Merge branch 'branch-2.6' into maint

[bison.git] / tests / headers.at

diff --git a/tests/headers.at b/tests/headers.at
index 07f1d1bc9359e7d44595714fbf4eebb7611ae745..8a05d34d8ddfe1cb314aa430ced0d19a30093290 100644 (file)
--- a/tests/headers.at
+++ b/tests/headers.at
@@ -126,11 +126,12 @@ AT_SETUP([Several parsers])
 
 # AT_TEST([PREFIX], [DIRECTIVES])
 # -------------------------------
 
 # AT_TEST([PREFIX], [DIRECTIVES])
 # -------------------------------

-# Generate and compile to *.o.  Make sure there is no YY* nor yy* in
-# the header (but YYDEBUG and YYPARSE_PARAM).
+# Generate and compile to *.o.  Make sure there is no (allowed) YY*
+# nor yy* identifiers in the header.  Check that headers are
+# self-contained, and can be compiled by a C++ compiler.

 m4_pushdef([AT_TEST],
 [AT_BISON_OPTION_PUSHDEFS([%define api.prefix "$1_" $2])
 m4_pushdef([AT_TEST],
 [AT_BISON_OPTION_PUSHDEFS([%define api.prefix "$1_" $2])

-AT_DATA_GRAMMAR([$1.AT_SKEL_CC_IF([yy], [y])],
+AT_DATA_GRAMMAR([$1.y],

 [[%define api.prefix "$1_"
 $2
 %error-verbose
 [[%define api.prefix "$1_"
 $2
 %error-verbose


@@ -160,21 +161,24 @@ exp:
 ]AT_YYLEX_DEFINE(["$1"])[
 ]])
 
 ]AT_YYLEX_DEFINE(["$1"])[
 ]])
 

-AT_BISON_CHECK([-d -o AT_SKEL_CC_IF([$1.cc $1.yy], [$1.c $1.y])])
+AT_BISON_CHECK([-d -o $1.AT_SKEL_CC_IF([cc], [c]) $1.y])
+
+# Check there is no 'yy' left.

 # C++ output relies on namespaces and still uses yy a lot.
 AT_SKEL_CC_IF([],
   [AT_CHECK([$EGREP yy $1.h], [1])])
 
 # C++ output relies on namespaces and still uses yy a lot.
 AT_SKEL_CC_IF([],
   [AT_CHECK([$EGREP yy $1.h], [1])])
 

-# Ignore comments. Ignore YYPARSE_PARAM (obsolete) and
-# YYPUSH_MORE(_DEFINED)? (whose definition is constant).
+# Check there is not 'YY' left.
+# Ignore comments, YYPARSE_PARAM (obsolete), YYPUSH_MORE(_DEFINED)?
+# (constant definition), YY_\w+_INCLUDED (header guards).

 #
 # YYDEBUG (not renamed) can be read, but not changed.
 AT_CHECK([[sed -ne 's,/\*[^*]*\*/,,g;s,//.*,,' \
                 -e '/YY/p' ]$1.AT_SKEL_CC_IF([hh], [h])[ |
 #
 # YYDEBUG (not renamed) can be read, but not changed.
 AT_CHECK([[sed -ne 's,/\*[^*]*\*/,,g;s,//.*,,' \
                 -e '/YY/p' ]$1.AT_SKEL_CC_IF([hh], [h])[ |

-     $EGREP -wv 'YY(PARSE_PARAM|PUSH_MORE(_DEFINED)?)|(defined|if) YYDEBUG']],
+     $EGREP -wv 'YY(PARSE_PARAM|PUSH_MORE(_DEFINED)?|_[0-9A-Z_]+_INCLUDED)|(defined|if) YYDEBUG']],

          [1])
          [1])

-AT_LANG_COMPILE([$1.o])

 
 

+AT_LANG_COMPILE([$1.o])

 AT_CHECK([[echo "$1" >>expout]])
 
 AT_BISON_OPTION_POPDEFS
 AT_CHECK([[echo "$1" >>expout]])
 
 AT_BISON_OPTION_POPDEFS


@@ -182,8 +186,12 @@ AT_BISON_OPTION_POPDEFS
 
 AT_DATA([main.cc],
 [AT_DATA_SOURCE_PROLOGUE
 
 AT_DATA([main.cc],
 [AT_DATA_SOURCE_PROLOGUE

-[extern "C"
+[// If we are compiling with CC=$CXX, then do not load the C headers
+// inside extern "C", since they were _not_ compiled this way.
+#if ! CC_IS_CXX
+extern "C"

 {
 {

+#endif

   #include "x1.h"
   #include "x2.h"
   #include "x3.h"
   #include "x1.h"
   #include "x2.h"
   #include "x3.h"


@@ -191,7 +199,9 @@ AT_DATA([main.cc],
   #include "x6.h"
   #include "x7.h"
   #include "x8.h"
   #include "x6.h"
   #include "x7.h"
   #include "x8.h"

+#if ! CC_IS_CXX

 }
 }

+#endif

 #include "x5.hh"
 //#include "x6.hh"
 
 #include "x5.hh"
 //#include "x6.hh"
 


@@ -230,7 +240,23 @@ AT_TEST([x7], [%define api.push-pull both])
 AT_TEST([x8], [%define api.pure %define api.push-pull both])
 #AT_TEST([x5], [%locations %language "c++" %glr-parser])
 
 AT_TEST([x8], [%define api.pure %define api.push-pull both])
 #AT_TEST([x5], [%locations %language "c++" %glr-parser])
 

-AT_COMPILE_CXX([parser], [[x[1-8].o main.cc]])
+# Check that the headers are self-contained, and protected against
+# multiple inclusions.  While at it, check they are sane for C++.
+for h in *.h *.hh
+do
+  # No shell expansion with AT_DATA.
+  cat >$h.cc <<EOF
+AT_DATA_SOURCE_PROLOGUE
+#include "$h"
+#include "$h"
+EOF
+  AT_COMPILE_CXX([$h.o])
+done
+
+# Do this late, so that other checks have been performed.
+AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
+
+AT_COMPILE_CXX([parser], [[x[1-8].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])

 AT_CHECK([./parser], [0], [[expout]])
 
 m4_popdef([AT_TEST])
 AT_CHECK([./parser], [0], [[expout]])
 
 m4_popdef([AT_TEST])