Function syntax::parse::token::is_unused_keyword[][src]

pub fn is_unused_keyword(id: Ident) -> bool
🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Returns true if the token is a keyword reserved for possible future use.