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Cookbook/Compilers and interpreters

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! Examples
! Examples
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|-
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| checking definitions
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| checking a definition
| :i
| :i
|<haskell>
|<haskell>
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</haskell>
</haskell>
|-
|-
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| checking types
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| checking a type
| :t
| :t
|<haskell>
|<haskell>

Revision as of 08:35, 31 August 2009

1 GHC

Problem Solution Examples
compile a file, but don't link -c ghc -c Foo.hs

2 GHCi

Problem Solution Examples
checking a definition  :i 
Prelude> :i Monad
class Monad m where
  (>>=) :: m a -> (a -> m b) -> m b
  (>>) :: m a -> m b -> m b
  return :: a -> m a
  fail :: String -> m a
        -- Defined in GHC.Base
instance Monad Maybe -- Defined in Data.Maybe
instance Monad IO -- Defined in GHC.IOBase
instance Monad ((->) r) -- Defined in Control.Monad.Instances
instance Monad [] -- Defined in GHC.Base
checking a type  :t 
Prelude> :t "Hello"
"Hello" :: [Char]
 
Prelude> :t length
length :: [a] -> Int

3 Hugs

TODO

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