# Bison Regressions. -*- Autotest -*-
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 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
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([-o input.c input.y])
-AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o])
AT_COMPILE([input.o], [-DYYDEBUG -c input.c])
AT_CLEANUP
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([-o input.c input.y])
-AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o])
AT_CLEANUP
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([-y -o input.c input.y])
-AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o])
AT_CLEANUP
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%{
-#include <stdio.h>
]AT_YYERROR_DECLARE_EXTERN[
]AT_YYLEX_DECLARE_EXTERN[
void print_my_token (void);
int val;
};
%{
+#include <stdio.h>
void
print_my_token (void)
{
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([-o input.c input.y])
-AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o])
AT_CLEANUP
AT_BISON_OPTION_POPDEFS
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
+[[input.y:6.8-14: warning: symbol "<=" used more than once as a literal string [-Wother]
]])
AT_CLEANUP
0 $accept: expr $end
- 1 $@1: /* empty */
+ 1 $@1: %empty
2 expr: 'a' $@1 'b'
- 3 $@2: /* empty */
+ 3 $@2: %empty
4 expr: $@2 'c'
on left: 3, on right: 4
-state 0
+State 0
0 $accept: . expr $end
$@2 go to state 3
-state 1
+State 1
2 expr: 'a' . $@1 'b'
$@1 go to state 4
-state 2
+State 2
0 $accept: expr . $end
$end shift, and go to state 5
-state 3
+State 3
4 expr: $@2 . 'c'
'c' shift, and go to state 6
-state 4
+State 4
2 expr: 'a' $@1 . 'b'
'b' shift, and go to state 7
-state 5
+State 5
0 $accept: expr $end .
$default accept
-state 6
+State 6
4 expr: $@2 'c' .
$default reduce using rule 4 (expr)
-state 7
+State 7
2 expr: 'a' $@1 'b' .
%token <operator> LE 134 "<="
%left OR "<="
%%
-exp: ;
+exp: %empty;
%%
]])
-AT_BISON_CHECK([-v -o input.c input.y])
+AT_BISON_CHECK([-v -Wall -o input.c input.y], 0, [],
+[[input.y:3.1-5: warning: useless precedence and associativity for "||" [-Wprecedence]
+input.y:3.1-5: warning: useless precedence and associativity for "<=" [-Wprecedence]
+]])
AT_CLEANUP
]])
AT_BISON_CHECK([input.y], [1], [],
-[[input.y:2.1: invalid character: '?'
-input.y:3.14: invalid character: '}'
-input.y:4.1: invalid character: '%'
-input.y:4.2: invalid character: '&'
-input.y:5.1-17: invalid directive: '%a-does-not-exist'
-input.y:6.1: invalid character: '%'
-input.y:6.2: invalid character: '-'
-input.y:7.1-8.0: missing '%}' at end of file
-input.y:7.1-8.0: syntax error, unexpected %{...%}
+[[input.y:2.1: error: invalid character: '?'
+input.y:3.14: error: invalid character: '}'
+input.y:4.1: error: invalid character: '%'
+input.y:4.2: error: invalid character: '&'
+input.y:5.1-17: error: invalid directive: '%a-does-not-exist'
+input.y:6.1: error: invalid character: '%'
+input.y:6.2: error: invalid character: '-'
+input.y:7.1-8.0: error: missing '%}' at end of file
+input.y:7.1-8.0: error: syntax error, unexpected %{...%}
]])
AT_CLEANUP
]])
AT_BISON_CHECK([input.y], [1], [],
-[[input.y:3.1-15: syntax error, unexpected %initial-action, expecting {...}
+[[input.y:3.1-15: error: syntax error, unexpected %initial-action, expecting {...}
]])
