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GcObjectHeader

Struct GcObjectHeader 

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pub struct GcObjectHeader {
    pub ref_count: i32,
    pub gc_obj_type: GcObjectType,
    pub mark: u8,
    pub free_mark: bool,
    pub list_kind: Option<GcListKind>,
    pub list_prev: Option<GcId>,
    pub list_next: Option<GcId>,
}
Expand description

Header shared by all cycle-GC’d objects. Matches QuickJS JSGCObjectHeader.

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§ref_count: i32§gc_obj_type: GcObjectType§mark: u8

GC-phase flag (not a permanent mark bit). Set to 1 after gc_decref processes the object.

§free_mark: bool

Zombie detection during cycle free, inspired by QuickJS free_mark.

§list_kind: Option<GcListKind>§list_prev: Option<GcId>§list_next: Option<GcId>

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impl GcObjectHeader

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pub fn new(gc_obj_type: GcObjectType, ref_count: i32) -> Self

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impl Clone for GcObjectHeader

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fn clone(&self) -> GcObjectHeader

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more

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.