Hi all, I'm curious as to how one would go about debugging the following program: hello :: String hello = "Hello" world :: String world = "World" number :: Int number = 1 helloWorld :: String helloWorld = hello ++ " " ++ world -- This fails! bad :: String bad = hello ++ number Predictably once I load this program into ghci I get the following error: [1 of 1] Compiling Main ( TestCode.hs, interpreted ) TestCode.hs:14:15: Couldn't match expected type `[Char]' against inferred type `Int' In the second argument of `(++)', namely `number' In the expression: hello ++ number In the definition of `bad': bad = hello ++ number Failed, modules loaded: none. At this point what I want to do is to query the output type of the different functions like so:
:t hello but GHCI won't let me because the program hasn't been loaded.
I would then have to comment out 'bad', reload the program and query output types to my hearts content. This is fine for a small program, but when I have functions are downriver from 'bad', it gets extremely cumbersome. Is there a way to load a file such that functions that compile stay loaded in the interpreter even if something else fails? Thanks ... -deech