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caiorss/debugging-in-haskells-ghci.md

Created October 26, 2016 21:54
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Debugging in Haskell's GHCi
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debugging-in-haskells-ghci.md

Debugging in Haskell's GHCi

  • Enter GHCi (via Stack)
stack ghci
  • Enable functions to break on exceptions
:set -fbreak-on-exception
  • Reload GHCi
:reload -- Also :r
  • Call and trace your function
:trace myFunction x y z
  • Use :history and :back to move through the "call stack"
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