Struct MouthRuntime 

pub struct MouthRuntime {
    pub autoclose: bool,
    pub mouth: Mouth,
    pub boundary: BalancedBoundary,
    pub pushback: Vec<Token>,
}

Fields

autoclose: bool

mouth: Mouth

boundary: BalancedBoundary

See BalancedBoundary. Only consulted when autoclose is set and the mouth is not a file.

pushback: Vec<Token>

Pushback LIFO stack: the “next to read” token is at pushback.last(). Invariant: reading pops from the back; unread_one pushes to the back; unread_vec iterates its input in reverse and pushes each — so the first element of an unread Vec ends up on top (= next to read). See flush_mouth for the rare FIFO-prepend semantics (\endinput).

Previously a VecDeque<Token> — switched to a plain Vec because the hot-path is pure LIFO and VecDeque’s push_front/pop_front machinery (head-pointer + wrap arithmetic) showed up at ~3.3% of total Ir in callgrind on siunitx-heavy fixtures.

Trait Implementations

impl Debug for MouthRuntime

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for MouthRuntime

fn eq(&self, other: &MouthRuntime) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MouthRuntime