diff options
| author | Lennart Kolmodin <kolmodin@gmail.com> | 2014-11-20 23:28:34 -0600 |
|---|---|---|
| committer | Austin Seipp <austin@well-typed.com> | 2014-11-20 23:32:16 -0600 |
| commit | 417809baaf7d1fc6a7c708fa195ace277059c3d3 (patch) | |
| tree | 850eca2017a80024cbe41115590aa0c955bffceb /compiler/typecheck | |
| parent | c6322eebea61dd29d0dab698cb89334596851b9d (diff) | |
| download | haskell-wip/merge.tar.gz | |
ghc allow --show-options and --interactive togetherwip/merge
Summary:
Previously --show-options showed all options that GHC accepts.
Now, it'll only show the options that have effect in non-interactive
modes.
This change also adds support for using --interactive together with
--show-options, making it show all options that have effect in the interactive
mode.
The CmdLineParser is updated to know about ghc modes, and then each flag
is annotated with which mode it has effect.
This fixes #9259.
Test Plan:
Try out --show-options with --interactive on the command line. With and without
--interactive should give different results.
Reviewers: austin
Reviewed By: austin
Subscribers: jstolarek, thomie, carter, simonmar
Differential Revision: https://phabricator.haskell.org/D337
GHC Trac Issues: #9259
Conflicts:
compiler/main/DynFlags.hs
Diffstat (limited to 'compiler/typecheck')
| -rw-r--r-- | compiler/typecheck/TcDeriv.lhs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/typecheck/TcDeriv.lhs b/compiler/typecheck/TcDeriv.lhs index aac4a7b94e..786cea9277 100644 --- a/compiler/typecheck/TcDeriv.lhs +++ b/compiler/typecheck/TcDeriv.lhs @@ -1438,7 +1438,7 @@ checkFlag flag (dflags, _, _) where why = ptext (sLit "You need ") <> text flag_str <+> ptext (sLit "to derive an instance for this class") - flag_str = case [ s | (s, f, _) <- xFlags, f==flag ] of + flag_str = case [ flagSpecName f | f <- xFlags , flagSpecFlag f == flag ] of [s] -> s other -> pprPanic "checkFlag" (ppr other) |