Decision Workspace
proc_macro_tools vs former_types vs former
Side-by-side comparison of Rust crates
50
proc_macro_tools
growingv0.1.17
Tools for writing procedural macroses.
68
former_types
stablev2.35.0
A flexible implementation of the Builder pattern supporting nested builders and collection-specific subformers. Its compile-time structures and traits that are not generated but reused.
67
former
stablev2.42.0
A flexible implementation of the Builder pattern supporting nested builders and collection-specific subformers. Simplify the construction of complex objects.
Core Metrics
| proc_macro_tools | former_types | former | |
|---|---|---|---|
| Health Score | 50 | 68 | 67 |
| Total Downloads | 139.3K | 45.3K | 207.3K |
| 30d Downloads | 859 | 1.1K | 1.8K |
| Dependents | 27 | 134 | 222 |
| Releases | 17 | 35 | 70 |
| Last Updated | 1349d ago | 61d ago | 61d ago |
| Age | 4y 2m | 1y 10m | 4y 4m |
Health Breakdown
proc_macro_tools
Maintenance
6
Quality
15
Community
10
Popularity
6
Documentation
13
former_types
Maintenance
15
Quality
22
Community
12
Popularity
6
Documentation
13
former
Maintenance
15
Quality
21
Community
12
Popularity
6
Documentation
13
Technical Details
| proc_macro_tools | former_types | former | |
|---|---|---|---|
| Version | 0.1.17 | 2.35.0 | 2.42.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT | MIT | MIT |
| Dependencies | 6 | 3 | 6 |
| Crate Size | 149KB | 39KB | 291KB |
| Features | 4 | 6 | 10 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •former_types leads with a health score of 68/100, but none of the options score above 80.
- •former has the most downloads (207.3K), suggesting wider adoption.
- •former is depended on by 222 crates — strongest ecosystem trust.
- •⚠ proc_macro_tools has not been updated in over a year.
- •proc_macro_tools is pre-1.0 — API may change.