1 # Bison Parser Headers. -*- Autotest -*-
3 # Copyright (C) 2001-2002, 2006-2007, 2009-2015, 2018-2021 Free Software
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.
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.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <https://www.gnu.org/licenses/>.
19 AT_BANNER([[Parser Headers.]])
22 ## --------------------- ##
23 ## Invalid CPP headers. ##
24 ## --------------------- ##
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])
36 AT_DATA_GRAMMAR([$1.y],
40 ]AT_YYERROR_DECLARE_EXTERN[
41 ]AT_YYLEX_DECLARE_EXTERN[
49 AT_BISON_CHECK([--defines=$1.h --output=$1.c $1.y])
50 AT_COMPILE([$1.o], [-I. -c $1.c])
52 AT_BISON_OPTION_POPDEFS
56 AT_TEST_CPP_GUARD_H([input/input])
57 AT_TEST_CPP_GUARD_H([9foo])
58 AT_TEST_CPP_GUARD_H([input/input], [%glr-parser])
59 AT_TEST_CPP_GUARD_H([9foo], [%glr-parser])
63 ## ---------------- ##
65 ## ---------------- ##
67 AT_SETUP([export YYLTYPE])
69 AT_BISON_OPTION_PUSHDEFS([%name-prefix "my_"])
70 AT_DATA_GRAMMAR([input.y],
85 AT_BISON_CHECK([--header -o input.c input.y], [], [],
86 [[input.y:11.1-18: warning: deprecated directive: '%name-prefix "my_"', use '%define api.prefix {my_}' [-Wdeprecated]
87 input.y: warning: fix-its can be applied. Rerun with option '--update'. [-Wother]
90 # YYLTYPE should be defined, and MY_LLOC declared.
93 YYLTYPE *my_llocp = &my_lloc;
100 # Link and execute, just to make sure everything is fine (and in
101 # particular, that MY_LLOC is indeed defined somewhere).
102 AT_COMPILE([caller.o])
103 AT_COMPILE([input.o])
104 AT_COMPILE([caller], [caller.o input.o])
105 AT_PARSER_CHECK([caller])
106 AT_BISON_OPTION_POPDEFS
115 # AT_TEST([DIRECTIVES], [COMPILER-FLAGS])
116 # ---------------------------------------
117 # Check that headers are self-contained and protected against multiple
120 m4_pushdef([AT_TEST],
121 [AT_SETUP([Sane headers: $1])
123 AT_BISON_OPTION_PUSHDEFS([$1])
124 AT_DATA_GRAMMAR([input.y],
126 %define parse.error verbose
127 ]AT_VARIANT_IF([%token <int> X],
128 [%union {int integer;}
129 %token <integer> X])[
131 #include <stdio.h> /* printf. */
133 #if defined __GNUC__ && (7 == __GNUC__ || 9 == __GNUC__)
134 # pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
142 X { printf ("x\n"); }
147 ]AT_YYLEX_DEFINE([{AT_CXX_IF([yy::parser::token::])X, 0}])[
150 AT_BISON_CHECK([-d -o input.AT_LANG_EXT input.y])
152 AT_LANG_COMPILE([input.o])
155 [AT_DATA_SOURCE_PROLOGUE
159 # Check that the headers are self-contained, and protected against
160 # multiple inclusions. While at it, check they are sane for C++.
161 for h in *.AT_LANG_HDR
163 # No shell expansion with AT_DATA.
164 cat >$h.AT_LANG_EXT <<EOF
165 AT_DATA_SOURCE_PROLOGUE
169 AT_LANG_COMPILE([$h.o])
172 AT_BISON_OPTION_POPDEFS
178 AT_TEST([%locations %debug])
180 AT_TEST([%glr-parser])
181 AT_TEST([%locations %debug %glr-parser])
183 AT_TEST([%define api.pure])
184 AT_TEST([%define api.push-pull both])
185 AT_TEST([%define api.pure %define api.push-pull both])
187 AT_TEST([%language "c++"])
188 AT_TEST([%locations %debug %language "c++"])
189 AT_TEST([%language "c++" %define api.value.type variant %define parse.assert])
191 AT_TEST([%locations %language "c++" %glr-parser])
195 ## ----------------- ##
196 ## Several parsers. ##
197 ## ----------------- ##
199 AT_SETUP([Several parsers])
201 # AT_TEST([PREFIX], [DIRECTIVES])
202 # -------------------------------
203 # Generate and compile to *.o. Make sure there is no (allowed) YY*
204 # nor yy* identifiers in the header after applying api.prefix. Check
205 # that headers can be compiled by a C++ compiler.
