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authorBen Gamari <ben@smart-cactus.org>2021-01-05 16:23:02 -0500
committerBen Gamari <ben@smart-cactus.org>2021-01-05 16:23:02 -0500
commit99f61534a470b84c424fde0835215de6a3b6d721 (patch)
tree7152e5a53fe1c18e6fd5044d5aa3168ab99c3cc6 /hypsrc-test/src/TemplateHaskellQuasiquotes.hs
parent3e29ec51498dfe092b228889343dc8370ec0e64b (diff)
parent1e56f63c3197e7ca1c1e506e083c2bad25d08793 (diff)
Merge commit '1e56f63c3197e7ca1c1e506e083c2bad25d08793' into ghc-9.0
Diffstat (limited to 'hypsrc-test/src/TemplateHaskellQuasiquotes.hs')
-rw-r--r--hypsrc-test/src/TemplateHaskellQuasiquotes.hs39
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
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--- /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) ]
+ |]
+
+
+