Struct polkadot_sdk_frame::prelude::frame_system::CheckEra

pub struct CheckEra<T>(pub Era, _)
where
    T: Config + Send + Sync;

Check for transaction mortality.

The extension adds [Era] to every signed extrinsic. It also contributes to the signed data, by including the hash of the block at [Era::birth].

Transaction Validity

The extension affects longevity of the transaction according to the [Era] definition.

Tuple Fields

0: Era

Implementations

impl<T> CheckMortality<T>

where T: Config + Send + Sync,

pub fn from(era: Era) -> CheckMortality<T>

utility constructor. Used only in client/factory code.

Trait Implementations

impl<T> Clone for CheckMortality<T>

where T: Clone + Config + Send + Sync,

fn clone(&self) -> CheckMortality<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for CheckMortality<T>

where T: Config + Send + Sync,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> Decode for CheckMortality<T>

where T: Config + Send + Sync, PhantomData<T>: Decode,

fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<CheckMortality<T>, Error>

where __CodecInputEdqy: Input,

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<T> Encode for CheckMortality<T>

where T: Config + Send + Sync, PhantomData<T>: Encode,

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

where __CodecOutputEdqy: Output + ?Sized,

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<T> PartialEq for CheckMortality<T>

where T: PartialEq + Config + Send + Sync,

fn eq(&self, other: &CheckMortality<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> TransactionExtension<<T as Config>::RuntimeCall> for CheckMortality<T>

where T: Config + Send + Sync,

const IDENTIFIER: &'static str = "CheckMortality"

Unique identifier of this signed extension.

type Implicit = <T as Config>::Hash

Any additional data which was known at the time of transaction construction and can be useful in authenticating the transaction. This is determined dynamically in part from the on-chain environment using the implicit function and not directly contained in the transaction itself and therefore is considered “implicit”.

fn implicit( &self, ) -> Result<<CheckMortality<T> as TransactionExtension<<T as Config>::RuntimeCall>>::Implicit, TransactionValidityError>

Determine any additional data which was known at the time of transaction construction and can be useful in authenticating the transaction. The expected usage of this is to include in any data which is signed and verified as part of transaction validation. Also perform any pre-signature-verification checks and return an error if needed.

type Pre = ()

The type that encodes information that can be passed from prepare to post_dispatch.

type Val = ()

The type that encodes information that can be passed from validate to prepare.

fn weight(&self, _: &<T as Config>::RuntimeCall) -> Weight

The weight consumed by executing this extension instance fully during transaction dispatch.

fn validate( &self, origin: <T as Config>::RuntimeOrigin, _call: &<T as Config>::RuntimeCall, _info: &<<T as Config>::RuntimeCall as Dispatchable>::Info, _len: usize, _self_implicit: <CheckMortality<T> as TransactionExtension<<T as Config>::RuntimeCall>>::Implicit, _inherited_implication: &impl Encode, _source: TransactionSource, ) -> Result<(ValidTransaction, <CheckMortality<T> as TransactionExtension<<T as Config>::RuntimeCall>>::Val, <<T as Config>::RuntimeCall as Dispatchable>::RuntimeOrigin), TransactionValidityError>

Validate a transaction for the transaction queue.

fn prepare( self, _val: <CheckMortality<T> as TransactionExtension<<T as Config>::RuntimeCall>>::Val, _origin: &<<T as Config>::RuntimeCall as Dispatchable>::RuntimeOrigin, _call: &<T as Config>::RuntimeCall, _info: &<<T as Config>::RuntimeCall as Dispatchable>::Info, _len: usize, ) -> Result<<CheckMortality<T> as TransactionExtension<<T as Config>::RuntimeCall>>::Pre, TransactionValidityError>

Do any pre-flight stuff for a transaction after validation.

fn metadata() -> Vec<TransactionExtensionMetadata>

Returns the metadata for this extension.

fn post_dispatch_details( _pre: Self::Pre, _info: &<Call as Dispatchable>::Info, _post_info: &<Call as Dispatchable>::PostInfo, _len: usize, _result: &Result<(), DispatchError>, ) -> Result<Weight, TransactionValidityError>

Do any post-flight stuff for an extrinsic.

fn post_dispatch( pre: Self::Pre, info: &<Call as Dispatchable>::Info, post_info: &mut <Call as Dispatchable>::PostInfo, len: usize, result: &Result<(), DispatchError>, ) -> Result<(), TransactionValidityError>

A wrapper for post_dispatch_details that refunds the unspent weight consumed by this extension into the post dispatch information.

fn bare_validate( _call: &Call, _info: &<Call as Dispatchable>::Info, _len: usize, ) -> Result<ValidTransaction, TransactionValidityError>

Validation logic for bare extrinsics.

fn bare_validate_and_prepare( _call: &Call, _info: &<Call as Dispatchable>::Info, _len: usize, ) -> Result<(), TransactionValidityError>

All pre-flight logic run before dispatching bare extrinsics.

fn bare_post_dispatch( _info: &<Call as Dispatchable>::Info, _post_info: &mut <Call as Dispatchable>::PostInfo, _len: usize, _result: &Result<(), DispatchError>, ) -> Result<(), TransactionValidityError>

Post dispatch logic run after dispatching bare extrinsics.

impl<T> TypeInfo for CheckMortality<T>

where T: Config + Send + Sync + 'static, PhantomData<T>: TypeInfo + 'static,

type Identity = CheckMortality<T>

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl<T> EncodeLike for CheckMortality<T>

where T: Config + Send + Sync, PhantomData<T>: Encode,

impl<T> Eq for CheckMortality<T>

where T: Eq + Config + Send + Sync,

impl<T> StructuralPartialEq for CheckMortality<T>

where T: Config + Send + Sync,