Neil Stansbury wrote:
Just thought I'd add, in JS you can also:
if ( O1 instanceof Components.interfaces.O2 ) {
// Do stuff
}
O1 is implicity cast on success
The above is a bit misleading in the context of the OP's question. What
you say is absolutely true if 'O2' is the name of an xpcom interface.
But, in the original question I took 'O2' to be an arbitrary object - in
which case your code snippet would not work.
John.
N
John Bandhauer wrote:
Oliveiros Cristina wrote:
All,
Can anyone advise me if the identity rules that applied in MSCOM
apply as well in XPCOM? Namely,
if we query a certain object O1 for nsISupports interface and store
pointer in p1 and query O2 for nsISupports and store pointer in p2
If O1 == O2 implies that p1 == p2 ?
Yes.
If this rule doesn't hold how can we test if two interface pointers
refer to the same component ?
Thanks in advance for your help
Oliveiros Cristina
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