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From: Duncan Sands <baldrick@free.fr>
To: comp.lang.ada@ada-france.org
Subject: Re: LLVM--Low Level Virtual Machine--and Ada
Date: Tue, 24 Jul 2007 21:36:10 +0200
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Cc: Randy Brukardt <randy@rrsoftware.com>
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Date: 2007-07-24T21:40:02+02:00

Hi Randy,

> > how do these thunks work?
> 
> Generally, the compiler passes the address of the thunk to wherever it is
> needed, and it is called indirectly. The thunks themselves adjust the
> parameters as needed and call the real routine.

presumably pointers to nested functions are "fat pointers" containing
both the identity of the nested function (equivalently, the identity of
a "thunk" that knows about the nested function) and also some kind of
pointer into the stack of the parent of the nested function.  Is that
right?

Thanks,

Duncan.