Enum UnknownReason 

#[non_exhaustive]
pub enum UnknownReason {
    ForwardVersion,
    WrongRecordType,
    UnknownSchema,
    Uninterpretable,
}

Why a record was preserved instead of interpreted.

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.

ForwardVersion

The tag names a LATER version of the record type that was asked for. The operator’s fix is a newer build.

WrongRecordType

The tag names a DIFFERENT record type in this protocol — an instance handed to the definition decoder, say. The fix is a routing correction, not an upgrade, and saying “forward version” would send someone looking for a release that will never help.

UnknownSchema

The tag is not one of this protocol’s at all: foreign data, or corruption that happened to leave a readable string.

Uninterpretable

The tag is ours, but the record does not fit the shape this build knows — most often a field we have no name for. Its requiredness is unknowable, so it is never interpreted.

Trait Implementations

impl Clone for UnknownReason

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for UnknownReason

impl Debug for UnknownReason

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

Formats the value using the given formatter.

impl Eq for UnknownReason

impl PartialEq for UnknownReason

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for UnknownReason