Struct TypeToken

pub struct TypeToken<T: ?Sized + 'static>(/* private fields */);

Zero-sized token implementation which use a type as unicity marker.

Implementations

impl<T: ?Sized + 'static> TypeToken<T>

pub fn new() -> Self

Initializes a TypeToken.

pub fn try_new() -> Result<Self, AlreadyInitialized>

Initializes TypeToken, fails if it has already been initialized.

Trait Implementations

impl<T: ?Sized + 'static> Debug for TypeToken<T>

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

Formats the value using the given formatter.

impl<T: ?Sized + 'static> Default for TypeToken<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: ?Sized + 'static> Drop for TypeToken<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: ?Sized + 'static> Token for TypeToken<T>

type Id = ()

Id of the token.

fn id(&self) -> Self::Id

Returns the token id.

fn is_unique(&mut self) -> bool

Returns true if the token is “unique”, see safety