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233 Commits

Author SHA1 Message Date
Akim Demaille
cacdfc2f6e gram: fix handling of nterms in actions when some are unused 
Since Bison 3.3, semantic values in rule actions (i.e., '$...') are
passed to the m4 backend as the symbol number.  Unfortunately, when
there are unused symbols, the symbols are renumbered _after_ the
numbers were used in the rule actions.  As a result, the evaluation of
the skeleton failed because it used non existing symbol numbers.
Which is the happy scenario: we could use numbers of other existing
symbols...

Reported by Balázs Scheidler.
http://lists.gnu.org/archive/html/bug-bison/2019-01/msg00044.html

Translating the rule actions after the symbol renumbering moves too
many parts in bison.  Relying on the symbol identifiers is more
troublesome than it might first seem: some don't have an
identifier (tokens with only a literal string), some might have a
complex one (tokens with a literal string with characters special for
M4).  Well, these are tokens, but nterms also have issues: "dummy"
nterms (for midrule actions) are named $@32 etc. which is risky for
M4.

Instead, let's simply give M4 the mapping between the old numbers and
the new ones.  To avoid confusion between old and new numbers, always
emit pre-renumbering numbers as "orig NUM".

* data/README: Give details about "orig NUM".
* data/skeletons/bison.m4 (__b4_symbol, _b4_symbol): Resolve the
"orig NUM".
* src/output.c (prepare_symbol_definitions): Pass nterm_map to m4.
* src/reduce.h, src/reduce.c (nterm_map): Extract it from
nonterminals_reduce, to make it public.
(reduce_free): Free it.
* src/scan-code.l (handle_action_dollar): When referring to a nterm,
use "orig NUM".
* tests/reduce.at (Useless Parts): New, based Balázs Scheidler's
report.
 2019-02-03 10:05:53 +01:00
Akim Demaille
2471733f1a package: bump copyrights to 2019 2019-01-05 14:58:05 +01:00
Akim Demaille
a4ede8f85b package: make bison a relocatable package 
Suggested by David Barto
https://lists.gnu.org/archive/html/help-bison/2015-02/msg00004.html
and Victor Zverovich.
https://lists.gnu.org/archive/html/bison-patches/2018-10/msg00121.html

This is very easy to do, thanks to work by Bruno Haible in gnulib.
See "Supporting Relocation" in gnulib's documentation.

* bootstrap.conf: We need relocatable-prog and relocatable-script (for yacc).

* src/yacc.in: New.
* configure.ac, src/local.mk: Instantiate it.
* src/main.c, src/output.c (main, pkgdatadir): Use relocatable2.

* doc/bison.texi (FAQ): Document it.
 2018-12-25 10:05:36 +01:00
Akim Demaille
807bf60cfc c++: fix double free when a symbol_type was moved 
Currently the following piece of code crashes (with parse.assert),
because we don't record that s was moved-from, and we invoke its dtor.

    {
      auto s = parser::make_INT (42);
      auto s2 = std::move (s);
    }

Reported by Wolfgang Thaller.
http://lists.gnu.org/archive/html/bug-bison/2018-12/msg00077.html

* data/c++.m4 (by_type): Provide a move-ctor.
(basic_symbol): Be sure not to read a moved-from value.
* tests/c++.at (C++ Variant-based Symbols Unit Tests): Check this case.
 2018-12-24 18:58:56 +01:00
Akim Demaille
4a42a4f911 d: add skeleton for the D language 
Contributed by Oliver Mangold.
https://lists.gnu.org/archive/html/help-bison/2012-01/msg00000.html

* README-D.txt, d-skel.m4, d.m4, lalr1.d: New.
 2018-12-04 20:29:28 +01:00
Akim Demaille
4e510c69b1 c++: using macros around user types breaks when they include comma 
We may generate code such as

    basic_symbol (typename Base::kind_type t, YY_RVREF (std::pair<int,int>) v);

which, of course, breaks, because YY_RVREF sees two arguments.  Let's
not play tricks with _VA_ARGS__, I'm unsure about it portability.
Anyway, I plan to change more things in this area.

