pub struct CheckGenesis<T: Config + Send + Sync>(/* private fields */);
Expand description

Genesis hash check to provide replay protection between different networks.

§Transaction Validity

Note that while a transaction with invalid genesis_hash will fail to be decoded, the extension does not affect any other fields of TransactionValidity directly.

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impl<T: Config + Send + Sync> CheckGenesis<T>

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pub fn new() -> Self

Creates new SignedExtension to check genesis hash.

Trait Implementations§

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impl<T: Clone + Config + Send + Sync> Clone for CheckGenesis<T>

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

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Config + Send + Sync> Debug for CheckGenesis<T>

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

Formats the value using the given formatter. Read more
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impl<T: Config + Send + Sync> Decode for CheckGenesis<T>
where PhantomData<T>: Decode,

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fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Self, Error>

Attempt to deserialise the value from input.
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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. Read more
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fn skip<I>(input: &mut I) -> Result<(), Error>
where I: Input,

Attempt to skip the encoded value from input. Read more
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fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more
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impl<T: Config + Send + Sync> Encode for CheckGenesis<T>
where PhantomData<T>: Encode,

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )

Convert self to a slice and append it to the destination.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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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.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl<T: PartialEq + Config + Send + Sync> PartialEq for CheckGenesis<T>

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

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl<T: Config + Send + Sync> SignedExtension for CheckGenesis<T>

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type AccountId = <T as Config>::AccountId

The type which encodes the sender identity.
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type Call = <T as Config>::RuntimeCall

The type which encodes the call to be dispatched.
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type AdditionalSigned = <T as Config>::Hash

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

The type that encodes information that can be passed from pre_dispatch to post-dispatch.
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const IDENTIFIER: &'static str = "CheckGenesis"

Unique identifier of this signed extension. Read more
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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.
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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. Read more
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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. Read more
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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. Read more
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fn pre_dispatch_unsigned( call: &Self::Call, info: &<Self::Call as Dispatchable>::Info, len: usize ) -> Result<(), TransactionValidityError>

Do any pre-flight stuff for a unsigned transaction. Read more
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fn post_dispatch( _pre: Option<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. Read more
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fn metadata() -> Vec<SignedExtensionMetadata>

Returns the metadata for this signed extension. Read more
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impl<T> TypeInfo for CheckGenesis<T>
where PhantomData<T>: TypeInfo + 'static, T: Config + Send + Sync + 'static,

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type Identity = CheckGenesis<T>

The type identifying for which type info is provided. Read more
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fn type_info() -> Type

Returns the static type identifier for Self.
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impl<T: Config + Send + Sync> EncodeLike for CheckGenesis<T>
where PhantomData<T>: Encode,

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impl<T: Eq + Config + Send + Sync> Eq for CheckGenesis<T>

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impl<T: Config + Send + Sync> StructuralPartialEq for CheckGenesis<T>

Auto Trait Implementations§

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impl<T> RefUnwindSafe for CheckGenesis<T>
where T: RefUnwindSafe,

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impl<T> Send for CheckGenesis<T>

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impl<T> Sync for CheckGenesis<T>

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impl<T> Unpin for CheckGenesis<T>
where T: Unpin,

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impl<T> UnwindSafe for CheckGenesis<T>
where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more
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Consume self to return Some equivalent value of Option<T>. Read more
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where Self: Into<T>,

Converts self into T using Into<T>. Read more
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where T: Decode,

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fn decode_all(input: &mut &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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where T: Decode,

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fn decode_all_with_depth_limit( limit: u32, input: &mut &[u8] ) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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fn decode_with_depth_limit<I>(limit: u32, input: &mut I) -> Result<T, Error>
where I: Input,

Decode Self with the given maximum recursion depth and advance input by the number of bytes consumed. Read more
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fn __clone_box(&self, _: Private) -> *mut ()

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Compare self to key and return true if they are equal.
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Causes self to use its Binary implementation when Debug-formatted.
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where &'a Self: for<'a> IntoIterator,

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fn from(t: T) -> T

Returns the argument unchanged.

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where T: Codec,

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