Struct syntax::ext::tt::macro_parser::MatcherTtFrame

struct MatcherTtFrame<'a> {
    elts: TokenTreeOrTokenTreeSlice<'a>,
    idx: usize,
}

🔬 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?

An unzipping of TokenTrees... see the stack field of MatcherPos.

This is used by inner_parse_loop to keep track of delimited submatchers that we have descended into.

Fields

elts: TokenTreeOrTokenTreeSlice<'a>

🔬 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?

The "parent" matcher that we are descending into.

idx: usize

🔬 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?

The position of the "dot" in elts at the time we descended.

Trait Implementations

impl<'a> Clone for MatcherTtFrame<'a>

fn clone(&self) -> MatcherTtFrame<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.