Struct TokenWithMetadata 

pub struct TokenWithMetadata<T, U> {
    pub token: T,
    pub metadata: U,
}

A simple struct holding a token and its associated metadata.

Though TokenWithMetadata::token is generic, it should be a token from proc_macro2 other than Group (Ident, Punct, or Literal).

To get the token without metadata, simply read the TokenWithMetadata::token field.

Fields

token: T

The token.

metadata: U

The associated metadata.

Trait Implementations

impl<T: Clone, U: Clone> Clone for TokenWithMetadata<T, U>

fn clone(&self) -> TokenWithMetadata<T, U>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug, U: Debug> Debug for TokenWithMetadata<T, U>

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

Formats the value using the given formatter.

impl<T: Default, U: Default> Default for TokenWithMetadata<T, U>

fn default() -> TokenWithMetadata<T, U>

Returns the “default value” for a type.

impl<T, U> Deref for TokenWithMetadata<T, U>

Allow accessing the token’s methods directly.

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T, U> DerefMut for TokenWithMetadata<T, U>

Allow accessing the token’s methods directly.

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: Eq, U: Eq> Eq for TokenWithMetadata<T, U>

impl<T, U> From<(T, U)> for TokenWithMetadata<T, U>

fn from((token, metadata): (T, U)) -> Self

Converts to this type from the input type.

impl<T, U: Default> From<T> for TokenWithMetadata<T, U>

fn from(token: T) -> Self

Converts to this type from the input type.

impl<T: Hash, U: Hash> Hash for TokenWithMetadata<T, U>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: PartialEq, U: PartialEq> PartialEq for TokenWithMetadata<T, U>

fn eq(&self, other: &TokenWithMetadata<T, U>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<T, U> StructuralPartialEq for TokenWithMetadata<T, U>