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| author | chessai <chessai1996@gmail.com> | 2018-12-26 12:12:37 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-12-26 12:12:38 -0500 |
| commit | 29fc289449adc6af3abd12f66bda98e0a1bad388 (patch) | |
| tree | 8da1c1d254e4d060ae7c45426533c2cdb834a409 /docs/users_guide/8.8.1-notes.rst | |
| parent | 942b501972139ed95b49b75cb8c0523b460f6d10 (diff) | |
| download | haskell-D5451.tar.gz | |
add -Wmissing-deriving-strategiesD5451
Warn users when -XDerivingStrategies is enabled but not used, at each
potential use site.
add -Wmissing-deriving-strategies
Reviewers: bgamari, RyanGlScott
Subscribers: andrewthad, rwbarton, carter
GHC Trac Issues: #15798
Differential Revision: https://phabricator.haskell.org/D5451
Diffstat (limited to 'docs/users_guide/8.8.1-notes.rst')
| -rw-r--r-- | docs/users_guide/8.8.1-notes.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/users_guide/8.8.1-notes.rst b/docs/users_guide/8.8.1-notes.rst index 6e52a63038..836736499b 100644 --- a/docs/users_guide/8.8.1-notes.rst +++ b/docs/users_guide/8.8.1-notes.rst @@ -84,6 +84,10 @@ Compiler - The deprecated ghc-flag ``-Wamp`` has been removed. +- Add new :ghc-flag:`-Wmissing-deriving-strategies` flag that warns users when they are not + taking advantage of :extension:`DerivingStrategies`. The warning is supplied at each + ``deriving`` site. + Runtime system ~~~~~~~~~~~~~~ |