mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-09 12:23:04 +00:00
b29b2ed560
symbol is kept, only the line of the first occurrence is kept too. * src/symtab.h, src/symtab.c (bucket): Remove the line member. * src/reader.c (rline_allocated): Remove, unused. (symbol_list): Have a `line' member. (symbol_list_new): New. (readgram): Use it. * src/print.c (print_grammar): Output the rule line numbers. * tests/regression.at (Solved SR Conflicts) (Unresolved SR Conflicts): Adjust. Reported by Hans Aberg.
440 lines
6.6 KiB
Plaintext
440 lines
6.6 KiB
Plaintext
# Bison Regressions. -*- 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([[Regression tests.]])
|
|
|
|
## ------------------ ##
|
|
## Duplicate string. ##
|
|
## ------------------ ##
|
|
|
|
|
|
AT_SETUP([Duplicate string])
|
|
|
|
AT_DATA([duplicate.y],
|
|
[[/* `Bison -v' used to dump core when two tokens are defined with the same
|
|
string, as LE and GE below. */
|
|
|
|
%token NUM
|
|
%token LE "<="
|
|
%token GE "<="
|
|
|
|
%%
|
|
exp: '(' exp ')' | NUM ;
|
|
%%
|
|
]])
|
|
|
|
AT_CHECK([bison -v duplicate.y -o duplicate.c], 0, ignore, ignore)
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ------------------------- ##
|
|
## Unresolved SR Conflicts. ##
|
|
## ------------------------- ##
|
|
|
|
AT_SETUP([Unresolved SR Conflicts])
|
|
|
|
AT_DATA([input.y],
|
|
[[%token NUM OP
|
|
%%
|
|
exp: exp OP exp | NUM;
|
|
]])
|
|
|
|
AT_CHECK([bison input.y -o input.c -v], 0, [],
|
|
[input.y contains 1 shift/reduce conflict.
|
|
])
|
|
|
|
# Check the contents of the report.
|
|
AT_CHECK([cat input.output], [],
|
|
[[State 4 contains 1 shift/reduce conflict.
|
|
|
|
Grammar
|
|
|
|
Number, Line, Rule
|
|
1 3 exp -> exp OP exp
|
|
2 3 exp -> NUM
|
|
|
|
Terminals, with rules where they appear
|
|
|
|
$ (-1)
|
|
error (256)
|
|
NUM (257) 2
|
|
OP (258) 1
|
|
|
|
Nonterminals, with rules where they appear
|
|
|
|
exp (5)
|
|
on left: 1 2, on right: 1
|
|
|
|
|
|
state 0
|
|
|
|
NUM shift, and go to state 1
|
|
|
|
exp go to state 2
|
|
|
|
|
|
|
|
state 1
|
|
|
|
exp -> NUM . (rule 2)
|
|
|
|
$default reduce using rule 2 (exp)
|
|
|
|
|
|
|
|
state 2
|
|
|
|
exp -> exp . OP exp (rule 1)
|
|
|
|
$ go to state 5
|
|
OP shift, and go to state 3
|
|
|
|
|
|
|
|
state 3
|
|
|
|
exp -> exp OP . exp (rule 1)
|
|
|
|
NUM shift, and go to state 1
|
|
|
|
exp go to state 4
|
|
|
|
|
|
|
|
state 4
|
|
|
|
exp -> exp . OP exp (rule 1)
|
|
exp -> exp OP exp . (rule 1)
|
|
|
|
OP shift, and go to state 3
|
|
|
|
OP [reduce using rule 1 (exp)]
|
|
$default reduce using rule 1 (exp)
|
|
|
|
|
|
|
|
state 5
|
|
|
|
$ go to state 6
|
|
|
|
|
|
|
|
state 6
|
|
|
|
$default accept
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## --------------------- ##
|
|
## Solved SR Conflicts. ##
|
|
## --------------------- ##
|
|
|
|
AT_SETUP([Solved SR Conflicts])
|
|
|
|
AT_DATA([input.y],
|
|
[[%token NUM OP
|
|
%right OP
|
|
%%
|
|
exp: exp OP exp | NUM;
|
|
]])
|
|
|
|
AT_CHECK([bison input.y -o input.c -v], 0, [], [])
|
|
|
|
# Check the contents of the report.
|
|
AT_CHECK([cat input.output], [],
|
|
[[Conflict in state 4 between rule 1 and token OP resolved as shift.
|
|
|
|
Grammar
|
|
|
|
Number, Line, Rule
|
|
1 4 exp -> exp OP exp
|
|
2 4 exp -> NUM
|
|
|
|
Terminals, with rules where they appear
|
|
|
|
$ (-1)
|
|
error (256)
|
|
NUM (257) 2
|
|
OP (258) 1
|
|
|
|
Nonterminals, with rules where they appear
|
|
|
|
exp (5)
|
|
on left: 1 2, on right: 1
|
|
|
|
|
|
state 0
|
|
|
|
NUM shift, and go to state 1
|
|
|
|
exp go to state 2
|
|
|
|
|
|
|
|
state 1
|
|
|
|
exp -> NUM . (rule 2)
|
|
|
|
$default reduce using rule 2 (exp)
|
|
|
|
|
|
|
|
state 2
|
|
|
|
exp -> exp . OP exp (rule 1)
|
|
|
|
$ go to state 5
|
|
OP shift, and go to state 3
|
|
|
|
|
|
|
|
state 3
|
|
|
|
exp -> exp OP . exp (rule 1)
|
|
|
|
NUM shift, and go to state 1
|
|
|
|
exp go to state 4
|
|
|
|
|
|
|
|
state 4
|
|
|
|
exp -> exp . OP exp (rule 1)
|
|
exp -> exp OP exp . (rule 1)
|
|
|
|
OP shift, and go to state 3
|
|
|
|
$default reduce using rule 1 (exp)
|
|
|
|
|
|
|
|
state 5
|
|
|
|
$ go to state 6
|
|
|
|
|
|
|
|
state 6
|
|
|
|
$default accept
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
## -------------------- ##
|
|
## %expect not enough. ##
|
|
## -------------------- ##
|
|
|
|
AT_SETUP([%expect not enough])
|
|
|
|
AT_DATA([input.y],
|
|
[[%token NUM OP
|
|
%expect 0
|
|
%%
|
|
exp: exp OP exp | NUM;
|
|
]])
|
|
|
|
AT_CHECK([bison input.y -o input.c], 1, [],
|
|
[input.y contains 1 shift/reduce conflict.
