diff options
| author | Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com> | 2015-07-10 16:23:15 +0200 |
|---|---|---|
| committer | Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk> | 2015-08-21 18:22:29 +0100 |
| commit | e4740dd872d1110247557eb7b20124c22e427789 (patch) | |
| tree | bfeab850ba099634d72a1c16a1df0a863b5edb84 /haddock-api/src/Haddock/Backends/Xhtml | |
| parent | dc25b7099a0d54c03bdf51dfb9a4e286942d9c31 (diff) | |
Create simple utility module for type specialization.
Diffstat (limited to 'haddock-api/src/Haddock/Backends/Xhtml')
| -rw-r--r-- | haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs b/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs new file mode 100644 index 00000000..a0d64c0f --- /dev/null +++ b/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs @@ -0,0 +1,21 @@ +{-# LANGUAGE FlexibleContexts #-} + + +module Haddock.Backends.Xhtml.Specialize (specialize) where + + +import Haddock.Syb + +import GHC + +import Data.Data + + +specialize :: (Eq name, Data (HsType name)) + => name -> HsType name -> HsType name -> HsType name +specialize name details = everywhere (mkT $ specialize' name details) + +specialize' :: Eq name => name -> HsType name -> HsType name -> HsType name +specialize' name details (HsTyVar name') | name == name' = details +specialize' _ _ typ = typ +
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