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Look through missing intermediate bases when interposing subclasses.

develop
Alexander Gavrilov 2012-10-11 15:10:19 +04:00
parent 010417c812
commit 5206236b01
2 changed files with 19 additions and 3 deletions
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20
library/VTableInterpose.cpp
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@ -281,9 +281,10 @@ VMethodInterposeLinkBase *VMethodInterposeLinkBase::get_first_interpose(virtual_
return item;
}
void VMethodInterposeLinkBase::find_child_hosts(virtual_identity *cur, void *vmptr)
bool VMethodInterposeLinkBase::find_child_hosts(virtual_identity *cur, void *vmptr)
{
auto &children = cur->getChildren();
bool found = false;
for (size_t i = 0; i < children.size(); i++)
{
@ -298,19 +299,34 @@ void VMethodInterposeLinkBase::find_child_hosts(virtual_identity *cur, void *vmp
continue;
child_next.insert(base);
found = true;
}
else
else if (child->vtable_ptr)
{
void *cptr = child->get_vmethod_ptr(vmethod_idx);
if (cptr != vmptr)
continue;
child_hosts.insert(child);
found = true;
find_child_hosts(child, vmptr);
}
else
{
// If this vtable is not known, but any of the children
// have the same vmethod, this one definitely does too
if (find_child_hosts(child, vmptr))
{
child_hosts.insert(child);
found = true;
}
}
}
return found;
}
void VMethodInterposeLinkBase::on_host_delete(virtual_identity *from)
{
if (from == host)

2
library/include/VTableInterpose.h
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@ -159,7 +159,7 @@ namespace DFHack
void on_host_delete(virtual_identity *host);
VMethodInterposeLinkBase *get_first_interpose(virtual_identity *id);
void find_child_hosts(virtual_identity *cur, void *vmptr);
bool find_child_hosts(virtual_identity *cur, void *vmptr);
public:
VMethodInterposeLinkBase(virtual_identity *host, int vmethod_idx, void *interpose_method, void *chain_mptr, int priority);
~VMethodInterposeLinkBase();