# Bison Regressions. -*- Autotest -*-
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
# Foundation, Inc.
-# This program is free software; you can redistribute it and/or modify
+# 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.
-
+# the Free Software Foundation, either version 3 of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
AT_BANNER([[Regression tests.]])
program: 'x';
]])
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
AT_COMPILE([input.o], [-c input.c])
AT_COMPILE([input.o], [-DYYDEBUG -c input.c])
program: { $$ = ""; };
]])
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
AT_COMPILE([input.o], [-c input.c])
AT_CLEANUP
%%
]])
-AT_CHECK([bison -y -o input.c input.y])
+AT_BISON_CHECK([-y -o input.c input.y])
AT_COMPILE([input.o], [-c input.c])
AT_CLEANUP
%%
]])
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
AT_COMPILE([input.o], [-c input.c])
AT_CLEANUP
%%
]])
-AT_CHECK([bison -v -o input.c input.y])
+AT_BISON_CHECK([-v -o input.c input.y])
AT_CHECK([grep 'tests = {{{{{{{{{{}}}}}}}}}};' input.c], 0, [ignore])
%%
]])
-AT_CHECK([bison -v -o input.c input.y], 0, [],
+AT_BISON_CHECK([-v -o input.c input.y], 0, [],
[[input.y:6.8-14: warning: symbol `"<="' used more than once as a literal string
]])
};
]])
-AT_CHECK([bison -o input.c -v input.y])
+AT_BISON_CHECK([-o input.c -v input.y])
# Check the contents of the report.
AT_CHECK([cat input.output], [],
%%
]])
-AT_CHECK([bison -v -o input.c input.y])
+AT_BISON_CHECK([-v -o input.c input.y])
AT_CLEANUP
%{
]])
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
[[input.y:2.1: invalid character: `?'
input.y:3.14: invalid character: `}'
input.y:4.1: invalid character: `%'
%union
]])
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
[[input.y:3.1-15: syntax error, unexpected %initial-action, expecting {...}
]])
%token C_TOKEN 'c'
%token 'd' D_TOKEN
%token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+%token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
%%
exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
%%
}
]])
-AT_CHECK([bison -o input.c input.y])
+# Checking the warning message guarantees that the trigraph "??!" isn't
+# unnecessarily escaped here even though it would need to be if encoded in a
+# C-string literal. Also notice that unnecessary escaping, such as "\?", from
+# the user specification is eliminated.
+AT_BISON_CHECK([-o input.c input.y], [[0]], [[]],
+[[input.y:22.8-14: warning: symbol SPECIAL redeclared
+input.y:22.8-63: warning: symbol `"\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!"' used more than once as a literal string
+]])
AT_COMPILE([input])
+
+# Checking the error message here guarantees that yytname, which does contain
+# C-string literals, does have the trigraph escaped correctly. Thus, the
+# symbol name reported by the parser is exactly the same as that reported by
+# Bison itself.
AT_DATA([experr],
-[[syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201?\?!", expecting a
+[[syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!", expecting a
]])
AT_PARSER_CHECK([./input], 1, [], [experr])
AT_CLEANUP
]])
# Pacify font-lock-mode: "
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
AT_COMPILE([input.o], [-c input.c])
AT_CLEANUP
%%
]])
-AT_CHECK([bison -v input.y])
+AT_BISON_CHECK([-v input.y])
AT_CHECK([cat input.output], 0,
[[Grammar
%%
]])
-AT_CHECK([bison -v -o input.c input.y])
+AT_BISON_CHECK([-v -o input.c input.y])
-# Check only the tables. We don't use --no-parser, because it is
-# still to be implemented in the experimental branch of Bison.
+# Check only the tables.
