Enum WorkflowError 

pub enum WorkflowError {
    CycleDetected(String),
    UnknownDependency(String),
    DuplicateNodeId(String),
    NodeFailed {
        node_id: String,
        reason: String,
    },
    Rejected {
        node_id: String,
        reason: String,
    },
    Deadlock,
    ApprovalWithoutController(String),
    AgentError {
        node_id: String,
        source: AgentError,
    },
}

Errors that can occur during workflow execution or construction.

Variants

CycleDetected(String)

The workflow graph contains a cycle.

UnknownDependency(String)

A node references a dependency that does not exist.

DuplicateNodeId(String)

Duplicate node ID in the workflow.

NodeFailed

A node failed during execution.

Fields

node_id: String

The ID of the node that failed.

reason: String

The error message.

Rejected

An approval node was rejected.

Fields

node_id: String

The ID of the approval node.

reason: String

The rejection reason.

Deadlock

Deadlock: unfinished nodes but none are ready.

ApprovalWithoutController(String)

The workflow contains an approval node but was started without a controller (Workflow::run); nobody could ever approve it.

AgentError

An agent node execution failed.

Fields

node_id: String

The ID of the agent node.

source: AgentError

The underlying agent error.

Trait Implementations

impl Debug for WorkflowError

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

Formats the value using the given formatter.

impl Display for WorkflowError

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

Formats the value using the given formatter.

impl Error for WorkflowError

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.