Trait Migratable 

pub trait Migratable: Storable {
    // Required methods
    fn current_version() -> u32;
    fn migrate_from(version: u32, data: &[u8]) -> Result<Self>;
}

Trait for state that can be migrated between versions

Required Methods

fn current_version() -> u32

Current version of the state schema

fn migrate_from(version: u32, data: &[u8]) -> Result<Self>

Migrate from an older version

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors