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authorDavid Terei <davidterei@gmail.com>2011-07-20 11:09:03 -0700
committerDavid Terei <davidterei@gmail.com>2011-07-20 11:26:35 -0700
commit16514f272fb42af6e9c7674a9bd6c9dce369231f (patch)
treee4f332b45fe65e2a7a2451be5674f887b42bf199 /testsuite/tests/gadt/gadt-dim3.hs
parentebd422aed41048476aa61dd4c520d43becd78682 (diff)
downloadhaskell-16514f272fb42af6e9c7674a9bd6c9dce369231f.tar.gz
Move tests from tests/ghc-regress/* to just tests/*
Diffstat (limited to 'testsuite/tests/gadt/gadt-dim3.hs')
-rw-r--r--testsuite/tests/gadt/gadt-dim3.hs25
1 files changed, 25 insertions, 0 deletions
diff --git a/testsuite/tests/gadt/gadt-dim3.hs b/testsuite/tests/gadt/gadt-dim3.hs
new file mode 100644
index 0000000000..ae43147c92
--- /dev/null
+++ b/testsuite/tests/gadt/gadt-dim3.hs
@@ -0,0 +1,25 @@
+{-# LANGUAGE GADTs #-}
+
+module ShouldSucceed5 where
+
+
+data T a where
+ C :: T Bool
+ D :: T Int
+
+
+data Y a where
+ E :: Y Bool
+
+
+-- should succeed, the first branch is simply inaccessible
+foo :: T Bool -> Bool
+foo (D) = True
+foo (C) = False
+
+-- should succeed, the branch is inaccessible and not even type checked
+baz :: Y Int -> Int
+baz (E) = "dimitris!"
+
+-- should fail => it is an attempt to call an inaccessible branch
+test = baz (E)