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author | Richard Eisenberg <rae@richarde.dev> | 2019-12-05 16:47:34 +0000 |
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committer | Richard Eisenberg <rae@richarde.dev> | 2019-12-10 15:31:36 +0000 |
commit | bc5873d9a2195eac08a8d78e4562a608fc1eb6ce (patch) | |
tree | 5cacdd01a94459071860d2094bc5fad6c758043b /rts | |
parent | 5a4b8d0cf2ff83d1a04826b9624fffec7b9a5683 (diff) | |
download | haskell-wip/t17541.tar.gz |
Warn on inferred polymorphic recursionwip/t17541
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}
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