...with a boost::optional fallback for Xcode < 10 (as std::optional is only
available starting with Xcode 10 according to
<https://en.cppreference.com/w/cpp/compiler_support>, and our baseline for iOS
and macOS is still Xcode 9.3 according to README.md). And mechanically rewrite
all code to use o3tl::optional instead of boost::optional.
One immediate benefit is that disabling -Wmaybe-uninitialized for GCC as per
fed7c3deb3 "Slience bogus
-Werror=maybe-uninitialized" should no longer be necessary (and whose check
happened to no longer trigger for GCC 10 trunk, even though that compiler would
still emit bogus -Wmaybe-uninitialized for uses of boost::optional under
--enable-optimized, which made me ponder whether this switch from
boost::optional to std::optional would be a useful thing to do; I keep that
configure.ac check for now, though, and will only remove it in a follow up
commit).
Another longer-term benefit is that the code is now already in good shape for an
eventual switch to std::optional (a switch we would have done anyway once we no
longer need to support Xcode < 10).
Only desktop/qa/desktop_lib/test_desktop_lib.cxx heavily uses
boost::property_tree::ptree::get_child_optional returning boost::optional, so
let it keep using boost::optional for now.
After a number of preceding commits have paved the way for this change, this
commit is completely mechanical, done with
> git ls-files -z | grep -vz -e '^bin/find-unneeded-includes$' -e '^configure.ac$' -e '^desktop/qa/desktop_lib/test_desktop_lib.cxx$' -e '^dictionaries$' -e '^external/' -e '^helpcontent2$' -e '^include/IwyuFilter_include.yaml$' -e '^sc/IwyuFilter_sc.yaml$' -e '^solenv/gdb/boost/optional.py$' -e '^solenv/vs/LibreOffice.natvis$' -e '^translations$' -e '\.svg$' | xargs -0 sed -i -E -e 's|\<boost(/optional)?/optional\.hpp\>|o3tl/optional.hxx|g' -e 's/\<boost(\s*)::(\s*)(make_)?optional\>/o3tl\1::\2\3optional/g' -e 's/\<boost(\s*)::(\s*)none\>/o3tl\1::\2nullopt/g'
(before committing include/o3tl/optional.hxx, and relying on some GNU features).
It excludes some files where mention of boost::optional et al should apparently
not be changed (and the sub-repo directory stubs). It turned out that all uses
of boost::none across the code base were in combination with boost::optional, so
had all to be rewritten as o3tl::nullopt.
Change-Id: Ibfd9f4b3d5a8aee6e6eed310b988c4e5ffd8b11b
Reviewed-on: https://gerrit.libreoffice.org/84128
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
...following up on 314f15bff0 "Extend
loplugin:external to warn about enums".
Cases where free functions were moved into an unnamed namespace along with a
class, to not break ADL, are in:
filter/source/svg/svgexport.cxx
sc/source/filter/excel/xelink.cxx
sc/source/filter/excel/xilink.cxx
svx/source/sdr/contact/viewobjectcontactofunocontrol.cxx
All other free functions mentioning moved classes appear to be harmless and not
give rise to (silent, even) ADL breakage. (One remaining TODO in
compilerplugins/clang/external.cxx is that derived classes are not covered by
computeAffectedTypes, even though they could also be affected by ADL-breakage---
but don't seem to be in any acutal case across the code base.)
For friend declarations using elaborate type specifiers, like
class C1 {};
class C2 { friend class C1; };
* If C2 (but not C1) is moved into an unnamed namespace, the friend declaration
must be changed to not use an elaborate type specifier (i.e., "friend C1;"; see
C++17 [namespace.memdef]/3: "If the name in a friend declaration is neither
qualified nor a template-id and the declaration is a function or an
elaborated-type-specifier, the lookup to determine whether the entity has been
previously declared shall not consider any scopes outside the innermost
enclosing namespace.")
* If C1 (but not C2) is moved into an unnamed namespace, the friend declaration
must be changed too, see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71882>
"elaborated-type-specifier friend not looked up in unnamed namespace".
Apart from that, to keep changes simple and mostly mechanical (which should help
avoid regressions), out-of-line definitions of class members have been left in
the enclosing (named) namespace. But explicit specializations of class
templates had to be moved into the unnamed namespace to appease
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92598> "explicit specialization of
template from unnamed namespace using unqualified-id in enclosing namespace".
Also, accompanying declarations (of e.g. typedefs or static variables) that
could arguably be moved into the unnamed namespace too have been left alone.