|
|
expected 0 shift/reduce conflicts
|
|
])
|
|
AT_CLEANUP
|
|
|
|
|
|
## --------------- ##
|
|
## %expect right. ##
|
|
## --------------- ##
|
|
|
|
AT_SETUP([%expect right])
|
|
|
|
AT_DATA([input.y],
|
|
[[%token NUM OP
|
|
%expect 1
|
|
%%
|
|
exp: exp OP exp | NUM;
|
|
]])
|
|
|
|
AT_CHECK([bison input.y -o input.c], 0, [],
|
|
[input.y contains 1 shift/reduce conflict.
|
|
])
|
|
AT_CLEANUP
|
|
|
|
|
|
## ------------------ ##
|
|
## %expect too much. ##
|
|
## ------------------ ##
|
|
|
|
AT_SETUP([%expect too much])
|
|
|
|
AT_DATA([input.y],
|
|
[[%token NUM OP
|
|
%expect 2
|
|
%%
|
|
exp: exp OP exp | NUM;
|
|
]])
|
|
|
|
AT_CHECK([bison input.y -o input.c], 1, [],
|
|
[input.y contains 1 shift/reduce conflict.
|
|
expected 2 shift/reduce conflicts
|
|
])
|
|
AT_CLEANUP
|
|
|
|
|
|
## ---------------------- ##
|
|
## Mixing %token styles. ##
|
|
## ---------------------- ##
|
|
|
|
|
|
AT_SETUP([Mixing %token styles])
|
|
|
|
# Taken from the documentation.
|
|
AT_DATA([input.y],
|
|
[[%token <operator> OR "||"
|
|
%token <operator> LE 134 "<="
|
|
%left OR "<="
|
|
%%
|
|
exp: ;
|
|
%%
|
|
]])
|
|
|
|
AT_CHECK([bison -v input.y -o input.c], 0, ignore, ignore)
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
## ---------------------- ##
|
|
## %union and --defines. ##
|
|
## ---------------------- ##
|
|
|
|
|
|
AT_SETUP([%union and --defines])
|
|
|
|
AT_DATA([union.y],
|
|
[%union
|
|
{
|
|
int integer;
|
|
char *string ;
|
|
}
|
|
%%
|
|
exp: {};
|
|
])
|
|
|
|
AT_CHECK([bison --defines union.y])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## --------------------------------------- ##
|
|
## Duplicate '/' in C comments in %union ##
|
|
## --------------------------------------- ##
|
|
|
|
|
|
AT_SETUP([%union and C comments])
|
|
|
|
AT_DATA([union-comment.y],
|
|
[%union
|
|
{
|
|
/* The int. */ int integer;
|
|
/* The string. */ char *string ;
|
|
}
|
|
%%
|
|
exp: {};
|
|
])
|
|
|
|
AT_CHECK([bison union-comment.y])
|
|
AT_CHECK([fgrep '//*' union-comment.tab.c], [1], [])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------- ##
|
|
## Invalid input 1. ##
|
|
## ----------------- ##
|
|
|
|
|
|
AT_SETUP([Invalid input: 1])
|
|
|
|
AT_DATA([input.y],
|
|
[[%%
|
|
?
|
|
]])
|
|
|
|
AT_CHECK([bison input.y], [1], [],
|
|
[input.y:2: invalid input: `?'
|
|
input.y:3: fatal error: no rules in the input grammar
|
|
])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------- ##
|
|
## Invalid input 2. ##
|
|
## ----------------- ##
|
|
|
|
|
|
AT_SETUP([Invalid input: 2])
|
|
|
|
AT_DATA([input.y],
|
|
[[%%
|
|
default: 'a' }
|
|
]])
|
|
|
|
AT_CHECK([bison input.y], [1], [],
|
|
[input.y:2: invalid input: `}'
|
|
])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
## --------------------- ##
|
|
## Invalid CPP headers. ##
|
|
## --------------------- ##
|
|
|
|
# AT_TEST_CPP_GUARD_H([INPUT-FILE-BASE)
|
|
# -------------------------------------
|
|
m4_define([AT_TEST_CPP_GUARD_H],
|
|
[AT_SETUP([Invalid CPP guards: $1])
|
|
|
|
# Possibly create inner directories.
|
|
dirname=`AS_DIRNAME([$1])`
|
|
AS_MKDIR_P([$dirname])
|
|
|
|
AT_DATA([$1.y],
|
|
[%%
|
|
dummy:
|
|
])
|
|
|
|
AT_CHECK([bison --defines=$1.h $1.y])
|
|
|
|
# CPP should be happy with it.
|
|
AT_CHECK([$CC -E $1.h], 0, [ignore])
|
|
|
|
AT_CLEANUP
|
|
])
|
|
|
|
AT_TEST_CPP_GUARD_H([input/input])
|
|
AT_TEST_CPP_GUARD_H([9foo])
|