Struct RelatesFact 

pub struct RelatesFact { /* private fields */ }

A direct related-role fact, optionally specializing a parent role.

Implementations

impl RelatesFact

pub fn new( id: RelatesFactId, specializes: Option<RoleId>, ) -> Result<Self, Diagnostic>

Construct an unordered related-role fact.

pub fn new_with_collection_mode( id: RelatesFactId, specializes: Option<RoleId>, collection_mode: CollectionMode, ) -> Result<Self, Diagnostic>

Construct a related-role fact with explicit collection semantics.

pub const fn with_collection_mode(self, collection_mode: CollectionMode) -> Self

Replace this fact’s collection semantics without changing its identity.

pub const fn id(&self) -> &RelatesFactId

Return the fact identity.

pub const fn specializes(&self) -> Option<&RoleId>

Return the specialized parent role, if any.

pub const fn collection_mode(&self) -> CollectionMode

Return the canonical collection semantics.

Trait Implementations

impl Clone for RelatesFact

fn clone(&self) -> RelatesFact

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RelatesFact

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

Formats the value using the given formatter.

impl Eq for RelatesFact

impl PartialEq for RelatesFact

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for RelatesFact

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RelatesFact