AT_CLEANUP
# Bison managed, when fed with '%token 'f' "f"' to #define 'f'!
AT_DATA_GRAMMAR([input.y],
[%{
-#include <stdlib.h>
-#include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
%}
%%
exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
%%
-void
-yyerror (char const *s)
-{
- fprintf (stderr, "%s\n", s);
-}
-
-int
-yylex (void)
-{
- static int called;
- if (called++)
- abort ();
- return SPECIAL;
-}
-
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE([{ SPECIAL }])[
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
# 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
+[[input.y:22.8-14: warning: symbol SPECIAL redeclared [-Wother]
+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 [-Wother]
+]])
+AT_BISON_CHECK([-fcaret -o input.c input.y], [[0]], [[]],
+[[input.y:22.8-14: warning: symbol SPECIAL redeclared [-Wother]
+ %token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+ ^^^^^^^
+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 [-Wother]
+ %token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
]])
AT_COMPILE([input])
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([-o input.c input.y])
-AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o])
AT_CLEANUP
2 CONST_DEC_LIST: CONST_DEC
3 | CONST_DEC_LIST CONST_DEC
- 4 $@1: /* empty */
+ 4 $@1: %empty
5 CONST_DEC: $@1 undef_id_tok '=' const_id_tok ';'
on left: 4, on right: 5
-state 0
+State 0
0 $accept: . CONST_DEC_PART $end
$@1 go to state 4
-state 1
+State 1
0 $accept: CONST_DEC_PART . $end
$end shift, and go to state 5
-state 2
+State 2
1 CONST_DEC_PART: CONST_DEC_LIST .
3 CONST_DEC_LIST: CONST_DEC_LIST . CONST_DEC
$@1 go to state 4
-state 3
+State 3
2 CONST_DEC_LIST: CONST_DEC .
$default reduce using rule 2 (CONST_DEC_LIST)
-state 4
+State 4
5 CONST_DEC: $@1 . undef_id_tok '=' const_id_tok ';'
undef_id_tok shift, and go to state 7
-state 5
+State 5
0 $accept: CONST_DEC_PART $end .
$default accept
-state 6
+State 6
3 CONST_DEC_LIST: CONST_DEC_LIST CONST_DEC .
$default reduce using rule 3 (CONST_DEC_LIST)
-state 7
+State 7
5 CONST_DEC: $@1 undef_id_tok . '=' const_id_tok ';'
'=' shift, and go to state 8
-state 8
+State 8
5 CONST_DEC: $@1 undef_id_tok '=' . const_id_tok ';'
const_id_tok shift, and go to state 9
-state 9
+State 9
5 CONST_DEC: $@1 undef_id_tok '=' const_id_tok . ';'
';' shift, and go to state 10
-state 10
+State 10
5 CONST_DEC: $@1 undef_id_tok '=' const_id_tok ';' .
AT_DATA([input.y],
[[%%
statement: struct_stat;
-struct_stat: /* empty. */ | if else;
+struct_stat: %empty | if else;
if: "if" "const" "then" statement;
else: "else" statement;
