Struct NodeFlags 

pub struct NodeFlags { /* private fields */ }

Flags that describe algebraic properties of a node.

Implementations

impl NodeFlags

pub const EMPTY: Self

No flags set.

pub const fn commutative() -> Self

Creates flags with commutativity set.

pub const fn commutative_associative() -> Self

Creates flags with both commutativity and associativity set.

pub const fn is_commutative(self) -> bool

Returns true if the commutative flag is set.

pub const fn is_associative(self) -> bool

Returns true if the associative flag is set.

pub const fn is_canonical(self) -> bool

Returns true if the canonical flag is set.

pub const fn with_canonical(self) -> Self

Sets the canonical flag.

pub const fn without_canonical(self) -> Self

Returns the flags with the canonical bit cleared.

Used by the deduplication map to compare structural identity without regard to whether a node has been marked canonical at runtime.

pub const fn bits(self) -> u8

Returns the raw bit pattern — used when packing to the wire representation in crate::dag::packed.

pub const fn from_bits(bits: u8) -> Self

Reconstructs flags from a raw bit pattern. Unknown bits are preserved; the future-proofing matters for forward compatibility when newer encodings carry flags this version doesn’t know yet.

Trait Implementations

impl<'__de, __Context> BorrowDecode<'__de, __Context> for NodeFlags

fn borrow_decode<__D: BorrowDecoder<'__de, Context = __Context>>( decoder: &mut __D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given [BorrowDecode].

impl Clone for NodeFlags

fn clone(&self) -> NodeFlags

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeFlags

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

Formats the value using the given formatter.

impl<__Context> Decode<__Context> for NodeFlags

fn decode<__D: Decoder<Context = __Context>>( decoder: &mut __D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given [Decode].

impl Encode for NodeFlags

fn encode<__E: Encoder>(&self, encoder: &mut __E) -> Result<(), EncodeError>

Encode a given type.

impl Hash for NodeFlags

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for NodeFlags

fn eq(&self, other: &NodeFlags) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for NodeFlags

impl Eq for NodeFlags

impl StructuralPartialEq for NodeFlags