Enum proc_macro::Spacing

1.29.0 · source · [−]

pub enum Spacing {
    Alone,
    Joint,
}

Expand description

Describes whether a Punct is followed immediately by another Punct (Spacing::Joint) or by a different token or whitespace (Spacing::Alone).

Variants

`Alone`

A Punct is not immediately followed by another Punct. E.g. + is Alone in + =, +ident and +().

`Joint`

A Punct is immediately followed by another Punct. E.g. + is Joint in += and ++.

Additionally, single quote ' can join with identifiers to form lifetimes: 'ident.

Trait Implementations

impl Clone for Spacing

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fn clone(&self) -> Spacing

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Returns a copy of the value. Read more

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

1.0.0 · source

Performs copy-assignment from source. Read more

impl Debug for Spacing

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

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Formats the value using the given formatter. Read more

impl PartialEq<Spacing> for Spacing

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

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

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

1.0.0 · source

This method tests for !=.

Auto Trait Implementations

impl RefUnwindSafe for Spacing

impl Send for Spacing

impl Sync for Spacing

impl Unpin for Spacing

impl UnwindSafe for Spacing

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

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fn borrow(&self) -> &T

const: unstable · source

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

const: unstable · source

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

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fn from(t: T) -> T

const: unstable · source

Returns the argument unchanged.

impl<T, U> Into for T where
U: From<T>,

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fn into(self) -> U

const: unstable · source

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T where
T: Clone,

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type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

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🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom for T where
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

const: unstable · source

Performs the conversion.

impl<T, U> TryInto for T where
U: TryFrom<T>,

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type Error = >::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, >::Error>

const: unstable · source

Performs the conversion.

Enum proc_macro::Spacing

Variants

Alone

Joint

Trait Implementations

impl Clone for Spacing

fn clone(&self) -> Spacing

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

impl Debug for Spacing

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

impl PartialEq<Spacing> for Spacing

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

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

impl Copy for Spacing

impl Eq for Spacing

impl StructuralEq for Spacing

impl StructuralPartialEq for Spacing

Auto Trait Implementations

impl RefUnwindSafe for Spacing

impl Send for Spacing

impl Sync for Spacing

impl Unpin for Spacing

impl UnwindSafe for Spacing

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Alone`

`Joint`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,