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| author | Jan Stolarek <jan.stolarek@p.lodz.pl> | 2014-07-11 13:54:45 +0200 |
|---|---|---|
| committer | Jan Stolarek <jan.stolarek@p.lodz.pl> | 2015-09-03 05:55:15 +0200 |
| commit | 374457809de343f409fbeea0a885877947a133a2 (patch) | |
| tree | a354d0f4ddb6c32e6c85b853071d2107f6b8398c /testsuite/tests/typecheck/should_fail/tcfail133.stderr | |
| parent | bd16e0bc6af13f1347235782935f7dcd40b260e2 (diff) | |
| download | haskell-374457809de343f409fbeea0a885877947a133a2.tar.gz | |
Injective type families
For details see #6018, Phab:D202 and the wiki page:
https://ghc.haskell.org/trac/ghc/wiki/InjectiveTypeFamilies
This patch also wires-in Maybe data type and updates haddock submodule.
Test Plan: ./validate
Reviewers: simonpj, goldfire, austin, bgamari
Subscribers: mpickering, bgamari, alanz, thomie, goldfire, simonmar,
carter
Differential Revision: https://phabricator.haskell.org/D202
GHC Trac Issues: #6018
Diffstat (limited to 'testsuite/tests/typecheck/should_fail/tcfail133.stderr')
| -rw-r--r-- | testsuite/tests/typecheck/should_fail/tcfail133.stderr | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/testsuite/tests/typecheck/should_fail/tcfail133.stderr b/testsuite/tests/typecheck/should_fail/tcfail133.stderr index 1869cea44b..bba5889603 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail133.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail133.stderr @@ -6,9 +6,10 @@ tcfail133.hs:68:7: error: No instance for (Show r0) arising from a use of ‘show’ The type variable ‘r0’ is ambiguous Potential instances: - instance Show a => Show (Maybe a) -- Defined in ‘GHC.Show’ instance Show Ordering -- Defined in ‘GHC.Show’ instance Show Integer -- Defined in ‘GHC.Show’ + instance (Show a, Show b, Number a, Digit b) => Show (a :@ b) + -- Defined at tcfail133.hs:11:54 ...plus 25 others (use -fprint-potential-instances to see them all) In the expression: show |