Enum rustc_ast::tokenstream::Spacing

pub enum Spacing {
    Alone,
    Joint,
}

Similar to proc_macro::Spacing, but for tokens.

Note that all ast::TokenTree::Token instances have a Spacing, but when we convert to proc_macro::TokenTree for proc macros only Punct TokenTrees have a proc_macro::Spacing.

Variants

Alone

The token is not immediately followed by an operator token (as determined by Token::is_op). E.g. a + token is Alone in + =, +/*foo*/=, +ident, and +().

Joint

The token is immediately followed by an operator token. E.g. a + token is Joint in += and ++.

Trait Implementations

impl Clone for Spacing

fn clone(&self) -> Spacing

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Spacing

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for Spacing

fn decode(__decoder: &mut __D) -> Self

impl<__E: Encoder> Encodable<__E> for Spacing

fn encode(&self, __encoder: &mut __E)

impl<__CTX> HashStable<__CTX> for Spacingwhere
    __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<Spacing> for Spacing

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Spacing

impl StructuralPartialEq for Spacing

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• Alone: 0 bytes
• Joint: 0 bytes