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[bison.git] / tests / semantic.at

# Bison Semantic Parsers.                               -*- Autotest -*-
# Copyright 2001 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 2, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

AT_BANNER([[Semantic Parsers.]])

# Well, nothing, or almost, is known about semantic parsers.  For the
# time being, just make sure we still parse them properly.

## ---------------- ##
## Parsing Guards.  ##
## ---------------- ##


AT_SETUP([Parsing Guards])

AT_DATA([input.y],
[[%semantic-parser
%union {
  int ival;
}
%token <ival> INT
%type  <ival> exp
%%
exp: exp '+' exp { $$ = $1 + $3 }
   | exp '/' exp %guard { if ($3 == 0) yyerror = 1 } { $$ = $1 / $3 }
   | INT;
%%
]])

AT_CHECK([bison -v input.y -o input.c], 0, ignore, ignore)

AT_CLEANUP