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| author | Richard Eisenberg <rae@richarde.dev> | 2019-12-05 16:47:34 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2019-12-11 14:12:55 -0500 |
| commit | 2d1b9619e56e1a83fba9a630e7735adb8ac7c16a (patch) | |
| tree | 27d20f3e760675e27dc874324dbbc02dfecc5ef0 /testsuite/tests/polykinds/T15881.stderr | |
| parent | f80c4a66ae219afa7bd4172441f4e94ba649c9d9 (diff) | |
| download | haskell-2d1b9619e56e1a83fba9a630e7735adb8ac7c16a.tar.gz | |
Warn on inferred polymorphic recursion
Silly users sometimes try to use visible dependent quantification
and polymorphic recursion without a CUSK or SAK. This causes
unexpected errors. So we now adjust expectations with a bit
of helpful messaging.
Closes #17541 and closes #17131.
test cases: dependent/should_fail/T{17541{,b},17131}
Diffstat (limited to 'testsuite/tests/polykinds/T15881.stderr')
| -rw-r--r-- | testsuite/tests/polykinds/T15881.stderr | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/testsuite/tests/polykinds/T15881.stderr b/testsuite/tests/polykinds/T15881.stderr index 4fde71dab7..8f395735db 100644 --- a/testsuite/tests/polykinds/T15881.stderr +++ b/testsuite/tests/polykinds/T15881.stderr @@ -3,3 +3,4 @@ T15881.hs:8:18: error: • Occurs check: cannot construct the infinite kind: k0 ~ k0 -> * • In the first argument of ‘n’, namely ‘n’ In the kind ‘n n’ + In the data type declaration for ‘A’ |