# Checking skeleton support. -*- Autotest -*-
-# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# Copyright (C) 2007, 2009-2013 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_SETUP([[Installed skeleton file names]])
+AT_BISON_OPTION_PUSHDEFS
m4_pushdef([AT_GRAM],
[[%{
#include <stdio.h>
- void yyerror (char const *msg);
+ ]AT_YYERROR_DECLARE[
int yylex (void);
%}
%%
-void
-yyerror (char const *msg)
-{
- fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[
int
yylex (void)
{
return 'a';
}
-
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
-AT_DATA([[input-cmd-line.y]],
+AT_DATA_GRAMMAR([[input-cmd-line.y]],
[AT_GRAM])
-AT_DATA([[input-gram.y]],
+AT_DATA_GRAMMAR([[input-gram.y]],
[[%skeleton "yacc.c"]
AT_GRAM])
m4_popdef([AT_GRAM])
+AT_BISON_OPTION_POPDEFS
AT_CLEANUP
]])
AT_BISON_CHECK([[input.y]], [[1]], [[]],
-[[[Bison:b4_percent_define_default]:1.0: invalid value for %define Boolean variable `foo'
+[[<skeleton default value>: error: invalid value for %define Boolean variable 'foo'
]])
AT_CLEANUP
]])
AT_BISON_CHECK([[input1.y]], [[1]], [[]],
-[[input1.y: warning: foow fubar
-foow.y:2.3-5.3: warning: foowat fubar
-input1.y: fooc fubar
-fooc.y:1.1-10.5: foocat fubar
+[[input1.y: warning: foow fubar [-Wother]
+foow.y:2.3-5.3: warning: foowat fubar [-Wother]
+input1.y: error: fooc fubar
+fooc.y:1.1-10.5: error: foocat fubar
input1.y: fatal error: foof fubar
]])
]])
AT_BISON_CHECK([[input3.y]], [[1]], [[]],
-[[input3.y: fatal error: undefined %define variable `bogus' passed to b4_percent_define_get_loc
+[[input3.y: fatal error: b4_percent_define_get_loc: undefined %define variable 'bogus'
]])
AT_DATA([[skel4.c]],
]])
AT_BISON_CHECK([[input4.y]], [[1]], [[]],
-[[input4.y: fatal error: undefined %define variable `bogus' passed to b4_percent_define_get_syncline
+[[input4.y: fatal error: b4_percent_define_get_syncline: undefined %define variable 'bogus'
]])
AT_CLEANUP
]])
AT_BISON_CHECK([[input1.y]], [[1]], [[]],
-[[input1.y: non-fatal error
+[[input1.y: error: non-fatal error
input1.y: fatal error: M4 should exit immediately here
]])
]])
AT_BISON_CHECK([[input2.y]], [[1]], [[]],
-[[input2.y: warning: morning
+[[input2.y: warning: morning [-Wother]
foo.y:1.5-6: fatal error: M4 should exit immediately here
]])
AT_CLEANUP
+
+
+## ------------------------------------------------ ##
+## Fatal errors but M4 continues producing output. ##
+## ------------------------------------------------ ##
+
+# At one time, if Bison encountered a fatal error during M4 processing,
+# Bison failed to drain M4's output pipe. The result was a SIGPIPE.
+# On some platforms, the default disposition for SIGPIPE is terminate,
+# which was fine. On others, it's ignore, which caused M4 to report
+# the broken pipe to the user, but we don't want to bother the user with
+# that.
+
+# There is a race condition somewhere. That is, before the associated
+# fix, running this test group many times in a row would occasionally
+# produce a pass among all the failures.
+
+AT_SETUP([[Fatal errors but M4 continues producing output]])
+
+AT_DATA([[gen-skel.pl]],
+[[use warnings;
+use strict;
+my $M4 = "m4";
+my $DNL = "d"."nl";
+print "${M4}_divert_push(0)$DNL\n";
+print '@output(@,@)', "\n";
+(print "garbage"x10, "\n") for (1..1000);
+print "${M4}_divert_pop(0)\n";
+]])
+AT_CHECK([[$PERL gen-skel.pl > skel.c || exit 77]])
+
+AT_DATA([[input.y]],
+[[%skeleton "./skel.c"
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [[1]], [[]],
+[[input.y: fatal error: too many arguments for @output directive in skeleton
+]])
+
+AT_CLEANUP