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Mid-rule actions are simply... ignored!

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* src/reader.c (readgram): Be sure to attach mid-rule actions to
the empty-rule associated to the dummy symbol, not to the host
rule.
* tests/actions.at (Mid-rule actions): New.
This commit is contained in:
Akim Demaille
2001-12-29 14:24:51 +00:00
parent 8419d367e1
commit 82c035a823
6 changed files with 105 additions and 12 deletions
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3
tests/Makefile.am
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@@ -25,7 +25,8 @@ MAINTAINERCLEANFILES = Makefile.in $(TESTSUITE)
TESTSUITE_AT = \
testsuite.at \
output.at sets.at reduce.at calc.at torture.at regression.at \
output.at sets.at reduce.at actions.at calc.at \
torture.at regression.at \
semantic.at
TESTSUITE = $(srcdir)/testsuite

87
tests/actions.at Normal file
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@@ -0,0 +1,87 @@
# Executing Actions. -*- Autotest -*-
# Copyright 2001 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
AT_BANNER([[User Actions.]])
## ------------------ ##
## Mid-rule actions. ##
## ------------------ ##
AT_SETUP([Mid-rule actions])
# Bison once forgot the mid-rule actions. It was because the action
# was attached to the host rule (the one with the mid-rule action),
# instead of being attached to the empty rule dedicated to this
# action.
AT_DATA([[input.y]],
[[%{
#include <stdio.h>
#include <stdlib.h>
static void yyerror (const char *msg);
static int yylex (void);
%}
%%
exp: { printf ("0\n"); }
'1' { printf ("1\n"); }
'2' { printf ("2\n"); }
'3' { printf ("3\n"); }
'4' { printf ("4\n"); }
'5' { printf ("5\n"); }
'6' { printf ("6\n"); }
'7' { printf ("7\n"); }
'8' { printf ("8\n"); }
'9' { printf ("9\n"); }
;
%%
static int
yylex (void)
{
static const char *input = "123456789";
return *input++;
}
static void
yyerror (const char *msg)
{
fprintf (stderr, "%s\n", msg);
}
int
main (void)
{
return yyparse ();
}
]])
AT_CHECK([bison input.y -d -v -o input.c])
AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
AT_CHECK([input], 0,
[[0
1
2
3
4
5
6
7
8
9
]])
AT_CLEANUP

11
tests/calc.at
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@@ -351,17 +351,6 @@ AT_DATA_CALC_Y([$1])
AT_CHECK([bison calc.y -o calc.c m4_bpatsubst([$1], [--yyerror-verbose])],
[0], [], [])
# Some compilers issue warnings we don't want to hear about.
# Maybe some day we will have proper Autoconf macros to disable these
# warnings, but this place is not the right one for that.
# So let's keep only GCC warnings, which we know are sane.
# Well, that's only part of the story: some assemblers issue warnings
# which can be totally useless, and actually polluting. It seems that
# the best bet be to completely ignore stderr, but to pass -Werror
# to GCC.
if test "$GCC" = yes; then
CFLAGS="$CFLAGS -Werror"
fi
AT_CHECK([$CC $CFLAGS $CPPFLAGS calc.c -o calc], 0, [], [ignore])
# Test the priorities.

1
tests/testsuite.at
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@@ -28,6 +28,7 @@ AT_TESTED([bison])
m4_include([output.at])
m4_include([sets.at])
m4_include([reduce.at])
m4_include([actions.at])
m4_include([calc.at])
m4_include([torture.at])
m4_include([regression.at])