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| author | Herbert Valerio Riedel <hvr@gnu.org> | 2014-09-15 08:37:30 +0200 |
|---|---|---|
| committer | Herbert Valerio Riedel <hvr@gnu.org> | 2014-09-15 08:37:39 +0200 |
| commit | c0fa383d9109800a4e46a81b418f1794030ba1bd (patch) | |
| tree | 19dc80e4d266eb6fd7b56b6f61d4f7ed4f10a097 /testsuite/tests/ghci/scripts/T4175.stdout | |
| parent | 004c5f4fec78414943d788c2a8b42a4500272949 (diff) | |
| download | haskell-c0fa383d9109800a4e46a81b418f1794030ba1bd.tar.gz | |
Export `Traversable()` and `Foldable()` from Prelude
This exposes *only* the type-classes w/o any of their methods.
This is the very first step for implementing BPP (see #9586), which
already requires breaking up several import-cycles leading back to `Prelude`.
Ideally, importing `Prelude` should be avoided in most `base` modules,
as `Prelude` does not define any entities, but rather re-exports
existing ones.
Test Plan: validate passes
Reviewers: ekmett, austin
Reviewed By: ekmett, austin
Subscribers: simonmar, ezyang, carter
Differential Revision: https://phabricator.haskell.org/D209
GHC Trac Issues: #9586
Diffstat (limited to 'testsuite/tests/ghci/scripts/T4175.stdout')
| -rw-r--r-- | testsuite/tests/ghci/scripts/T4175.stdout | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/testsuite/tests/ghci/scripts/T4175.stdout b/testsuite/tests/ghci/scripts/T4175.stdout index 0cf5e9b5c0..2a75b0da6a 100644 --- a/testsuite/tests/ghci/scripts/T4175.stdout +++ b/testsuite/tests/ghci/scripts/T4175.stdout @@ -36,6 +36,8 @@ instance Ord a => Ord (Maybe a) -- Defined in ‘Data.Maybe’ instance Read a => Read (Maybe a) -- Defined in ‘GHC.Read’ instance Show a => Show (Maybe a) -- Defined in ‘GHC.Show’ instance Applicative Maybe -- Defined in ‘Data.Maybe’ +instance Foldable Maybe -- Defined in ‘Data.Foldable’ +instance Traversable Maybe -- Defined in ‘Data.Traversable’ type instance A (Maybe a) a = a -- Defined at T4175.hs:9:1 data Int = I# Int# -- Defined in ‘GHC.Types’ instance C Int -- Defined at T4175.hs:18:10 |