Trait frame_support::traits::OnRuntimeUpgrade[−][src]

pub trait OnRuntimeUpgrade {
    fn on_runtime_upgrade() -> Weight { ... }

    fn pre_upgrade() -> Result<(), &'static str> { ... }

    fn post_upgrade() -> Result<(), &'static str> { ... }
}
Expand description

The runtime upgrade trait.

Implementing this lets you express what should happen when the runtime upgrades, and changes may need to occur to your module.

Provided methods

Perform a module upgrade.

Warning

This function will be called before we initialized any runtime state, aka on_initialize wasn’t called yet. So, information like the block number and any other block local data are not accessible.

Return the non-negotiable weight consumed for runtime upgrade.

Execute some pre-checks prior to a runtime upgrade.

This hook is never meant to be executed on-chain but is meant to be used by testing tools.

Execute some post-checks after a runtime upgrade.

This hook is never meant to be executed on-chain but is meant to be used by testing tools.

Implementations on Foreign Types

Implementors