Enum Refusal 

pub enum Refusal {
    StaleGeneration {
        current: u64,
    },
    FutureGeneration {
        current: u64,
    },
    WrongIncarnation {
        current: u64,
    },
    Limit {
        message: String,
    },
    Engine {
        message: String,
    },
    Closed,
}

A typed refusal (AR09: explicit outcomes, never silent divergence).

Variants

StaleGeneration

The action’s base predates the newest publication: the client missed a delta and must resync before acting.

Fields

current: u64

FutureGeneration

The action claims a generation the backend has not reached.

Fields

current: u64

WrongIncarnation

The action names a different backend incarnation.

Fields

current: u64

Limit

A declared bound was exceeded (viewport cells, frame bytes).

Fields

message: String

Engine

The admitted engine path itself reported an I/O failure.

Fields

message: String

Closed

The backend is shutting down; no further actions are admitted.

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<'de> Deserialize<'de> for Refusal

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Refusal

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

Formats the value using the given formatter.

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 Serialize for Refusal

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Refusal