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| author | Richard Eisenberg <eir@cis.upenn.edu> | 2015-12-24 14:33:19 -0500 |
|---|---|---|
| committer | Richard Eisenberg <eir@cis.upenn.edu> | 2015-12-24 14:37:39 -0500 |
| commit | 2db18b8135335da2da9918b722699df684097be9 (patch) | |
| tree | 660dd90916aa6568694bbe39cdab83c7af98c5d7 /testsuite/tests/typecheck/should_fail/tcfail174.hs | |
| parent | 48db13d279d592ed3044cbaf3513854bcb0d3dce (diff) | |
| download | haskell-2db18b8135335da2da9918b722699df684097be9.tar.gz | |
Visible type application
This re-working of the typechecker algorithm is based on
the paper "Visible type application", by Richard Eisenberg,
Stephanie Weirich, and Hamidhasan Ahmed, to be published at
ESOP'16.
This patch introduces -XTypeApplications, which allows users
to say, for example `id @Int`, which has type `Int -> Int`. See
the changes to the user manual for details.
This patch addresses tickets #10619, #5296, #10589.
Diffstat (limited to 'testsuite/tests/typecheck/should_fail/tcfail174.hs')
| -rw-r--r-- | testsuite/tests/typecheck/should_fail/tcfail174.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/testsuite/tests/typecheck/should_fail/tcfail174.hs b/testsuite/tests/typecheck/should_fail/tcfail174.hs index 47c63d7248..41fc18fc66 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail174.hs +++ b/testsuite/tests/typecheck/should_fail/tcfail174.hs @@ -7,6 +7,7 @@ data Capture a = Base a g :: Capture (forall a . a -> a) g = Base id -- Fails; need a rigid signature on 'id' + -- Actually, succeeds now, with visible type application -- This function should definitely be rejected, with or without type signature @@ -14,4 +15,3 @@ h1 = Capture g h2 :: Capture b h2 = Capture g - |