Struct refuse::AnyRef

pub struct AnyRef { /* private fields */ }

A type-erased garbage collected reference.

Implementations

impl AnyRef

pub const fn downcast_ref<T>(&self) -> Ref<T>

where T: Collectable,

Returns a Ref<T>.

This function does not do any type checking. If T is not the correct type, attempting to load the underyling value will fail.

pub fn downcast_checked<T>(&self) -> Option<Ref<T>>

where T: Collectable,

Returns a Ref<T>.

This function does not do any type checking. If T is not the correct type, attempting to load the underyling value will fail.

pub fn downcast_root<T>(&self, guard: &CollectionGuard<'_>) -> Option<Root<T>>

where T: Collectable,

Returns a Root<T> if the underlying reference points to a T that has not been collected.

pub fn load<'guard, T>( &self, guard: &'guard CollectionGuard<'_> ) -> Option<&'guard T>

where T: Collectable,

Loads a reference to the underlying data. Returns None if the data has been collected and is no longer available.

pub fn load_mapped<'guard, T>( &self, guard: &'guard CollectionGuard<'_> ) -> Option<&'guard T>

where T: ?Sized + 'static,

Returns a reference to the result of MapAs::map_as(), if the value has not been collected and MapAs::Target is T.

Examples found in repository

examples/map_as.rs (line 37)

fn main() {
    let guard = CollectionGuard::acquire();
    let gced: Ref<SomeType> = Ref::new(SomeType, &guard);
    let type_erased: AnyRef = gced.as_any();
    type_erased
        .load_mapped::<dyn SomeTrait>(&guard)
        .unwrap()
        .do_something();
}

Trait Implementations

impl Clone for AnyRef

fn clone(&self) -> AnyRef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AnyRef

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

Formats the value using the given formatter.

impl From<&AnyRef> for AnyRef

fn from(value: &AnyRef) -> Self

Converts to this type from the input type.

impl<T> From<&Ref<T>> for AnyRef

where T: Collectable,

fn from(value: &Ref<T>) -> Self

Converts to this type from the input type.

impl<T> From<&Root<T>> for AnyRef

where T: Collectable,

fn from(value: &Root<T>) -> Self

Converts to this type from the input type.

impl<T> From<Ref<T>> for AnyRef

where T: Collectable,

fn from(value: Ref<T>) -> Self

Converts to this type from the input type.

impl Hash for AnyRef

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 Ord for AnyRef

fn cmp(&self, other: &AnyRef) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<T> PartialEq<&AnyRef> for Ref<T>

where T: Collectable,

fn eq(&self, other: &&AnyRef) -> 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<T> PartialEq<&AnyRef> for Root<T>

where T: Collectable,

fn eq(&self, other: &&AnyRef) -> 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<T> PartialEq<AnyRef> for Ref<T>

where T: Collectable,

fn eq(&self, other: &AnyRef) -> 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<T> PartialEq<AnyRef> for Root<T>

where T: Collectable,

fn eq(&self, other: &AnyRef) -> 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 PartialEq for AnyRef

fn eq(&self, other: &AnyRef) -> 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 PartialOrd for AnyRef

fn partial_cmp(&self, other: &AnyRef) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Trace for AnyRef

const MAY_CONTAIN_REFERENCES: bool = true

If true, this type may contain references and should have its trace() function invoked during the collector’s “mark” phase.

fn trace(&self, tracer: &mut Tracer<'_>)

Traces all refrences that this value references.

impl Copy for AnyRef

impl Eq for AnyRef

impl StructuralPartialEq for AnyRef