pub trait SignedExtension: Codec + Debug + Sync + Send + Clone + Eq + PartialEq + StaticTypeInfo {
    type AccountId;
    type Call: Dispatchable;
    type AdditionalSigned: Encode + TypeInfo;
    type Pre;

    const IDENTIFIER: &'static str;

    // Required methods
    fn additional_signed(
        &self
    ) -> Result<Self::AdditionalSigned, TransactionValidityError>;
    fn pre_dispatch(
        self,
        who: &Self::AccountId,
        call: &Self::Call,
        info: &DispatchInfoOf<Self::Call>,
        len: usize
    ) -> Result<Self::Pre, TransactionValidityError>;

    // Provided methods
    fn validate(
        &self,
        _who: &Self::AccountId,
        _call: &Self::Call,
        _info: &DispatchInfoOf<Self::Call>,
        _len: usize
    ) -> TransactionValidity { ... }
    fn validate_unsigned(
        _call: &Self::Call,
        _info: &DispatchInfoOf<Self::Call>,
        _len: usize
    ) -> TransactionValidity { ... }
    fn pre_dispatch_unsigned(
        call: &Self::Call,
        info: &DispatchInfoOf<Self::Call>,
        len: usize
    ) -> Result<(), TransactionValidityError> { ... }
    fn post_dispatch(
        _pre: Option<Self::Pre>,
        _info: &DispatchInfoOf<Self::Call>,
        _post_info: &PostDispatchInfoOf<Self::Call>,
        _len: usize,
        _result: &DispatchResult
    ) -> Result<(), TransactionValidityError> { ... }
    fn metadata() -> Vec<SignedExtensionMetadata> { ... }
}
Expand description

Means by which a transaction may be extended. This type embodies both the data and the logic that should be additionally associated with the transaction. It should be plain old data.

Required Associated Types§

source

type AccountId

The type which encodes the sender identity.

source

type Call: Dispatchable

The type which encodes the call to be dispatched.

source

type AdditionalSigned: Encode + TypeInfo

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

source

type Pre

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

Required Associated Constants§

source

const IDENTIFIER: &'static str

Unique identifier of this signed extension.

This will be exposed in the metadata to identify the signed extension used in an extrinsic.

Required Methods§

source

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.

source

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

Do any pre-flight stuff for a signed transaction.

Make sure to perform the same checks as in Self::validate.

Provided Methods§

source

fn validate( &self, _who: &Self::AccountId, _call: &Self::Call, _info: &DispatchInfoOf<Self::Call>, _len: usize ) -> TransactionValidity

Validate a signed transaction for the transaction queue.

This function can be called frequently by the transaction queue, to obtain transaction validity against current state. It should perform all checks that determine a valid transaction, that can pay for its execution and quickly eliminate ones that are stale or incorrect.

Make sure to perform the same checks in pre_dispatch function.

source

fn validate_unsigned( _call: &Self::Call, _info: &DispatchInfoOf<Self::Call>, _len: usize ) -> TransactionValidity

Validate an unsigned transaction for the transaction queue.

This function can be called frequently by the transaction queue to obtain transaction validity against current state. It should perform all checks that determine a valid unsigned transaction, and quickly eliminate ones that are stale or incorrect.

Make sure to perform the same checks in pre_dispatch_unsigned function.

source

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

Do any pre-flight stuff for a unsigned transaction.

Note this function by default delegates to validate_unsigned, so that all checks performed for the transaction queue are also performed during the dispatch phase (applying the extrinsic).

If you ever override this function, you need to make sure to always perform the same validation as in validate_unsigned.

source

fn post_dispatch( _pre: Option<Self::Pre>, _info: &DispatchInfoOf<Self::Call>, _post_info: &PostDispatchInfoOf<Self::Call>, _len: usize, _result: &DispatchResult ) -> Result<(), TransactionValidityError>

Do any post-flight stuff for an extrinsic.

If the transaction is signed, then _pre will contain the output of pre_dispatch, and None otherwise.

This gets given the DispatchResult _result from the extrinsic and can, if desired, introduce a TransactionValidityError, causing the block to become invalid for including it.

WARNING: It is dangerous to return an error here. To do so will fundamentally invalidate the transaction and any block that it is included in, causing the block author to not be compensated for their work in validating the transaction or producing the block so far.

It can only be used safely when you know that the extrinsic is one that can only be introduced by the current block author; generally this implies that it is an inherent and will come from either an offchain-worker or via InherentData.

source

fn metadata() -> Vec<SignedExtensionMetadata>

Returns the metadata for this signed extension.

As a SignedExtension can be a tuple of SignedExtensions we need to return a Vec that holds the metadata of each one. Each individual SignedExtension must return exactly one SignedExtensionMetadata.

This method provides a default implementation that returns a vec containing a single SignedExtensionMetadata.

