This sounds like a great idea. I was working with some tests today and it
would have been really useful to have some way to query the current
function/execution context. Seems like passing that through all lets would
go a long way, provided I'm reading this right.
On Friday, February 8, 2013 10:18:54 AM UTC-7, vemv wrote:
>
> Given that: a) fns can have names for debugging purposes, and b) data
> structures can have metadata, wouldn't it be a good idea to let let auto
> attach (where possible) the names of the bindings to their corresponding
> values?
>
> For example, the improved let I'm thinking of would translate this input:
>
> (ns my.namespace)
>
> (defn do-it
> (let [foo (fn [] (throw (Exception.)))
> bar {:hello (/ 0 0)}]))
>
> to:
>
> (ns my.namespace)
>
> (defn do-it
> (let [foo (fn foo [] (throw (Exception.)))
> bar ^{:origin :my.namespace/do-it$let$bar} {:hello (/ 0 0)}]))
>
> This could be used to increase the precision of the stack traces, or in
> IDEs/editors for locating the exact source of an exception.
>
> Do you see such a mechanism being incorporated to clojure.core/let -
> should I open a ticket?
>
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