Difference between revisions of "Cookbook/Compilers and interpreters"
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(→GHC) |
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| compiling a file, without linking |
| compiling a file, without linking |
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| -c |
| -c |
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| − | |ghc -c Foo.hs --> Foo.hi, Foo.o |
+ | |<haskell>ghc -c Foo.hs --> Foo.hi, Foo.o</haskell> |
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|} |
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Revision as of 08:36, 31 August 2009
GHC
| Problem | Solution | Examples |
|---|---|---|
| compiling a file, without linking | -c | ghc -c Foo.hs --> Foo.hi, Foo.o
|
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
|
Hugs
TODO