refined-containers: Type-checked proof that a key exists in a container and can be safely indexed.
This package defines ways to prove that a key exists in an associative
container such as a Map
, IntMap
, or HashMap
; so that the key can be
used to index into the map without a Maybe
or manually handling the
"impossible" case with error
or other partial functions.
To do this, the containers are tagged with a type parameter that identifies their set of keys, so that if you have another container with the same parameter, you know it has the same keys.
There is also a type of keys that have been proven to exist in such containers -- a refinement type. They are also tagged with a type parameter. If the type parameter of the key matches that of the container, indexing is guaranteed to proceed without failure.
Downloads
- refined-containers-0.1.0.2.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
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Versions [RSS] | 0.1.0.0, 0.1.0.1, 0.1.0.2 |
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Dependencies | adjunctions (>=4.4 && <4.5), base (>=4.12 && <4.21), constraints (>=0.11 && <0.15), containers (>=0.5.7 && <0.8), deepseq (>=1.4 && <1.6), distributive (>=0.5.3 && <0.7), hashable (>=1.2.7 && <1.6), indexed-traversable (>=0.1 && <0.2), mtl (>=2.2.2 && <2.4), refined (>=0.5 && <0.9), reflection (>=2 && <2.2), unordered-containers (>=0.2.11 && <0.3) [details] |
Tested with | ghc ==9.10.1, ghc ==9.8.2, ghc ==9.6.6, ghc ==9.4.8, ghc ==9.2.8, ghc ==9.0.2, ghc ==8.10.7, ghc ==8.6.5 |
License | MIT |
Author | mniip@typeable.io |
Maintainer | mniip@typeable.io |
Category | Data |
Source repo | head: git clone https://github.com/typeable/refined-containers/ |
Uploaded | by mniip at 2024-11-18T04:40:00Z |
Distributions | NixOS:0.1.0.1 |
Downloads | 136 total (3 in the last 30 days) |
Rating | (no votes yet) [estimated by Bayesian average] |
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Status | Docs available [build log] Last success reported on 2024-11-18 [all 1 reports] |