diff options
author | Ben Gamari <ben@smart-cactus.org> | 2021-01-05 15:54:42 -0500 |
---|---|---|
committer | Ben Gamari <ben@smart-cactus.org> | 2021-01-05 16:14:31 -0500 |
commit | 1e56f63c3197e7ca1c1e506e083c2bad25d08793 (patch) | |
tree | 7152e5a53fe1c18e6fd5044d5aa3168ab99c3cc6 /hypsrc-test/src/TemplateHaskellQuasiquotes.hs | |
parent | 1d657cf377b5f147b08aafb3ab3a5d11be538331 (diff) | |
parent | 665226f384ee9b0a66a98638ede9eff845f6c45b (diff) |
Merge remote-tracking branch 'origin/ghc-8.10' into ghc-9.0
Diffstat (limited to 'hypsrc-test/src/TemplateHaskellQuasiquotes.hs')
-rw-r--r-- | hypsrc-test/src/TemplateHaskellQuasiquotes.hs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/hypsrc-test/src/TemplateHaskellQuasiquotes.hs b/hypsrc-test/src/TemplateHaskellQuasiquotes.hs new file mode 100644 index 00000000..6d404921 --- /dev/null +++ b/hypsrc-test/src/TemplateHaskellQuasiquotes.hs @@ -0,0 +1,39 @@ +{-# LANGUAGE TemplateHaskell #-} + +module TemplateHaskellQuasiquotes where + +import Language.Haskell.TH + +aDecl :: DecsQ +aDecl = [d| + bar :: $aType -> [ (Int, String) ] + bar $aPattern = $anExpression + |] + +aPattern :: PatQ +aPattern = [p| + [ aCrazyLongVariableName + , _unused + , (y, z) + , ( $aNumberPattern, "hello") + ] + |] + +aNumberPattern :: PatQ +aNumberPattern = [p| + w@v@4.5 + |] + +anExpression, anExpression2 :: ExpQ +anExpression = [e| + [ (1 + $anExpression2, "world") ] + |] +anExpression2 = [| (1 + round pi) |] + +aType :: TypeQ +aType = [t| + [ (Double, String) ] + |] + + + |