Enum GraphIssue 

pub enum GraphIssue {
    CycleDetected {
        description: String,
    },
    DisconnectedInput {
        node_label: String,
    },
    DisconnectedOutput {
        node_label: String,
    },
    IncompatibleFormat {
        from_label: String,
        to_label: String,
    },
    MissingResource {
        node_label: String,
        resource: String,
    },
    Warning {
        message: String,
    },
}

A single issue found during graph validation.

Variants

CycleDetected

A directed cycle exists; the graph cannot be processed in order.

Fields

description: String

Human-readable description of where the cycle was detected.

DisconnectedInput

A node has no incoming connections when at least one is required.

Fields

node_label: String

Label of the node that is missing an incoming connection.

DisconnectedOutput

A node has no outgoing connections when at least one is required.

Fields

node_label: String

Label of the node that is missing an outgoing connection.

IncompatibleFormat

Two adjacent nodes have incompatible formats / types.

Fields

from_label: String

Label of the upstream (source) node.

to_label: String

Label of the downstream (destination) node.

MissingResource

A node references a resource that does not exist.

Fields

node_label: String

Label of the node with the missing resource reference.

resource: String

Name / identifier of the missing resource.

Warning

Informational warning; does not block execution.

Fields

message: String

Human-readable warning message.

Implementations

impl GraphIssue

pub fn is_fatal(&self) -> bool

Returns true if this issue must be resolved before the graph can run.

pub fn category(&self) -> &'static str

Short category tag for the issue.

Trait Implementations

impl Clone for GraphIssue

fn clone(&self) -> GraphIssue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphIssue

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

Formats the value using the given formatter.

impl Eq for GraphIssue

impl PartialEq for GraphIssue

fn eq(&self, other: &GraphIssue) -> 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 StructuralPartialEq for GraphIssue