# Executing Actions. -*- Autotest -*-
-# Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 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
# 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.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
AT_BANNER([[User Actions.]])
# action.
AT_DATA_GRAMMAR([[input.y]],
-[[%{
+[[%error-verbose
+%debug
+%{
# include <stdio.h>
# include <stdlib.h>
static void yyerror (const char *msg);
static int yylex (void);
-# define YYDEBUG 1
-# define YYERROR_VERBOSE 1
%}
%%
exp: { putchar ('0'); }
AT_SETUP([Exotic Dollars])
AT_DATA_GRAMMAR([[input.y]],
-[[%{
+[[%error-verbose
+%debug
+%{
# include <stdio.h>
# include <stdlib.h>
static void yyerror (const char *msg);
static int yylex (void);
-# define YYDEBUG 1
-# define YYERROR_VERBOSE 1
+# define USE(Var)
%}
%union
exp: a_1 a_2 { $<val>$ = 3; } { $<val>$ = $<val>3 + 1; } a_5
sum_of_the_five_previous_values
{
+ USE (($1, $2, $<foo>3, $<foo>4, $5));
printf ("%d\n", $6);
}
;
}
]])
-AT_CHECK([bison -d -v -o input.c input.y])
+AT_CHECK([bison -d -v -o input.c input.y], 0)
AT_COMPILE([input])
AT_PARSER_CHECK([./input], 0,
[[15
# helping macros. So don't put any directly in the Bison file.
AT_BISON_OPTION_PUSHDEFS([$5])
AT_DATA_GRAMMAR([[input.y]],
-[[%{
+[[%start-header {
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
]AT_LALR1_CC_IF(
[#define RANGE(Location) (Location).begin.line, (Location).end.line],
[#define RANGE(Location) (Location).first_line, (Location).last_line])
-[%}
+[}
$5]
m4_ifval([$6], [%union
{
int ival;
}])
-[
-%{
-]AT_LALR1_CC_IF([typedef yy::Location YYLTYPE;
+AT_LALR1_CC_IF([%define "global_tokens_and_yystype"])
+m4_ifval([$6], [[%end-header {]], [[%start-header {]])
+AT_LALR1_CC_IF([typedef yy::location YYLTYPE;
m4_ifval([$6], , [#define YYSTYPE int])])
[static int yylex (]AT_LEX_FORMALS[);
]AT_LALR1_CC_IF([], [static void yyerror (const char *msg);])
-[%}
+[}
-]m4_ifval([$6], [%type <ival> '(' 'x' 'y' ')' ';' thing line input])[
+]m4_ifval([$6], [%type <ival> '(' 'x' 'y' ')' ';' thing line input END])[
+/* FIXME: This %printer isn't actually tested. */
%printer
{
]AT_LALR1_CC_IF([debug_stream () << $$;],
{ printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
'y'
+%token END 0
+%destructor
+ { printf ("Freeing token END (%d@%d-%d)\n", $$, RANGE (@$)); }
+ END
+
%%
/*
This grammar is made to exercise error recovery.
printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
}
| line input /* Right recursive to load the stack so that popping at
- EOF can be exercised. */
+ END can be exercised. */
{
$$ = 2;
printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
;
%%
/* Alias to ARGV[1]. */
-const char *yysource = 0;
+const char *source = 0;
static int
yylex (]AT_LEX_FORMALS[)
AT_LOC.last_line = AT_LOC.last_column = AT_LOC.first_line + 9;
])[
- if (yysource[c])
- printf ("sending: '%c'", yysource[c]);
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
else
- printf ("sending: EOF");
+ printf ("sending: END");
printf (" (%d@%d-%d)\n", c, RANGE (]AT_LOC[));
- return yysource[c];
+ return source[c];
}
]AT_LALR1_CC_IF(
[/* A C++ error reporting function. */
void
-yy::Parser::error_ ()
+yy::parser::error (const location& l, const std::string& m)
{
- printf ("%d-%d: %s\n", RANGE (location), message.c_str());
+ printf ("%d-%d: %s\n", RANGE (l), m.c_str());
}
static bool yydebug;
int
yyparse ()
{
- yy::Parser parser;
+ yy::parser parser;
parser.set_debug_level (yydebug);
return parser.parse ();
}
int
main (int argc, const char *argv[])
{
+ int status;
yydebug = !!getenv ("YYDEBUG");
assert (argc == 2);
- yysource = argv[1];
- if (yyparse ())
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
{
- printf ("Parsing FAILED.\n");
- exit (1);
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
}
- printf ("Successful parse.\n");
- return 0;
+ return status;
}
]])
thing (1@10-19): 'x' (1@10-19)
sending: ')' (2@20-29)
line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
-sending: EOF (3@30-39)
+sending: END (3@30-39)
input (0@29-29): /* Nothing */
input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing token END (3@30-39)
+Freeing nterm input (2@0-29)
Successful parse.
