Struct ClassSetUnion

pub struct ClassSetUnion {
    pub span: Span,
    pub items: Vec<ClassSetItem>,
}

A union of items inside a character class set.

Fields

span: Span

The span of the items in this operation. e.g., the a-z0-9 in [^a-z0-9]

items: Vec<ClassSetItem>

The sequence of items that make up this union.

Implementations

impl ClassSetUnion

pub fn push(&mut self, item: ClassSetItem)

Push a new item in this union.

The ending position of this union’s span is updated to the ending position of the span of the item given. If the union is empty, then the starting position of this union is set to the starting position of this item.

In other words, if you only use this method to add items to a union and you set the spans on each item correctly, then you should never need to adjust the span of the union directly.

pub fn into_item(self) -> ClassSetItem

Return this union as a character class set item.

If this union contains zero items, then an empty union is returned. If this concatenation contains exactly 1 item, then the corresponding item is returned. Otherwise, ClassSetItem::Union is returned.

Trait Implementations

impl Clone for ClassSetUnion

fn clone(&self) -> ClassSetUnion

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ClassSetUnion

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

Formats the value using the given formatter.

impl PartialEq for ClassSetUnion

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ClassSetUnion

impl StructuralPartialEq for ClassSetUnion