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authorHécate <hecate+gitlab@glitchbra.in>2021-01-07 22:53:12 +0100
committerMarge Bot <ben+marge-bot@smart-cactus.org>2021-01-27 17:40:32 -0500
commit08fba093bb0b9e186cad9e35e3f58397456c7b4a (patch)
tree630a6c9f1e42b5aa926379a39d9f4fedd1fbd137 /compiler
parent5d6009a88156ad42b387383e41a7e0707c7f06a4 (diff)
downloadhaskell-08fba093bb0b9e186cad9e35e3f58397456c7b4a.tar.gz
Remove -XMonadFailDesugaring references
Diffstat (limited to 'compiler')
-rw-r--r--compiler/GHC/Driver/Session.hs2
-rw-r--r--compiler/GHC/Rename/Expr.hs7
2 files changed, 3 insertions, 6 deletions
diff --git a/compiler/GHC/Driver/Session.hs b/compiler/GHC/Driver/Session.hs
index 8e92fc974f..64c945a7cf 100644
--- a/compiler/GHC/Driver/Session.hs
+++ b/compiler/GHC/Driver/Session.hs
@@ -3647,8 +3647,6 @@ xFlagsDeps = [
flagSpec "LinearTypes" LangExt.LinearTypes,
flagSpec "MagicHash" LangExt.MagicHash,
flagSpec "MonadComprehensions" LangExt.MonadComprehensions,
- depFlagSpec "MonadFailDesugaring" LangExt.MonadFailDesugaring
- "MonadFailDesugaring is now the default behavior",
flagSpec "MonoLocalBinds" LangExt.MonoLocalBinds,
depFlagSpecCond "MonoPatBinds" LangExt.MonoPatBinds
id
diff --git a/compiler/GHC/Rename/Expr.hs b/compiler/GHC/Rename/Expr.hs
index bfa773ed9f..55618978a5 100644
--- a/compiler/GHC/Rename/Expr.hs
+++ b/compiler/GHC/Rename/Expr.hs
@@ -780,10 +780,9 @@ exhaustive list). How we deal with pattern match failure is context-dependent.
entirely. So, for list comprehensions, the fail function is set to 'Nothing'
for clarity.
- * In the case of monadic contexts (e.g. monad comprehensions, do, and mdo
- expressions) we want pattern match failure to be desugared to the appropriate
- 'fail' function (either that of Monad or MonadFail, depending on whether
- -XMonadFailDesugaring is enabled.)
+* In the case of monadic contexts (e.g. monad comprehensions, do, and mdo
+ expressions) we want pattern match failure to be desugared to the
+ 'fail' function (from MonadFail type class).
At one point we failed to make this distinction, leading to #11216.
-}