Reported by Sébastien Villemot.
http://lists.gnu.org/archive/html/bug-bison/2018-11/msg00014.html

* data/variant.hh (b4_basic_symbol_constructor_declare)
(b4_basic_symbol_constructor_define): Don't use macro on user types.
* tests/types.at: Check that we support pairs.
 2018-11-20 20:01:50 +01:00
Akim Demaille
05e70adf22 build: fix issues in the generated tarball 
Reported by Andre da Costa Barros.
https://savannah.gnu.org/patch/?9716

* examples/calc++/local.mk: We no longer generate position.hh and
stack.hh.  Leaving them here triggers their concurrent generation,
which fails.
(%C%_calc___CPPFLAGS): Fix the extracted headers in the source tree.
* examples/mfcalc/local.mk (%C%_mfcalc_CPPFLAGS): Ditto.
 2018-11-08 08:33:16 +01:00
Akim Demaille
7efe0b5da3 build: fix typo 
Reported by Horst Von Brand.
https://savannah.gnu.org/support/?109580

* examples/local.mk (.PHOMY): Rename as...
(.PHONY): this.
 2018-11-07 21:51:27 +01:00
Akim Demaille
4fd1fc70e0 examples: ship them 
Currently, the examples are extracted on the user's side.
Unfortunately, that requires that the user has Perl, which is
otherwise not needed for Bison.  Let's ship the examples instead.

The examples were handled this way so that we could depend on
configure flags: if --enable-gcc-warnings is passed, it is understood
as "I'm a maintainer", so the examples are generated with `#line`s.
Regular users should not see them, so they are now unconditionally
removed when rolling a tarball.

Reported by Mike Frysinger.
https://lists.gnu.org/archive/html/bison-patches/2015-04/msg00000.html

* examples/local.mk: Ship all the extracted files.
(examples-unline): New.
Make sure that the generated tarballs do not contain the #lines.
 2018-11-06 13:23:13 +01:00
Adam Sampson
3bf429aed8 examples: #include <cstring> in calc++ 
strerror is defined by <string.h>, and recent versions of GNU libstdc++
no longer include this automatically from <string>.
 2018-11-02 10:20:30 +01:00
Akim Demaille
e605ad9679 build: fix use of gnulib Make variables 
Reported by Kiyoshi Kanazawa.
http://lists.gnu.org/archive/html/bug-bison/2018-10/msg00048.html

* lib/local.mk (lib_libbison_a_LIBADD): Merge into...
* src/local.mk (src_bison_LDADD): here.
 2018-10-30 07:01:21 +01:00
Akim Demaille
d2192653db build: add missing gnulib libs 
Reported by Denis Excoffier.

* lib/local.mk, src/local.mk: here.
 2018-10-20 09:11:22 +02:00
Akim Demaille
0299b699bb THANKS: add Josh Soref 2018-10-05 07:06:44 +02:00
Akim Demaille
a990213582 timevar: don't declare getrusage if we don't use it 
This fails on MinGW.
Reported by Simon Sobisch.
http://lists.gnu.org/archive/html/bug-bison/2018-09/msg00058.html

* lib/timevar.c: Don't provide default prototypes for functions
we don't use.
 2018-09-22 15:58:27 +02:00
Akim Demaille
2d7e743802 examples: beware of shell portability issues 
Some shells don't grok `local var=$val` very well: they need the rhs
to be quoted.

    ./examples/test: 66: local: you.,: bad variable name
    FAIL examples/variant.test (exit status: 2)

Reported by Étienne Renault.

* examples/test (run): Quote the values in 'local' assignments.
 2018-09-02 09:37:53 +02:00
Akim Demaille
44e76d801f lalr1.cc: support compilation with disabled support for exceptions 
Reported by Brooks Moses <bmoses@google.com>
http://lists.gnu.org/archive/html/bison-patches/2018-02/msg00000.html

* data/lalr1.cc (YY_EXCEPTIONS): New.
Use it to disable try/catch clauses.

* doc/bison.texi (C++ Parser Interface): Document it.

