Enum ClassSetItem

pub enum ClassSetItem {
    Empty(Span),
    Literal(Literal),
    Range(ClassSetRange),
    Ascii(ClassAscii),
    Unicode(ClassUnicode),
    Perl(ClassPerl),
    Bracketed(Box<ClassBracketed>),
    Union(ClassSetUnion),
}

A single component of a character class set.

Variants

Empty(Span)

An empty item.

Note that a bracketed character class cannot contain a single empty item. Empty items can appear when using one of the binary operators. For example, [&&] is the intersection of two empty classes.

Literal(Literal)

A single literal.

Range(ClassSetRange)

A range between two literals.

Ascii(ClassAscii)

An ASCII character class, e.g., [:alnum:] or [:punct:].

Unicode(ClassUnicode)

A Unicode character class, e.g., \pL or \p{Greek}.

Perl(ClassPerl)

A perl character class, e.g., \d or \W.

Bracketed(Box<ClassBracketed>)

A bracketed character class set, which may contain zero or more character ranges and/or zero or more nested classes. e.g., [a-zA-Z\pL].

Union(ClassSetUnion)

A union of items.

Implementations

impl ClassSetItem

pub fn span(&self) -> &Span

Return the span of this character class set item.

Trait Implementations

impl Clone for ClassSetItem

fn clone(&self) -> ClassSetItem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ClassSetItem

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

Formats the value using the given formatter.

impl PartialEq for ClassSetItem

fn eq(&self, other: &ClassSetItem) -> 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 ClassSetItem

impl StructuralPartialEq for ClassSetItem

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 160 bytes

Size for each variant:

• Empty: 48 bytes
• Literal: 56 bytes
• Range: 160 bytes
• Ascii: 56 bytes
• Unicode: 112 bytes
• Perl: 56 bytes
• Bracketed: 8 bytes
• Union: 72 bytes