Hi,
x :: Integer - instruction1 -- Require ScopedTypeVariables
Indeed, that does require ScopedTypeVariables to be enabled, but this
basic use case is not clearly covered in the ScopedTypeVariables
documentation.
Also, it is not clear to me why ScopedTypeVariables is required at all
here, as
Hi,
On 20.01.2012, at 09:30, Paul R wrote:
Hi,
x :: Integer - instruction1 -- Require ScopedTypeVariables
This is still enabled by the PatternSignatures extensions.
Indeed, that does require ScopedTypeVariables to be enabled, but this
basic use case is not clearly covered in the
Dear all,
I wanted to voice support for a partial type annotations. Here's my
usage scenario: I have a monad for an imperative EDSL, which has an
associated expression data type,
class (Monad m, Expression (ExprTyp m)) = MyDSLMonad m where
data ExprTyp m :: * - *
and you write
On 20.01.2012 00:37, Nicholas Tung wrote:
Dear all,
I wanted to voice support for a partial type annotations. Here's my
usage scenario: I have a monad for an imperative EDSL, which has an
associated expression data type,
I wanted such extension more than once. For me it's useful when
Oleg has described a grody hack which achieves this effect.
http://okmij.org/ftp/Haskell/types.html#partial-sigs
I agree more first class support for this would be nice.
Edward
Excerpts from Nicholas Tung's message of Thu Jan 19 15:37:28 -0500 2012:
Dear all,
I wanted to voice
On Thu, Jan 19, 2012 at 13:16, Aleksey Khudyakov
alexey.sklad...@gmail.comwrote:
On 20.01.2012 00:37, Nicholas Tung wrote:
Dear all,
I wanted to voice support for a partial type annotations. Here's my
usage scenario: I have a monad for an imperative EDSL, which has an
associated
On Thu, Jan 19, 2012 at 15:02, Edward Z. Yang ezy...@mit.edu wrote:
Oleg has described a grody hack which achieves this effect.
http://okmij.org/ftp/Haskell/types.html#partial-sigs
I agree more first class support for this would be nice.
Edward
That's an amusing hack, but does it
In the spirit of Oleg's hack, but with nicer combinator support, you can
use the patch combinators I just uploaded to Hackage (prompted by this
thread):
http://hackage.haskell.org/package/patch-combinators
Your example then becomes:
my_code_block = do
x - instruction1 -:: tCon