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

source§

impl SignedExtension for ()

§

type AccountId = u64

§

type AdditionalSigned = ()

§

type Call = ()

§

type Pre = ()

source§

const IDENTIFIER: &'static str = "UnitSignedExtension"

source§

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

source§

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

source§

impl<AccountId, Call: Dispatchable, TupleElement0> SignedExtension for (TupleElement0,)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned,)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre,)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1> SignedExtension for (TupleElement0, TupleElement1)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2> SignedExtension for (TupleElement0, TupleElement1, TupleElement2)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement6: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned, <TupleElement6 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre, <TupleElement6 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement6: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement7: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned, <TupleElement6 as SignedExtension>::AdditionalSigned, <TupleElement7 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre, <TupleElement6 as SignedExtension>::Pre, <TupleElement7 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement6: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement7: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement8: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned, <TupleElement6 as SignedExtension>::AdditionalSigned, <TupleElement7 as SignedExtension>::AdditionalSigned, <TupleElement8 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre, <TupleElement6 as SignedExtension>::Pre, <TupleElement7 as SignedExtension>::Pre, <TupleElement8 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8, TupleElement9> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8, TupleElement9)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement6: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement7: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement8: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement9: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned, <TupleElement6 as SignedExtension>::AdditionalSigned, <TupleElement7 as SignedExtension>::AdditionalSigned, <TupleElement8 as SignedExtension>::AdditionalSigned, <TupleElement9 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre, <TupleElement6 as SignedExtension>::Pre, <TupleElement7 as SignedExtension>::Pre, <TupleElement8 as SignedExtension>::Pre, <TupleElement9 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8, TupleElement9, TupleElement10> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8, TupleElement9, TupleElement10)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement6: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement7: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement8: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement9: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement10: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned, <TupleElement6 as SignedExtension>::AdditionalSigned, <TupleElement7 as SignedExtension>::AdditionalSigned, <TupleElement8 as SignedExtension>::AdditionalSigned, <TupleElement9 as SignedExtension>::AdditionalSigned, <TupleElement10 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre, <TupleElement6 as SignedExtension>::Pre, <TupleElement7 as SignedExtension>::Pre, <TupleElement8 as SignedExtension>::Pre, <TupleElement9 as SignedExtension>::Pre, <TupleElement10 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

source§

impl<AccountId, Call: Dispatchable, TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8, TupleElement9, TupleElement10, TupleElement11> SignedExtension for (TupleElement0, TupleElement1, TupleElement2, TupleElement3, TupleElement4, TupleElement5, TupleElement6, TupleElement7, TupleElement8, TupleElement9, TupleElement10, TupleElement11)where TupleElement0: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement1: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement2: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement3: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement4: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement5: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement6: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement7: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement8: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement9: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement10: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension, TupleElement11: SignedExtension<AccountId = AccountId, Call = Call> + SignedExtension,

§

type AccountId = AccountId

§

type Call = Call

source§

const IDENTIFIER: &'static str = "You should call `identifier()`!"

§

type AdditionalSigned = (<TupleElement0 as SignedExtension>::AdditionalSigned, <TupleElement1 as SignedExtension>::AdditionalSigned, <TupleElement2 as SignedExtension>::AdditionalSigned, <TupleElement3 as SignedExtension>::AdditionalSigned, <TupleElement4 as SignedExtension>::AdditionalSigned, <TupleElement5 as SignedExtension>::AdditionalSigned, <TupleElement6 as SignedExtension>::AdditionalSigned, <TupleElement7 as SignedExtension>::AdditionalSigned, <TupleElement8 as SignedExtension>::AdditionalSigned, <TupleElement9 as SignedExtension>::AdditionalSigned, <TupleElement10 as SignedExtension>::AdditionalSigned, <TupleElement11 as SignedExtension>::AdditionalSigned)

§

type Pre = (<TupleElement0 as SignedExtension>::Pre, <TupleElement1 as SignedExtension>::Pre, <TupleElement2 as SignedExtension>::Pre, <TupleElement3 as SignedExtension>::Pre, <TupleElement4 as SignedExtension>::Pre, <TupleElement5 as SignedExtension>::Pre, <TupleElement6 as SignedExtension>::Pre, <TupleElement7 as SignedExtension>::Pre, <TupleElement8 as SignedExtension>::Pre, <TupleElement9 as SignedExtension>::Pre, <TupleElement10 as SignedExtension>::Pre, <TupleElement11 as SignedExtension>::Pre)

source§

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

source§

fn validate( &self, who: &Self::AccountId, call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

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

source§

fn validate_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> TransactionValidity

source§

fn pre_dispatch_unsigned( call: &Self::Call, info: &DispatchInfoOf<Self::Call>, len: usize ) -> Result<(), TransactionValidityError>

source§

fn post_dispatch( pre: Option<Self::Pre>, info: &DispatchInfoOf<Self::Call>, post_info: &PostDispatchInfoOf<Self::Call>, len: usize, result: &DispatchResult ) -> Result<(), TransactionValidityError>

source§

fn metadata() -> Vec<SignedExtensionMetadata>

Implementors§