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([-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'
%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
# 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[
%}
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE([{ SPECIAL }])[
-
-int
-main (void)
-{
- return yyparse ();
-}
+]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
+[[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
+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_KEYWORDS([report])
AT_DATA([input.y],
-[[%token undef_id_tok const_id_tok
+[[%token undef_id_tok const_id_tok
%start CONST_DEC_PART
\f
;
CONST_DEC_LIST:
- CONST_DEC
+ CONST_DEC
| CONST_DEC_LIST CONST_DEC
;
CONST_DEC:
- { } undef_id_tok '=' const_id_tok ';'
+ { } undef_id_tok '=' const_id_tok ';'
;
%%
]])
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 ';'
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;
%%
2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
5, 6
};
-static const yytype_uint8 yyprhs[] =
-{
- 0, 0, 3, 5, 6, 9, 14
-};
-static const yytype_int8 yyrhs[] =
-{
- 8, 0, -1, 9, -1, -1, 10, 11, -1, 3,
- 4, 5, 8, -1, 6, 8, -1
-};
static const yytype_uint8 yyrline[] =
{
0, 2, 2, 3, 3, 4, 5
{
0, 256, 257, 258, 259, 260, 261
};
-static const yytype_uint8 yyr1[] =
-{
- 0, 7, 8, 9, 9, 10, 11
-};
-static const yytype_uint8 yyr2[] =
+static const yytype_int8 yypact[] =
{
- 0, 2, 1, 0, 2, 4, 2
+ -2, -1, 4, -8, 0, 2, -8, -2, -8, -2,
+ -8, -8
};
static const yytype_uint8 yydefact[] =
{
3, 0, 0, 2, 0, 0, 1, 3, 4, 3,
6, 5
};
-static const yytype_int8 yydefgoto[] =
-{
- -1, 2, 3, 4, 8
-};
-static const yytype_int8 yypact[] =
-{
- -2, -1, 4, -8, 0, 2, -8, -2, -8, -2,
- -8, -8
-};
static const yytype_int8 yypgoto[] =
{
-8, -7, -8, -8, -8
};
+static const yytype_int8 yydefgoto[] =
+{
+ -1, 2, 3, 4, 8
+};
static const yytype_uint8 yytable[] =
{
10, 1, 11, 5, 6, 0, 7, 9
0, 3, 8, 9, 10, 4, 0, 6, 11, 5,
8, 8
};
+static const yytype_uint8 yyr1[] =
+{
+ 0, 7, 8, 9, 9, 10, 11
+};
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 1, 0, 2, 4, 2
+};
]])
AT_CLEANUP
}
$1
%token ARROW INVALID NUMBER STRING DATA
-%defines
%verbose
%error-verbose
/* Grammar follows */
| INVALID
;
-body: /* empty */
+body: %empty
| body member
;
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE([":"])[
-]AT_LALR1_CC_IF(
-[int
-yyparse ()
-{
- yy::parser parser;
-#if YYDEBUG
- parser.set_debug_level (YYDEBUG);
-#endif
- return parser.parse ();
-}
-])[
-
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
])# _AT_DATA_DANCER_Y
# --------------------------------
m4_define([_AT_DATA_EXPECT2_Y],
[AT_DATA_GRAMMAR([expect2.y],
-[[%{
-static int yylex (]AT_LALR1_CC_IF([int *], [void]));
-AT_LALR1_CC_IF([],
-[[#include <stdio.h>
-#include <stdlib.h>
+[%{
+static int yylex (AT_LALR1_CC_IF([int *], [void]));
+AT_LALR1_CC_IF([[#include <cstdlib>]],
+[[
]AT_YYERROR_DECLARE])[
%}
$1
-%defines
%error-verbose
%token A 1000
%token B
%%
-program: /* empty */
+program: %empty
| program e ';'
| program error ';';
assert (toknum < sizeof tokens / sizeof *tokens);
return tokens[toknum++];
}
-
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
])# _AT_DATA_EXPECT2_Y
# 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:
{
printf ("Bison would once convert this action to a midrule because of the"
- " subsequent braced code.\n");
+ " subsequent braced code.\n");
}
;
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["a"])[
-
-int
-main (void)
-{
- yydebug = 1;
- return !yyparse ();
-}
+]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
# 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[
]AT_YYLEX_DEFINE([{ 1, 2, 3, 0 }])[
-
-int
-main (void)
-{
- return yyparse ();
-}
+]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_SETUP([[parse-gram.y: LALR = IELR]])
-# Avoid differences in synclines by telling bison that the output files
-# have the same name.
+# Avoid tests/bison's dark magic by processing a local copy of the
+# grammar. Avoid differences in synclines by telling bison that the
+# output files have the same name.
[cp $abs_top_srcdir/src/parse-gram.y input.y]
AT_BISON_CHECK([[-o input.c -Dlr.type=lalr input.y]])
[mv input.c lalr.c]
-## --------------------------------------- ##
-## %error-verbose and YYSTACK_USE_ALLOCA. ##
-## --------------------------------------- ##
+## -------------------------------------------- ##
+## parse.error=verbose and YYSTACK_USE_ALLOCA. ##
+## -------------------------------------------- ##
-AT_SETUP([[%error-verbose and YYSTACK_USE_ALLOCA]])
+AT_SETUP([[parse.error=verbose and YYSTACK_USE_ALLOCA]])
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
#define YYSTACK_USE_ALLOCA 1
}
-%error-verbose
+%define parse.error verbose
%%
%%
]AT_YYERROR_DEFINE[
-/* Induce two syntax error messages (which requires full error
- recovery by shifting 3 tokens) in order to detect any loss of the
- reallocated buffer. */
+ /* 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_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
-## ------------------------- ##
-## %error-verbose overflow. ##
-## ------------------------- ##
+## ------------------------------ ##
+## parse.error=verbose overflow. ##
+## ------------------------------ ##
# Imagine the case where YYSTACK_ALLOC_MAXIMUM = YYSIZE_MAXIMUM and an
# invocation of yysyntax_error has caused yymsg_alloc to grow to exactly
# size calculation would return YYSIZE_MAXIMUM to yyparse. Then,
# yyparse would invoke yyerror using the old contents of yymsg.
-AT_SETUP([[%error-verbose overflow]])
+AT_SETUP([[parse.error=verbose overflow]])
+
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
#define YYMAXDEPTH 100
}
-%error-verbose
+%define parse.error verbose
%%
%%
]AT_YYERROR_DEFINE[
-/* Induce two syntax error messages (which requires full error
- recovery by shifting 3 tokens). */
+ /* Induce two syntax error messages (which requires full error
+ recovery by shifting 3 tokens). */
]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[
-%error-verbose
+%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.
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_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_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 }])
-## FIXME: Improve parsing of parse-param and use the generated
-## yyerror.
AT_DATA_GRAMMAR([input.y],
-[[%defines
-%locations
+[[%locations
%skeleton "$1"
%union { int ival; }
%parse-param { int x }
// Spaces, tabs, and new lines.
%parse-param { @&t@
- int y @&t@
+@tb@ int y@tb@ @&t@
@&t@
@&t@
}
%{
-#include <stdio.h>
-#include <stdlib.h>
-
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
%}
int
main (void)
{
- return !!yyparse(1, 2);
+ return yyparse(1, 2);
}
]])
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