Enum DagError 

pub enum DagError {
    CycleDetected(String),
    InvalidNode(String),
    InvalidEdge {
        from: String,
        to: String,
        message: String,
    },
    EmptyDag,
    UnreachableNode(String),
    MissingDependency(String),
}

DAG-specific errors.

Variants

CycleDetected(String)

Cycle detected in DAG.

InvalidNode(String)

Invalid node ID.

InvalidEdge

Invalid edge.

Fields

from: String

Source node ID.

to: String

Target node ID.

message: String

Error message.

EmptyDag

Empty DAG error.

UnreachableNode(String)

Unreachable node error.

MissingDependency(String)

Missing dependency error.

Implementations

impl DagError

pub fn cycle<S: Into<String>>(path: S) -> Self

Create a cycle detected error.

pub fn invalid_node<S: Into<String>>(node_id: S) -> Self

Create an invalid node error.

pub fn invalid_edge<S1: Into<String>, S2: Into<String>, S3: Into<String>>( from: S1, to: S2, message: S3, ) -> Self

Create an invalid edge error.

pub fn missing_dependency<S: Into<String>>(dep: S) -> Self

Create a missing dependency error.

Trait Implementations

impl Debug for DagError

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

Formats the value using the given formatter.

impl Display for DagError

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

Formats the value using the given formatter.

impl Error for DagError

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 From<DagError> for WorkflowError

fn from(source: DagError) -> Self

Converts to this type from the input type.