Struct Expl3Unit 

pub struct Expl3Unit {
    pub last: usize,
    pub branches: Vec<TextRange>,
}

The resolved shape of one expl3 call unit — what [consume_unit]’s slot scan learns, kept rather than discarded.

segment_expl_statements needs only last; the formatter’s conditional layout needs branches, because where greedy attachment put a branch group is an accident of the surrounding tokens and must not be a layout input. In \tl_if_empty:nTF {#1} {T} {F} the branches hang off the head command, but a single-token slot breaks attachment and hands them to a sibling (\seq_if_in:NnTF \l_seq {item} {T} {F} peels all three off \l_seq) or to the stream itself (\int_compare:nNnTF {a} = {1} {T} {F}, where the relation is a WORD). The scan resolves all three the same way, so the branch ranges are the one handle that works for every shape.

Fields

last: usize

Last sibling index the unit spans (the head itself for a zero-arity or entirely head-internal unit).

branches: Vec<TextRange>

The T/F branch groups, in argspec order. Empty for a non-conditional head, and also for a unit a blank line cut short before every branch slot was filled.

Trait Implementations

impl Clone for Expl3Unit

fn clone(&self) -> Expl3Unit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expl3Unit

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

Formats the value using the given formatter.

impl Eq for Expl3Unit

impl PartialEq for Expl3Unit

fn eq(&self, other: &Expl3Unit) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Expl3Unit