Decision Workspace
py-ast vs vpratt-macros vs axon-frontend
Side-by-side comparison of Rust crates
45
py-ast
growingv0.0.4
Pin1Yin1 ast definition and parse for pycc-rs
56
vpratt-macros
experimentalv0.5.2
Procedural macros for the vpratt pratt parsing framework.
55
axon-frontend
experimentalv1.2.0
AXON compiler frontend — lexer, parser, AST, epistemic type system, type checker, IR generator. Zero runtime dependencies. v1.2.0 adds PRIMITIVE_REGISTRY — closed catalogue of every named language construct (45 entries) with PrimitiveInfo / DocStatus / CoverageSummary types + find / by_category / with_status / coverage_summary helpers. Single source of truth for downstream tooling (axon-emcp coverage gate, future LSP completions, docs-site generators). v1.1.0 introduced session-types + multiparty projection. v1.0.x earlier cycles — see https://github.com/Bemarking/axon-lang.
Core Metrics
| py-ast | vpratt-macros | axon-frontend | |
|---|---|---|---|
| Health Score | 45 | 56 | 55 |
| Total Downloads | 4.7K | 199 | 836 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 4 | 11 | 76 |
| Releases | 4 | 12 | 29 |
| Last Updated | 586d ago | today | 2d ago |
| Age | 1y 11m | 5d | 1m |
Health Breakdown
py-ast
Maintenance
4
Quality
15
Community
12
Popularity
4
Documentation
10
vpratt-macros
Maintenance
19
Quality
15
Community
9
Popularity
3
Documentation
10
axon-frontend
Maintenance
14
Quality
15
Community
11
Popularity
3
Documentation
12
Technical Details
| py-ast | vpratt-macros | axon-frontend | |
|---|---|---|---|
| Version | 0.0.4 | 0.5.2 | 1.2.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | GPL-3.0 | MIT | MIT |
| Dependencies | 7 | 3 | 2 |
| Crate Size | 17KB | 9KB | 306KB |
| Features | 1 | 1 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | — | — | 1.95 |
| Owners | 2 (team) | 1 | 1 |
Links
Quick Verdict
- •vpratt-macros leads with a health score of 56/100, but none of the options score above 80.
- •py-ast has the most downloads (4.7K), suggesting wider adoption.
- •⚠ py-ast has not been updated in over a year.
- •py-ast, vpratt-macros are pre-1.0 — API may change.