Struct proc_macro::Punct
1.29.0 · source · pub struct Punct(_);Expand description
A Punct is a single punctuation character such as +, - or #.
Multi-character operators like += are represented as two instances of Punct with different
forms of Spacing returned.
Implementations§
source§impl Punct
impl Punct
sourcepub fn new(ch: char, spacing: Spacing) -> Punct
pub fn new(ch: char, spacing: Spacing) -> Punct
Creates a new Punct from the given character and spacing.
The ch argument must be a valid punctuation character permitted by the language,
otherwise the function will panic.
The returned Punct will have the default span of Span::call_site()
which can be further configured with the set_span method below.
sourcepub fn spacing(&self) -> Spacing
pub fn spacing(&self) -> Spacing
Returns the spacing of this punctuation character, indicating whether it’s immediately
followed by another Punct in the token stream, so they can potentially be combined into
a multi-character operator (Joint), or it’s followed by some other token or whitespace
(Alone) so the operator has certainly ended.
Trait Implementations§
source§impl Display for Punct
impl Display for Punct
Prints the punctuation character as a string that should be losslessly convertible back into the same character.