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author | David Terei <davidterei@gmail.com> | 2011-07-20 11:09:03 -0700 |
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committer | David Terei <davidterei@gmail.com> | 2011-07-20 11:26:35 -0700 |
commit | 16514f272fb42af6e9c7674a9bd6c9dce369231f (patch) | |
tree | e4f332b45fe65e2a7a2451be5674f887b42bf199 /testsuite/tests/typecheck/should_compile/tc127.hs | |
parent | ebd422aed41048476aa61dd4c520d43becd78682 (diff) | |
download | haskell-16514f272fb42af6e9c7674a9bd6c9dce369231f.tar.gz |
Move tests from tests/ghc-regress/* to just tests/*
Diffstat (limited to 'testsuite/tests/typecheck/should_compile/tc127.hs')
-rw-r--r-- | testsuite/tests/typecheck/should_compile/tc127.hs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/tc127.hs b/testsuite/tests/typecheck/should_compile/tc127.hs new file mode 100644 index 0000000000..58ccca7a5e --- /dev/null +++ b/testsuite/tests/typecheck/should_compile/tc127.hs @@ -0,0 +1,27 @@ +{-# LANGUAGE ImplicitParams #-} + +-- !!! Another implicit parameter test, from Alastair Reid + +module ShouldCompile where + +import Data.Maybe + +type Env = ([(String,Int)],Int) + +ident1 :: (?env :: Env) => String -> Int +ident1 x = y + where + env = ?env + y = fromJust (lookup x (fst env)) + +ident2 :: (?env :: Env) => String -> Int +ident2 x = y + where + y = fromJust (lookup x (fst ?env)) + + +-- Two more tests from Jeff Lewis +x () = y where y = ?wibble + +f () = ?wibble :: Int +g () = f () |