Trait ExtrinsicMetadata 

pub trait ExtrinsicMetadata {
    type SignedExtensions: SignedExtension;

    const VERSION: u8;
}

Implementor is an Extrinsic and provides metadata about this extrinsic.

Required Associated Constants

const VERSION: u8

The format version of the Extrinsic.

By format is meant the encoded representation of the Extrinsic.

Required Associated Types

type SignedExtensions: SignedExtension

Signed extensions attached to this Extrinsic.

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

impl<Address, Call, Signature, Extra> ExtrinsicMetadata for UncheckedExtrinsic<Address, Call, Signature, Extra>

where Extra: SignedExtension,

const VERSION: u8 = 4u8

type SignedExtensions = Extra

impl<Call, Extra> ExtrinsicMetadata for TestXt<Call, Extra>

where Call: Codec + Sync + Send, Extra: SignedExtension<AccountId = u64, Call = Call>,

const VERSION: u8 = 0u8

type SignedExtensions = Extra