* configure.ac (CXXFLAGS_NO_EXCEPTIONS): New.
* tests/atlocal.in: Receive it.
* tests/local.at (AT_FULL_COMPILE, AT_LANG_COMPILE):
Accept a new argument, extra compiler flags.
* tests/calc.at: Run the C++ calculator with exception support disabled.
 2018-08-19 17:47:59 +02:00
Akim Demaille
f348522005 C++: fix portability issue with MSVC 2017 
Visual Studio issues a C4146 warning on '-static_cast<unsigned>(rhs)'.
The code is weird, probably to cope with INT_MIN.  Let's go back to
using std::max (whose header is still included in position.hh...) like
originally, but with the needed casts.

Reported by 長田偉伸, and with help from Rici Lake.

See also
http://lists.gnu.org/archive/html/bug-bison/2013-02/msg00000.html
and commit 75ae829984.

* data/location.cc (position::add_): Take min as an int.
Use std::max.
While here, get rid of a couple of useless inlines.
 2018-08-18 18:07:43 +02:00
Akim Demaille
e866c476fd build: fix concurrent build failure 
Reported by Dengke Du and Robert Yang.
https://lists.gnu.org/archive/html/bison-patches/2017-07/msg00000.html

* src/local.mk (src/yacc): Make sure the directory exists.
 2018-08-18 15:37:14 +02:00
Akim Demaille
425044a936 doc: clarify the destructor selection example 
Reported by Gary L Peskin.
http://lists.gnu.org/archive/html/help-bison/2016-02/msg00000.html

* doc/bison.texi (Destructor Decl): here.
 2018-08-18 14:15:21 +02:00
Akim Demaille
5010af94d0 portability: don't use _Pragma with ICC 
ICC defines __GNUC__ [1], but does not support GCC's _Pragma for
diagnostics.  As a matter of fact, I believe it does not support
_Pragma at all (only #pragma) [2].

Reported by Maxim Prohorenko.
https://savannah.gnu.org/support/index.php?108339

[1] https://software.intel.com/en-us/cpp-compiler-18.0-developer-guide-and-reference-gcc-compatibility-and-interoperability
[2] https://software.intel.com/en-us/cpp-compiler-18.0-developer-guide-and-reference-pragmas

* data/c.m4 (YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN): Exclude ICC from
the club.
 2018-08-18 14:15:13 +02:00
Akim Demaille
adf0425d11 escape properly the file names in #line for printer/destructor 
Reported by Jannick.
http://lists.gnu.org/archive/html/bug-bison/2017-05/msg00001.html

"Amusingly" enough, we have the same problem with %defines when the
parser file name has backslashes or quotes: we generate #includes with
an incorrect C string.

* src/output.c (prepare_symbol_definitions): Escape properly the file
names before passing them to M4.
* data/bison.m4, data/lalr1.cc: Don't simply put the file name between
two quotes (that should have been strong enough a smell...), expect
the string to be properly quoted.
* tests/synclines.at: New tests to check this.
 2018-08-18 10:04:50 +02:00
Akim Demaille
7b24c424b5 add support for typed mid-rule actions 
Prompted on Piotr Marcińczyk's message:
http://lists.gnu.org/archive/html/bug-bison/2017-06/msg00000.html.
See also http://lists.gnu.org/archive/html/bug-bison/2018-06/msg00001.html.

Because their type is unknown to Bison, the values of midrule actions are
not treated like the others: they don't have %printer and %destructor
support.  In addition, in C++, (Bison) variants cannot work properly.

Typed midrule actions address these issues.  Instead of:

    exp: { $<ival>$ = 1; } { $<ival>$ = 2; }   { $$ = $<ival>1 + $<ival>2; }

write:

    exp: <ival>{ $$ = 1; } <ival>{ $$ = 2; }   { $$ = $1 + $2; }

* src/scan-code.h, src/scan-code.l (code_props): Add a `type` field to
record the declared type of an action.
(code_props_rule_action_init): Add a type argument.
* src/parse-gram.y: Accept an optional type tag for actions.
* src/reader.h, src/reader.c (grammar_current_rule_action_append): Add
a type argument.
(grammar_midrule_action): When a mid-rule is typed, pass its type to
the defined dummy non terminal symbol.
 2018-08-11 18:09:29 +02:00
Akim Demaille
3df32101e7 warnings: address -Wnull-dereference in reader.c 
Based on a patch by David Michael.
http://lists.gnu.org/archive/html/bison-patches/2018-07/msg00000.html

