[PATCH] {yacc-work} coverage: test mixed C/C++ yacc-generated parsers in the same dir

[Stefano Lattarini]

A final testcase I'd like to check in before submitting the final
patch for automake bug#7648 and PR automake/491 (patch not yet
complete ATM, but I think I'm almost there).  It checks that many
different Yacc parsers (both C and C++) can co-exists in the same
directory.

OK for yacc-work?  I will push in 72 hours if there is no objection.

Regards,
  Stefano

From bbc40f6216b38b96ec5ab54e03912174344f7030 Mon Sep 17 00:00:00 2001
From: Stefano Lattarini <address@hidden>
Date: Sun, 10 Apr 2011 12:06:45 +0200
Subject: [PATCH] coverage: test mixed C/C++ yacc-generated parsers in the same 
dir

* tests/yacc-mix-c-cxx.test: New test.
* tests/Makefile.am (TESTS): Update.
---
 ChangeLog                 |    6 ++
 tests/Makefile.am         |    1 +
 tests/Makefile.in         |    1 +
 tests/yacc-mix-c-cxx.test |  165 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 173 insertions(+), 0 deletions(-)
 create mode 100755 tests/yacc-mix-c-cxx.test

diff --git a/ChangeLog b/ChangeLog
index daba1c3..6462d5c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2011-04-10  Stefano Lattarini  <address@hidden>
 
+       coverage: test mixed C/C++ yacc-generated parsers in the same dir
+       * tests/yacc-mix-c-cxx.test: New test.
+       * tests/Makefile.am (TESTS): Update.
+
+2011-04-10  Stefano Lattarini  <address@hidden>
+
        cosmetics: fix typos and wording in some yacc tests
        * tests/yacc-cxx.test (foo.cc): Clarify comment about the content
        of this file being valid C++ but invalid C.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0de0211..3794ef1 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -813,6 +813,7 @@ yacc-nodist.test \
 yaccpp.test \
 yaccvpath.test \
 yacc-d-vpath.test \
+yacc-mix-c-cxx.test \
 yacc-weirdnames.test \
 yflags.test \
 yflags2.test \
diff --git a/tests/Makefile.in b/tests/Makefile.in
index f9949c3..519bdfc 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -1080,6 +1080,7 @@ yacc-nodist.test \
 yaccpp.test \
 yaccvpath.test \
 yacc-d-vpath.test \
+yacc-mix-c-cxx.test \
 yacc-weirdnames.test \
 yflags.test \
 yflags2.test \
diff --git a/tests/yacc-mix-c-cxx.test b/tests/yacc-mix-c-cxx.test
new file mode 100755
index 0000000..6795c92
--- /dev/null
+++ b/tests/yacc-mix-c-cxx.test
@@ -0,0 +1,165 @@
+#! /bin/sh
+# Copyright (C) 2011 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, see <http://www.gnu.org/licenses/>.
+
+# Check that many different Yacc parsers (both C and C++) can co-exists
+# in the same directory.
+
+required=yacc
+. ./defs || Exit 1
+
+set -e
+
+distdir=$me-1.0
+
+cat >> configure.in << 'END'
+AC_PROG_CC
+AC_PROG_CXX
+AC_PROG_YACC
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+bin_PROGRAMS = c1 c2 cxx1 cxx2 cxx3
+AM_YFLAGS = -d
+
+c1_SOURCES = p.y p.h 1.c
+c2_SOURCES = p.y 2.c
+c2_YFLAGS =
+
+cxx1_SOURCES = parse.yy main1.cc parse.hh
+
+cxx2_SOURCES = parse2.y++ main2.c++
+cxx2_YFLAGS =
+
+cxx3_SOURCES = parse3.yxx main3.cxx
+BUILT_SOURCES = parse3.hxx
+END
+
+# The content of all the .c and .y files created below is valid C but
+# deliberately invalid as C++.
+# Vice versa, the content of all the .c++, .cxx, .cc, .y++, .yxx and
+# .yy files created below is valid C++ but deliberately invalid C.
+
+cat > p.y <<'END'
+%{
+int yylex (void) { int new = 0; return new; }
+void yyerror (char *s) { return; }
+%}
+%token ZARDOZ
+%%
+x : 'x' {};
+%%
+END
+
+cat > 1.c <<'END'
+#include "p.h"
+int main ()
+{
+    int new = ZARDOZ;
+    return yyparse () + new;
+}
+
+END
+
+cat > 2.c <<'END'
+int main ()
+{
+    int yyparse ();
+    int new = 0;
+    return yyparse () + new;
+}
+END
+
+cat > parse.yy <<'END'
+%{
+#include <cstdlib>
+#include "parse.hh"
+int yylex (void) { return 0; }
+void yyerror (const char *s) { return; }
+%}
+%token FOOBAR
+%%
+x : 'x' {};
+%%
+END
+
+cat > parse2.y++ <<'END'
+%{
+#include <cstdlib>
+int yylex (void) { return 0; }
+void yyerror (const char *s) { return; }
+%}
+%%
+x : 'x' {};
+%%
+END
+
+cat > main1.cc <<'END'
+using namespace std;
+#include "parse.hh"
+int main (int argc, char **argv)
+{
+    int yyparse (void);
+    return yyparse () + FOOBAR;
+}
+END
+
+cat > main2.c++ <<'END'
+using namespace std;
+int main (int argc, char **argv)
+{
+    int yyparse (void);
+    return yyparse ();
+}
+END
+
+edit () { sed -e 's/FOOBAR/BAZQUUX/' -e 's/"parse\.hh"/"parse3.hxx"/'; }
+edit <parse.yy >parse3.yxx
+edit <main1.cc >main3.cxx
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE -a
+
+./configure
+
+$MAKE
+ls -l # For debugging.
+
+test -f p.c
+test -f p.h
+test -f c2-p.c
+test ! -r c2-p.h
+
+test -f parse.cc
+test -f parse.hh
+test -f parse3.cxx
+test -f parse3.hxx
+
+test -f cxx2-parse2.c++
+test ! -r parse2.h++
+test ! -r cxx2-parse2.h++
+
+# Minimal checks about recovering from header removal.
+rm -f p.h parse.hh parse3.hxx
+$MAKE p.h parse.hh
+test -f p.h
+test -f parse.hh
+test ! -r parse3.hxx
+$MAKE
+test -f parse3.hxx
+
+:
-- 
1.7.2.3