%%
# so that possible bound checking compilers could check all the skeletons.
m4_define([_AT_DATA_DANCER_Y],
[AT_DATA_GRAMMAR([dancer.y],
-[%{
-static int yylex (AT_LALR1_CC_IF([int *], [void]));
-AT_LALR1_CC_IF([#include <cstdlib>],
-[#include <stdlib.h>
-#include <stdio.h>
-]AT_YYERROR_DECLARE[])
-%}
+[[%code provides
+{
+ ]AT_YYERROR_DECLARE[
+ ]AT_YYLEX_DECLARE[
+}
$1
%token ARROW INVALID NUMBER STRING DATA
-%defines
%verbose
%error-verbose
/* Grammar follows */
| INVALID
;
-body: /* empty */
+body: %empty
| body member
;
| INVALID
;
%%
-AT_LALR1_CC_IF(
-[/* A C++ error reporting function. */
-void
-yy::parser::error (const std::string& m)
-{
- std::cerr << m << std::endl;
-}
-
-int
-yyparse ()
-{
- yy::parser parser;
-#if YYDEBUG
- parser.set_debug_level (YYDEBUG);
-#endif
- return parser.parse ();
-}
-],
-[static void
-yyerror (const char *s)
-{
- fprintf (stderr, "%s\n", s);
-}])
-
-static int
-yylex (AT_LALR1_CC_IF([int *lval], [void]))
-[{
- static int const tokens[] =
- {
- ':', -1
- };
- static size_t toknum;
- ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[
- if (! (toknum < sizeof tokens / sizeof *tokens))
- abort ();
- return tokens[toknum++];
-}]
-
-int
-main (void)
-{
- return yyparse ();
-}
-])
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE([":"])[
+]AT_MAIN_DEFINE[
+]])
])# _AT_DATA_DANCER_Y
[AT_SETUP([Dancer $1])
AT_BISON_OPTION_PUSHDEFS([$1])
_AT_DATA_DANCER_Y([$1])
-AT_BISON_CHECK([-o dancer.c dancer.y])
AT_FULL_COMPILE([dancer])
AT_PARSER_CHECK([./dancer], 1, [],
[syntax error, unexpected ':'
[%{
static int yylex (AT_LALR1_CC_IF([int *], [void]));
AT_LALR1_CC_IF([[#include <cstdlib>]],
-[[#include <stdlib.h>
-#include <stdio.h>
+[[
]AT_YYERROR_DECLARE])[
%}
$1
-%defines
%error-verbose
%token A 1000
%token B
%%
-program: /* empty */
+program: %empty
| program e ';'
| program error ';';
}
])[
+#include <assert.h>
static int
yylex (]AT_LALR1_CC_IF([int *lval], [void])[)
{
};
static size_t toknum;
]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[
- if (! (toknum < sizeof tokens / sizeof *tokens))
- abort ();
+ assert (toknum < sizeof tokens / sizeof *tokens);
return tokens[toknum++];
}
-
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
])# _AT_DATA_EXPECT2_Y
[AT_SETUP([Expecting two tokens $1])
AT_BISON_OPTION_PUSHDEFS([$1])
_AT_DATA_EXPECT2_Y([$1])
-AT_BISON_CHECK([-o expect2.c expect2.y])
AT_FULL_COMPILE([expect2])
AT_PARSER_CHECK([./expect2], 1, [],
[syntax error, unexpected '+', expecting A or B
# Bison once mistook braced code in a declaration in the rules section to be a
# rule action.
-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([input.y],
[[%{
-#include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
%}
-
+%debug
%error-verbose
-
%%
start:
%printer { fprintf (yyoutput, "PRINTER"); } 'a';
%%
-
]AT_YYERROR_DEFINE[
-static int
-yylex (void)
-{
- return 'a';
-}
-
-int
-main (void)
-{
- yydebug = 1;
- return !yyparse ();
-}
+]AT_YYLEX_DEFINE(["a"])[
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
-AT_BISON_CHECK([-t -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
AT_COMPILE([input])
-AT_PARSER_CHECK([./input], 0,
+AT_PARSER_CHECK([./input --debug], 1,
[[Bison would once convert this action to a midrule because of the subsequent braced code.
]],
[[Starting parse
%token 'a' "A";
]])
-AT_BISON_CHECK([-t -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
AT_CLEANUP
]])
AT_BISON_CHECK([[--report=all input.y]])
-AT_CHECK([[sed -n '/^state 1$/,/^state 2$/p' input.output]], [[0]],
-[[state 1
+AT_CHECK([[sed -n '/^State 1$/,/^State 2$/p' input.output]], [[0]],
+[[State 1
2 start: 'a' . a 'a'
3 a: . 'a'
a go to state 5
-state 2
+State 2
]])
