Enum ExecutionError 

#[non_exhaustive]
pub enum ExecutionError {
    UnknownWorkflow(String),
    UnknownStep {
        workflow: String,
        step: String,
    },
    Circular(String),
    Operation(OperationError),
    Expression(ExpressionError),
    Select(SelectError),
    Criterion(CriterionError),
    Client(ClientError),
    BadRequest {
        step: String,
        reason: String,
    },
    Limit {
        limit: &'static str,
        at: usize,
    },
    Unsupported(String),
    NotWaiting,
    Awaiting {
        method: String,
        url: String,
    },
}

Why a run could not continue.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnknownWorkflow(String)

The description holds no workflow by that name.

UnknownStep

A goto named a step the workflow does not have.

Fields

workflow: String

The workflow the goto was in.

step: String

The step it named.

Circular(String)

dependsOn describes a circle.

Operation(OperationError)

The step’s operation could not be found.

Expression(ExpressionError)

A runtime expression could not be evaluated.

Select(SelectError)

A value or selector could not be resolved.

Criterion(CriterionError)

A criterion could not be decided.

Client(ClientError)

The client could not carry a request out.

BadRequest

The request could not be assembled.

Fields

step: String

The step being built.

reason: String

What went wrong.

Limit

A limit stopped the run — most likely a loop.

Fields

limit: &'static str

Which limit.

at: usize

What it was set to.

Unsupported(String)

Something Arazzo allows that this crate does not execute.

NotWaiting

supply was called when no request was outstanding.

Awaiting

advance was called again before the outstanding request was answered.

Fields

method: String

The method of the request still outstanding.

url: String

Its URL.

Trait Implementations

impl Debug for ExecutionError

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

Formats the value using the given formatter.

impl Display for ExecutionError

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

Formats the value using the given formatter.

impl Error for ExecutionError

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<ClientError> for ExecutionError

fn from(source: ClientError) -> Self

Converts to this type from the input type.

impl From<CriterionError> for ExecutionError

fn from(source: CriterionError) -> Self

Converts to this type from the input type.

impl From<ExpressionError> for ExecutionError

fn from(source: ExpressionError) -> Self

Converts to this type from the input type.

impl From<SelectError> for ExecutionError

fn from(source: SelectError) -> Self

Converts to this type from the input type.