Enum WorkflowError 

pub enum WorkflowError {
    NoOutputs,
    MissingDependency {
        node: usize,
        dependency: usize,
    },
    TypeMismatch {
        node: usize,
    },
    Cycle,
    MissingInput(Box<str>),
    InputType {
        name: Box<str>,
        expected: &'static str,
    },
    Cancelled,
    MemoryRefused {
        estimated: usize,
        budget: usize,
    },
    Operation {
        operation: &'static str,
        message: Box<str>,
    },
    InternalTypeMismatch {
        expected: &'static str,
    },
    ResultType {
        name: Box<str>,
    },
    MissingResult(Box<str>),
}

Workflow compilation or execution failure.

Variants

NoOutputs

The graph has no named outputs.

MissingDependency

A dependency index is invalid.

Fields

node: usize

Node being validated.

dependency: usize

Missing dependency index.

TypeMismatch

A dependency type does not match the operation signature.

Fields

node: usize

Node being validated.

Cycle

A cycle prevents stable topological execution.

MissingInput(Box<str>)

A required named input was not supplied.

InputType

A named input has the wrong concrete type.

Fields

name: Box<str>

Input name.

expected: &'static str

Expected Rust type.

Cancelled

Execution was cancelled between nodes.

MemoryRefused

Static output-lifetime planning exceeds the execution budget.

Fields

estimated: usize

Conservative workflow estimate.

budget: usize

Context memory ceiling.

Operation

A kernel rejected its input or could not produce its result.

Fields

operation: &'static str

Operation name.

message: Box<str>

Kernel error.

InternalTypeMismatch

Internal type validation disagreed with the typed builder.

Fields

expected: &'static str

Expected concrete Rust type.

ResultType

A named result was requested with the wrong type.

Fields

name: Box<str>

Result name.

MissingResult(Box<str>)

A result handle does not belong to this execution.

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.

impl From<&WorkflowError> for Diagnostic

fn from(error: &WorkflowError) -> Self

Converts to this type from the input type.

impl From<WorkflowError> for Diagnostic

fn from(value: WorkflowError) -> Self

Converts to this type from the input type.