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728c5e87c6
Our YYLTYPE current carries around first and last line and first and last column information. However, of these, on the first line information is actually filled in properly. Furthermore, filling in the line number information from yylineno is kind of clunky: we have to copy its value to the srcfile stack and back to handle include file positioning correctly. This patch cleans this up. We turn off flex's yylineno option and instead track the line and column number ourselves from YY_USER_ACTION. The line and column number are stored directly inside the srcfile_state structure, so it's automatically a per-file quantity. We now also fill in all the yylloc from YY_USER_ACTION. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
102 lines
3 KiB
C
102 lines
3 KiB
C
/*
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* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifndef _SRCPOS_H_
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#define _SRCPOS_H_
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/*
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* Augment the standard YYLTYPE with a filenum index into an
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* array of all opened filenames.
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*/
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#include <stdio.h>
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struct srcfile_state {
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FILE *f;
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char *name;
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char *dir;
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int lineno, colno;
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struct srcfile_state *prev;
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};
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extern struct srcfile_state *current_srcfile; /* = NULL */
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FILE *srcfile_relative_open(const char *fname, char **fullnamep);
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void srcfile_push(const char *fname);
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int srcfile_pop(void);
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#if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
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typedef struct YYLTYPE {
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int first_line;
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int first_column;
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int last_line;
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int last_column;
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struct srcfile_state *file;
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} YYLTYPE;
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#define YYLTYPE_IS_DECLARED 1
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#define YYLTYPE_IS_TRIVIAL 1
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#endif
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/* Cater to old parser templates. */
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#ifndef YYID
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#define YYID(n) (n)
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#endif
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#define YYLLOC_DEFAULT(Current, Rhs, N) \
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do \
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if (YYID (N)) \
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{ \
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(Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
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(Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
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(Current).last_line = YYRHSLOC (Rhs, N).last_line; \
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(Current).last_column = YYRHSLOC (Rhs, N).last_column; \
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(Current).file = YYRHSLOC (Rhs, N).file; \
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} \
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else \
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{ \
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(Current).first_line = (Current).last_line = \
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YYRHSLOC (Rhs, 0).last_line; \
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(Current).first_column = (Current).last_column = \
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YYRHSLOC (Rhs, 0).last_column; \
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(Current).file = YYRHSLOC (Rhs, 0).file; \
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} \
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while (YYID (0))
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typedef YYLTYPE srcpos;
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/*
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* Fictional source position used for IR nodes that are
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* created without otherwise knowing a true source position.
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* For example,constant definitions from the command line.
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*/
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extern srcpos srcpos_empty;
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extern void srcpos_update(srcpos *pos, const char *text, int len);
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extern srcpos *srcpos_copy(srcpos *pos);
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extern char *srcpos_string(srcpos *pos);
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extern void srcpos_dump(srcpos *pos);
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extern void srcpos_error(srcpos *pos, char const *, ...)
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__attribute__((format(printf, 2, 3)));
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extern void srcpos_warn(srcpos *pos, char const *, ...)
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__attribute__((format(printf, 2, 3)));
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#endif /* _SRCPOS_H_ */
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