20001377431
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Ran 07 Dec 2025 08:17AM UTC

Jobs 1

Files 201

Run time 1min

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Committed 07 Dec 2025 08:15AM UTC coverage: 58.509%. Remained the same

Build # 20001377431

Build Type

push

github

Committed by

fasterthanlime

Commit Message

feat(facet-json): add JIT-compiled JSON deserialization

Add a new `jit` feature that provides JIT-compiled JSON deserialization
using Cranelift. The JIT generates native code specialized for each
type's memory layout, providing significant performance improvements
for struct and vector-heavy workloads.

Key features:
- Cranelift-based JIT compilation with function caching
- Prefix trie dispatch for O(n) field matching
- Support for primitives, strings, nested structs, Vec<T>
- Fallback to interpreter for unsupported types
- 46 comprehensive tests verifying correctness

Usage:
```rust
use facet_json::jit;

#[derive(Facet)]
struct Point { x: f64, y: f64 }

let point: Point = jit::from_str(r#"{"x": 1.0, "y": 2.0}"#).unwrap();
```

Run Details

24550 of 41959 relevant lines covered (58.51%)

542.34 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	20001377431.1	07 Dec 2025 08:17AM UTC	201	58.51	GitHub Action Run

facet-rs / facet / 20001377431
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