On Aug 2, 2010, at 3:34 , Kyle Schaffrick wrote:

> Hello,
> 
> I'm trying to write a library with two main parts. The first is a
> macro, I'll call it 'with-feature, that walks through forms passed
> inside it, and any time it sees a call to another function in my
> library, 'feature, do some transformations.
> 
> The problem I'm concerned about is as follows: When my macro sees the
> forms that are passed into it, the symbols come in however the consumer
> of the library wrote them. So say I :require my library and alias it to
> 'mylib', then the call 'with-feature is looking for appears as
> 'mylib/feature. Or, I could :use the library, and then it would appear
> as 'feature, or I could alias 'feature to 'banana--you get the idea.
> 
> I don't want to reserve some magic symbol name that defies namespace
> rules, so that if the library consumer code uses the symbol 'feature
> to mean something different, they get bizarre results.
> 
> What is a good pattern for writing the "matching" logic in such a
> selectively-transforming macro so that it can properly find the magic
> call it's looking for in the presence of normal namespacing behavior?
> 
> Thanks,

Hi Kyle,
I face a simular chalange in clj-sandbox, and I ended up matching against the 
variable name only not the namespace so bla not a.b.c/bla. I know it's not 
perfect but at least it only yields false positives in the worst case, not 
false negatives :).

Regards,
heinz.

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