diff options
| 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/polykinds/TidyClassKinds.stderr | |
| 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/polykinds/TidyClassKinds.stderr')
| -rw-r--r-- | testsuite/tests/polykinds/TidyClassKinds.stderr | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/testsuite/tests/polykinds/TidyClassKinds.stderr b/testsuite/tests/polykinds/TidyClassKinds.stderr new file mode 100644 index 0000000000..69ca49c188 --- /dev/null +++ b/testsuite/tests/polykinds/TidyClassKinds.stderr @@ -0,0 +1,8 @@ + +TidyClassKinds.hs:12:10: error: + • Illegal instance declaration for + ‘Poly (k1 -> *) (k1 -> *) (ProxySyn k1) (ProxySyn k1)’ + (All instance types must be of the form (T t1 ... tn) + where T is not a synonym. + Use TypeSynonymInstances if you want to disable this.) + • In the instance declaration for ‘Poly ProxySyn ProxySyn’ |