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authorAnthony Liguori <aliguori@us.ibm.com>2012-08-10 13:16:10 +1000
committerEdgar E. Iglesias <edgar.iglesias@gmail.com>2012-08-13 11:20:41 +0200
commit33e95c6328a3149a52615176617997c4f8f7088b (patch)
tree8b34f5d3e24cdee929827d67ec17b16ef486eafd /ia64-dis.c
parent669b4983018cf13e2adafe1b1b4e1e4053eeb90b (diff)
qom: Reimplement Interfaces
The current implementation of Interfaces is poorly designed. Each interface that an object implements ends up being an object that's tracked by the implementing object. There's all sorts of gymnastics to deal with casting between these objects. But an interface shouldn't be associated with an Object. Interfaces are global to a class. This patch moves all Interface knowledge to ObjectClass eliminating the relationship between Object and Interfaces. Interfaces are now abstract (as they should be) but this is okay. Interfaces essentially act as additional parents for the classes and are treated as such. With this new implementation, we should fully support derived interfaces including reimplementing an inherited interface. PC: Rebased against qom-next merge Jun-2012. PC: Removed replication of cast logic for interfaces, i.e. there is only one cast function - object_dynamic_cast() (and object_dynamic_cast_assert()) Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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