Enum BreakCause 

pub enum BreakCause {
    NotFound {
        what: PendingRef,
    },
    Ambiguous {
        what: PendingRef,
        candidates: Vec<NodeId>,
    },
    KindMismatch {
        expected: &'static str,
        found: &'static str,
    },
    IllegalCycle {
        through: NodeId,
    },
}

Why resolution failed.

A reference must never sit in Pending after a failed attempt — the failure is recorded so it can be reported. Spec §2.

Variants

NotFound

Nothing in the model carries that name.

Fields

what: PendingRef

The name that was looked up.

Ambiguous

More than one node carries that name.

Fields

what: PendingRef

The name that was looked up.

candidates: Vec<NodeId>

Every node that matched.

KindMismatch

The target exists but is the wrong kind of node.

Fields

expected: &'static str

Kind the reference required.

found: &'static str

Kind actually found.

IllegalCycle

Resolving would close a cycle the specification forbids, for example a struct inheriting from itself.

Fields

through: NodeId

Node the cycle passes through.

Trait Implementations

impl Clone for BreakCause

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 BreakCause

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

Formats the value using the given formatter.

impl Eq for BreakCause

impl PartialEq for BreakCause

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BreakCause