tests/headers.at

   1 # Bison Parser Headers.                               -*- Autotest -*-
   2
   3 # Copyright (C) 2001-2002, 2006-2007, 2009-2012 Free Software
   4 # Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 AT_BANNER([[Parser Headers.]])
  20
  21
  22 ## --------------------- ##
  23 ## Invalid CPP headers.  ##
  24 ## --------------------- ##
  25
  26 # AT_TEST_CPP_GUARD_H(BASE-NAME, [DIRECTIVES])
  27 # --------------------------------------------
  28 # FIXME: Much of this can be covered by calc.at.
  29 m4_define([AT_TEST_CPP_GUARD_H],
  30 [AT_SETUP([Invalid CPP guards: $2 --defines=$1.h])
  31 AT_BISON_OPTION_PUSHDEFS([$2])
  32 # Possibly create inner directories.
  33 dirname=`AS_DIRNAME([$1])`
  34 AS_MKDIR_P([$dirname])
  35
  36 AT_DATA_GRAMMAR([$1.y],
  37 [$2
  38 %{
  39 #include <$1.h>
  40 ]AT_YYERROR_DECLARE_EXTERN[
  41 ]AT_YYLEX_DECLARE_EXTERN[
  42 %}
  43 %%
  44 dummy:;
  45 %%
  46 #include <$1.h>
  47 ])
  48
  49 AT_BISON_CHECK([--defines=$1.h --output=$1.c $1.y])
  50
  51 AT_COMPILE([$1.o], [-I. -c $1.c])
  52
  53 AT_BISON_OPTION_POPDEFS
  54 AT_CLEANUP
  55 ])
  56
  57 AT_TEST_CPP_GUARD_H([input/input])
  58 AT_TEST_CPP_GUARD_H([9foo])
  59 AT_TEST_CPP_GUARD_H([input/input], [%glr-parser])
  60 AT_TEST_CPP_GUARD_H([9foo],        [%glr-parser])
  61
  62
  63
  64 ## ---------------- ##
  65 ## export YYLTYPE.  ##
  66 ## ---------------- ##
  67
  68
  69 AT_SETUP([export YYLTYPE])
  70
  71 AT_DATA_GRAMMAR([input.y],
  72 [%locations
  73
  74 %name-prefix "my_"
  75 %{
  76 #include <stdio.h>
  77 #include <stdlib.h>
  78
  79 static int
  80 my_lex (void)
  81 {
  82   return EOF;
  83 }
  84
  85 static void
  86 my_error (const char *msg)
  87 {
  88   fprintf (stderr, "%s\n", msg);
  89 }
  90
  91 %}
  92 %%
  93 exp:;
  94 ])
  95
  96 AT_BISON_CHECK([--defines -o input.c input.y])
  97
  98 # YYLTYPE should be defined, and MY_LLOC declared.
  99 AT_DATA([caller.c],
 100 [[#include "input.h"
 101 YYLTYPE *my_llocp = &my_lloc;
 102
 103 int my_parse (void);
 104
 105 int
 106 main (void)
 107 {
 108   return my_parse ();
 109 }
 110 ]])
 111
 112 # Link and execute, just to make sure everything is fine (and in
 113 # particular, that MY_LLOC is indeed defined somewhere).
 114 AT_COMPILE([caller.o])
 115 AT_COMPILE([input.o])
 116 AT_COMPILE([caller], [caller.o input.o])
 117 AT_PARSER_CHECK([./caller])
 118
 119 AT_CLEANUP
 120
 121 ## ----------------- ##
 122 ## Several parsers.  ##
 123 ## ----------------- ##
 124
 125 AT_SETUP([Several parsers])
 126
 127 # AT_TEST([PREFIX], [DIRECTIVES])
 128 # -------------------------------
 129 # Generate and compile to *.o.  Make sure there is no (allowed) YY*
 130 # nor yy* identifiers in the header.  Check that headers are
 131 # self-contained, and can be compiled by a C++ compiler.
