Or maybe "pattern ascription"? "type-ascription" is implied as
"ascription" isn't commonly used for something else (AFAIK).
Sylvain
On 08/01/2018 13:59, Simon Peyton Jones via ghc-devs wrote:
I like the idea of distinguishing “signatures” from “annotations”.
But then what is currently a “pattern signature” with extension
-XPatternSignatures, becomes “type annotation in a pattern” or perhaps
“pattern type-annotation” which is a bit clumsy.
Possibly “type specification” instead of “type annotation”. Thus
“pattern type-spec” which is snappier.
Simon
*From:*ghc-devs [mailto:ghc-devs-boun...@haskell.org] *On Behalf Of
*Spiwack, Arnaud
*Sent:* 08 January 2018 10:11
*Cc:* Joachim Breitner <m...@joachim-breitner.de>; ghc-devs@haskell.org
*Subject:* Re: pattern signatures
In my eyes, signatures are something which goes with a definition.
So (a) is a pattern (synonym) signature, while (b) is merely a type
annotation on a pattern.
On Fri, Jan 5, 2018 at 11:23 PM, Iavor Diatchki
<iavor.diatc...@gmail.com <mailto:iavor.diatc...@gmail.com>> wrote:
Well, as you say, "pattern signature" makes sense for both, so I
would expect to use context to disambiguate. If I wanted to be
explicit about which one I meant, I'd use:
a) "Pattern synonym signature"
b) "Signature on a pattern"
-Iavor
On Fri, Jan 5, 2018 at 1:12 PM Joachim Breitner
<m...@joachim-breitner.de <mailto:m...@joachim-breitner.de>> wrote:
Hi,
Am Freitag, den 05.01.2018, 13:42 -0500 schrieb Brandon Allbery:
> Further complicated by the fact that that form used to be
called a
> "pattern signature" with accompanying extension, until that was
> folded into ScopedTypeVariables extension.
which I find super confusing, because sometimes I want a
signature on a
pattern and it is counter-intuitive to me why I should not
longer use
the obviously named PatternSignatures extension but rather the
at first
glance unrelated ScopedTypeVariable extension.
But I am derailing the discussion a bit.
Cheers,
Joachim
--
Joachim Breitner
m...@joachim-breitner.de <mailto:m...@joachim-breitner.de>
http://www.joachim-breitner.de/
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