darcs patch: Add justIf to Data.Maybe

Joachim Breitner mail at joachim-breitner.de
Sat Aug 22 12:10:23 EDT 2009


Am Samstag, den 22.08.2009, 16:10 +0100 schrieb Duncan Coutts:
> In this use case the result is typically a lot bigger than the
> condition, so the condition goes first rather than last.

At first I wrote justIf this way (justIf cond $ value), and then noticed
the how nice "value `justIf` cond" sounds when read out aloud. I’m fine
with either order, and your point about argument size is a valid one.

Joachim Breitner
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