Enum WorkflowValidationError 

pub enum WorkflowValidationError {
    DuplicateNode {
        node_id: NodeId,
    },
    DuplicatePort {
        node_id: NodeId,
        port_id: PortId,
    },
    UnknownNode {
        edge_index: usize,
        endpoint: EdgeEndpointRole,
        node_id: NodeId,
    },
    UnknownPort {
        edge_index: usize,
        endpoint: EdgeEndpointRole,
        node_id: NodeId,
        port_id: PortId,
        expected: PortDirection,
    },
    CycleDetected {
        cycle: Vec<NodeId>,
    },
}

Error returned when a workflow graph is structurally invalid.

Variants

DuplicateNode

Two nodes in the graph used the same identifier.

Fields

node_id: NodeId

Duplicated node identifier.

DuplicatePort

A node declared the same port identifier more than once.

Fields

node_id: NodeId

Node that owns the duplicated port.

port_id: PortId

Duplicated port identifier.

UnknownNode

An edge referenced a node that is not declared in the graph.

Fields

edge_index: usize

Zero-based index of the invalid edge.

endpoint: EdgeEndpointRole

Endpoint role that referenced the missing node.

node_id: NodeId

Missing node identifier.

UnknownPort

An edge referenced a port that is not declared for the required direction.

Fields

edge_index: usize

Zero-based index of the invalid edge.

endpoint: EdgeEndpointRole

Endpoint role that referenced the missing port.

node_id: NodeId

Node that should own the port.

port_id: PortId

Missing port identifier.

expected: PortDirection

Direction required by this endpoint.

CycleDetected

The graph contains a directed cycle.

Fields

cycle: Vec<NodeId>

One detected cycle, reported in traversal order.

Trait Implementations

impl Clone for WorkflowValidationError

fn clone(&self) -> WorkflowValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WorkflowValidationError

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

Formats the value using the given formatter.

impl Display for WorkflowValidationError

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

Formats the value using the given formatter.

impl Error for WorkflowValidationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for WorkflowValidationError

fn eq(&self, other: &WorkflowValidationError) -> 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 Eq for WorkflowValidationError

impl StructuralPartialEq for WorkflowValidationError