[Haskell-cafe] Status of TypeDirectedNameResolution proposal?
Neil Brown
nccb2 at kent.ac.uk
Tue Nov 17 07:33:00 EST 2009
Simon Peyton-Jones wrote:
> | What's the status of the TDNR proposal [1]?
>
> It's stalled. As far as I know, there's been very little discussion about it. It's not a trivial thing to implement, and it treads on delicate territory (how "." is treated).
Having skimmed the page, it seems like the re-use of "." is one of the
major difficulties of the proposal. Would it be possible to use "->"?
It has been used for accessing members in C and C++, so it is not too
unusual a choice. It is already special in Haskell so it wouldn't break
anyone's code -- but do its other uses (case statements and lambdas)
mean that it would cause problems in the grammar if re-used for TDNR?
Neil.
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