[Git][ghc/ghc][wip/exception-context] compiler: Don't show ExceptionContext of GhcExceptions

[Ben Gamari (@bgamari)]

Ben Gamari pushed to branch wip/exception-context at Glasgow Haskell Compiler / GHC


Commits:
5dcc5481 by Ben Gamari at 2024-03-04T21:52:13-05:00
compiler: Don't show ExceptionContext of GhcExceptions

Most GhcExceptions are user-facing errors and therefore the
ExceptionContext has little value. Ideally we would enable
it in the DEBUG compiler but I am leaving this for future work.

- - - - -


1 changed file:

- compiler/GHC/Utils/Panic.hs


Changes:

=====================================
compiler/GHC/Utils/Panic.hs
=====================================
@@ -127,6 +127,10 @@ instance Exception GhcException where
           PlainProgramError str -> ProgramError str
     | otherwise = Nothing
 
+  -- Explicitly omit ExceptionContext since we generally don't
+  -- want backtraces and other context in GHC's user errors.
+  displayException = ghcGhcExceptionUnsafe
+
 instance Show GhcException where
   showsPrec _ e = showGhcExceptionUnsafe e
 



View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/5dcc5481a48f55d95ed12114e8eb31b405ec8039

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/5dcc5481a48f55d95ed12114e8eb31b405ec8039
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