what is the difference between syntax-case matched identifiers, and those
provided by let. This example crashes and burns on load:
(define-syntax (fine1 stx)
(let (
[a 7]
[b 9]
)
(syntax/loc stx
(+ a b)
)))
Which begs the question, how do you compute something at syntax expansion time,
and then pass that into a syntax/loc? Everything inside the syntax loc is
program stuff, not syntax expansion time stuff, so we don't put syntax
expansion time computation inside of it.
The manual says that the second argument to syntax/loc is a tempalte, but any
combination of quasiquote and camma I try here gets bounced back with syntax
errors.
> Greg, syntax/loc is beautiful (so far ;-) it goes beyond my hopes, seems it
> shoudl be prominent in the docs.
>
> (define-syntax (messup4 stx)
> (syntax/loc stx
> (let (
> [a 7]
> [b 9]
> )
> (^ a b)
> )))
>
> (messup4)
>
...
> The error message points directly at the caret in the quoted string. (who
> knows maybe our programmer thought that meant xor?)
>
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