Enum DirectoryReadError 

pub enum DirectoryReadError {
    Cancelled,
    TraversalState,
    ZeroLimit,
    LimitOverflow,
    WrongRootKind,
    InvalidLimits,
    HeightExceeded,
    Cycle,
    ChildBoundsMismatch,
    AllocationFailed,
    Storage(ObjectStoreError),
    Decode(CanonicalDecodeError),
    Work(WorkError),
}

Authenticated bounded directory-read failures.

Variants

Cancelled

Cooperative cancellation occurred before the next storage boundary.

TraversalState

The private driver attempted an impossible transition.

ZeroLimit

Page bound must be positive.

LimitOverflow

Page-bound allocation overflowed this target.

WrongRootKind

Root is not a tree page.

InvalidLimits

Decode/traversal limits are internally inconsistent.

HeightExceeded

Traversal exceeded the admitted height.

Cycle

Child graph references an ancestor or aliases a traversed page.

ChildBoundsMismatch

Parent routing bounds disagree with a child page.

AllocationFailed

A bounded scratch allocation could not be represented or reserved.

Storage(ObjectStoreError)

Immutable object backend failed.

Decode(CanonicalDecodeError)

Canonical tree page failed decoding.

Work(WorkError)

Exact work exceeded or overflowed its budget.

Trait Implementations

impl Debug for DirectoryReadError

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

Formats the value using the given formatter.

impl Display for DirectoryReadError

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

Formats the value using the given formatter.

impl Error for DirectoryReadError

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 From<CanonicalDecodeError> for DirectoryReadError

fn from(source: CanonicalDecodeError) -> Self

Converts to this type from the input type.

impl From<DirectoryReadError> for FsError

fn from(source: DirectoryReadError) -> Self

Converts to this type from the input type.

impl From<DirectoryReadError> for GenerationMutationError

fn from(source: DirectoryReadError) -> Self

Converts to this type from the input type.

impl From<DirectoryReadError> for AuthenticatedProbeError

fn from(source: DirectoryReadError) -> Self

Converts to this type from the input type.

impl From<ObjectStoreError> for DirectoryReadError

fn from(source: ObjectStoreError) -> Self

Converts to this type from the input type.

impl From<WorkError> for DirectoryReadError

fn from(source: WorkError) -> Self

Converts to this type from the input type.