Decision Workspace
n-functor vs immutable-chunkmap vs funcmap_derive
Side-by-side comparison of Rust crates
41
n-functor
growingv0.2.1
Faux-derive a `map` function for types with one or more type parameters.
58
immutable-chunkmap
growingv2.1.2
A fast immutable map and set with batch insert and update methods, COW operations, and big O efficient implementations of set and merge operations
56
funcmap_derive
growingv0.1.7
Derivable functorial mappings for Rust
Core Metrics
| n-functor | immutable-chunkmap | funcmap_derive | |
|---|---|---|---|
| Health Score | 41 | 58 | 56 |
| Total Downloads | 4.6K | 3.8M | 8.3K |
| 30d Downloads | 595 | 200.7K | 53 |
| Dependents | 0 | 216 | 8 |
| Releases | 3 | 37 | 8 |
| Last Updated | 287d ago | 199d ago | 14d ago |
| Age | 1y 9m | 8y 3m | 3y 11m |
Health Breakdown
n-functor
Maintenance
7
Quality
15
Community
5
Popularity
4
Documentation
10
immutable-chunkmap
Maintenance
10
Quality
16
Community
12
Popularity
8
Documentation
12
funcmap_derive
Maintenance
16
Quality
14
Community
9
Popularity
5
Documentation
12
Technical Details
| n-functor | immutable-chunkmap | funcmap_derive | |
|---|---|---|---|
| Version | 0.2.1 | 2.1.2 | 0.1.7 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | Apache-2.0 OR MIT | MIT OR Apache-2.0 |
| Dependencies | 3 | 14 | 4 |
| Crate Size | 13KB | 48KB | 26KB |
| Features | 0 | 4 | 0 |
| Yanked % | 0.0% | 10.8% | 0.0% |
| Edition | 2021 | 2018 | 2021 |
| MSRV | — | — | 1.82 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •immutable-chunkmap leads with a health score of 58/100, but none of the options score above 80.
- •immutable-chunkmap is depended on by 216 crates — strongest ecosystem trust.
- •n-functor, funcmap_derive are pre-1.0 — API may change.