generic-deepseq: Generic deep evaluation of data structures
This package provides a deepseq function analogous to seq, except that it
traverses the entire data structure, evaluating it fully, and not just up to
head normal form.
Using lists as an example:
> [1,2,undefined] `seq` 3 3
Whereas with deepseq:
> [1,2,undefined] `deepseq` 3 *** Exception: Prelude.undefined
Unlike the deepseq package, this implementation is based on the
GHC.Generics framework as found in GHC >= 7.2, so that it can generate
instances automatically for any datatype that has a Generic instance,
without further code.
data MyType = MyType String Int (Maybe Double) deriving Generic instance DeepSeq MyType
Changes in version 2.0.0.0:
Vastly improved performance. As a consequence of these changes, the member function of the DeepSeq class is now
rnf, instead ofdeepseq.New instances for functions, Ratio and Complex types.
Changes in version 2.0.1.0:
Fix the U1 and V1 instances.
Changes in version 2.0.1.1:
No functional changes, updated to correct the URLs of the repository and the issue tracker.
| Versions [faq] | 1.0.0.0, 2.0.0.0, 2.0.1.0, 2.0.1.1 |
|---|---|
| Dependencies | base (>=4.4 && <5), ghc-prim (>=0.2) [details] |
| License | BSD-3-Clause |
| Copyright | 2012, Maxime Henrion |
| Author | Maxime Henrion |
| Maintainer | Maxime Henrion <mhenrion@gmail.com> |
| Revised | Revision 1 made by AdamBergmark at Sat May 9 12:17:48 UTC 2015 |
| Category | Control, Generics |
| Bug tracker | http://bitbucket.org/mux/generic-deepseq/issues/ |
| Source repo | head: hg clone http://bitbucket.org/mux/generic-deepseq/ |
| Uploaded | by MaximeHenrion at Tue Feb 28 20:53:40 UTC 2012 |
| Distributions | NixOS:2.0.1.1 |
| Downloads | 2285 total (46 in the last 30 days) |
| Rating | (no votes yet) [estimated by rule of succession] |
| Your Rating | |
| Status | Docs uploaded by user Build status unknown [no reports yet] |
Downloads
- generic-deepseq-2.0.1.1.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'.