           SPELL=haskell-strict
         VERSION=0.5.1
          SOURCE="strict-${VERSION}.tar.gz"
   SOURCE_URL[0]=https://hackage.haskell.org/package/strict-${VERSION}/${SOURCE}
     SOURCE_HASH=sha512:059e94e8d21ef66b852515ee80daebc32e9de28af786f8ec65badb584ff67d59d603a699980ac84d46ef5fe3ceb048d6e968881ed9d82b5cb0efdb8833a64cc1
         SOURCE2="strict-${VERSION}-rev1.cabal"
  SOURCE2_URL[0]=https://hackage.haskell.org/package/strict-${VERSION}/revision/1.cabal
    SOURCE2_HASH=sha512:64caf51b164330d2d9b3197dec7c871a55b341c9e08f70c79ebaeb92e4babb5db9f68c9025ff8c350413887fdf9843bbbf42a7c490c8af825b00bc9f4a18a016
SOURCE_DIRECTORY="${BUILD_DIRECTORY}/strict-${VERSION}"
        WEB_SITE="https://github.com/haskell-strict/strict"
      LICENSE[0]=BSD3
         ENTERED=20260818
           SHORT="Strict data types and String IO."
cat << EOF
This package provides strict versions of some standard Haskell data types
(pairs, Maybe and Either). It also contains strict IO operations.

It is common knowledge that lazy datastructures can lead to space-leaks. This
problem is particularly prominent, when using lazy datastructures to store the
state of a long-running application in memory. One common solution to this
problem is to use @seq@ and its variants in every piece of code that updates
your state. However a much easier solution is to use fully strict types to
store such state values. By \\"fully strict types\\" we mean types for whose
values it holds that, if they are in weak-head normal form, then they are also
in normal form. Intuitively, this means that values of fully strict types
cannot contain unevaluated thunks.

To define a fully strict datatype, one typically uses the following recipe.

1. Make all fields of every constructor strict; i.e., add a bang to all
fields.

2. Use only strict types for the fields of the constructors.

The second requirement is problematic as it rules out the use of the standard
Haskell 'Maybe', 'Either', and pair types. This library solves this problem by
providing strict variants of these types and their corresponding standard
support functions and type-class instances.

Note that this library does currently not provide fully strict lists. They can
be added if they are really required. However, in many cases one probably
wants to use unboxed or strict boxed vectors from the 'vector' library
(<http://hackage.haskell.org/package/vector>) instead of strict lists.
Moreover, instead of @String@s one probably wants to use strict @Text@ values
from the @text@ library (<http://hackage.haskell.org/package/text>).

This library comes with batteries included; i.e., mirror functions and
instances of the lazy versions in @base@. It also includes instances for
type-classes from the @deepseq@, @binary@, and @hashable@ packages.
EOF
