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Disallow creation of abstract classes outside of their own class (this is so that modders can create their own factory methods, not just for native)

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ZZYZX 2017-02-16 02:39:49 +02:00
commit 7d3663500f
4 changed files with 19 additions and 4 deletions
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3
src/scripting/vm/vmexec.h
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@ -787,7 +787,8 @@ begin:
{
b = B;
PClass *cls = (PClass*)(pc->op == OP_NEW ? reg.a[b] : konsta[b].v);
if (cls->ObjectFlags & OF_Abstract) ThrowAbortException(X_OTHER, "Cannot instantiate abstract class %s", cls->TypeName.GetChars());
PClass *callingcls = (PClass*)konsta[C].o; // [ZZ] due to how this is set, it's always const
if ((cls->ObjectFlags & OF_Abstract) && callingcls != cls) ThrowAbortException(X_OTHER, "Cannot instantiate abstract class %s outside of that class", cls->TypeName.GetChars());
reg.a[a] = cls->CreateNew();
reg.atag[a] = ATAG_OBJECT;
NEXTOP;