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| author | sheaf <sam.derbyshire@gmail.com> | 2022-04-07 19:03:05 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2022-04-08 09:43:35 -0400 |
| commit | 777365f18233d7ad032435ea2c93197cbb1d732e (patch) | |
| tree | 059563b83d3ad3270a913cc834dfbbe8e2851e5d /compiler/GHC/Tc/Utils/Monad.hs | |
| parent | c44432db254d2fc960d7864e080cb50e65dfa7c6 (diff) | |
| download | haskell-777365f18233d7ad032435ea2c93197cbb1d732e.tar.gz | |
Correctly report SrcLoc of redundant constraints
We were accidentally dropping the source location information in
certain circumstances when reporting redundant constraints. This patch
makes sure that we set the TcLclEnv correctly before reporting the
warning.
Fixes #21315
Diffstat (limited to 'compiler/GHC/Tc/Utils/Monad.hs')
| -rw-r--r-- | compiler/GHC/Tc/Utils/Monad.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Tc/Utils/Monad.hs b/compiler/GHC/Tc/Utils/Monad.hs index 75d6491bad..dada2c8041 100644 --- a/compiler/GHC/Tc/Utils/Monad.hs +++ b/compiler/GHC/Tc/Utils/Monad.hs @@ -536,7 +536,7 @@ The `tcRnSrcDecls` extends the environments in `gbl_env` and `lcl_env` which we then want to be in scope in `more stuff`. The problem is that `lcl_env :: TcLclEnv` has an IORef for error -messages `tcl_errs`, and another for constraints (`tcl_lie`),a and +messages `tcl_errs`, and another for constraints (`tcl_lie`), and another for Linear Haskell usage information (`tcl_usage`). Now suppose we change it a tiny bit do { (gbl_env, lcl_env) <- checkNoErrs $ |