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GHC 9.10.3 · lts/ghc-9.10.x · c74966e · 2026-09-27

Modulerebase-1.21.2Haskell2010

Rebase.GHC.Err

  • 4 values
  • Packagerebase-1.21.2
  • Exports4
  • LanguageHaskell2010
  • LicenceMIT
  • SourceErr.hs
valueabsentErr :: a
#

Used for compiler-generated error message; encoding saves bytes of string junk.

valueundefined :: HasCallStack => a
#

A special case of error. It is expected that compilers will recognize this and insert error messages which are more appropriate to the context in which undefined appears.