Enum AppError 

#[non_exhaustive]
pub enum AppError {
    InvalidDelta,
    PendingIdleCommands,
    WorldMutationPoisoned,
    TerminalFault,
    WorldTickExhausted,
    FixedStepExhausted,
    InvalidUpdatePlan(ScheduleError),
    Fault(AppFault),
}

Recoverable preflight failures and terminal execution faults for App.

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.

InvalidDelta

delta_seconds was negative, NaN, or infinite.

PendingIdleCommands

Deferred commands remain unflushed before the next pass.

WorldMutationPoisoned

A prior mutation left the world in a poisoned state.

TerminalFault

The application already recorded a terminal fault.

WorldTickExhausted

crate::time::WorldTick cannot advance further.

FixedStepExhausted

Fixed-step indices cannot advance further.

InvalidUpdatePlan(ScheduleError)

UpdatePlan selection failed schedule validation.

Fault(AppFault)

A system or stage pass aborted with location detail.

Trait Implementations

impl Clone for AppError

fn clone(&self) -> AppError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AppError

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

Formats the value using the given formatter.

impl Display for AppError

Available on crate feature std only.

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

Formats the value using the given formatter.

impl Eq for AppError

impl Error for AppError

Available on crate feature std only.

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 AppError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AppError