Enum Mismatch 

pub enum Mismatch {
    Gap {
        expected: u64,
        found: u64,
    },
    Base {
        expected: u64,
        found: u64,
    },
    Result {
        expected: u64,
        found: u64,
    },
}

Why a delta could not be applied.

Every variant means the same thing operationally — this receiver cannot catch up from deltas and needs the whole value resent — but they say different things about what went wrong.

Variants

Gap

A delta was missed: this one was computed against a version that was never reached. The stream lost or reordered a message.

Fields

expected: u64

The version the receiver is at.

found: u64

The version the delta was computed against.

Base

The version lined up but the content did not, so the value drifted for a reason outside this stream — a direct mutation, a partly applied earlier delta, or two senders writing to one receiver.

Fields

expected: u64

The fingerprint the sender diffed against.

found: u64

The fingerprint the receiver actually holds.

Result

Applying the delta did not produce what the sender said it would. The two sides disagree about what the delta means: mismatched schema versions, or a bug.

Fields

expected: u64

The fingerprint the sender expected.

found: u64

The fingerprint applying actually produced.

Trait Implementations

impl Clone for Mismatch

fn clone(&self) -> Mismatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Mismatch

impl Debug for Mismatch

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

Formats the value using the given formatter.

impl Display for Mismatch

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

Formats the value using the given formatter.

impl Eq for Mismatch

impl Error for Mismatch

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 Mismatch

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Mismatch