207 # They should all use parse.assert to make sure that we don't even
208 # conflict of YY_ASSERT.
209 m4_pushdef([AT_TEST],
210 [AT_BISON_OPTION_PUSHDEFS([%define api.prefix {$1_} %define parse.assert $2])
211 AT_DATA_GRAMMAR([$1.y],
212 [[%define api.prefix {$1_}
215 %define parse.error verbose
217 [%union {int integer;}])[
220 #include <stdio.h> /* printf. */
222 #if defined __GNUC__ && (7 == __GNUC__ || 9 == __GNUC__)
223 # pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
233 'x' '1' { printf ("x1\n"); }
234 | 'x' '2' { printf ("x2\n"); }
235 | 'x' '3' { printf ("x3\n"); }
236 | 'x' '4' { printf ("x4\n"); }
237 | 'x' '5' { printf ("x5\n"); }
238 | 'x' '6' { printf ("x6\n"); }
239 | 'x' '7' { printf ("x7\n"); }
240 | 'x' '8' { printf ("x8\n"); }
241 | 'x' '9' { printf ("x9\n"); }
242 | 'x' 'a' { printf ("xa\n"); }
243 | 'x' 'b' { printf ("xb\n"); }
249 ]AT_YYLEX_DEFINE(["$1"])[
252 AT_BISON_CHECK([-d -o $1.AT_LANG_EXT $1.y])
254 AT_LANG_COMPILE([$1.o])
255 AT_CHECK([[echo "$1" >>expout]])
257 AT_BISON_OPTION_POPDEFS
261 [AT_DATA_SOURCE_PROLOGUE
262 [// If we are compiling with CC=$CXX, then do not load the C headers
263 // inside extern "C", since they were _not_ compiled this way.
287 std::cerr << #S": " << res << '\n'; \
313 AT_TEST([x2], [%locations %debug])
314 AT_TEST([x3], [%glr-parser])
315 AT_TEST([x4], [%locations %debug %glr-parser])
316 AT_TEST([x5], [%locations %debug %language "c++"])
317 AT_TEST([x6], [%define api.pure])
318 AT_TEST([x7], [%define api.push-pull both])
319 AT_TEST([x8], [%define api.pure %define api.push-pull both])
320 AT_TEST([x9], [%locations %code requires {#include "location.hh"} %define api.location.type {::x5_::location} %debug %language "c++"])
321 AT_TEST([xa], [%locations %code requires {#include "location.hh"} %define api.location.type {::x5_::location} %language "c++" %define api.value.type variant])
322 AT_TEST([xb], [%locations %define api.location.file none %language "c++" %define api.value.type variant])
323 #AT_TEST([x5], [%locations %language "c++" %glr-parser])
325 # Check that api.prefix works properly:
328 # C++ output relies on namespaces and still uses yy a lot.
331 # Ignore YYPUSH_MORE(_DEFINED)? (constant definition),
332 # YYDEBUG (not renamed) can be read, but not changed.
333 AT_PERL_CHECK([[-n -0777 -e '
338 s{# *pragma .* message ".*"}{}g;
340 s{\b((defined|if)\ YYDEBUG
341 |YYChar # Template parameter.
342 |YYNTOKENS # This is actually scoped in a C++ class.
343 |YYPUSH_MORE(?:_DEFINED)?
344 |S_(YY(ACCEPT|EMPTY|EOF|error|UNDEF)) # These guys are scoped.
345 |YY(?:_REINTERPRET)?_CAST
346 |YY_ATTRIBUTE(?:_PURE|_UNUSED)
350 |YY_IGNORE_(?:MAYBE_UNINITIALIZED|USELESS_CAST)_(?:BEGIN|END)
360 |YY_\w+_INCLUDED # Header guards.
361 |FILE\ \*yyo # Function argument.
362 |const\ yylocp # Function argument.
364 while (/^(.*YY.*)$/gm)
366 print "$ARGV: invalid exported YY: $1\n";
370 while (/^(.*yy.*)$/gm)
372 print "$ARGV: invalid exported yy: $1\n";
377 # Do this late, so that other checks have been performed.
378 AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
380 AT_COMPILE_CXX([parser], [[x[1-9a-b].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])
381 AT_PARSER_CHECK([parser], [0], [[expout]])