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| author | Sasa Bogicevic <t4nt0r@protonmail.com> | 2018-10-15 13:47:48 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-10-15 17:41:48 -0400 |
| commit | 0b0cb484eb0b51bf5485dfadff7cd8a079ceb16e (patch) | |
| tree | 8ae642d14e0970391bf713c2a400061f45bd3c04 /docs | |
| parent | 846fe90464a1916df4ea72659255963a596eec84 (diff) | |
| download | haskell-0b0cb484eb0b51bf5485dfadff7cd8a079ceb16e.tar.gz | |
Surprising error message with bang pattern
Reviewers: bgamari, alanz
Reviewed By: bgamari
Subscribers: sgraf, mpickering, rwbarton, thomie, carter
GHC Trac Issues: #13600
Differential Revision: https://phabricator.haskell.org/D5040
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/users_guide/using-warnings.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/users_guide/using-warnings.rst b/docs/users_guide/using-warnings.rst index aeabbe9713..f603a4cf28 100644 --- a/docs/users_guide/using-warnings.rst +++ b/docs/users_guide/using-warnings.rst @@ -39,6 +39,7 @@ generally likely to indicate bugs in your program. These are: * :ghc-flag:`-Winaccessible-code` * :ghc-flag:`-Wstar-is-type` * :ghc-flag:`-Wstar-binder` + * :ghc-flag:`-Wspace-after-bang` The following flags are simple ways to select standard "packages" of warnings: @@ -1256,6 +1257,12 @@ of ``-W(no-)*``. per-module basis with :ghc-flag:`-Wno-simplifiable-class-constraints <-Wsimplifiable-class-constraints>`. +.. ghc-flag:: -Wspace-after-bang + :shortdesc: warn for missing space before the second argument + of an infix definition of ``(!)`` when + :ghc-flag:`-XBangPatterns` are not enabled + :type: dynamic + :reverse: -Wno-missing-space-after-bang .. ghc-flag:: -Wtabs :shortdesc: warn if there are tabs in the source file :type: dynamic |