Decision Workspace
r4 vs metastruct vs better_comprehension
Side-by-side comparison of Rust crates
42
r4
growingv1.0.1
A compact macro that generates iterators using for comprehensions and natural Rust syntax.
55
metastruct
growingv0.1.4
Abstractions for iterating and mapping over struct fields
51
better_comprehension
stablev3.0.3
collection and iterator comprehensions for Rust
Core Metrics
| r4 | metastruct | better_comprehension | |
|---|---|---|---|
| Health Score | 42 | 55 | 51 |
| Total Downloads | 4.0K | 582.9K | 8.6K |
| 30d Downloads | 0 | 12.6K | 0 |
| Dependents | 0 | 0 | 0 |
| Releases | 2 | 5 | 15 |
| Last Updated | 3071d ago | 180d ago | 457d ago |
| Age | 8y 5m | 3y 7m | 1y 3m |
Health Breakdown
r4
Maintenance
3
Quality
21
Community
3
Popularity
4
Documentation
11
metastruct
Maintenance
11
Quality
17
Community
10
Popularity
7
Documentation
10
better_comprehension
Maintenance
14
Quality
19
Community
3
Popularity
5
Documentation
10
Technical Details
| r4 | metastruct | better_comprehension | |
|---|---|---|---|
| Version | 1.0.1 | 0.1.4 | 3.0.3 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | Apache-2.0 | Apache-2.0 | MIT |
| Dependencies | 0 | 1 | 3 |
| Crate Size | 9KB | 3KB | 18KB |
| Features | 0 | 2 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | — | 2021 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 2 (team) | 1 |
Links
Quick Verdict
- •metastruct leads with a health score of 55/100, but none of the options score above 80.
- •⚠ r4, better_comprehension have not been updated in over a year.
- •metastruct is pre-1.0 — API may change.