[sed -n 's/ *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c]
AT_CHECK([[cat tables.c]], 0,
AT_LALR1_CC_IF(
[/* A C++ error reporting function. */
void
-yy::parser::error (const location&, const std::string& m)
+yy::parser::error (const std::string& m)
{
std::cerr << m << std::endl;
}
[AT_SETUP([Dancer $1])
AT_BISON_OPTION_PUSHDEFS([$1])
_AT_DATA_DANCER_Y([$1])
-AT_CHECK([bison -o dancer.c dancer.y])
-AT_LALR1_CC_IF(
- [AT_CHECK([bison -o dancer.cc dancer.y])
- AT_COMPILE_CXX([dancer])],
- [AT_CHECK([bison -o dancer.c dancer.y])
- AT_COMPILE([dancer])])
+AT_BISON_CHECK([-o dancer.c dancer.y])
+AT_FULL_COMPILE([dancer])
AT_PARSER_CHECK([./dancer], 1, [],
[syntax error, unexpected ':'
])
AT_LALR1_CC_IF(
[/* A C++ error reporting function. */
void
-yy::parser::error (const location&, const std::string& m)
+yy::parser::error (const std::string& m)
{
std::cerr << m << std::endl;
}
[AT_SETUP([Expecting two tokens $1])
AT_BISON_OPTION_PUSHDEFS([$1])
_AT_DATA_EXPECT2_Y([$1])
-AT_CHECK([bison -o expect2.c expect2.y])
-AT_LALR1_CC_IF(
- [AT_CHECK([bison -o expect2.cc expect2.y])
- AT_COMPILE_CXX([expect2])],
- [AT_CHECK([bison -o expect2.c expect2.y])
- AT_COMPILE([expect2])])
+AT_BISON_CHECK([-o expect2.c expect2.y])
+AT_FULL_COMPILE([expect2])
AT_PARSER_CHECK([./expect2], 1, [],
[syntax error, unexpected '+', expecting A or B
])
}
]])
-AT_CHECK([bison -t -o input.c input.y])
+AT_BISON_CHECK([-t -o input.c input.y])
AT_COMPILE([input])
AT_PARSER_CHECK([./input], 0,
[[Bison would once convert this action to a midrule because of the subsequent braced code.
%token 'a' "A";
]])
-AT_CHECK([bison -t -o input.c input.y])
+AT_BISON_CHECK([-t -o input.c input.y])
+
+AT_CLEANUP
+
+
+
+## -------------------------------- ##
+## Extra lookahead sets in report. ##
+## -------------------------------- ##
+
+AT_SETUP([[Extra lookahead sets in report]])
+
+# Bison prints each reduction's lookahead set only next to the associated
+# state's one item that (1) is associated with the same rule as the reduction
+# and (2) has its dot at the end of its RHS. Previously, Bison also
+# erroneously printed the lookahead set next to all of the state's other items
+# associated with the same rule. This bug affected only the `.output' file and
+# not the generated parser source code.
+
+AT_DATA([[input.y]],
+[[%%
+start: a | 'a' a 'a' ;
+a: 'a' ;
+]])
+
+AT_BISON_CHECK([[--report=all input.y]])
+AT_CHECK([[sed -n '/^state 1$/,/^state 2$/p' input.output]], [[0]],
+[[state 1
+
+ 2 start: 'a' . a 'a'
+ 3 a: . 'a'
+ 3 | 'a' . [$end]
+
+ 'a' shift, and go to state 4
+
+ $default reduce using rule 3 (a)
+
+ a go to state 5
+
+
+state 2
+]])
+
+AT_CLEANUP
+
+
+
+## ---------------------------------------- ##
+## Token number in precedence declaration. ##
+## ---------------------------------------- ##
+
+AT_SETUP([[Token number in precedence declaration]])
+
+# POSIX says token numbers can be declared in %left, %right, and %nonassoc, but
+# we lost this in Bison 1.50.
+
+AT_DATA_GRAMMAR([input.y],
+[[%{
+ #include <stdio.h>
+ void yyerror (char const *);
+ int yylex (void);
+%}
+
+%error-verbose
+%left TK1 1 TK2 2 "tok alias" 3
+
+%%
+
+start: TK1 sr_conflict "tok alias" ;
+
+sr_conflict:
+ TK2
+ | TK2 "tok alias"
+ ;
+
+%%
+
+void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+yylex (void)
+{
+ static int const input[] = { 1, 2, 3, 0 };
+ static int const *inputp = input;
+ return *inputp++;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+]])
+
+AT_BISON_CHECK([[-o input.c input.y]], [[0]],,
+[[input.y:24.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias"
+]])
+AT_COMPILE([[input]])
+AT_PARSER_CHECK([[./input]])
+
+AT_CLEANUP
+
+
+
+## ----------------------------------------------- ##
+## Fix user actions without a trailing semicolon. ##
+## ----------------------------------------------- ##
+
+AT_SETUP([[Fix user actions without a trailing semicolon]])
+
+# This feature is undocumented, but we accidentally broke it in 2.3a, and there
+# was a complaint at:
+# <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
+
+AT_DATA([input.y],
+[[%%
+start: {asdffdsa} ;
+]])
+
+AT_BISON_CHECK([[-o input.c input.y]])
+AT_CHECK([[sed -n '/asdffdsa/s/^ *//p' input.c]], [[0]],
+[[{asdffdsa;}
+]])
AT_CLEANUP
projects / bison.git / blobdiff