* src/reader.c (find_start): New, extracted from...
(check_and_convert_grammar): here.
 2018-08-05 20:25:58 +02:00
Akim Demaille
0ac08d2d6c THANKS: update an address 2018-05-30 19:18:04 +02:00
Akim Demaille
f3bd6a25bf Replace ftp with https 
Reported by Hans Åberg.

* README, cfg.mk, doc/bison.texi: here.
 2018-05-29 07:28:02 +02:00
Akim Demaille
d17dc9a8b5 C++: fix -Wdeprecated warnings 
For instance on test 99:

    In file included from @@.cc:56:
    @@.hh:409:26: error: definition of implicit copy constructor for
                         'stack_symbol_type' is deprecated because it
                         has a user-declared copy assignment operator
                         [-Werror,-Wdeprecated]
          stack_symbol_type& operator= (const stack_symbol_type& that);
                         ^

Reported by Derek Clegg.
https://lists.gnu.org/archive/html/bison-patches/2018-05/msg00036.html

* configure.ac (warn_tests): Add -Wdeprecated.
* data/lalr1.cc (stack_symbol_type): Add an explicit copy ctor.
We cannot rely on the explicit default implementation (`= default`)
as we support C++ 98.
 2018-05-27 10:03:57 +02:00
Akim Demaille
2e9e591889 Update copyright years 
Run `make update-copyright`.
 2018-05-12 18:18:41 +02:00
Nate Guerin
a6ec9ca2f1 Add a missing word in the documentation 
Small patch adds the word 'to' to the documentation.
 2018-05-12 18:13:37 +02:00
Akim Demaille
75fbe357c8 doc: fixes in the C++ part 
Reported by Askar Safin.

http://lists.gnu.org/archive/html/bug-bison/2015-02/msg00018.html
http://lists.gnu.org/archive/html/bug-bison/2015-02/msg00019.html

* doc/bison.texi (Split Symbols): Fix access to token types.
yylval is a pointer, so use ->.
Fix coding style issues: space before paren.
 2015-03-03 16:31:31 +01:00
Akim Demaille
a668f48631 tests: be robust to platforms that support UTF-8 even with LC_ALL=C 
Because musl supports UTF-8 with LC_ALL=C, gcc produces:

  input.y: In function ‘yyparse’:

instead of:

  input.y: In function 'yyparse':

Reported by Ferdinand Thiessen.
http://lists.gnu.org/archive/html/bug-bison/2015-02/msg00001.html

* tests/synclines.at (AT_SYNCLINES_COMPILE): Skip syncline tests when
we can't trust error messages issued about a function body.
 2015-02-10 14:56:30 +01:00
Akim Demaille
16832bf546 build: fix some warnings 
Reported by John Horigan.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00034.html

* src/graphviz.c, src/symtab.h: Address compiler warnings.
 2015-01-18 15:41:15 +01:00
Akim Demaille
0ab29b7c20 build: avoid infinite recursions on include_next 
On MacOS X 10.5 PPC with Apple's GCC 4.0.1:

  % uname -a
  Darwin aria.cielonegro.org 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:0
  1 PDT 2009; root:xnu-1228.15.4~1/RELEASE_PPC Power Macintosh
  % gcc --version
  powerpc-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5493)
  Copyright (C) 2005 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

building in place enters into an infinite recursion on "#include_next":

  % gmake V=1
  [snip]
  depbase=`echo lib/math.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
  gcc -std=gnu99    -I. -Ilib -I. -I./lib   -g -O2 -MT lib/math.o -MD -MP -MF $depbase.Tpo -c -o lib/math.o lib/math.c &&\
  mv -f $depbase.Tpo $depbase.Po
  In file included from lib/math.h:27,
                   from lib/math.h:27,
                   from lib/math.h:27,
                   from lib/math.h:27,
  [snip]
                   from lib/math.h:27,
                   from lib/math.h:27,
                   from lib/math.c:3:
  lib/math.h:27:23: error: #include nested too deeply
  Makefile:3414: recipe for target 'lib/math.o' failed
  gmake[2]: *** [lib/math.o] Error 1

Using -I./lib instead of -Ilib fixes the problem.