And in some cases, mention of affected types in blacklists in other loplugins
needed to be adapted.
And sc/qa/unit/mark_test.cxx uses a hack of including other .cxx, one of which
is sc/source/core/data/segmenttree.cxx where e.g. ScFlatUInt16SegmentsImpl is
not moved into an unnamed namespace (because it is declared in
sc/inc/segmenttree.hxx), but its base ScFlatSegmentsImpl is. GCC warns about
such combinations with enabled-by-default -Wsubobject-linkage, but "The compiler
doesn’t give this warning for types defined in the main .C file, as those are
unlikely to have multiple definitions."
(<https://gcc.gnu.org/onlinedocs/gcc-9.2.0/gcc/Warning-Options.html>) The
warned-about classes also don't have multiple definitions in the given test, so
disable the warning when including the .cxx.
Change-Id: Ib694094c0d8168be68f8fe90dfd0acbb66a3f1e4
Reviewed-on: https://gerrit.libreoffice.org/83239
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
To mitigate the dangers of silently breaking ADL when moving enums into unnamed
namespaces (see the commit message of 206b5b2661
"New loplugin:external"), note all functions that are affected. (The plan is to
extend loplugin:external further to also warn about classes and class templates,
and the code to identify affected functions already takes that into account, so
some parts of that code are not actually relevant for enums.)
But it appears that none of the functions that are actually affected by the
changes in this commit relied on being found through ADL, so no adaptions were
necessary for them.
(clang::DeclContext::collectAllContexts is non-const, which recursively means
that External's Visit... functions must take non-const Decl*. Which required
compilerplugins/clang/sharedvisitor/analyzer.cxx to be generalized to support
such Visit... functions with non-const Decl* parameters.)
Change-Id: Ia215291402bf850d43defdab3cff4db5b270d1bd
Reviewed-on: https://gerrit.libreoffice.org/83001
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
...to find StringLiteral on the RHS of +=. Which revealed that the
VisitCompoundStmt/checkForCompoundAssign logic needed to be fixed, too, so that
s += side_effect();
s += "literal";
s += side_effect();
only gets combined to
s += side_effect() + "literal";
s += side_effect();
and not all the way to
s += side_effect() + "literal" + side_effect();
Change-Id: I432e3458b933a7d0ad6141c747b675cc8b0f0ba4
Reviewed-on: https://gerrit.libreoffice.org/81804
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
...which had been broken since dfc0dc4801
"loplugin:casttovoid: fix containsPreprocessingConditionalInclusion()", and,
when range.getEnd() was a macro loc, would typically have wandered off past
the end of the intended range, until it would have encountered some #if etc.
and erroneously returned true. Fixed the fallout across the code base.
While at it, added a clarifying comment and made the "lexing fails" cases that
should never happen fail with a fatal error in debug mode.
Change-Id: Ieff44548384426d7716b6fc6c836c9069d878729
Reviewed-on: https://gerrit.libreoffice.org/81721
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
It started out as a wrapper around character literals, but has by now become a
wrapper around arbitrary single characters. Besides updating the documentation,
this change is a mechanical
for i in $(git grep -Fl OUStringLiteral1); do sed -i -e s/OUStringLiteral1/OUStringChar/g "$i"; done
Change-Id: I1b9eaa4b3fbc9025ce4a4bffea3db1c16188b76f
Reviewed-on: https://gerrit.libreoffice.org/80892
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
look for OUStringBuffer append sequences that can be turned
into creating an OUString with + operations
Change-Id: Ica840dc096000307b4a105fb4d9ec7588a15ade6
Reviewed-on: https://gerrit.libreoffice.org/80809
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Adapt getUnoTunnelId methods where required: rename or make public.
Change-Id: I0fd2120bf9f0ff1aa690329a65ff64a154c89315
Reviewed-on: https://gerrit.libreoffice.org/78680
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Use it instead of classname::getImplementation from UNO3_GETIMPLEMENTATION_*
Change-Id: Ifcc8cfcd6369c576250008c76ce31ba79ea3a596
Reviewed-on: https://gerrit.libreoffice.org/74107
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Replace with UNO3_GETIMPLEMENTATION* macros.
Replace single usage of IMPL_XUNOTUNNEL_MINIMAL with it's body.
Change-Id: I7d4ad76399b999ebb2178ecf57edcf6bd2aa6c3e
Reviewed-on: https://gerrit.libreoffice.org/73424
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Noel Grandin