RE: gnu.classpath.VMStackWalker

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Andrew Haley wrote:
> The current gnu.classpath.VMStackWalker interface is inefficient.
> 
> Sun provide:
> 
>   sun.reflect.reflection.getCallerClass(int depth)
> 
> and for the same function we would do
> 
>   VMStackWalker.getClassContext()[depth];
> 
> You see the difference: Classpath's VMStackWalker enumerates the whole
> stack, whereas Sun's only has to enumerate a few stack frames.

Actually, Sun simply has a bad design. There is no need for arbitrary
depth caller class discovery (as our codebase demonstrates). However,
now that we've got the reference j.u.c implementation it makes sense to
add a method to VMStackWalker that enables us to more efficiently
implement sun.reflect.reflection.getCallerClass.

Regards,
Jeroen



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