Trait Signer 

pub trait Signer<AccountId, Lookup> {
    // Required method
    fn signer(&self, lookup: &Lookup) -> Option<AccountId>;
}

Extracts the signer from an unchecked extrinsic.

Used by executor to extract the optional signer when shuffling the extrinsics.

Required Methods

fn signer(&self, lookup: &Lookup) -> Option<AccountId>

Returns the AccountId of signer.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<Address, AccountId, Call, Signature, Extra, Lookup> Signer<AccountId, Lookup> for UncheckedExtrinsic<Address, Call, Signature, Extra>

where Address: Clone, Call: Dispatchable, Extra: TransactionExtension<Call>, Lookup: Lookup<Source = Address, Target = AccountId>,

fn signer(&self, lookup: &Lookup) -> Option<AccountId>

Implementors