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authorRyan Scott <ryan.gl.scott@gmail.com>2017-12-20 19:25:37 -0500
committerRyan Scott <ryan.gl.scott@gmail.com>2017-12-20 19:25:38 -0500
commit9cb289abc582c9eb8337a2621baf58e35feeff46 (patch)
tree873c348f3666bf35bb6e4e632c40ad6669a9de15 /testsuite/tests/deriving
parent9caf40e9d7233a2a6e78a0c4f2d2f13acbf804dd (diff)
downloadhaskell-9cb289abc582c9eb8337a2621baf58e35feeff46.tar.gz
Remove hack put in place for #12512
Summary: Previously, I added an ad hoc check for unboxed tuples and sums in standalone-derived instances to fix #12512, under the pretense that polymorphism over `UnboxedTupleRep` and `UnboxedSumRep` was a lie. But that is no longer the case, and so this ad hoc check can be removed entirely. Less code, and easier to understand. Test Plan: make test TEST=T12512 Reviewers: bgamari Reviewed By: bgamari Subscribers: rwbarton, thomie, carter Differential Revision: https://phabricator.haskell.org/D4271
Diffstat (limited to 'testsuite/tests/deriving')
-rw-r--r--testsuite/tests/deriving/should_fail/T12512.stderr6
1 files changed, 4 insertions, 2 deletions
diff --git a/testsuite/tests/deriving/should_fail/T12512.stderr b/testsuite/tests/deriving/should_fail/T12512.stderr
index a62cda6b99..78c49f4233 100644
--- a/testsuite/tests/deriving/should_fail/T12512.stderr
+++ b/testsuite/tests/deriving/should_fail/T12512.stderr
@@ -1,10 +1,12 @@
T12512.hs:10:1: error:
• Can't make a derived instance of ‘Wat1 (# a, b #)’:
- The last argument of the instance cannot be an unboxed tuple
+ ‘Wat1’ is not a stock derivable class (Eq, Show, etc.)
+ Try enabling DeriveAnyClass
• In the stand-alone deriving instance for ‘Wat1 (# a, b #)’
T12512.hs:13:1: error:
• Can't make a derived instance of ‘Wat2 (# a | b #)’:
- The last argument of the instance cannot be an unboxed sum
+ ‘Wat2’ is not a stock derivable class (Eq, Show, etc.)
+ Try enabling DeriveAnyClass
• In the stand-alone deriving instance for ‘Wat2 (# a | b #)’