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Esolanging Fruit
Esolanging Fruit
00:18
TIL you can do Python-style decorators in Haskell, kinda
For example (flip -> f) = \x y -> x - y
 
5 hours later…
Potato44
Potato44
05:41
@EsolangingFruit I don't quite get what you are trying to convey here. Is that meant to be a view pattern or something from pyhon on the left of the equals?
Esolanging Fruit
Esolanging Fruit
05:59
@Potato44 In Python, the following code: 
@dec
def foo(): ...
is equivalent to 
def foo(): ...
foo = dec(foo)
Similarly, (dec -> f) = ... in Haskell is equivalent to f = dec (...).
It's just a syntactical thing.
Potato44
Potato44
@EsolangingFruit That is quite an interesting use of view patterns, I never thought of using them anywhere but in function arguments.
 
14 hours later…
flawr
flawr
20:26
@EsolangingFruit how exactly is this supposed to work? (I tried it in ghci but got an error?)
H.PWiz
H.PWiz
@flawr Try with -XViewPatterns
Also, I see what it does, but it isn't readable for me
flawr
flawr
Oh I see
Wow there are so many cool extensiosn

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