Add new methods "subView" to O(U)String to return substring views
of the underlying data.
Add a clang plugin to warn when replacing existing calls to copy()
would be better to use subView().
Change-Id: I03a5732431ce60808946f2ce2c923b22845689ca
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105420
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
noticed something that wasn't being picked up, wrote some tests,
and found an unhandled case in Plugin::getParentFunctionDecl
Change-Id: I52b4ea273be6614e197392dfc4d6053bbc1704de
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/90141
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
"Find explicit casts from signed to unsigned integer in comparison against
unsigned integer, where the cast is presumably used to avoid warnings about
signed vs. unsigned comparisons, and could thus be replaced with
o3tl::make_unsigned for clairty." (compilerplugins/clang/unsignedcompare.cxx)
o3tl::make_unsigned requires its argument to be non-negative, and there is a
chance that some original code like
static_cast<sal_uInt32>(n) >= c
used the explicit cast to actually force a (potentially negative) value of
sal_Int32 to be interpreted as an unsigned sal_uInt32, rather than using the
cast to avoid a false "signed vs. unsigned comparison" warning in a case where
n is known to be non-negative. It appears that restricting this plugin to non-
equality comparisons (<, >, <=, >=) and excluding equality comparisons (==, !=)
is a useful heuristic to avoid such false positives. The only remainging false
positive I found was 0288c8ffec "Rephrase cast
from sal_Int32 to sal_uInt32".
But which of course does not mean that there were no further false positivies
that I missed. So this commit may accidentally introduce some false hits of the
assert in o3tl::make_unsigned. At least, it passed a full (Linux ASan+UBSan
--enable-dbgutil) `make check && make screenshot`.
It is by design that o3tl::make_unsigned only accepts signed integer parameter
types (and is not defined as a nop for unsigned ones), to avoid unnecessary uses
which would in general be suspicious. But the STATIC_ARRAY_SELECT macro in
include/oox/helper/helper.hxx is used with both signed and unsigned types, so
needs a little oox::detail::make_unsigned helper function for now. (The
ultimate fix being to get rid of the macro in the first place.)
Change-Id: Ia4adc9f44c70ad1dfd608784cac39ee922c32175
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87556
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>
if one side of the expression is a compile-time-constant, we don't need
to worry about side-effects on the other side
Change-Id: Iee71ea51b327ef244bf39f128f921ac325d74e2b
Reviewed-on: https://gerrit.libreoffice.org/81589
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
...similar to OUStringChar, to be used in string concatenation expressions. And
enable the corresponding loplugin:stringadd check, and fix its findings.
Change-Id: I35ebb2253ba82bda6c98ae6ebd2ad4f27cf9abf9
Reviewed-on: https://gerrit.libreoffice.org/81456
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Replace them with default initialization or calloc
Change-Id: I747f53c2ced2d0473fd5a5ede4f8520a0633dcc1
Reviewed-on: https://gerrit.libreoffice.org/80805
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
...that had been missing because the plugin didn't implement postRun, so it
didn't report anything when run as part of the shared plugin. (But did report
the expected warnings when run as a standalone plugin during
CompilerTest_compilerplugins_clang.)
Most fixes are straightforward. A noteworthy one is PreparedStatement::setBytes
in connectivity/source/drivers/postgresql/pq_preparedstatement.cxx: The old
preallocation of a 20 character OStringBuffer might have prevented
buf.append( reinterpret_cast<char *>(escapedString), len -1 );
from potentially throwing std::bad_alloc, which would have caused escapedString
to be leaked. Even though that 20-character preallocation was likely just
random junk and not meant to address the potential leak, lets address it now.
Change-Id: Ib506332d061684a22a74e5e39e591539fd2c4900
Reviewed-on: https://gerrit.libreoffice.org/80925
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Apply the constmethod plugin, but only to accessor-type methods, e.g.
IsFoo(), GetBar(), etc, where we can be sure of that
constifying is a reasonable thing to do.
Change-Id: Ibc97f5f359a0992dd1ce2d66f0189f8a0a43d98a
Reviewed-on: https://gerrit.libreoffice.org/74269
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.
Change-Id: I266367d4f9e2b9bf637fc103a5e4876bd6b1d2b9
Reviewed-on: https://gerrit.libreoffice.org/79261
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
So finding correct offline help will actually work with language
tags containing scripts or variants.
Change-Id: I493041fbfe62dc7cd2e035592fe94ef9fe3c2480
Reviewed-on: https://gerrit.libreoffice.org/74855
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins
... but a tag of an installed language, e.g. "en-US".
Adding a country then resulted in "en-US-US", used to load a
collator.
Further inspection of processLang() needed which can't work for
sr-Latn or ca-valencia, for example.
Change-Id: Id587ede738143c506da1ff2822aa605d0e7bee83
Reviewed-on: https://gerrit.libreoffice.org/74847
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins
V572 It is odd that the object which was created using 'new' operator
is immediately cast to another type.
Change-Id: I54976062dc3f62eaaa79f89eff54454f0b24ac2c
Reviewed-on: https://gerrit.libreoffice.org/69989
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
largely based on the relevant portion of the unusedfields loplugin, but
adapted for local vars
Change-Id: Ic522a941573940e8f75c88f90ba5f37508ca49b1
Reviewed-on: https://gerrit.libreoffice.org/66835
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Since it is now possible to use C++14, it's time to replace
the temporary solution with the standard one
Change-Id: Ib3201f865d43f372007cdf381c7e244e9cbeae26
Reviewed-on: https://gerrit.libreoffice.org/67474
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Noel