/postprocess/

Age	Commit message (Collapse)	Author
2025-01-10	ITEM: Refactor ItemType	Armin Le Grand (Collabora)
	ItemType is useful and faster than RTTI. Until now it was implemented by a 16-bit member in the base class, plus (potentially) all constructors having to hand a value in at item construction type (of type SfxItemType) to get that member set correctly. This works, but there is no reliable way to guarantee coverage, and there have already been cases with missing SfxItemType - these fallback to '0' and thus all Items with ItemType() == 0 are assumed equal and might be static_cast'ed to the wrong classes. Note that I identified 35 Items that had no correct ItemType set/implemented actually. It also uses 16-bit per incarnated Item at runtime. I thought and realized now a more systematic approach to do that with a pure virtual function at the Item itself. That can also be secured by a clang compiler plugin in the future to keep it working. It uses one virtual function per derived class, no longer space in incarnated Items. Also the constructors will get more simple again. But the main aspect is security - we cannot afford Items potentially being held as equal if they are not. Unfortunately C++ does not offer something like a 'strict pure virtual function' that would force to be overloaded in every derivation, but the used methotology and adding a clang test is reasonably safe. Have now done the cleanup of previous method. Change-Id: I04768285f1e9b73d64b0bb87df401944b5d35678 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180017 Tested-by: Jenkins Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>
2020-02-02	tdf#128302: Split SVXCORE_DLLPUBLIC from SVX_DLLPUBLIC	Stephan Bergmann
	Using SVX_DLLPUBLIC for both Library_svxcore and Library_svx had started to cause failures with clang-cl on Windows now, presumably due to devirtualization: > linectrl.o : error LNK2001: unresolved external symbol "protected: virtual void __cdecl SvxMetricField::DataChanged(class DataChangedEvent const &)" (?DataChanged@SvxMetricField@@MEAAXAEBVDataChangedEvent@@@Z) > linectrl.o : error LNK2001: unresolved external symbol "protected: virtual bool __cdecl SvxMetricField::PreNotify(class NotifyEvent &)" (?PreNotify@SvxMetricField@@MEAA_NAEAVNotifyEvent@@@Z) > linectrl.o : error LNK2001: unresolved external symbol "protected: virtual bool __cdecl SvxMetricField::EventNotify(class NotifyEvent &)" (?EventNotify@SvxMetricField@@MEAA_NAEAVNotifyEvent@@@Z) > linectrl.o : error LNK2001: unresolved external symbol "protected: virtual void __cdecl SvxMetricField::Modify(void)" (?Modify@SvxMetricField@@MEAAXXZ) > linectrl.o : error LNK2001: unresolved external symbol "private: virtual bool __cdecl SvxFillAttrBox::PreNotify(class NotifyEvent &)" (?PreNotify@SvxFillAttrBox@@EEAA_NAEAVNotifyEvent@@@Z) > linectrl.o : error LNK2001: unresolved external symbol "private: virtual bool __cdecl SvxFillAttrBox::EventNotify(class NotifyEvent &)" (?EventNotify@SvxFillAttrBox@@EEAA_NAEAVNotifyEvent@@@Z) > C:\lo-clang\core\instdir\program\svxcorelo.dll : fatal error LNK1120: 6 unresolved externals Replacing certain uses of SVX_DLLPUBLIC with the newly introduced SVXCORE_DLLPUBLIC (include/svx/svxdllapi.h) has been done on Linux as follows: > git grep -w --line-number -e SVX_DLLPUBLIC --and --not -e '#define SVX_DLLPUBLIC' >LINES to produce a file LINES containing all 640 uses. (Conveniently, all uses happen to be on different lines.) Manually create a file TOKENS with 640 corresponding lines, each containing the (class or function) name that is made SVX_DLLPUBLIC by in the corresponding line in LINES. Then > nm -D --def instdir/program/libsvxcorelo.so \| grep -ivw '[vw]' \| c++filt >SVXCORESYMS > nm -D --def instdir/program/libsvxlo.so \| grep -ivw '[vw]' \| c++filt >SVXSYMS > n=$(cat TOKENS \| wc -l) > for ((i=1;i<="$n";++i)); do > tok=$(head -n "$i" TOKENS \| tail -1) > printf @ > grep -Fw "$tok" SVXCORESYMS >/dev/null && printf svxcore > printf @ > grep -Fw "$tok" SVXSYMS >/dev/null && printf svx > printf '@ ' > head -n "$i" LINES \| tail -1 > done to generate 640 output lines detailing for each SVX_DLLPUBLIC name occurrene whether it is mentioned in exports from neither (@@@), only from svx (@@svx@), only from svxcore (@svxcore@@), or from both libraries (@svxcore@svx@). The numbers that gives is 10 @@@ 180 @@svx@ 424 @svxcore@@ 26 @svxcore@svx@ The 10 @@@ ask for follow-up clean up, but most of them are just left as SVX_DLLPUBLIC for now. The exceptions are sxv::ITextProvider (include/svx/itextprovider.hxx) and SdrCustomShapeGeometryItem::PropertyPairHash (include/svx/sdasitm.hxx, where PropertyPairHash is a member struct of SVXCORE_DLLPUBLIC SdrCustomShapeGeometryItem). Keeping them as SVX_DLLPUBLIC would cause "unresolved externals" errors when linking Library_svxcore on Windows. The 180 @@svx@ are fine to keep as-is, and the 424 @svxcore@@ need rewriting. The 26 @svxcore@svx@ needed manual inspection to decide (in some cases, the chosen name in TOKENS was a too generic function name like Fill, in other cases it was the name of a class exported from one library but also mentioned in the arguments of a function exported from the other). And for sdr::table::SdrTableObj the class itself is defined in svxcore while the static member functions ExportAsRTF and ImportAsRTF are defined in svx. But MSVC does not allow to mark the class as SVXCORE_DLLPUBLIC and the two static member functions as SVX_DLLPLUBIC, so move the two functions out of the class. (There appears to be no real necessity that they were static member functions in the first place; they don't even need to be friends of the class. Nevertheless, this mixture of functionality from svxcore and svx in include/svx/svdotable.hxx may ask for follow-up clean up, one way or another.) All the output lines that need rewriting (all the @svxcore@@ ones, and the manually picked subset of @@@ and @svxcore@svx@ ones) are copied into a new file CHANGE (containing 451 lines). Then > sed -E -e 's\|^@.@.@ ([^:]+):([0-9]+):.*$\|sed -i -e "\2 s/SVX_DLLPUBLIC/SVXCORE_DLLPUBLIC/" \1\|' <CHANGE >COMMANDS > . COMMANDS to do the changes. Change-Id: If9b6dd1c9e9ba2eb883dbdac4385d28c6fc8a203 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87794 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2019-12-12	use covariant return type for SfxPoolItem::Clone	Caolán McNamara
	and can then remove some casting Change-Id: Id821c32ca2cbcdb7f57ef7a5fa1960042e630ffc Reviewed-on: https://gerrit.libreoffice.org/85022 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>