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| author | Roland Senn <rsx@bluewin.ch> | 2020-02-17 10:58:32 +0100 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2020-02-20 21:21:28 -0500 |
| commit | 8b76d4574d703ee66f346775d408220fdddb8155 (patch) | |
| tree | 2db0fd5588029d788dc36dba42ab97b9ed468e82 /compiler/GHC/Rename | |
| parent | 65b7256a88ae2bd878da5d026e4183cba6f6eedf (diff) | |
| download | haskell-8b76d4574d703ee66f346775d408220fdddb8155.tar.gz | |
Fix #17832: Weird handling of exports named main in 8.10-rc1
Switching from `lookupGlobalOccRn_maybe` to `lookupInfoOccRn`
to check whether a `main` function is in scope. Unfortunately
`lookupGlobalOccRn_maybe` complains if there are multiple `main`
functions in scope.
Diffstat (limited to 'compiler/GHC/Rename')
| -rw-r--r-- | compiler/GHC/Rename/Env.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/GHC/Rename/Env.hs b/compiler/GHC/Rename/Env.hs index 964b49412a..d300761a68 100644 --- a/compiler/GHC/Rename/Env.hs +++ b/compiler/GHC/Rename/Env.hs @@ -1062,6 +1062,9 @@ lookupInfoOccRn :: RdrName -> RnM [Name] -- It finds all the GREs that RdrName could mean, not complaining -- about ambiguity, but rather returning them all -- C.f. #9881 +-- lookupInfoOccRn is also used in situations where we check for +-- at least one definition of the RdrName, not complaining about +-- multiple definitions. (See #17832) lookupInfoOccRn rdr_name = lookupExactOrOrig rdr_name (:[]) $ do { rdr_env <- getGlobalRdrEnv |