Reported by Pho.
<https://lists.gnu.org/archive/html/bison-patches/2014-01/msg00000.html>

* Makefile.am (AM_CPPFLAGS): Use -I./lib instead of -Ilib.
 2015-01-16 10:52:17 +01:00
Akim Demaille
9a91e7f246 doc: liby's main arms the internationalization 
Reported by Nicolas Bedon.
<https://lists.gnu.org/archive/html/bug-bison/2014-11/msg00005.html>

* doc/bison.texi (Yacc Library): Document the call the setlocale.
 2015-01-12 11:37:24 +01:00
Akim Demaille
671850a1c3 bison: avoid warnings from static code analysis 
A static analysis tool reports that some callers of symbol_list_n_get
might get NULL and not handle it properly.  This is not the case, yet
we can suppress this pattern.

Reported by Mike Sullivan.
<https://lists.gnu.org/archive/html/bug-bison/2013-12/msg00027.html>

* src/symlist.c (symbol_list_n_get): Actually it is never called
to return 0.  Enforce this postcondition via aver.
(symbol_list_n_type_name_get): Simplify accordingly.  In particular,
discards a (translated) useless error message.
* src/symlist.h: Adjust documentation.
* src/scan-code.l: Style change.
 2015-01-09 15:27:59 +01:00
Akim Demaille
ee028dceff c++: fix the use of destructors when variants are enabled 
When using variants, destructors generate invalid code.
<http://lists.gnu.org/archive/html/bug-bison/2014-09/msg00005.html>
Reported by Michael Catanzaro.

* data/c++.m4 (~basic_symbol): b4_symbol_foreach works on yysym:
define it.
* tests/c++.at (Variants): Check it.
 2015-01-09 13:54:58 +01:00
Akim Demaille
ee2f433512 c++: provide a means to clear symbols 
The symbol destructor is currently the only means to clear a symbol.
Unfortunately during error recovery we might have to clear the
lookahead, which is a local variable (yyla) that has not yet reached
its end of scope.

Rather that duplicating the code to destroy a symbol, or rather than
destroying and recreating yyla, let's provide a means to clear a
symbol.

Reported by Antonio Silva Correia, with an analysis from Michel d'Hooge.
<http://savannah.gnu.org/support/?108481>

* data/c++.m4, data/lalr1.cc (basis_symbol::clear, by_state::clear)
(by_type::clear): New.
(basic_symbol::~basic_symbol): Use clear.
 2015-01-08 16:07:59 +01:00
Akim Demaille
7cf84b13a0 c++: variants: comparing addresses of typeid.name() is undefined 
Instead of storing and comparing pointers to names of types, store
pointers to the typeids, and compares the typeids.
Reported by Thomas Jahns.
<http://lists.gnu.org/archive/html/bug-bison/2014-03/msg00001.html>

* data/variant.hh (yytname_): Replace with...
(yytypeid_): this.
 2015-01-07 10:34:07 +01:00
Akim Demaille
a16074bb09 build: don't try to generate docs when cross-compiling 
When cross-compiling don't run the generated bison to update the docs.
Reported by Aaro Koskinen.
<http://lists.gnu.org/archive/html/bison-patches/2014-03/msg00000.html>

* configure.ac (CROSS_COMPILING): New.
* doc/local.mk: Use it.
 2015-01-05 12:27:27 +01:00
Akim Demaille
8386f6ef28 package: fix a reporter's name 
* THANKS, build-aux/git-log-fix: s/Bernd Edligner/Bernd Edlinger/.
 2015-01-04 18:00:51 +01:00
Akim Demaille
827bc59ca1 %union: fix the support for named %union 
Bison supports a union tag, for obscure reasons.  But it does a poor
job at it, especially since Bison 3.0.
Reported by Stephen Cameron and Tobias Frost.

