Private

Struct Private 

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#[repr(C)]
pub struct Private(/* private fields */);
Expand description

A private symbol

This is an experimental feature. Use at your own risk.

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impl Private

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pub fn new<'s>( scope: &mut HandleScope<'s, ()>, name: Option<Local<'_, String>>, ) -> Local<'s, Private>

Create a private symbol. If name is not empty, it will be the description.

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pub fn for_api<'s>( scope: &mut HandleScope<'s, ()>, name: Option<Local<'_, String>>, ) -> Local<'s, Private>

Retrieve a global private symbol. If a symbol with this name has not been retrieved in the same isolate before, it is created. Note that private symbols created this way are never collected, so they should only be used for statically fixed properties. Also, there is only one global name space for the names used as keys. To minimize the potential for clashes, use qualified names as keys, e.g., “Class#property”.

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pub fn name<'s>(&self, scope: &mut HandleScope<'s, ()>) -> Local<'s, Value>

Returns the print name string of the private symbol, or undefined if none.

Methods from Deref<Target = Data>§

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pub fn get_hash(&self) -> int

Returns the V8 hash value for this value. The current implementation uses a hidden property to store the identity hash on some object types.

The return value will never be 0. Also, it is not guaranteed to be unique.

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pub fn is_value(&self) -> bool

Returns true if this data is a Value.

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pub fn is_module(&self) -> bool

Returns true if this data is a Module.

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pub fn is_private(&self) -> bool

Returns true if this data is a Private.

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pub fn is_object_template(&self) -> bool

Returns true if this data is an ObjectTemplate

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pub fn is_function_template(&self) -> bool

Returns true if this data is a FunctionTemplate.

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impl Debug for Private

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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 Private

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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<'s> PartialEq<Data> for Private

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fn eq(&self, other: &Data) -> 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<'s> PartialEq<Private> for Data

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fn eq(&self, other: &Private) -> 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<'s> PartialEq for Private

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fn eq(&self, other: &Private) -> 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 Deref for Private

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type Target = Data

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl Eq for Private

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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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.