syn 3.0.9

Source: https://github.com/dtolnay/syn
Tag scanned: 3.0.9
Compared with: 3.0.8 (0 signals introduced since)
Files: 142 scanned, 19 skipped (binary, oversized, or unrecognised)
Signals: 0 critical · 0 warn · 5 info
Scan time: 0.2 s
LLM review: LLM review by claude-haiku-5-5 (Anthropic): nothing at warn or critical to review.
Disclude version: 4.0.0
Scanned (UTC): 2026-10-14 20:10

Signals

Ordered by severity, then signals introduced in this release. Hidden characters are shown as ⟨U+…⟩.

info proc-macro-presence README.md:93:1

[embedded rust] proc-macro attribute `#[proc_macro_derive]` present (ast pass, confidence 0.95)


#[proc_macro_derive(MyMacro)]
pub fn my_macro(input: TokenStream) -> TokenStream {
    // Parse the input tokens into a syntax tree

info proc-macro-presence dev/parse.rs:5:1

proc-macro attribute `#[proc_macro]` present (ast pass, confidence 0.95)


#[proc_macro]
pub fn r#mod(input: TokenStream) -> TokenStream {
    let compile_error = syn::parse::<File>(input)

info proc-macro-presence examples/heapsize/heapsize_derive/src/lib.rs:8:1

proc-macro attribute `#[proc_macro_derive]` present (ast pass, confidence 0.95)


#[proc_macro_derive(HeapSize)]
pub fn derive_heap_size(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    // Parse the input tokens into a syntax tree.

info proc-macro-presence examples/lazy-static/lazy-static/src/lib.rs:48:1

proc-macro attribute `#[proc_macro]` present (ast pass, confidence 0.95)
```
#[proc_macro]
pub fn lazy_static(input: TokenStream) -> TokenStream {
    let LazyStatic {
```

info proc-macro-presence examples/trace-var/trace-var/src/lib.rs:177:1

proc-macro attribute `#[proc_macro_attribute]` present (ast pass, confidence 0.95)

/// ```
#[proc_macro_attribute]
pub fn trace_var(args: TokenStream, input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as ItemFn);

Reproduce This Scan

Run disclude locally to verify. Add --format sarif for SARIF output. Add --llm (with an API key in the environment) to include the LLM review.

cargo install disclude --version 4.0.0
git clone https://github.com/dtolnay/syn syn && cd syn
git checkout 3.0.9
disclude scan --severity info --diff 3.0.8 .