syn

library2.0.114rscratesunverified

Parser for Rust source code, used in procedural macros.

# Cargo.toml
[dependencies]
syn = "2.0.114"

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INSTALL

IMPORT

SIG · SYN

syn

otherrustv2.0.114

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

parse_macro_input

✓ use syn::parse_macro_input;

Parse a TokenStream into a Rust syntax tree node.

use syn::parse_macro_input; // Typically used inside a proc-macro function: // #[proc_macro] // pub fn my_macro(input: TokenStream) -> TokenStream { // let parsed = parse_macro_input!(input as syn::ItemFn); // // ... // }

Debug

Known issues

breakingSyn 2.0 introduced breaking changes in API and feature flags.

fix

Check migration guide from syn 1.x to 2.x; enable features like "full" or "derive" as needed.

affects: >=2.0.0

Upgrade

Version history

2.0.114latest on crates.io

Audit

Dependencies

No dependency data recorded yet.

Agent activity

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Resources

githubhttps://github.com/dtolnay/syn ↗

homepagehttps://github.com/dtolnay/syn ↗

docshttps://docs.rs/syn/ ↗