Enum TreeMutationError 

pub enum TreeMutationError {
    Empty,
    TooManyMutations,
    WrongRootKind,
    InvalidLimits,
    PageItemTooLarge,
    HeightExceeded,
    CycleOrAlias,
    ChildBoundsMismatch,
    MutationContract,
    AllocationFailed,
    AlreadyExists,
    Missing,
    FileIdentityConflict,
    Storage(ObjectStoreError),
    Decode(CanonicalDecodeError),
    Work(WorkError),
}

Persistent directory mutation failures.

Variants

Empty

Batch contains no mutation.

TooManyMutations

Batch count is zero-bounded, excessive, or unrepresentable.

WrongRootKind

Root object has the wrong class.

InvalidLimits

Page width/height cannot support a persistent tree.

PageItemTooLarge

One encoded binding cannot fit under the page byte bound.

HeightExceeded

Traversal or root growth exceeds the page-height bound.

CycleOrAlias

Authenticated page graph cycles or aliases.

ChildBoundsMismatch

Parent routing bounds do not match a child page.

MutationContract

A private mutation implementation violated plan invariants.

AllocationFailed

Bounded scratch allocation could not be satisfied.

AlreadyExists

Insert expected an absent name.

Missing

Remove/replace expected an existing name.

FileIdentityConflict

Existing file identity differs from the mutation precondition.

Storage(ObjectStoreError)

Immutable object storage failed.

Decode(CanonicalDecodeError)

Canonical page encoding/decoding failed.

Work(WorkError)

Exact work exceeded or overflowed its budget.

Trait Implementations

impl Debug for TreeMutationError

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

Formats the value using the given formatter.

impl Display for TreeMutationError

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

Formats the value using the given formatter.

impl Error for TreeMutationError

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 TreeMutationError

fn from(source: CanonicalDecodeError) -> Self

Converts to this type from the input type.

impl From<ObjectStoreError> for TreeMutationError

fn from(source: ObjectStoreError) -> Self

Converts to this type from the input type.

impl From<TreeMutationError> for FsError

fn from(source: TreeMutationError) -> Self

Converts to this type from the input type.

impl From<TreeMutationError> for GenerationMutationError

fn from(source: TreeMutationError) -> Self

Converts to this type from the input type.

impl From<TreeMutationError> for MergeGenerationError

fn from(source: TreeMutationError) -> Self

Converts to this type from the input type.

impl From<WorkError> for TreeMutationError

fn from(source: WorkError) -> Self

Converts to this type from the input type.