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| author | sheaf <sam.derbyshire@gmail.com> | 2023-02-21 17:09:48 +0100 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2023-02-23 17:00:01 -0500 |
| commit | e9e7a00da2c5963a53dbcedaec793400fde07563 (patch) | |
| tree | 880c590a832221fe86566b400cad7010ccca0b80 /testsuite/tests/typecheck/should_fail/T20666.stderr | |
| parent | 8e170f86da9f804b18023a99c7c0add020a42e32 (diff) | |
| download | haskell-e9e7a00da2c5963a53dbcedaec793400fde07563.tar.gz | |
Explicit migration timeline for loopy SC solving
This patch updates the warning message introduced in commit
9fb4ca89bff9873e5f6a6849fa22a349c94deaae to specify an explicit
migration timeline: GHC will no longer support this constraint solving
mechanism starting from GHC 9.10.
Fixes #22912
Diffstat (limited to 'testsuite/tests/typecheck/should_fail/T20666.stderr')
| -rw-r--r-- | testsuite/tests/typecheck/should_fail/T20666.stderr | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/testsuite/tests/typecheck/should_fail/T20666.stderr b/testsuite/tests/typecheck/should_fail/T20666.stderr index 46d0fafcc4..63a0d11c07 100644 --- a/testsuite/tests/typecheck/should_fail/T20666.stderr +++ b/testsuite/tests/typecheck/should_fail/T20666.stderr @@ -3,7 +3,7 @@ T20666.hs:13:10: warning: [GHC-36038] [-Wloopy-superclass-solve (in -Wdefault)] I am solving the constraint ‘Show (T c)’, arising from the superclasses of an instance declaration, in a way that might turn out to loop at runtime. - Future versions of GHC will turn this warning into an error. + Starting from GHC 9.10, this warning will turn into an error. See the user manual, § Undecidable instances and loopy superclasses. Suggested fix: Add the constraint ‘Show (T c)’ to the instance context, @@ -13,7 +13,7 @@ T20666.hs:17:10: warning: [GHC-36038] [-Wloopy-superclass-solve (in -Wdefault)] I am solving the constraint ‘Show (T c)’, arising from the superclasses of an instance declaration, in a way that might turn out to loop at runtime. - Future versions of GHC will turn this warning into an error. + Starting from GHC 9.10, this warning will turn into an error. See the user manual, § Undecidable instances and loopy superclasses. Suggested fix: Add the constraint ‘Show (T c)’ to the instance context, |