Enum hecs::ComponentError

pub enum ComponentError {
    NoSuchEntity,
    MissingComponent(MissingComponent),
}

Errors that arise when accessing components

Variants

NoSuchEntity

The entity was already despawned

MissingComponent(MissingComponent)

The entity did not have a requested component

Trait Implementations

impl Clone for ComponentError

fn clone(&self) -> ComponentError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ComponentError

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

Formats the value using the given formatter.

impl Display for ComponentError

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

Formats the value using the given formatter.

impl Error for ComponentError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

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

impl From<MissingComponent> for ComponentError

fn from(x: MissingComponent) -> Self

Performs the conversion.

impl From<NoSuchEntity> for ComponentError

fn from(NoSuchEntity: NoSuchEntity) -> Self

Performs the conversion.

impl Hash for ComponentError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<ComponentError> for ComponentError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for ComponentError

impl StructuralEq for ComponentError

impl StructuralPartialEq for ComponentError