Enum Refusal 

pub enum Refusal {
    GroundStop,
    NoSuchAgent {
        agent: AgentName,
    },
    NoRoute {
        from: AgentName,
        to: AgentName,
    },
    NoSuchRunner {
        agent: AgentName,
        runner: String,
    },
    NoRunner {
        agent: AgentName,
    },
    Rail(Denial),
}

Why a flight will not be flown.

Variants

GroundStop

A Ground Stop is engaged, so nothing starts.

NoSuchAgent

The flight names an agent the factory does not declare.

Fields

agent: AgentName

The name that is not declared.

NoRoute

The route map does not permit this edge.

Not an error in the sending agent so much as a fact about the factory: the mesh is a permission graph, and an edge that is not drawn is a message that may not be sent.

Fields

from: AgentName

Who tried to send.

to: AgentName

Who they tried to reach.

NoSuchRunner

The agent names a runner the factory does not declare.

Fields

agent: AgentName

The agent whose runner is missing.

runner: String

The runner that is not declared.

NoRunner

The agent declares no runner and there is no default.

Fields

agent: AgentName

The agent with nothing to run it.

Rail(Denial)

A safety rail refused it.

Trait Implementations

impl Clone for Refusal

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Refusal

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

Formats the value using the given formatter.

impl Display for Refusal

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

Formats the value using the given formatter.

impl Eq for Refusal

impl Error for Refusal

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 PartialEq for Refusal

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Refusal