Re: Between-Opcode Callbacks

[Jarkko Hietaniemi]

On Sun, Jul 08, 2001 at 12:13:27AM +0100, Simon Cozens wrote:
> On Sat, Jul 07, 2001 at 05:51:00PM -0500, Jarkko Hietaniemi wrote:
> >     A basic block is a sequence of consecutive statements
> >     in which flow of control enters at the beginning and
> >     leaves at the end without halt or possibility of
> >     branching except at the end.
> 
> Oh, I know what Bblocks are.

But not necessarily every kind reader of this forum.

> We even have B::Bblock to detect them!
> I was just trying to work out whether they'd always be related to
> scope, because I forgot about things like
> 
>     if (,..) {
>         } # ends basic block and scope
>     # starts basic block but not scope
> 
> There is a strong correlation between bblocks and scopes, and you can
> easily derive one from another. But it took me a while to remember that
> they ain't the same. :)

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