lazyio: Run IO actions lazily while respecting their order

Run IO actions lazily while respecting their order. Running a value of the LazyIO monad in the IO monad is like starting a thread which is however driven by its output. That is, the LazyIO action is only executed as far as necessary in order to provide the required data.

The package may help you to avoid stack overflows in mapM. Say you have

mapM f xs

where xs is a long list. When run, you may encounter a stack overflow. To prevent it, write instead:

import qualified System.IO.Lazy as LazyIO

LazyIO.run $ mapM (LazyIO.interleave . f) xs

The stack overflow is gone.

Modules

[Index]

Flags

Automatic Flags

Name	Description	Default
splitbase	Choose the new smaller, split-up base package.	Enabled
buildtests	Build test executables	Disabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

• lazyio-0.1.0.4.tar.gz [browse] (Cabal source package)
• Package description (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

Package maintainers

• HenningThielemann

For package maintainers and hackage trustees

• edit package information

Candidates

• 0.0.3.3, 0.1, 0.1.0.3