Re: NYIException

[Andy Walter]

Hi Andrew,

On Monday 29 September 2003 19:40, Andrew Haley wrote:
> Throwing an appropriate message will help, of course, but one of the
> advantages of gcj is that you can pre-link and you know you won't get
> runtime linkage errors -- the linker has resolved everything.  Having
> dummy implementations loses this gcj advantage.

Dummy implementations that do nothing are a really bad thing, I agree. But a 
dummy implementation that either returns with the correct result or throws a 
NYIException makes it clear to the user what had happened.

Currently, we have those dummy methods anyway - and can't get rid of them, 
because some methods are partly, but not completely, implemented. With a new 
Exception class, the gcj linker could stop with an error message when such a 
method is instantiated and thrown. If we abuse any existing JDK Exeption for 
it, this would not be possible.


Cheers,

        Andy.

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