Struct mozjs_sys::jsapi::JS::Handle

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#[repr(C)]
pub struct Handle<T> { pub ptr: *const T, pub _phantom_0: PhantomData<UnsafeCell<T>>, }
Expand description

Reference to a T that has been rooted elsewhere. This is most useful as a parameter type, which guarantees that the T lvalue is properly rooted. See “Move GC Stack Rooting” above.

If you want to add additional methods to Handle for a specific specialization, define a HandleOperations specialization containing them.

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§ptr: *const T§_phantom_0: PhantomData<UnsafeCell<T>>

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Trait Implementations§

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impl<T: Clone> Clone for Handle<T>

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fn clone(&self) -> Handle<T>

Returns a copy 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<T: Debug> Debug for Handle<T>

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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<T> Deref for Handle<T>

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type Target = T

The resulting type after dereferencing.
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fn deref<'a>(&'a self) -> &'a T

Dereferences the value.
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impl<T: IntoHandle> From<T> for Handle<T::Target>

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fn from(value: T) -> Self

Converts to this type from the input type.
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impl<T: PartialEq> PartialEq for Handle<T>

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fn eq(&self, other: &Handle<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl<T: Copy> Copy for Handle<T>

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impl<T> StructuralPartialEq for Handle<T>

Auto Trait Implementations§

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impl<T> Freeze for Handle<T>

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impl<T> !RefUnwindSafe for Handle<T>

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impl<T> !Send for Handle<T>

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impl<T> !Sync for Handle<T>

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impl<T> Unpin for Handle<T>
where T: Unpin,

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impl<T> UnwindSafe for Handle<T>

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<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.