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Member

Struct Member 

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pub struct Member<T: GarbageCollected> { /* private fields */ }
Expand description

Members are used in classes to contain strong pointers to other garbage collected objects. All Member fields of a class must be traced in the class’ trace method.

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impl<T: GarbageCollected> Member<T>

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pub fn empty() -> Self

Create a new empty Member which may be set later.

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pub fn new(other: &impl GetRustObj<T>) -> Self

Create a new Member and initialize it with an object.

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pub fn set(&mut self, other: &impl GetRustObj<T>)

Set the object pointed to by this Member .

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pub unsafe fn get(&self) -> Option<&T>

Get the object pointed to by this Member , returning None if the pointer is empty or has been garbage-collected.

§Safety

The caller must ensure that this pointer is being traced correctly by appearing in the trace implementation of the object that owns the pointer. Between initializing the pointer and calling get(), the pointer must be reachable by the garbage collector.

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impl<T: GarbageCollected> Debug for Member<T>

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

Formats the value using the given formatter. Read more
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impl<T: GarbageCollected> Traced for Member<T>

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fn trace(&self, visitor: &mut Visitor)

Called by the Visitor when tracing managed objects.

Auto Trait Implementations§

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impl<T> Freeze for Member<T>

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impl<T> RefUnwindSafe for Member<T>
where T: RefUnwindSafe,

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impl<T> Send for Member<T>
where T: Send,

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impl<T> Sync for Member<T>
where T: Sync,

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

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impl<T> UnsafeUnpin for Member<T>

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impl<T> UnwindSafe for Member<T>
where T: UnwindSafe,

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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, 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<T> ErasedDestructor for T
where T: 'static,