Struct substrate_subxt::CheckVersion

pub struct CheckVersion<T: System>(pub PhantomData<T>, pub u32);

SignedExtra checks copied from substrate, in order to remove requirement to implement substrate's frame_system::Trait Ensure the runtime version registered in the transaction is the same as at present.

Note

This is modified from the substrate version to allow passing in of the version, which is returned via additional_signed().

Trait Implementations

impl<T: Clone + System> Clone for CheckVersion<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + System> Debug for CheckVersion<T>

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

Formats the value using the given formatter.

impl<T: System> Decode for CheckVersion<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: System> Encode for CheckVersion<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: System> EncodeLike<CheckVersion<T>> for CheckVersion<T> where
    PhantomData<T>: Encode,
    PhantomData<T>: Encode, 

impl<T: Eq + System> Eq for CheckVersion<T>

impl<T: PartialEq + System> PartialEq<CheckVersion<T>> for CheckVersion<T>

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

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

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

This method tests for !=.

impl<T> SignedExtension for CheckVersion<T> where
    T: System + Clone + Debug + Eq + Send + Sync, 

const IDENTIFIER: &'static str

Unique identifier of this signed extension.

type AccountId = u64

The type which encodes the sender identity.

type 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.

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: System> StructuralEq for CheckVersion<T>

impl<T: System> StructuralPartialEq for CheckVersion<T>