tests/headers.at

   1 # Bison Parser Headers.                               -*- Autotest -*-
   2 # Copyright 2001 Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17 # 02111-1307, USA.
  18
  19 AT_BANNER([[Parser Headers.]])
  20
  21
  22 ## ---------------------- ##
  23 ## %union and --defines.  ##
  24 ## ---------------------- ##
  25
  26
  27 AT_SETUP([%union and --defines])
  28
  29 AT_DATA([input.y],
  30 [%union
  31 {
  32   int   integer;
  33   char *string ;
  34 }
  35 %%
  36 exp: {};
  37 ])
  38
  39 AT_CHECK([bison --defines input.y])
  40
  41 AT_CLEANUP
  42
  43
  44
  45 ## --------------------- ##
  46 ## Invalid CPP headers.  ##
  47 ## --------------------- ##
  48
  49 # AT_TEST_CPP_GUARD_H([INPUT-FILE-BASE)
  50 # -------------------------------------
  51 m4_define([AT_TEST_CPP_GUARD_H],
  52 [AT_SETUP([Invalid CPP guards: $1])
  53
  54 # Possibly create inner directories.
  55 dirname=`AS_DIRNAME([$1])`
  56 AS_MKDIR_P([$dirname])
  57
  58 AT_DATA([$1.y],
  59 [%%
  60 dummy:
  61 ])
  62
  63 AT_CHECK([bison --defines=$1.h $1.y])
  64
  65 # CPP should be happy with it.
  66 AT_CHECK([$CC -E $1.h], 0, [ignore])
  67
  68 AT_CLEANUP
  69 ])
  70
  71 AT_TEST_CPP_GUARD_H([input/input])
  72 AT_TEST_CPP_GUARD_H([9foo])
  73
  74
  75
  76 ## ---------------- ##
  77 ## export YYLTYPE.  ##
  78 ## ---------------- ##
  79
  80
  81 AT_SETUP([export YYLTYPE])
  82
  83 AT_DATA([input.y],
  84 [%locations
  85 %{
  86 #include <stdio.h>
  87 #include <stdlib.h>
  88
  89 static int
  90 yylex (void)
  91 {
  92   return EOF;
  93 }
  94
  95 static void
  96 yyerror (const char *msg)
  97 {
  98   fprintf (stderr, "%s\n", msg);
  99 }
 100
 101 %}
 102 %%
 103 exp:;
 104 ])
 105
 106 AT_CHECK([bison --defines input.y -o input.c])
 107
 108 # YYLTYPE should be defined, and YYLLOC declared.
 109 AT_DATA([caller.c],
 110 [[#include "input.h"
 111 YYLTYPE *yyllocp = &yylloc;
 112
 113 int yyparse (void);
 114
 115 int
 116 main (void)
 117 {
 118   return yyparse ();
 119 }
 120 ]])
 121
 122 # Link and execute, just to make sure everything is fine (and in
 123 # particular, that YYLLOC is indeed defined somewhere).
 124 AT_CHECK([$CC $CFLAGS $CPPFLAGS caller.c input.c -o caller], 0, [], [ignore])
 125 AT_CHECK([caller])
 126
 127 AT_CLEANUP