1.29.0[−][src]Struct proc_macro::Punct
An Punct
is an single punctuation character like +
, -
or #
.
Multi-character operators like +=
are represented as two instances of Punct
with different
forms of Spacing
returned.
Methods
impl Punct
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pub fn new(ch: char, spacing: Spacing) -> Punct
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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.
pub fn as_char(&self) -> char
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Returns the value of this punctuation character as char
.
pub fn spacing(&self) -> Spacing
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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.
pub fn span(&self) -> Span
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Returns the span for this punctuation character.
pub fn set_span(&mut self, span: Span)
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Configure the span for this punctuation character.
Trait Implementations
impl !Send for Punct
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impl !Sync for Punct
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impl Clone for Punct
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impl From<Punct> for TokenTree
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impl ToString for Punct
1.15.0[src]
impl Debug for Punct
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impl Display for Punct
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Prints the punctuation character as a string that should be losslessly convertible back into the same character.
Auto Trait Implementations
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,