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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/typecheck/should_compile/tc127.hs
parentebd422aed41048476aa61dd4c520d43becd78682 (diff)
downloadhaskell-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.hs27
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
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+++ b/testsuite/tests/typecheck/should_compile/tc127.hs
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+{-# 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 ()