Function syntax::ext::tt::macro_parser::create_matches [−][src]
fn create_matches(len: usize) -> Vec<Rc<Vec<NamedMatch>>>
🔬 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?
Initialize len
empty shared Vec
s to be used to store matches of metavars.