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| author | David Terei <davidterei@gmail.com> | 2011-07-20 11:09:03 -0700 |
|---|---|---|
| committer | David Terei <davidterei@gmail.com> | 2011-07-20 11:26:35 -0700 |
| commit | 16514f272fb42af6e9c7674a9bd6c9dce369231f (patch) | |
| tree | e4f332b45fe65e2a7a2451be5674f887b42bf199 /testsuite/tests/typecheck/should_run/tcrun006.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_run/tcrun006.hs')
| -rw-r--r-- | testsuite/tests/typecheck/should_run/tcrun006.hs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_run/tcrun006.hs b/testsuite/tests/typecheck/should_run/tcrun006.hs new file mode 100644 index 0000000000..f3d0e13cef --- /dev/null +++ b/testsuite/tests/typecheck/should_run/tcrun006.hs @@ -0,0 +1,16 @@ +{-# LANGUAGE DatatypeContexts #-} +-- !!! Selectors for data and newtypes with contexts + +-- This program, reported in Aug'00 by Jose Emilio Labra Gayo +-- gave rise to a Lint error because the selector 'newout' below +-- was given the type +-- Eq f => NewT f -> f +-- but lacked a dictionary argument in its body. + +module Main where + +newtype (Eq f) => NewT f = NewIn { newout :: f } +data (Eq f) => DataT f = DataIn { dataout :: f } + +main = print (newout (NewIn "ok new") ++ dataout (DataIn " ok data")) + |