[GHC] #14812: Dot-Notation for Flipped Function Application
GHC
ghc-devs at haskell.org
Fri Feb 16 14:14:53 UTC 2018
#14812: Dot-Notation for Flipped Function Application
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Reporter: tepan | Owner: (none)
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 8.2.2
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Comment (by AntC):
Replying to [ticket:14812 tepan]:
> Please allow to put a dot `.` (without whitespaces) between two things
for ''flipped'' function application. This could make for code in pseudo-
OOP style:
Great idea! It's been suggested many times, including by SPJ
https://prime.haskell.org/wiki/TypeDirectedNameResolution; and especially
to represent field application to a record or struct, similar to OOP
https://ghc.haskell.org/trac/ghc/wiki/Records/DeclaredOverloadedRecordFields/DotPostfix.
Sadly, it was shot down in flames; because it seems there's lots of code
using dot as function composition not surrounded by whitespace -- for
example, it's a common idiom with lenses.
But I think worth asking again. As others have said, please submit a
proposal on github.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14812#comment:11>
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