing a true source position.
* For example,constant definitions from the command line.
*/
extern srcpos srcpos_empty;
extern struct srcpos srcpos_empty;
extern void srcpos_update(srcpos *pos, const char *text, int len);
extern srcpos *srcpos_copy(srcpos *pos);
extern char *srcpos_string(srcpos *pos);
extern void srcpos_dump(srcpos *pos);
extern void srcpos_update(struct srcpos *pos, const char *text, int len);
extern struct srcpos *srcpos_copy(struct srcpos *pos);
extern char *srcpos_string(struct srcpos *pos);
extern void srcpos_dump(struct srcpos *pos);
extern void srcpos_error(srcpos *pos, char const *, ...)
extern void srcpos_error(struct srcpos *pos, char const *, ...)
__attribute__((format(printf, 2, 3)));
extern void srcpos_warn(srcpos *pos, char const *, ...)
extern void srcpos_warn(struct srcpos *pos, char const *, ...)
__attribute__((format(printf, 2, 3)));
#endif /* _SRCPOS_H_ */