It did not ensure that the name was not given several times.  An easy
way to do this is to make the %union tag be handled as a %define
variable, as they cannot be defined several times.

Since Bison 3.0, the synclines were wrongly placed, resulting in
invalid code.  Addressing this issue, because of the way the union tag
was stored (as a code muscle), would have been tedious.  Unless we
rather define the %union tag as a %percent variable, whose synclines
are easier to manipulate.

So replace the b4_union_name muscle by the api.value.union.name
%define variable, document, and check.

* data/bison.m4: Make sure that api.value.union.name has a keyword value.
* data/c++.m4: Make sure that api.value.union.name is not defined.
* data/c.m4 (b4_union_name): No longer use it, use api.value.union.name.
* doc/bison.texi (%define Summary): Document it.
* src/parse-gram.y (union_name): No longer define b4_uion_name, but
api.value.union.name.
* tests/input.at (Redefined %union name): New.
* tests/synclines.at (%union name syncline): New.
* tests/types.at: Check named %unions.
 2015-01-04 18:00:51 +01:00
Akim Demaille
3209eb1c4c package: bump to 2015 
Which also requires:

* gnulib: Update.
 2015-01-04 17:49:13 +01:00
Akim Demaille
975bb56431 flex: don't trust YY_USER_INIT 
Reported by Bernd Edligner and others.

* src/scan-gram.l: here.
 2014-12-31 14:54:43 +01:00
Akim Demaille
8d4dc896cb yacc.c: fix broken union when api.value.type=union and %defines are used 
Reported by Rich Wilson.

* data/c.m4 (b4_symbol_type_register): Append to b4_union_members,
not b4_user_union_members.
The latter invokes the former, but it is the former which is reinitialized
to empty by b4_value_type_setup_union.
* tests/types.at: Check it.

This reveals another bug, this time in the case of glr.c parsers.

* data/glr.c: Generate the header file before the implementation file,
to be sure that the setup is run before what depends on it.
 2014-12-31 14:39:05 +01:00
Akim Demaille
a3c3c6f242 doc: fix missing xref 
Reported by xolodho.

