Enum MemoryError 

#[non_exhaustive]
pub enum MemoryError {
    NoFreeSlots,
    BadToken,
    NotAllocated,
    AlreadyBorrowed,
    BorrowActive,
    Poisoned,
}

Errors originating from memory manager operations.

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.

NoFreeSlots

No free slots available in the manager.

BadToken

Token index is out of range (invalid token) or the slot is not allocated.

NotAllocated

Attempted to free a slot that is not currently allocated.

AlreadyBorrowed

Attempted to borrow (read or write) but slot is already borrowed in an incompatible way.

BorrowActive

Attempted to free a slot while borrows are still active.

Poisoned

A synchronization primitive (lock) was poisoned.

Trait Implementations

impl Clone for MemoryError

fn clone(&self) -> MemoryError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryError

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

Formats the value using the given formatter.

impl Display for MemoryError

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

Formats the value using the given formatter.

impl Error for MemoryError

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 MemoryError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for MemoryError

impl Eq for MemoryError

impl StructuralPartialEq for MemoryError