[fpc-devel] Memory leak @ tobjectdef.getcopy

Sven Barth pascaldragon at googlemail.com
Mon Dec 2 08:02:59 CET 2019

Am 01.12.2019 um 18:08 schrieb Blaise at blaise.ru:
> On 01.12.2019 19:15, Blaise at blaise.ru wrote:
>> With the following two exceptions, there are no other 
>> assigned(vmtentries) checks before dereferencing.
> And one assertion @ TVMTBuilder.generate_vmt :
>>     if assigned(_class.childof) then
>>       begin
>>         if not assigned(_class.childof.vmtentries) then
>>           internalerror(200810281);
>>         _class.copyvmtentries(_class.childof);
>>       end;
> Patch is amended.
> (Originally, that was a part of another changeset, but I reckon it 
> makes more sense here.)
Applied in r43626 with the exception of the change from vmtentries.Free 
to vmtentries.Destroy. Modus operandi inside the compiler is to use 
.Free, not .Destroy (I know, there are a few exceptions, but that 
doesn't change the modus operandi).

It would be up to the compiler's optimizations that it can lower the 
.Free to .Destroy (it currently probably won't, but it shouldn't be 
/impossible/ to do).


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