t/yacc-line.sh

   1 #! /bin/sh
   2 # Copyright (C) 2001-2017 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, see <https://www.gnu.org/licenses/>.
  16
  17 # Check that automake yacc support ensures that yacc-generated C
  18 # files use correct "#line" directives.
  19 # See also sister test 'lex-line.test'.
  20
  21 required='cc yacc'
  22 . test-init.sh
  23
  24 cat >> configure.ac << 'END'
  25 AC_PROG_CC
  26 AC_PROG_YACC
  27 AC_OUTPUT
  28 END
  29
  30 mkdir dir
  31
  32 cat > Makefile.am << 'END'
  33 noinst_PROGRAMS = foo bar baz
  34 baz_YFLAGS = -d
  35 foo_SOURCES = zardoz.y
  36 bar_SOURCES = dir/quux.y
  37 baz_SOURCES = zardoz.y
  38 END
  39
  40 cat > zardoz.y << 'END'
  41 %{
  42 int yylex () { return 0; }
  43 void yyerror (char *s) { return; }
  44 %}
  45 %%
  46 x : 'x' {};
  47 %%
  48 int main(void)
  49 {
  50   return yyparse ();
  51 }
  52 END
  53
  54 cp zardoz.y dir/quux.y
  55
  56 c_outputs='zardoz.c dir/quux.c baz-zardoz.c'
  57
  58 $ACLOCAL
  59 $AUTOCONF
  60 # FIXME: stop disabling the warnings in the 'unsupported' category
  61 # FIXME: once the 'subdir-objects' option has been mandatory.
  62 $AUTOMAKE -a -Wno-unsupported
  63
  64 for vpath in : false; do
  65
  66   if $vpath; then
  67     srcdir=..
  68     mkdir build
  69     cd build
  70   else
  71     srcdir=.
  72   fi
  73
  74   $srcdir/configure
  75   $MAKE
  76
  77   # For debugging,
  78   ls -l . dir
  79   $EGREP 'line|\.y' $c_outputs
  80
  81   # Adjusted "#line" should not contain reference to the builddir.
  82   grep '#.*line.*build.*\.y' $c_outputs && exit 1
  83   # Adjusted "#line" should not contain reference to the absolute
  84   # srcdir.
  85   $EGREP '#.*line *"?/.*\.y' $c_outputs && exit 1
  86   # Adjusted "#line" should not contain reference to the default
  87   # output file names, e.g., 'y.tab.c' and 'y.tab.h'.
  88   grep '#.*line.*y\.tab\.' $c_outputs && exit 1
  89   # Look out for a silly regression.
  90   grep "#.*\.y.*\.y" $c_outputs && exit 1
  91   if $vpath; then
  92     grep '#.*line.*"\.\./zardoz\.y"' zardoz.c
  93     grep '#.*line.*"\.\./zardoz\.y"' baz-zardoz.c
  94     grep '#.*line.*"\.\./dir/quux\.y"' dir/quux.c
  95   else
  96     grep '#.*line.*"zardoz\.y"' zardoz.c
  97     grep '#.*line.*"zardoz\.y"' baz-zardoz.c
  98     grep '#.*line.*"dir/quux\.y"' dir/quux.c
  99   fi
 100
 101   cd $srcdir
 102
 103 done
 104
 105 :