]])
Freeing token 'y' (1@10-19)
sending: ')' (2@20-29)
line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
-sending: EOF (3@30-39)
+sending: END (3@30-39)
input (0@29-29): /* Nothing */
input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing token END (3@30-39)
+Freeing nterm input (2@0-29)
Successful parse.
]])
input (2@100-129): line (10@100-129) input (0@129-129)
input (2@70-129): line (7@70-99) input (2@100-129)
input (2@0-129): line (-1@0-69) input (2@70-129)
-130-139: syntax error, unexpected 'y', expecting $end
+130-139: syntax error, unexpected 'y', expecting END
Freeing nterm input (2@0-129)
Freeing token 'y' (13@130-139)
Parsing FAILED.
]])
+
+# Syntax error caught by the parser where lookahead = END
+# --------------------------------------------------------
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'x'
+AT_PARSER_CHECK([./input '(x)(x)x'], 1,
+[[sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: '(' (3@30-39)
+sending: 'x' (4@40-49)
+thing (4@40-49): 'x' (4@40-49)
+sending: ')' (5@50-59)
+line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59)
+sending: 'x' (6@60-69)
+thing (6@60-69): 'x' (6@60-69)
+sending: END (7@70-79)
+70-79: syntax error, unexpected END, expecting 'x'
+Freeing nterm thing (6@60-69)
+Freeing nterm line (3@30-59)
+Freeing nterm line (0@0-29)
+Freeing token END (7@70-79)
+Parsing FAILED.
+]])
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+AT_YACC_IF([
+AT_PARSER_CHECK([./input '(x)(x)(x)(x)(x)(x)(x)'], 2,
+[[sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: '(' (3@30-39)
+sending: 'x' (4@40-49)
+thing (4@40-49): 'x' (4@40-49)
+sending: ')' (5@50-59)
+line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59)
+sending: '(' (6@60-69)
+sending: 'x' (7@70-79)
+thing (7@70-79): 'x' (7@70-79)
+sending: ')' (8@80-89)
+line (6@60-89): '(' (6@60-69) thing (7@70-79) ')' (8@80-89)
+sending: '(' (9@90-99)
+sending: 'x' (10@100-109)
+thing (10@100-109): 'x' (10@100-109)
+sending: ')' (11@110-119)
+line (9@90-119): '(' (9@90-99) thing (10@100-109) ')' (11@110-119)
+sending: '(' (12@120-129)
+sending: 'x' (13@130-139)
+thing (13@130-139): 'x' (13@130-139)
+sending: ')' (14@140-149)
+line (12@120-149): '(' (12@120-129) thing (13@130-139) ')' (14@140-149)
+sending: '(' (15@150-159)
+sending: 'x' (16@160-169)
+thing (16@160-169): 'x' (16@160-169)
+sending: ')' (17@170-179)
+line (15@150-179): '(' (15@150-159) thing (16@160-169) ')' (17@170-179)
+sending: '(' (18@180-189)
+sending: 'x' (19@190-199)
+thing (19@190-199): 'x' (19@190-199)
+sending: ')' (20@200-209)
+200-209: memory exhausted
+Freeing nterm thing (19@190-199)
+Freeing nterm line (15@150-179)
+Freeing nterm line (12@120-149)
+Freeing nterm line (9@90-119)
+Freeing nterm line (6@60-89)
+Freeing nterm line (3@30-59)
+Freeing nterm line (0@0-29)
+Parsing FAILED (status 2).
+]])
+])
+
])
projects / bison.git / blobdiff