On Mon, 27 Dec 2010, Jonathan Geddes wrote:
#1 Parse a string at compile-time so that a custom syntax for
representing data can be used. At the extreme, this "data" might even
be an EDSL.
I think it would be enough, if the compiler could be told to unfold an
expression like
parse "text in a domain specific language"
at compile time.
#2 Provide instances automatically.
http://www.haskell.org/ghc/docs/7.0-latest/html/users_guide/generic-classes.html
I also think that Template Haskell is used too much. Several things that
are done in existing libraries could be done in plain Haskell in a better
way. For the cases where Template Haskell is really needed, I'd prefer a
solution that allows to generate the code before compilation, such that
packages with automatically generated code can be run also on compilers
that do not support Template Haskell.
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