Enum RoleInconsistency 

#[non_exhaustive]
pub enum RoleInconsistency {
    NoPath {
        element: EntityId,
        role: ElementRole,
        has_inlet: bool,
        has_outlet: bool,
    },
    UndirectedPorts {
        element: EntityId,
        count: usize,
    },
}

A disagreement between an element’s role and how its ports are directed.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NoPath

An element that should pass flow has no way in, or no way out.

A segment with two SOURCE ports cannot receive anything: whatever the exporter intended, nothing can flow through it as stated.

Fields

element: EntityId

The element.

role: ElementRole

Its role.

has_inlet: bool

Whether any port accepts flow.

has_outlet: bool

Whether any port emits flow.

UndirectedPorts

An element carries ports whose direction the file never stated.

Not an error: FlowDirection is OPTIONAL. It is reported because an undirected port cannot orient an edge, so downstream queries will stop at it and a caller deserves to know why.

Fields

element: EntityId

The element.

count: usize

How many of its ports have no stated direction.

Trait Implementations

impl Clone for RoleInconsistency

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoleInconsistency

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

Formats the value using the given formatter.

impl Eq for RoleInconsistency

impl PartialEq for RoleInconsistency

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RoleInconsistency