Struct frame_system::CheckTxVersion

pub struct CheckTxVersion<T: Trait + Send + Sync>(_);

Ensure the transaction version registered in the transaction is the same as at present.

Implementations

impl<T: Trait + Send + Sync> CheckTxVersion<T>

pub fn new() -> Self

Create new SignedExtension to check transaction version.

Trait Implementations

impl<T: Clone + Trait + Send + Sync> Clone for CheckTxVersion<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Trait + Send + Sync> Debug for CheckTxVersion<T>

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

Formats the value using the given formatter.

impl<T: Trait + Send + Sync> Decode for CheckTxVersion<T> where
    PhantomData<T>: Decode,
    PhantomData<T>: Decode, 

fn decode<DecIn: Input>(input: &mut DecIn) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl<T: Trait + Send + Sync> Encode for CheckTxVersion<T> where
    PhantomData<T>: Encode,
    PhantomData<T>: Encode, 

fn encode_to<EncOut: Output>(&self, dest: &mut EncOut)

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

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

fn size_hint(&self) -> usize

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

impl<T: Trait + Send + Sync> EncodeLike<CheckTxVersion<T>> for CheckTxVersion<T> where
    PhantomData<T>: Encode,
    PhantomData<T>: Encode, 

impl<T: Eq + Trait + Send + Sync> Eq for CheckTxVersion<T>

impl<T: PartialEq + Trait + Send + Sync> PartialEq<CheckTxVersion<T>> for CheckTxVersion<T>

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

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

fn ne(&self, other: &CheckTxVersion<T>) -> bool

This method tests for !=.

impl<T: Trait + Send + Sync> SignedExtension for CheckTxVersion<T>

type AccountId = T::AccountId

The type which encodes the sender identity.

type Call = <T as Trait>::Call

The type which encodes the call to be dispatched.

type AdditionalSigned = u32

Any additional data that will go into the signed payload. This may be created dynamically from the transaction using the additional_signed function.

type Pre = ()

The type that encodes information that can be passed from pre_dispatch to post-dispatch.

const IDENTIFIER: &'static str

Unique identifier of this signed extension.

fn additional_signed(
    &self
) -> Result<Self::AdditionalSigned, TransactionValidityError>

Construct any additional data that should be in the signed payload of the transaction. Can also perform any pre-signature-verification checks and return an error if needed.

fn validate(
    &self,
    _who: &Self::AccountId,
    _call: &Self::Call,
    _info: &<Self::Call as Dispatchable>::Info,
    _len: usize
) -> Result<ValidTransaction, TransactionValidityError>

Validate a signed transaction for the transaction queue.

fn pre_dispatch(
    self,
    who: &Self::AccountId,
    call: &Self::Call,
    info: &<Self::Call as Dispatchable>::Info,
    len: usize
) -> Result<Self::Pre, TransactionValidityError>

Do any pre-flight stuff for a signed transaction.

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

Validate an unsigned transaction for the transaction queue.

fn pre_dispatch_unsigned(
    call: &Self::Call,
    info: &<Self::Call as Dispatchable>::Info,
    len: usize
) -> Result<Self::Pre, TransactionValidityError>

Do any pre-flight stuff for a unsigned transaction.

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

Do any post-flight stuff for an extrinsic.

fn identifier() -> Vec<&'static str>

Returns the list of unique identifier for this signed extension.

impl<T: Trait + Send + Sync> StructuralEq for CheckTxVersion<T>

impl<T: Trait + Send + Sync> StructuralPartialEq for CheckTxVersion<T>