Re: Parameter metadata
From: Fabian Schmied (REMOVETHISfabianDOTschmied_at_fhs-hagenbergDOTacDOTat)
Date: 04/30/04
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Date: Fri, 30 Apr 2004 20:16:56 +0200
Michael Sparks schrieb:
> The metadata for parameters is split between the parameter's signature and
> the param table.
> I noticed that the in/out specifiers get stored in the param table as
> opposed to the signature.
> Is there a reason for this?
> I'm sure that I'm just missing something, but I can't seem to think up any
> scenario where you'd want two methods to match on signature, but then be
> uncallable due to an in/out conflict.
The in/out difference is also reflected in the signature: for out and
ref parameters, you have a BYREF signature element (which indicates that
a reference to the argument is passed instead of the argument itself),
IIRC. The Params table contains additional information, e.g. whether a
BYREF is an out or ref parameter.
Fabian
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