defn-spec
Add function args and return Spec checking via assertions (by Provisdom)
truss
Assertions micro-library for Clojure/Script (by taoensso)
| defn-spec | truss | |
|---|---|---|
| 1 | 4 | |
| 53 | 296 | |
| - | 0.0% | |
| 0.0 | 5.9 | |
| 7 months ago | 8 days ago | |
| Clojure | Clojure | |
| Eclipse Public License 1.0 | Eclipse Public License 1.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
defn-spec
Posts with mentions or reviews of defn-spec.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-01-20.
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Python dataclass equivalent
if all you care about is information / documentation, and maybe validation, then spec or malli are fine. using spec during runtime to simulate a type system is a poor choice in most cases, because you are doing runtime type checking (something akin to dependent types or even esoteric contracts that are hard/impossible to express statically). There are some libs that help bolt a typed facade (using spec) onto the familiar defn / fn, https://github.com/gnl/ghostwheel https://github.com/Provisdom/defn-spec .
truss
Posts with mentions or reviews of truss.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-25.
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Java 21: What’s New?
When type checking is needed, I find the Truss library* does the trick quite well.
As for the syntax, there is very little, which can make it a harder lift but once you have the hang of it you won't deal with the issues identified in the parent comment.
* https://github.com/taoensso/truss
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Tired by the dynamicism
I use truss extensively throughout my code to prevent those types of errors.
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Python dataclass equivalent
I haven't tried it myself. I generally just use truss for runtime constraint checking. I use a modified version that integrates scope-capture. And malli validation for more complex cases, but I try to limit that. For me it is better to validate individual attributes as needed, vs validating an entire "type"/collection of attributes. So each function only cares about the attributes that it needs, and validates only as needed.
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Love Clojure, challenged by discoverability
Use assertions for all data requirements inside functions - I use a modified version of https://github.com/ptaoussanis/truss to ensure that I never get NullReference exceptions, and this also helps make functions more self-documenting. Also use this to assert return data.