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NamespaceError

Enum NamespaceError 

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pub enum NamespaceError {
Show 13 variants EmptyId { kind: &'static str, }, IllegalName(String), MissingDir(DirId), MissingCell(CellId), MissingDirRecord(DirId), NameCollision { parent: DirId, name: NamespaceName, }, MissingReservation { parent: DirId, name: NamespaceName, }, CounterCorruption { parent: DirId, kind: GeneratedNameKind, candidate: NamespaceName, }, WriterAlreadyActive, InvalidWriterLane, RootDirCannotMove, DirMoveCycle { dir: DirId, new_parent: DirId, }, DirNotEmpty(DirId),
}
Expand description

Typed failures for backend-neutral expression-tree namespace records.

Variants§

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EmptyId

An id constructor received empty text.

Fields

§kind: &'static str

The id family being constructed.

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IllegalName(String)

A child name is not legal as a canonical Table path segment.

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MissingDir(DirId)

A parent directory is unknown to this namespace.

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MissingCell(CellId)

A cell is unknown to this namespace.

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MissingDirRecord(DirId)

A directory is unknown to this namespace.

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NameCollision

A child name is already occupied under the parent directory.

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§parent: DirId

The parent directory containing the conflicting name.

§name: NamespaceName

The conflicting child name.

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MissingReservation

A cell record cannot be created without a durable name reservation.

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§parent: DirId

The parent directory for the requested create.

§name: NamespaceName

The child name that was not reserved.

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CounterCorruption

A recovered generated-name counter is behind durable namespace state.

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§parent: DirId

The parent directory whose counter is corrupt.

§kind: GeneratedNameKind

The generated-name family whose counter is corrupt.

§candidate: NamespaceName

The occupied candidate produced by the corrupt counter.

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WriterAlreadyActive

Another writer lane is already active.

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InvalidWriterLane

The caller supplied no valid writer lane.

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RootDirCannotMove

The root directory cannot be renamed or moved.

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DirMoveCycle

A directory cannot be moved below itself.

Fields

§dir: DirId

The directory being moved.

§new_parent: DirId

The requested new parent.

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DirNotEmpty(DirId)

A directory must be empty before it can be deleted.

Trait Implementations§

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impl Clone for NamespaceError

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fn clone(&self) -> NamespaceError

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for NamespaceError

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

Formats the value using the given formatter. Read more
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impl Eq for NamespaceError

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impl PartialEq for NamespaceError

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for NamespaceError

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.