On Apr 25, 2008, at 9:54 AM, Jennifer Miller wrote:
So, I have a circular dependency in my modules that I don't know how to resolve in Haskell. I went looking for the equivalent of #include which is how I would have solved this in C++. I'm sure there is a simple answer to this and I'm hoping this group can point me in the right direction.
GHC supports CPP, so you could take the same approach in Haskell. # cat Main.hs data Foo = Foo { x :: Int, y :: Int } deriving Show foo = Foo { x = 2, #include "y.hs" } # cat y.hs y = (x foo) + 2 # ghci -cpp Main.hs GHCi, version 6.8.2: http://www.haskell.org/ghc/ :? for help Loading package base ... linking ... done. [1 of 1] Compiling Main ( Main.hs, interpreted ) Ok, modules loaded: Main. *Main> foo Foo {x = 2, y = 4} *Main> Aaron