AT_CLEANUP
# we lost this in Bison 1.50.
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
-[[%{
- #include <stdio.h>
+[[%code {
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
-%}
+}
%error-verbose
%right END 0
%%
]AT_YYERROR_DEFINE[
-int
-yylex (void)
-{
- static int const input[] = { 1, 2, 3, 0 };
- static int const *inputp = input;
- return *inputp++;
-}
-
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_YYLEX_DEFINE([{ 1, 2, 3, 0 }])[
+]AT_MAIN_DEFINE[
]])
-AT_BISON_OPTION_POPDEFS
-AT_BISON_CHECK([[-o input.c input.y]], [[0]],,
-[[input.y:23.5-19: warning: rule useless in parser due to conflicts: start: start
-input.y:27.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias"
+AT_BISON_CHECK([[-Wall -o input.c input.y]], [[0]],,
+[[input.y:24.5-19: warning: rule useless in parser due to conflicts [-Wother]
+input.y:28.5-19: warning: rule useless in parser due to conflicts [-Wother]
+input.y:18.1-5: warning: useless precedence and associativity for TK1 [-Wprecedence]
]])
AT_COMPILE([[input]])
AT_PARSER_CHECK([[./input]])
+AT_BISON_OPTION_POPDEFS
AT_CLEANUP
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
#define YYSTACK_USE_ALLOCA 1
/* Induce two syntax error messages (which requires full error
recovery by shifting 3 tokens) in order to detect any loss of the
reallocated buffer. */
-]AT_YYLEX_DEFINE([abc])[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_YYLEX_DEFINE(["abc"])[
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
]AT_YYERROR_DEFINE[
/* Induce two syntax error messages (which requires full error
recovery by shifting 3 tokens). */
-]AT_YYLEX_DEFINE([abc])[
+]AT_YYLEX_DEFINE(["abc"])[
int
main (void)
{
m4_pushdef([AT_LAC_CHECK], [
-AT_BISON_OPTION_PUSHDEFS([$1])
+AT_BISON_OPTION_PUSHDEFS([%debug $1])
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
int yylex (]AT_PURE_IF([[YYSTYPE *]], [[void]])[);
}
-
+%debug
]$1[
%define parse.error verbose
%token 'c'
return *input++;
}
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
-Dparse.lac.memory-trace=full \
- -t -o input.c input.y]], [[0]], [],
-[[input.y: conflicts: 21 shift/reduce
+ -o input.c input.y]], [[0]], [],
+[[input.y: warning: 21 shift/reduce conflicts [-Wconflicts-sr]
]])
AT_COMPILE([[input]])
-AT_PARSER_CHECK([[./input > stdout.txt 2> stderr.txt]], [[1]])
+AT_PARSER_CHECK([[./input --debug > stdout.txt 2> stderr.txt]], [[1]])
# Make sure syntax error doesn't forget that 'a' is expected. It would
# be forgotten without lookahead correction.
# Check number of default reductions in inconsistent states to be sure
# syntax error is detected before unnecessary reductions are performed.
-AT_CHECK([[perl -0777 -ne 'print s/inconsistent default reduction//g;' \
+AT_CHECK([[$PERL -0777 -ne 'print s/inconsistent default reduction//g;' \
< stdout.txt || exit 77]], [[0]], [[14]])
# Check number of default reductions in consistent states to be sure
# it is performed before the syntax error is detected.
-AT_CHECK([[perl -0777 -ne 'print s/\bconsistent default reduction//g;' \
+AT_CHECK([[$PERL -0777 -ne 'print s/\bconsistent default reduction//g;' \
< stdout.txt || exit 77]], [[0]], [[2]])
