[ghc-steering-committee] #344: Negative Literals Improved, rec: accept

[Joachim Breitner]

Dear Committee,

a refinement to the NegativeLiterals extension has been proposed by
Vladislav Zavialov (int-index).

https://github.com/ghc-proposals/ghc-proposals/pull/344
https://github.com/int-index/ghc-proposals/blob/negative-literals-improved/proposals/0000-negative-literals-improved.md


He noticed that

  x-1

parses as

  x (-1)

which is probably not what people expect. With this change it would be
parsed as

  x - 1

by requiring that a negative literal may not be preceded by a “closing
toking”.

Nice side effect: This makes NegativeLiterals a subset of
LexicalNegation (according to the author).

The proposal has been received positively by the crowd on Github.


I suggest we accept that proposal.

Cheers,
Joachim


-- 
Joachim Breitner
  mail at joachim-breitner.de
  http://www.joachim-breitner.de/