Decision Workspace
chain_from_last vs empty-fallback-chain vs gaps
Side-by-side comparison of Rust crates
47
chain_from_last
growingv0.2.0
Iterator adaptor for chaining from last item.
49
empty-fallback-chain
growingv2.0.0
Iterator adaptor like chain, but conditional on empty first iterator
42
gaps
growingv0.3.1
Functionality for working with gaps/holes in ordered sequences of values.
Core Metrics
| chain_from_last | empty-fallback-chain | gaps | |
|---|---|---|---|
| Health Score | 47 | 49 | 42 |
| Total Downloads | 1.8K | 5.1K | 18.6K |
| 30d Downloads | 6 | 56 | 40 |
| Dependents | 0 | 1 | 12 |
| Releases | 2 | 5 | 9 |
| Last Updated | 497d ago | 433d ago | 1517d ago |
| Age | 1y 4m | 1y 8m | 5y 8m |
Health Breakdown
chain_from_last
Maintenance
6
Quality
16
Community
6
Popularity
4
Documentation
15
empty-fallback-chain
Maintenance
5
Quality
20
Community
7
Popularity
4
Documentation
13
gaps
Maintenance
4
Quality
15
Community
9
Popularity
5
Documentation
9
Technical Details
| chain_from_last | empty-fallback-chain | gaps | |
|---|---|---|---|
| Version | 0.2.0 | 2.0.0 | 0.3.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | Apache-2.0 | MPL-2.0 | GPL-3.0-or-later |
| Dependencies | 0 | 0 | 1 |
| Crate Size | 6KB | 16KB | 18KB |
| Features | 0 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2018 |
| MSRV | 1.63.0 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •empty-fallback-chain leads with a health score of 49/100, but none of the options score above 80.
- •gaps has the most downloads (18.6K), suggesting wider adoption.
- •⚠ chain_from_last, empty-fallback-chain, gaps have not been updated in over a year.
- •chain_from_last, gaps are pre-1.0 — API may change.