Enum MigrationError 

pub enum MigrationError {
    NoPath {
        from: u32,
        to: u32,
    },
    StepFailed {
        from: u32,
        to: u32,
        reason: String,
    },
    GapInChain {
        missing: u32,
    },
    FutureVersion {
        found: u32,
        current: u32,
    },
    Deserialization(String),
    Serialization(String),
}

Error during migration.

Variants

NoPath

No migration path exists between the source and target versions.

Fields

from: u32

to: u32

StepFailed

A migration step failed.

Fields

from: u32

to: u32

reason: String

GapInChain

The version chain has a gap (e.g., v1→v3 without v2).

Fields

missing: u32

FutureVersion

The source version is newer than the current version (forward compat).

Fields

found: u32

current: u32

Deserialization(String)

Deserialization failed.

Serialization(String)

Serialization failed.

Trait Implementations

impl Clone for MigrationError

fn clone(&self) -> MigrationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationError

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

Formats the value using the given formatter.

impl Display for MigrationError

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

Formats the value using the given formatter.

impl PartialEq for MigrationError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MigrationError