Trait frame_support::traits::UncheckedOnRuntimeUpgrade

pub trait UncheckedOnRuntimeUpgrade {
    // Provided methods
    fn on_runtime_upgrade() -> Weight { ... }
    fn pre_upgrade() -> Result<Vec<u8>, TryRuntimeError> { ... }
    fn post_upgrade(_state: Vec<u8>) -> Result<(), TryRuntimeError> { ... }
}

This trait is intended for use within VersionedMigration to execute storage migrations without automatic version checks. Implementations should ensure migration logic is safe and idempotent.

Provided Methods

fn on_runtime_upgrade() -> Weight

Called within VersionedMigration to execute the actual migration. It is also expected that no version checks are performed within this function.

See also Hooks::on_runtime_upgrade.

fn pre_upgrade() -> Result<Vec<u8>, TryRuntimeError>

See Hooks::pre_upgrade.

fn post_upgrade(_state: Vec<u8>) -> Result<(), TryRuntimeError>

See Hooks::post_upgrade.

Object Safety

This trait is not object safe.

Implementors