first-class-patterns: First class patterns and pattern matching, using type families
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This package implements a library of first class patterns. The initial basis for this library was Morten Rhiger's "Type-safe pattern combinators"; the patterns can be used in an almost identical way to those of Morten Rhiger. In a series of blog posts at http://reinerp.wordpress.com/category/pattern-combinators/ the types of patterns were made more revealing using type families, and a simpler implementation was used which avoids some book-keeping.
The library reimplements most of Haskell's built-in pattern matching facilities, plus some more. The pattern matches of this library are lightweight: when GHC's optimisation is turned on, all overhead should be optimised away, leaving a standard Haskell pattern match.
If you're just reading the documentation for this library for the first time, start with Data.Pattern.
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Properties
| Versions | 0.1.0, 0.2.0, 0.3.0, 0.3.1, 0.3.2, 0.3.2.1, 0.3.2.2, 0.3.2.3, 0.3.2.4, 0.3.2.5, 0.3.2.5 |
|---|---|
| Change log | CHANGELOG.md |
| Dependencies | base (>=4.10.1.0 && <5), transformers (>=0.1.0 && <0.6) [details] |
| License | BSD-3-Clause |
| Author | Reiner Pope, Brent Yorgey |
| Maintainer | Kowainik <xrom.xkov@gmail.com> |
| Category | Data, Pattern |
| Home page | https://github.com/kowainik/first-class-patterns |
| Bug tracker | https://github.com/kowainik/first-class-patterns/issues |
| Source repo | head: git clone git://github.com/kowainik/first-class-patterns.git |
| Uploaded | by shersh at 2019-10-01T18:22:10Z |
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[back to package description]first-class-patterns
Implements patterns in Haskell as first class objects.