Previously we had the following approach:
- classes that implemented interfaces had an interface table
- classes that didn't implement an interface, but inherited from a class that did had a Nil entry
- classes that didn't implement any interface (including their parents) had a reference to FPC_EMPTYINTF (this was to optimize lookups)
Now the approach is as follows:
- classes that implement an interface or have a parent that implements an interface have an interface table; if the class itself doesn't implement an interface then the count will be 0
- classes that don't implement an interface at all (neither them nor their parents) have a Nil interface table
This way FPC_EMPTYINTF can be removed without sacrificing at least the optimization for classes without any interface. For classes that have parents with interfaces there will be a small speed penalty due to an additional lookup for the counter.
git-svn-id: trunk@34087 -
interfaces (since that may not have been done yet in case of an optimized
assignment before r21955, and will never be done as of r21955)
git-svn-id: trunk@21962 -
* fix string message method handling data structures to reflect this change, and also use the correct types for accessing them (longint vs. dword)
* output proper alignment code for string message method data structures to avoid issues on big-endian 64 bit architectures or architectures requiring proper alignment
* same for integer message methods; also, like string message method data structures, do not use packed records for them when accessing
* extend the test case (tw14145) do do multiple message dispatches, both integer and string ones, to complete successfully
git-svn-id: trunk@16254 -
the IInterface implementation to be XPCom-compatible
--- Merging r15997 through r16179 into '.':
U rtl/inc/variants.pp
U rtl/inc/objpash.inc
U rtl/inc/objpas.inc
U rtl/objpas/classes/persist.inc
U rtl/objpas/classes/compon.inc
U rtl/objpas/classes/classesh.inc
A tests/test/tconstref1.pp
A tests/test/tconstref2.pp
A tests/test/tconstref3.pp
U tests/test/tinterface4.pp
A tests/test/tconstref4.pp
U tests/webtbs/tw10897.pp
U tests/webtbs/tw4086.pp
U tests/webtbs/tw15363.pp
U tests/webtbs/tw2177.pp
U tests/webtbs/tw16592.pp
U tests/tbs/tb0546.pp
U compiler/sparc/cpupara.pas
U compiler/i386/cpupara.pas
U compiler/pdecsub.pas
U compiler/symdef.pas
U compiler/powerpc/cpupara.pas
U compiler/avr/cpupara.pas
U compiler/browcol.pas
U compiler/defcmp.pas
U compiler/powerpc64/cpupara.pas
U compiler/ncgrtti.pas
U compiler/x86_64/cpupara.pas
U compiler/opttail.pas
U compiler/htypechk.pas
U compiler/tokens.pas
U compiler/objcutil.pas
U compiler/ncal.pas
U compiler/symtable.pas
U compiler/symsym.pas
U compiler/m68k/cpupara.pas
U compiler/regvars.pas
U compiler/arm/cpupara.pas
U compiler/symconst.pas
U compiler/mips/cpupara.pas
U compiler/paramgr.pas
U compiler/psub.pas
U compiler/pdecvar.pas
U compiler/dbgstabs.pas
U compiler/options.pas
U packages/fcl-fpcunit/src/testutils.pp
git-svn-id: trunk@16180 -
* GetInterface and GetInterfaceWeak is modified so that when querying for IObjectReference not an interface is returned but the object pointer
git-svn-id: trunk@15087 -
* Changed fpc_class_as_intf so that it uses GetInterfaceWeak instead of GetInterface. This way it's prevented that the AS operator is increasing the refcounter of an unreferenced object from 0 to 1 temporarily and then by decreasing from 1 to 0 the object is freed.
git-svn-id: trunk@15077 -
* bugfix: initialized temp variables that are going to keep an interface by nil (segfaults)
* bugfix: AS operator has to call QueryInterface before GetInterface (related to revision r15066)
git-svn-id: trunk@15068 -
+ changes in compiler, utils, packages to resolve identifier conflicts with the new TObject methods (like changing of UnitName arguments to AUnitName, adding Classes. before the toString, etc). (issue #0014931)
git-svn-id: trunk@14005 -
* const s: string = icorbainterface; is possible now
* as operator is working now with corba interfaces
* supports helper function is working now with corba interfaces
git-svn-id: trunk@12729 -
* merged IOffset and EntryOffset of TInterfaceEntry. The meaning of IOffset depends now on IType
* to optimize: IOffset and FieldOffset of TImplementedInterface can be merged also! fpc still generate an interfacetable entry even for interfaces that aren't implemented in the current class (redirected by IMPLEMENTS keyword)
git-svn-id: trunk@6206 -
* fixed InitInterfacePointers (just etStandard interface pointers need to be initialized!)
* to fix: EntryOffset and IOffset should be merged (compiler thing)
* to fix: Interface pointer allocation in TClass for not etStandard interfaces is not necessary! (also compiler thing)
git-svn-id: trunk@5559 -
