Re: 2nd version: try..catch for Lua, now "finally" supported

[Mark Hamburg <mhamburg@...>]

on 1/30/08 10:48 AM, Fabien at fleutot+lua@gmail.com wrote:

> Incidentally, by writing this example, I'm thinking that maybe the
> catch-blocks and the finally-block should share the same scope as the
> try-block (i.e. if local h was declared after the "try" above, it would still
> be accessible to the "finally" code. Just as the "until" condition in plain
> Lua's "repeat...until" is in the loop body's scope). I'm interested by
> potential users advices, before maybe putting that in metalua 0.4.

Horrendous flow control problems in that case:

    try
        error( "Throw" )
        local x = 3
    catch err do
        print( x )
    end

At the point where we threw the error, x did not exist.

Mark