* doc/bison.texi (Printer Decl): here.
 2014-12-31 12:49:39 +01:00
Akim Demaille
fc51acddb4 package: bump to 2014 
* AUTHORS, ChangeLog-2012, Makefile.am, NEWS, PACKAGING, README,
* README-alpha, README-hacking, THANKS, TODO, bootstrap.conf,
* build-aux/darwin11.4.0.valgrind, build-aux/local.mk,
* build-aux/update-b4-copyright,
* build-aux/update-package-copyright-year, cfg.mk, configure.ac,
* data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4,
* data/c-like.m4, data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc,
* data/java-skel.m4, data/java.m4, data/lalr1.cc, data/lalr1.java,
* data/local.mk, data/location.cc, data/stack.hh, data/variant.hh,
* data/xslt/bison.xsl, data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl,
* data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint,
* djgpp/README.in, djgpp/config.bat, djgpp/config.sed,
* djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat,
* djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h,
* djgpp/testsuite.sed, doc/bison.texi, doc/local.mk, doc/refcard.tex,
* etc/README, etc/bench.pl.in, etc/local.mk,
* examples/calc++/calc++.test, examples/calc++/local.mk,
* examples/extexi, examples/local.mk, examples/mfcalc/local.mk,
* examples/mfcalc/mfcalc.test, examples/rpcalc/local.mk,
* examples/rpcalc/rpcalc.test, examples/test, examples/variant.yy,
* lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
* lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
* lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
* lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
* lib/local.mk, lib/main.c, lib/timevar.c, lib/timevar.def,
* lib/timevar.h, lib/vbitset.c, lib/vbitset.h, lib/yyerror.c,
* m4/bison-i18n.m4, m4/c-working.m4, m4/cxx.m4, m4/flex.m4,
* m4/timevar.m4, src/AnnotationList.c, src/AnnotationList.h,
* src/InadequacyList.c, src/InadequacyList.h, src/LR0.c, src/LR0.h,
* src/Sbitset.c, src/Sbitset.h, src/assoc.c, src/assoc.h,
* src/closure.c, src/closure.h, src/complain.c, src/complain.h,
* src/conflicts.c, src/conflicts.h, src/derives.c, src/derives.h,
* src/files.c, src/files.h, src/flex-scanner.h, src/getargs.c,
* src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c,
* src/graphviz.h, src/ielr.c, src/ielr.h, src/lalr.c, src/lalr.h,
* src/local.mk, src/location.c, src/location.h, src/main.c,
* src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c,
* src/named-ref.h, src/nullable.c, src/nullable.h, src/output.c,
* src/output.h, src/parse-gram.c, src/parse-gram.y, src/print-xml.c,
* src/print-xml.h, src/print.c, src/print.h, src/print_graph.c,
* src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
* src/reduce.h, src/relation.c, src/relation.h, src/scan-code.h,
* src/scan-code.l, src/scan-gram.h, src/scan-gram.l, src/scan-skel.h,
* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
* tests/actions.at, tests/atlocal.in, tests/bison.in, tests/c++.at,
* tests/calc.at, tests/conflicts.at, tests/cxx-type.at,
* tests/existing.at, tests/glr-regression.at, tests/headers.at,
* tests/input.at, tests/java.at, tests/javapush.at, tests/local.at,
* tests/local.mk, tests/named-refs.at, tests/output.at, tests/push.at,
* tests/reduce.at, tests/regression.at, tests/sets.at,
* tests/skeletons.at, tests/synclines.at, tests/testsuite.at,
* tests/torture.at, tests/types.at:
here.
 2014-02-03 15:27:02 +01:00
Akim Demaille
5cf6e669af tests: check $$'s destruction with variant, YYERROR, and no error recovery 
When variant are enabled, the yylhs variable (the left-hand side of
the rule being reduced, i.e. $$ and @$) is explicitly destroyed when
YYERROR is called.  This is because before running the user code, $$
is initialized, so that the user can properly use it.

However, when quitting yyparse, yylhs is also reclaimed by the C++
compiler: the variable goes out of scope.

This was not detected by the test suite because (i) the Object tracker
was too weak, and (ii) the problem does not show when there is error
recovery.

Reported by Paolo Simone Gasparello.
<http://lists.gnu.org/archive/html/bug-bison/2013-10/msg00003.html>

* tests/c++.at (Exception safety): Improve the objects logger to make
sure that we never destroy twice an object.
Also track copy-constructors.
Use a set instead of a list.
Display the logs before running the function body, this is more
useful in case of failure.
Generalize to track with and without error recovery.
 2013-11-15 10:13:47 +01:00
Akim Demaille
39bace5da8 tests: fix incorrect object construction 
Reported by Ken Moffat.
http://lists.gnu.org/archive/html/bug-bison/2013-10/msg00009.html

* tests/c++.at (Exception safety): Here.
 2013-10-21 10:36:53 +02:00
Akim Demaille
071863b3d8 glr: allow spaces between "%?" and "{" in predicates 
Reported by Rici Lake.
http://lists.gnu.org/archive/html/bug-bison/2013-10/msg00004.html
http://stackoverflow.com/questions/19330171/

* src/scan-gram.l: Do not try to be too smart when diagnosing invalid
directives.
* tests/glr-regression.at (Predicates): New test.
 2013-10-16 15:51:25 +02:00
Akim Demaille
0a244a2269 tests: do not use grep -q 
Reported by Daniel Galloway.
http://lists.gnu.org/archive/html/bug-bison/2013-08/msg00020.html

* tests/java.at: Ignore grep's output instead.
 2013-09-04 17:26:17 +02:00
Akim Demaille
c4aa4ff541 build: ship the ASCII art figures 
We don't ship the *.txt files that are used to build the info
file.
Reported by Colin Daley.

* doc/figs/example.txt: New.
* doc/local.mk (bison.info): Depend on the txt files.
And ship them.
 2013-08-01 11:41:49 +02:00