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WellKnownSymbolKey

Enum WellKnownSymbolKey 

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pub enum WellKnownSymbolKey {
Show 15 variants Iterator, AsyncIterator, HasInstance, IsConcatSpreadable, Match, MatchAll, Replace, Search, Split, Species, ToPrimitive, ToStringTag, Unscopables, Dispose, AsyncDispose,
}
Expand description

Well-known Symbol property keys used in the iterator protocol. These are used to represent [Symbol.iterator] and [Symbol.asyncIterator] property names.

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Iterator

Symbol.iterator - used for sync iterables

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AsyncIterator

Symbol.asyncIterator - used for async iterables

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HasInstance

Symbol.hasInstance - used for instanceof checks

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IsConcatSpreadable

Symbol.isConcatSpreadable - used for array concat behavior

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Match

Symbol.match - used for String.match

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MatchAll

Symbol.matchAll - used for String.matchAll

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Replace

Symbol.replace - used for String.replace

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Search

Symbol.search - used for String.search

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Split

Symbol.split - used for String.split

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Species

Symbol.species - used for derived constructors

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ToPrimitive

Symbol.toPrimitive - used for type coercion

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ToStringTag

Symbol.toStringTag - used for Object.prototype.toString

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Unscopables

Symbol.unscopables - used for with statement

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Dispose

Symbol.dispose - used for using declarations

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AsyncDispose

Symbol.asyncDispose - used for async using declarations

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impl WellKnownSymbolKey

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pub const fn as_property_name(&self) -> &'static str

Returns the conventional string property name for this well-known symbol. This follows the convention of using "[Symbol.iterator]" etc. as property names.

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pub fn from_property_name(name: &str) -> Option<Self>

Parses a property name string into a well-known symbol key. Returns None if the string is not a well-known symbol property name.

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impl Clone for WellKnownSymbolKey

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fn clone(&self) -> WellKnownSymbolKey

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for WellKnownSymbolKey

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

Formats the value using the given formatter. Read more
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impl Hash for WellKnownSymbolKey

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for WellKnownSymbolKey

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for WellKnownSymbolKey

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impl StructuralPartialEq for WellKnownSymbolKey

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T> Upcast<T> for S
where T: UpcastFrom<S> + ?Sized, S: ?Sized,

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fn upcast(&self) -> &T
where Self: ErasableGeneric, T: ErasableGeneric<Repr = Self::Repr>,

Perform a zero-cost type-safe upcast to a wider ref type within the Wasm bindgen generics type system. Read more
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fn upcast_into(self) -> T
where Self: Sized + ErasableGeneric, T: ErasableGeneric<Repr = Self::Repr>,

Perform a zero-cost type-safe upcast to a wider type within the Wasm bindgen generics type system. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more