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# Checking Push Parsing. -*- Autotest -*-
# Copyright (C) 2007, 2009-2015, 2018-2020 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
# 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, see <http://www.gnu.org/licenses/>.
AT_BANNER([[Push Parsing Tests]])
## -------------------------------- ##
## Memory Leak for Early Deletion. ##
## -------------------------------- ##
AT_SETUP([[Memory Leak for Early Deletion]])
# Requires Valgrind.
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([[input.y]],
[[
%{
#include <assert.h>
#include <stdio.h>
#define YYINITDEPTH 1
]AT_YYERROR_DECLARE[
%}
%define api.pure
%define api.push-pull push
%%
start: 'a' 'b' 'c' ;
%%
]AT_YYERROR_DEFINE[
int
main (void)
{
yypstate *ps;
/* Make sure we don't try to free ps->yyss in this case. */
ps = yypstate_new ();
yypstate_delete (ps);
/* yypstate_delete used to leak ps->yyss if the stack was reallocated but the
parse did not return on success, syntax error, or memory exhaustion. */
ps = yypstate_new ();
assert (yypush_parse (ps, 'a', YY_NULLPTR) == YYPUSH_MORE);
yypstate_delete (ps);
ps = yypstate_new ();
assert (yypush_parse (ps, 'a', YY_NULLPTR) == YYPUSH_MORE);
assert (yypush_parse (ps, 'b', YY_NULLPTR) == YYPUSH_MORE);
yypstate_delete (ps);
return 0;
}
]])
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([[-o input.c input.y]])
AT_COMPILE([[input]])
AT_PARSER_CHECK([[input]])
AT_CLEANUP
## --------------------------- ##
## Multiple impure instances. ##
## --------------------------- ##
AT_SETUP([[Multiple impure instances]])
m4_pushdef([AT_MULTIPLE_IMPURE_INSTANCES_CHECK], [
AT_BISON_OPTION_PUSHDEFS([%define api.push-pull $1])
AT_DATA_GRAMMAR([[input.y]],
[[
%{
#include <assert.h>
#include <stdio.h>
]AT_YYERROR_DECLARE[
]m4_if([$1], [[both]], [AT_YYLEX_DECLARE([])])[
%}
%define api.push-pull ]$1[
%%
start: ;
%%
]AT_YYERROR_DEFINE[
]m4_if([$1], [[both]], [AT_YYLEX_DEFINE])[
int
main (void)
{
int i;
for (i = 0; i < 2; ++i)
{
yypstate *ps = yypstate_new ();
assert (ps);
assert (yypstate_new () == YY_NULLPTR);
]m4_if([$1], [[both]], [[assert (yyparse () == 2)]])[;
yychar = 0;
assert (yypush_parse (ps) == 0);
assert (yypstate_new () == YY_NULLPTR);
]m4_if([$1], [[both]], [[assert (yyparse () == 2)]])[;
yypstate_delete (ps);
}
return 0;
}
]])
AT_BISON_CHECK([[-o input.c input.y]])
AT_COMPILE([[input]])
AT_PARSER_CHECK([[input]])
AT_BISON_OPTION_POPDEFS
])
AT_MULTIPLE_IMPURE_INSTANCES_CHECK([[both]])
AT_MULTIPLE_IMPURE_INSTANCES_CHECK([[push]])
m4_popdef([AT_MULTIPLE_IMPURE_INSTANCES_CHECK])
AT_CLEANUP
## ----------------------- ##
## Unsupported Skeletons. ##
## ----------------------- ##
AT_SETUP([[Unsupported Skeletons]])
AT_BISON_OPTION_PUSHDEFS
AT_DATA([[input.y]],
[[%glr-parser
%define api.push-pull push
%%
start: ;
]])
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([[input.y]], [[1]], [],
[[input.y:2.1-26: error: %define variable 'api.push-pull' is not used
]])
AT_CLEANUP
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