1.29.0[][src]Struct proc_macro::Punct

pub struct 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.

Implementations

impl Punct[src]

pub fn new(ch: char, spacing: Spacing) -> Punct[src]

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[src]

Returns the value of this punctuation character as char.

pub fn spacing(&self) -> Spacing[src]

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[src]

Returns the span for this punctuation character.

pub fn set_span(&mut self, span: Span)[src]

Configure the span for this punctuation character.

Trait Implementations

impl Clone for Punct[src]

impl Debug for Punct[src]

impl Display for Punct[src]

Prints the punctuation character as a string that should be losslessly convertible back into the same character.

impl From<Punct> for TokenTree[src]

impl !Send for Punct[src]

impl !Sync for Punct[src]

impl ToString for Punct1.15.0[src]

Auto Trait Implementations

impl RefUnwindSafe for Punct

impl Unpin for Punct

impl UnwindSafe for Punct

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.