Decision Workspace
ecma-syntax-cat vs ecma-parse-cat vs boa_ast
Side-by-side comparison of Rust crates
44
ecma-syntax-cat
experimentalv0.1.0
ECMAScript abstract syntax tree as comp-cat-rs-idiomatic Rust types. ESTree-shaped, ES2024-complete, no panics, no Rc, no interior mutability. Foundation crate for boa-cat and related downstream tooling.
44
ecma-parse-cat
experimentalv0.1.0
ECMAScript parser consuming ecma-lex-cat tokens and producing ecma-syntax-cat Program ASTs. Comprehensive ES2024 surface (classes, modules, destructuring, async/await, optional chaining, templates). Recursive-descent with precedence climbing.
65
boa_ast
growingv0.21.1
Abstract Syntax Tree definition for the Boa JavaScript engine.
Core Metrics
| ecma-syntax-cat | ecma-parse-cat | boa_ast | |
|---|---|---|---|
| Health Score | 44 | 44 | 65 |
| Total Downloads | 32 | 57 | 2.9M |
| 30d Downloads | 0 | 0 | 342.5K |
| Dependents | 6 | 4 | 29 |
| Releases | 1 | 1 | 10 |
| Last Updated | 2d ago | 2d ago | 57d ago |
| Age | 2d | 2d | 2y 10m |
Health Breakdown
ecma-syntax-cat
Maintenance
13
Quality
14
Community
8
Popularity
2
Documentation
7
ecma-parse-cat
Maintenance
13
Quality
14
Community
8
Popularity
2
Documentation
7
boa_ast
Maintenance
16
Quality
14
Community
15
Popularity
8
Documentation
12
Technical Details
| ecma-syntax-cat | ecma-parse-cat | boa_ast | |
|---|---|---|---|
| Version | 0.1.0 | 0.1.0 | 0.21.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | Unlicense OR MIT |
| Dependencies | 1 | 3 | 9 |
| Crate Size | 33KB | 36KB | 110KB |
| Features | 0 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | — | — | 1.88.0 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •boa_ast leads with a health score of 65/100, but none of the options score above 80.