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
19AT_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.
29m4_define([AT_TEST_CPP_GUARD_H],
30[AT_SETUP([Invalid CPP guards: $2 --defines=$1.h])
31AT_BISON_OPTION_PUSHDEFS([$2])
32# Possibly create inner directories.
33dirname=`AS_DIRNAME([$1])`
34AS_MKDIR_P([$dirname])
35
36AT_DATA_GRAMMAR([$1.y],
37[$2
38%{
39#include <$1.h>
40]AT_YYERROR_DECLARE_EXTERN[
41]AT_YYLEX_DECLARE_EXTERN[
42%}
43%%
44dummy:;
45%%
46#include <$1.h>
47])
48
49AT_BISON_CHECK([--defines=$1.h --output=$1.c $1.y])
50
51AT_COMPILE([$1.o], [-I. -c $1.c])
52
53AT_BISON_OPTION_POPDEFS
54AT_CLEANUP
55])
56
57AT_TEST_CPP_GUARD_H([input/input])
58AT_TEST_CPP_GUARD_H([9foo])
59AT_TEST_CPP_GUARD_H([input/input], [%glr-parser])
60AT_TEST_CPP_GUARD_H([9foo],        [%glr-parser])
61
62
63
64## ---------------- ##
65## export YYLTYPE.  ##
66## ---------------- ##
67
68
69AT_SETUP([export YYLTYPE])
70
71AT_DATA_GRAMMAR([input.y],
72[%locations
73
74%name-prefix "my_"
75%{
76#include <stdio.h>
77#include <stdlib.h>
78
79static int
80my_lex (void)
81{
82  return EOF;
83}
84
85static void
86my_error (const char *msg)
87{
88  fprintf (stderr, "%s\n", msg);
89}
90
91%}
92%%
93exp:;
94])
95
96AT_BISON_CHECK([--defines -o input.c input.y])
97
98# YYLTYPE should be defined, and MY_LLOC declared.
99AT_DATA([caller.c],
100[[#include "input.h"
101YYLTYPE *my_llocp = &my_lloc;
102
103int my_parse (void);
104
105int
106main (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).
114AT_COMPILE([caller.o])
115AT_COMPILE([input.o])
116AT_COMPILE([caller], [caller.o input.o])
117AT_PARSER_CHECK([./caller])
118
119AT_CLEANUP
120
121## ----------------- ##
122## Several parsers.  ##
123## ----------------- ##
124
125AT_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.
132m4_pushdef([AT_TEST],
133[AT_BISON_OPTION_PUSHDEFS([%define api.prefix "$1_" $2])
134AT_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%%
148exp:
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
164AT_BISON_CHECK([-d -o $1.AT_SKEL_CC_IF([cc], [c]) $1.y])
165
166AT_LANG_COMPILE([$1.o])
167AT_CHECK([[echo "$1" >>expout]])
168
169AT_BISON_OPTION_POPDEFS
170])# AT_TEST
171
172AT_DATA([main.cc],
173[AT_DATA_SOURCE_PROLOGUE
174[// If we are compiling with CC=$CXX, then do not load the C headers
175// inside extern "C", since they were _not_ compiled this way.
176#if ! CC_IS_CXX
177extern "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
200int
201main (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
218AT_TEST([x1], [])
219AT_TEST([x2], [%locations %debug])
220AT_TEST([x3], [%glr-parser])
221AT_TEST([x4], [%locations %debug %glr-parser])
222AT_TEST([x5], [%locations %debug %language "c++"])
223AT_TEST([x6], [%define api.pure])
224AT_TEST([x7], [%define api.push-pull both])
225AT_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.
237AT_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: $1\n";
256    }
257  }
258' -- *.hh *.h]])
259
260# Check that the headers are self-contained, and protected against
261# multiple inclusions.  While at it, check they are sane for C++.
262for h in *.h *.hh
263do
264  # No shell expansion with AT_DATA.
265  cat >$h.cc <<EOF
266AT_DATA_SOURCE_PROLOGUE
267#include "$h"
268#include "$h"
269EOF
270  AT_COMPILE_CXX([$h.o])
271done
272
273# Do this late, so that other checks have been performed.
274AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
275
276AT_COMPILE_CXX([parser], [[x[1-8].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])
277AT_PARSER_CHECK([./parser], [0], [[expout]])
278
279m4_popdef([AT_TEST])
280
281AT_CLEANUP
282