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GcHeader

Struct GcHeader 

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pub struct GcHeader {
    pub kind: u8,
    pub size: u32,
    /* private fields */
}
Expand description

8-byte header prepended to every GC-managed object.

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§kind: u8

HeapKind discriminant for type identification during tracing.

§size: u32

Object size in bytes (excluding this header).

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impl GcHeader

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pub fn new(kind: u8, size: u32) -> Self

Create a new header for a young-generation white object.

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pub fn color(&self) -> GcColor

Get the object’s color.

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pub fn set_color(&mut self, color: GcColor)

Set the object’s color.

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pub fn generation(&self) -> Generation

Get the generation.

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pub fn set_generation(&mut self, generation: Generation)

Set the generation.

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pub fn is_forwarded(&self) -> bool

Check if this object has been forwarded (relocated).

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pub fn set_forwarded(&mut self, forwarded: bool)

Mark this object as forwarded.

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impl Clone for GcHeader

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fn clone(&self) -> GcHeader

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 GcHeader

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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 Copy for GcHeader

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<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.