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-rw-r--r--testsuite/tests/parser/should_compile/read027.hs14
1 files changed, 14 insertions, 0 deletions
diff --git a/testsuite/tests/parser/should_compile/read027.hs b/testsuite/tests/parser/should_compile/read027.hs
new file mode 100644
index 0000000000..a6893450f8
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+++ b/testsuite/tests/parser/should_compile/read027.hs
@@ -0,0 +1,14 @@
+module ShouldCompile where
+
+infix 5 |-
+infix 9 :=
+
+data Equal = Char := Int
+
+-- fails in GHC (all versions), due to not doing fixity resolution on
+-- the lhs before deciding which is the function symbol.
+
+(|-) :: Int -> Equal -> Bool
+0 |- x:=y = 1 |- x:=y -- XXX fails here
+2 |- (x:=y) = 0 |- x:=y
+_ |- _ = False