Re: [Webmacro-devel] unused Tools

[<web...@st...>]

On Tue, 3 Dec 2002 kea...@na... wrote:

| I've puzzled over this piece of code before.  Apparently there is the
| ability to pass parameters from the configuration to the tools constructor,
| but AFAIK noone has ever used this.  So it is kind of annoying that this
| code always gets executed.
|
| I don't think there's a big hit with throwing and immediately catching the
| exceptions, but all the diagnostic logging is annoying.  I suppose it would
| be cleaner to just check for the constructors directly and avoid trying to
| invoke them if they don't exist.  I could make this change if folks agree.

Throwing an Exception is _expensive_. Filling in the stack-trace takes
ages. One should _never_ use Exception-throwing in the normal code-path.
Exceptions are for .. yes .. exceptions. It should only be used in the
"rare-case", not the "common-case".

The VM must also handle the Exception blocks, by going in and out of the
try-blocks (there is a "machine-code" for doing this).


-- 
Mvh,
Endre Stølsvik               M[+47 93054050] F[+47 51625182]
Developer @ CoreTrek AS         -  http://www.coretrek.com/
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