Re: [Haskell-cafe] why does Data.Text.Lazy.IO.readFile return the internal type Data.Text.Lazy.Internal.Text, when Data.Text.IO.readFile returns plain IO Data.Text.Text?

Am Samstag 01 Mai 2010 00:58:23 schrieb Felipe Lessa:

It depends on what is on your scope:

Prelude> :t Data.Text.Lazy.IO.readFile Data.Text.Lazy.IO.readFile

:: FilePath -> IO text-0.7.1.0:Data.Text.Lazy.Internal.Text

Prelude> :m Data.Text.Lazy Prelude Data.Text.Lazy> :t Data.Text.Lazy.IO.readFile Data.Text.Lazy.IO.readFile :: FilePath -> IO Text

HTH,

Indirectly. From the original post:

...

*Main> :t Data.Text.IO.readFile Data.Text.IO.readFile :: FilePath -> IO T.Text

So the scope is the top level of the Main module. I didn't immediately figure out why it was displayed as T.Text. I couldn't reproduce that with a couple of different imports, but I only tried "import [qualified] Data.Text.IO as T". When I saw

Prelude> :m Data.Text.Lazy

it became clear, he had "import qualified Data.Text as T" in Main, thanks :)

-- Felipe.