Enum proc_macro2::Delimiter

pub enum Delimiter {
    Parenthesis,
    Brace,
    Bracket,
    None,
}

Describes how a sequence of token trees is delimited.

Variants

Parenthesis

( ... )

Brace

{ ... }

Bracket

[ ... ]

None

Ø ... Ø

An implicit delimiter, that may, for example, appear around tokens coming from a “macro variable” $var. It is important to preserve operator priorities in cases like $var * 3 where $var is 1 + 2. Implicit delimiters may not survive roundtrip of a token stream through a string.

Trait Implementations

impl Clone for Delimiter

fn clone(&self) -> Delimiter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Delimiter

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

Formats the value using the given formatter.

impl PartialEq<Delimiter> for Delimiter

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for Delimiter

impl Eq for Delimiter

impl StructuralEq for Delimiter

impl StructuralPartialEq for Delimiter