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2019-07-26
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speced.def provides defn, defprotocol, fn macros with identical syntax to that of clojure.core.
The difference lies in that you can pass clojure.spec specs, expressed as metadata. That metadata compiles to :pre/`:post` conditions.
The key benefits are:
- 1:1 mapping to clojure.core's syntax, enabling concision/DRYness, a flat learning curve, and compatibility with every IDE
- specs can be inferred out of type hints, and vice versa
- you can pass metadata at arbitrary levels of destructuring, so you can spec more things
- jvm and clojurescript compatibility
- rich error reporting, even richer than that offered by stock Expound
It's been battled-tested non-stop at Nedap since February, in an increasing number of projects. Hope you find it enjoyable!
https://github.com/nedap/speced.def
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12@U45T93RA6 Thanks for sharing. I was wondering what does it bring to the table when compared with the following libraries: - https://github.com/jeaye/orchestra - https://github.com/gnl/ghostwheel - https://github.com/Provisdom/defn-spec - https://github.com/danielcompton/defn-spec Would you mind clarifying what's the intended purpose of this one please? 🙂
ty for the interest!
I know those well and the difference is expressed in the key benefits summarized above.
The alternatives lack at least one of: completeness (defprotocol?), reach (cljs?), efficiency (type inference?), among other stuff expressed in the readme.
Have to say, Ghostwheel has some interesting ideas, but at the same time I feel it bloats defn with features that really don't belong there, and could as well be placed somewhere else and composed later.
speced.def is simple: metadata in, a prepost map out.
I see
clojure iapetos prometheus client. a project of clj-commons, merged on upstream doc of prometheus 🚀 https://github.com/prometheus/docs/pull/1405
12[ANN] Cognitect Labs' aws-api 0.8.352 https://groups.google.com/forum/#!topic/clojure/-PfzmhtiFrY
20InsideClojure Journal 2019.21 - http://ask.clojure.org, tools.deps http://insideclojure.org/2019/07/26/journal/
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