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NodeRecord

Struct NodeRecord 

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#[repr(C)]
pub struct NodeRecord { pub id: NodeId, pub label_bits: u64, pub props_offset: u32, pub props_count: u16, pub flags: NodeFlags, pub epoch: EpochId, }
Expand description

The compact, cache-line friendly representation of a node.

This struct is exactly 32 bytes and is used for the primary node storage. Properties are stored separately in columnar format.

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§id: NodeId

Unique node identifier.

§label_bits: u64

Bitmap of label IDs (supports up to 64 labels).

§props_offset: u32

Offset into the property arena.

§props_count: u16

Number of properties.

§flags: NodeFlags

Flags (deleted, has_version, etc.).

§epoch: EpochId

Epoch this record was created in.

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impl NodeRecord

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pub const FLAG_DELETED: u16

Flag indicating the node is deleted.

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pub const FLAG_HAS_VERSION: u16

Flag indicating the node has version history.

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pub const fn new(id: NodeId, epoch: EpochId) -> Self

Creates a new node record.

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pub const fn is_deleted(&self) -> bool

Checks if this node is deleted.

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pub fn set_deleted(&mut self, deleted: bool)

Marks this node as deleted.

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pub const fn has_label_bit(&self, bit: u8) -> bool

Checks if this node has a label by its bit index.

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pub fn set_label_bit(&mut self, bit: u8)

Sets a label bit.

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pub fn clear_label_bit(&mut self, bit: u8)

Clears a label bit.

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pub fn label_bits_iter(&self) -> impl Iterator<Item = u8> + '_

Returns an iterator over the set label bits.

Trait Implementations§

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impl Clone for NodeRecord

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fn clone(&self) -> NodeRecord

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 NodeRecord

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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 NodeRecord

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.