# 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_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)
{
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:1.29-32: warning: useless precedence and associativity for "||" [-Wprecedence]
+input.y:2.29-32: 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
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;
%%
}
$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
[%{
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 ';';
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:
%%
]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 [-Wother]
-input.y:27.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias" [-Wother]
+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:18.7-9: warning: useless precedence and associativity for TK1 [-Wprecedence]
]])
AT_COMPILE([[input]])
AT_PARSER_CHECK([[./input]])
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
#define YYSTACK_USE_ALLOCA 1
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
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%code {
- #include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
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]], [],
+ -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]], [],
+ -o input.c input.y]], [[0]], [],
[[input.y: warning: 8 shift/reduce conflicts [-Wconflicts-sr]
]])
AT_COMPILE([[input]])
# 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