On 9/28/2009 5:21 PM, Henry Minsky wrote:
> Yeah this has always been a not-officially supported but useful feature,
> that you could say "foo = something" and create a global, or at least
> something that acts like a global in the expressions
> you write in the debugger.
>
> It would be great if we could figure out a way to make this work in
> swf10. I wonder if we could go so far as to try to recognize statements
> of the form "somevar = someexpression" and put code that wraps around to
> check if "somevar" is not yet defined, and if so, to define it in the
> Debug.environment.
This will require (much?) more work, just consider how simple the
eval-script is currently constructed, you can evaluate:
lzx> );Debug.write("fail"
And you still get a result...
>
>
> On Mon, Sep 28, 2009 at 9:54 AM, André Bargull <[email protected]
> <mailto:[email protected]>> wrote:
>
> Forget to mention:
> There is now a funny effect in swf9/swf10 because of the with-block.
> You can evaluate the expression 'lzx> foo = 42' even if 'foo' is not
> a defined variable, but if you later want to retrieve the value of
> 'foo' by evaluating 'lzx> foo', the runtime reports a
> ReferenceError. Without the with-block, you'd get a static compiler
> error because 'foo' is not defined. But as the with-block forces
> dynamic look-up, the runtime needs perform this check, but
> apparently fails for assignment expressions, only dereferencing
> gives the ReferenceError. I'd consider this as a bug...
>
>
> --
> Henry Minsky
> Software Architect
> [email protected] <mailto:[email protected]>
>
>
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