Trait any_key::AnyHash

pub trait AnyHash: Any {
    fn debug(&self, f: &mut Formatter) -> Result;
    fn eq(&self, other: &AnyHash) -> bool;
    fn hash(&self, hasher: &mut Hasher);
}

Object-safe trait for dynamically typed hashable keys.

All Eq + Hash + 'static types automatically implement this trait.

On nightly, if the inner value implements Debug, then Debug for AnyHash will use that implementation. Otherwise, it will only show a generic message.

Required Methods

fn debug(&self, f: &mut Formatter) -> Result

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

fn hash(&self, hasher: &mut Hasher)

Methods

impl AnyHash

fn is<T: AnyHash>(&self) -> bool

Returns true if the boxed type is the same as T

fn downcast_ref<T: AnyHash>(&self) -> Option<&T>

Returns some reference to the boxed value if it is of type T, or None if it isn't.

unsafe fn downcast_ref_unchecked<T: AnyHash>(&self) -> &T

Returns a reference to the boxed value, blindly assuming it to be of type T. If you are not absolutely certain of T, you must not call this.

fn downcast_mut<T: AnyHash>(&mut self) -> Option<&mut T>

Returns some mutable reference to the boxed value if it is of type T, or None if it isn't.

unsafe fn downcast_mut_unchecked<T: AnyHash>(&mut self) -> &mut T

Returns a mutable reference to the boxed value, blindly assuming it to be of type T. If you are not absolutely certain of T, you must not call this.

impl AnyHash

fn downcast<T: AnyHash>(self: Box<Self>) -> Result<Box<T>, Box<Self>>

Returns the boxed value if it is of type T, or Err(Self) if it isn't.

unsafe fn downcast_unchecked<T: AnyHash>(self: Box<Self>) -> Box<T>

Returns the boxed value, blindly assuming it to be of type T. If you are not absolutely certain of T, you must not call this.

Trait Implementations

impl Debug for AnyHash

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

Formats the value using the given formatter.

impl Debug for AnyHash + Send

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

Formats the value using the given formatter.

impl Debug for AnyHash + Send + Sync

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

Formats the value using the given formatter.

impl PartialEq for AnyHash

fn eq(&self, other: &Self) -> 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 !=.

impl PartialEq for AnyHash + Send

fn eq(&self, other: &Self) -> 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 !=.

impl PartialEq for AnyHash + Send + Sync

fn eq(&self, other: &Self) -> 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 !=.

impl Eq for AnyHash

impl Eq for AnyHash + Send

impl Eq for AnyHash + Send + Sync

impl Hash for AnyHash

fn hash<H: Hasher>(&self, hasher: &mut H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Hash for AnyHash + Send

fn hash<H: Hasher>(&self, hasher: &mut H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Hash for AnyHash + Send + Sync

fn hash<H: Hasher>(&self, hasher: &mut H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

Implementors

• impl<T: Eq + Hash + 'static> AnyHash for T