# Check number of reallocs to be sure reallocated memory isn't somehow
# lost between LAC invocations.
-AT_CHECK([[perl -0777 -ne 'print s/\(realloc//g;' < stderr.txt \
+AT_CHECK([[$PERL -0777 -ne 'print s/\(realloc//g;' < stderr.txt \
|| exit 77]], [[0]], [[3]])
AT_BISON_OPTION_POPDEFS
AT_SETUP([[LAC: Memory exhaustion]])
m4_pushdef([AT_LAC_CHECK],
-[AT_BISON_OPTION_PUSHDEFS
+[AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
#define YYMAXDEPTH 8
}
-
+%debug
%error-verbose
%%
%%
]AT_YYERROR_DEFINE[
-]AT_YYLEX_DEFINE([$1])[
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_YYLEX_DEFINE(["$1"])[
+]AT_MAIN_DEFINE[
]])
AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
- -t -o input.c input.y]], [[0]], [],
-[[input.y: conflicts: 8 shift/reduce
+ -o input.c input.y]], [[0]], [],
+[[input.y: warning: 8 shift/reduce conflicts [-Wconflicts-sr]
]])
AT_COMPILE([[input]])
AT_BISON_OPTION_POPDEFS
# Check for memory exhaustion during parsing.
AT_LAC_CHECK([])
-AT_PARSER_CHECK([[./input]], [[2]], [],
+AT_PARSER_CHECK([[./input --debug]], [[2]], [],
[[Starting parse
Entering state 0
Reading a token: Now at end of input.
# Induce an immediate syntax error with an undefined token, and check
# for memory exhaustion while building syntax error message.
AT_LAC_CHECK([z], [[0]])
-AT_PARSER_CHECK([[./input]], [[2]], [],
+AT_PARSER_CHECK([[./input --debug]], [[2]], [],
[[Starting parse
Entering state 0
Reading a token: Next token is token $undefined ()
m4_popdef([AT_LAC_CHECK])
AT_CLEANUP
+
+
+## ---------------------- ##
+## Lex and parse params. ##
+## ---------------------- ##
+
+# AT_TEST(SKELETON)
+# -----------------
+# Check that the identifier of the params is properly fetched
+# even when there are trailing blanks.
+
+m4_pushdef([AT_TEST],
+[AT_SETUP([[Lex and parse params: $1]])
+
+## FIXME: Improve parsing of parse-param.
+AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" %parse-param { int x } %parse-param { int y }])
+
+AT_DATA_GRAMMAR([input.y],
+[[%locations
+%skeleton "$1"
+%union { int ival; }
+%parse-param { int x }
+// Spaces, tabs, and new lines.
+%parse-param { @&t@
+@tb@ int y@tb@ @&t@
+ @&t@
+ @&t@
+}
+
+%{
+ ]AT_YYERROR_DECLARE[
+ ]AT_YYLEX_DECLARE[
+%}
+
+%%
+exp: 'a' { fprintf (stdout, "x: %d, y: %d\n", x, y); };
+%%
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE(["a"])[
+
+]AT_SKEL_CC_IF(
+[int
+yyparse (int x, int y)
+{
+ yy::parser parser(x, y);
+ return parser.parse ();
+}
+])[
+
+int
+main (void)
+{
+ return yyparse(1, 2);
+}
+]])
+
+AT_FULL_COMPILE([input])
+AT_PARSER_CHECK([./input], 0, [[x: 1, y: 2
+]])
+AT_BISON_OPTION_POPDEFS
+
+AT_CLEANUP
+])
+
+## FIXME: test Java, and iterate over skeletons.
+AT_TEST([yacc.c])
+AT_TEST([glr.c])
+AT_TEST([lalr1.cc])
+AT_TEST([glr.cc])
+
+m4_popdef([AT_TEST])
+
+
+## ----------------------- ##
+## stdio.h is not needed. ##
+## ----------------------- ##
+
+# At some point, by accident, yy_location_print_ was using fprintf and
+# FILE which are from stdio.h, which we do not require.
+AT_SETUP([[stdio.h is not needed]])
+
+AT_BISON_OPTION_PUSHDEFS
+
+AT_DATA_GRAMMAR([input.y],
+[[%locations
+%code
+{
+ static int yylex (void) { return 0; }
+ static void yyerror (const char* msg) { (void) msg; }
+}
+%%
+exp: {}
+%%
+]AT_MAIN_DEFINE[
+]])
+
+AT_FULL_COMPILE([input])
+
+AT_BISON_OPTION_POPDEFS
+
+AT_CLEANUP
projects / bison.git / blobdiff