Enum proc_macro::Delimiter

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

[−] Expand description

Describes how a sequence of token trees is delimited.

Variants

Parenthesis

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( ... )

Brace

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{ ... }

Bracket

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[ ... ]

None

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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 PartialEq<Delimiter> for Delimiter[+]

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

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

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#[must_use] fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl Copy for Delimiter

impl Clone for Delimiter[+]

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fn clone(&self) -> Delimiter[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Eq for Delimiter

impl Debug for Delimiter[+]

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fn fmt(&self, f: &mut Formatter) -> Result[−]

Formats the value using the given formatter.