 132 m4_pushdef([AT_TEST],
 133 [AT_BISON_OPTION_PUSHDEFS([%define api.prefix "$1_" $2])
 134 AT_DATA_GRAMMAR([$1.y],
 135 [[%define api.prefix "$1_"
 136 $2
 137 %error-verbose
 138 %union
 139 {
 140   int integer;
 141 }
 142 %{
 143 #include <stdio.h>
 144   ]AT_YYERROR_DECLARE[
 145   ]AT_YYLEX_DECLARE[
 146 %}
 147 %%
 148 exp:
 149   'x' '1' { printf ("x1\n"); }
 150 | 'x' '2' { printf ("x2\n"); }
 151 | 'x' '3' { printf ("x3\n"); }
 152 | 'x' '4' { printf ("x4\n"); }
 153 | 'x' '5' { printf ("x5\n"); }
 154 | 'x' '6' { printf ("x6\n"); }
 155 | 'x' '7' { printf ("x7\n"); }
 156 | 'x' '8' { printf ("x8\n"); }
 157 ;
 158
 159 %%
 160 ]AT_YYERROR_DEFINE[
 161 ]AT_YYLEX_DEFINE(["$1"])[
 162 ]])
 163
 164 AT_BISON_CHECK([-d -o $1.AT_SKEL_CC_IF([cc], [c]) $1.y])
 165
 166 AT_LANG_COMPILE([$1.o])
 167 AT_CHECK([[echo "$1" >>expout]])
 168
 169 AT_BISON_OPTION_POPDEFS
 170 ])# AT_TEST
 171
 172 AT_DATA([main.cc],
 173 [AT_DATA_SOURCE_PROLOGUE
 174 [// If we are compiling with CC=$CXX, then do not load the C headers
 175 // inside extern "C", since they were _not_ compiled this way.
 176 #if ! CC_IS_CXX
 177 extern "C"
 178 {
 179 #endif
 180   #include "x1.h"
 181   #include "x2.h"
 182   #include "x3.h"
 183   #include "x4.h"
 184   #include "x6.h"
 185   #include "x7.h"
 186   #include "x8.h"
 187 #if ! CC_IS_CXX
 188 }
 189 #endif
 190 #include "x5.hh"
 191 //#include "x6.hh"
 192
 193 #define RUN(S)                                  \
 194   do {                                          \
 195     int res = S;                                \
 196     if (res)                                    \
 197       std::cerr << #S": " << res << std::endl;  \
 198   } while (false)
 199
 200 int
 201 main (void)
 202 {
 203   RUN(x1_parse());
 204   RUN(x2_parse());
 205   RUN(x3_parse());
 206   RUN(x4_parse());
 207   x5_::parser p5;
 208   RUN(p5.parse());
 209   RUN(x6_parse());
 210   RUN(x7_parse());
 211   RUN(x8_parse());
 212 //  x6_::parser p6;
 213 //  RUN(p6.parse());
 214   return 0;
 215 }
 216 ]])# main.cc
 217
 218 AT_TEST([x1], [])
 219 AT_TEST([x2], [%locations %debug])
 220 AT_TEST([x3], [%glr-parser])
 221 AT_TEST([x4], [%locations %debug %glr-parser])
 222 AT_TEST([x5], [%locations %debug %language "c++"])
 223 AT_TEST([x6], [%define api.pure])
 224 AT_TEST([x7], [%define api.push-pull both])
 225 AT_TEST([x8], [%define api.pure %define api.push-pull both])
 226 #AT_TEST([x5], [%locations %language "c++" %glr-parser])
 227
 228 # Check there is no 'yy' left.
 229 # C++ output relies on namespaces and still uses yy a lot.
 230 #
 231 # Check there is no 'YY' left.
 232 # Ignore comments, YYChar (template parameter), YYPARSE_PARAM
 233 # (obsolete), YYPUSH_MORE(_DEFINED)?  (constant definition),
 234 # YY_\w+_INCLUDED (header guards).
 235 #
 236 # YYDEBUG (not renamed) can be read, but not changed.
 237 AT_CHECK([[$PERL -n -0777 -e '
 238   s{/\*.*?\*/}{}gs;
 239   s{//.*}{}g;
 240   s{\b(YYChar
 241       |YYPARSE_PARAM
 242       |YYPUSH_MORE(_DEFINED)?
 243       |YY_\w+_INCLUDED
 244       |YY_NULL
 245       |(defined|if)\ YYDEBUG
 246       )\b}{}gx;
 247   while (/^(.*YY.*)$/gm)
 248   {
 249     print "$ARGV: invalid exported YY: $1\n";
 250   }
 251   if ($ARGV =~ /\.h$/)
 252   {
 253     while (/^(.*yy.*)$/gm)
 254     {
 255       print "$ARGV: invalid exported yy: $1\n";
 256     }
 257   }
 258 ' -- *.hh *.h]])
 259
 260 # Check that the headers are self-contained, and protected against
 261 # multiple inclusions.  While at it, check they are sane for C++.
 262 for h in *.h *.hh
 263 do
 264   # No shell expansion with AT_DATA.
 265   cat >$h.cc <<EOF
 266 AT_DATA_SOURCE_PROLOGUE
 267 #include "$h"
 268 #include "$h"
 269 EOF
 270   AT_COMPILE_CXX([$h.o])
 271 done
 272
 273 # Do this late, so that other checks have been performed.
 274 AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
 275
 276 AT_COMPILE_CXX([parser], [[x[1-8].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])
 277 AT_PARSER_CHECK([./parser], [0], [[expout]])
 278
 279 m4_popdef([AT_TEST])
 280
 281 AT_CLEANUP