Enum DependencySupport 

pub enum DependencySupport {
    BothDirections,
    ForwardOnly,
}

How far a source can walk its own dependency edges.

There is deliberately no unsupported variant: dependency traversal is a guaranteed capability of this product, not one a source may opt out of. A source that cannot report an item’s forward edges cannot implement TaskSource. The weakest declaration is ForwardOnly, which the engine answers in reverse by a bounded scan and reports as emulated.

Variants

BothDirections

The source answers both directions itself.

ForwardOnly

The source answers forward edges; the engine emulates the reverse.

Implementations

impl DependencySupport

pub fn answers_reverse(self) -> bool

Whether the source answers the reverse direction itself.

Trait Implementations

impl Clone for DependencySupport

fn clone(&self) -> DependencySupport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DependencySupport

impl Debug for DependencySupport

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DependencySupport

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DependencySupport

impl Hash for DependencySupport

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 JsonSchema for DependencySupport

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for DependencySupport

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DependencySupport

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 DependencySupport