#[non_exhaustive]
pub struct BlockImportParams<Block: BlockT, Transaction> {
Show 13 fields pub origin: BlockOrigin, pub header: Block::Header, pub justifications: Option<Justifications>, pub post_digests: Vec<DigestItem>, pub body: Option<Vec<Block::Extrinsic>>, pub indexed_body: Option<Vec<Vec<u8>>>, pub state_action: StateAction<Block, Transaction>, pub finalized: bool, pub intermediates: HashMap<Cow<'static, [u8]>, Box<dyn Any + Send>>, pub auxiliary: Vec<(Vec<u8>, Option<Vec<u8>>)>, pub fork_choice: Option<ForkChoiceStrategy>, pub import_existing: bool, pub post_hash: Option<Block::Hash>,
}
Expand description

Data required to import a Block.

Fields (Non-exhaustive)§

This struct is marked as non-exhaustive
Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.
§origin: BlockOrigin

Origin of the Block

§header: Block::Header

The header, without consensus post-digests applied. This should be in the same state as it comes out of the runtime.

Consensus engines which alter the header (by adding post-runtime digests) should strip those off in the initial verification process and pass them via the post_digests field. During block authorship, they should not be pushed to the header directly.

The reason for this distinction is so the header can be directly re-executed in a runtime that checks digest equivalence – the post-runtime digests are pushed back on after.

§justifications: Option<Justifications>

Justification(s) provided for this block from the outside.

§post_digests: Vec<DigestItem>

Digest items that have been added after the runtime for external work, like a consensus signature.

§body: Option<Vec<Block::Extrinsic>>

The body of the block.

§indexed_body: Option<Vec<Vec<u8>>>

Indexed transaction body of the block.

§state_action: StateAction<Block, Transaction>

Specify how the new state is computed.

§finalized: bool

Is this block finalized already? true implies instant finality.

§intermediates: HashMap<Cow<'static, [u8]>, Box<dyn Any + Send>>

Intermediate values that are interpreted by block importers. Each block importer, upon handling a value, removes it from the intermediate list. The final block importer rejects block import if there are still intermediate values that remain unhandled.

§auxiliary: Vec<(Vec<u8>, Option<Vec<u8>>)>

Auxiliary consensus data produced by the block. Contains a list of key-value pairs. If values are None, the keys will be deleted. These changes will be applied to AuxStore database all as one batch, which is more efficient than updating AuxStore directly.

§fork_choice: Option<ForkChoiceStrategy>

Fork choice strategy of this import. This should only be set by a synchronous import, otherwise it may race against other imports. None indicates that the current verifier or importer cannot yet determine the fork choice value, and it expects subsequent importer to modify it. If None is passed all the way down to bottom block importer, the import fails with an IncompletePipeline error.

§import_existing: bool

Re-validate existing block.

§post_hash: Option<Block::Hash>

Cached full header hash (with post-digests applied).

Implementations§

source§

impl<Block: BlockT, Transaction> BlockImportParams<Block, Transaction>

source

pub fn new(origin: BlockOrigin, header: Block::Header) -> Self

Create a new block import params.

source

pub fn post_hash(&self) -> Block::Hash

Get the full header hash (with post-digests applied).

source

pub fn post_header(&self) -> Block::Header

Get the post header.

source

pub fn clear_storage_changes_and_mutate<Transaction2>( self ) -> BlockImportParams<Block, Transaction2>

Auxiliary function for “converting” the transaction type.

Actually this just sets StorageChanges::Changes to None and makes rustc think that Self now uses a different transaction type.

source

pub fn insert_intermediate<T: 'static + Send>( &mut self, key: &'static [u8], value: T )

Insert intermediate by given key.

source

pub fn remove_intermediate<T: 'static>( &mut self, key: &[u8] ) -> Result<T, Error>

Remove and return intermediate by given key.

source

pub fn get_intermediate<T: 'static>(&self, key: &[u8]) -> Result<&T, Error>

Get a reference to a given intermediate.

source

pub fn get_intermediate_mut<T: 'static>( &mut self, key: &[u8] ) -> Result<&mut T, Error>

Get a mutable reference to a given intermediate.

source

pub fn with_state(&self) -> bool

Check if this block contains state import action

Auto Trait Implementations§

§

impl<Block, Transaction> !RefUnwindSafe for BlockImportParams<Block, Transaction>

§

impl<Block, Transaction> Send for BlockImportParams<Block, Transaction>where Transaction: Send,

§

impl<Block, Transaction> !Sync for BlockImportParams<Block, Transaction>

§

impl<Block, Transaction> Unpin for BlockImportParams<Block, Transaction>where Transaction: Unpin, <Block as Block>::Extrinsic: Unpin, <Block as Block>::Hash: Unpin, <Block as Block>::Header: Unpin,

§

impl<Block, Transaction> !UnwindSafe for BlockImportParams<Block, Transaction>

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Any for Twhere T: Any,

source§

fn into_any(self: Box<T, Global>) -> Box<dyn Any, Global>

source§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

source§

fn type_name(&self) -> &'static str

source§

impl<T> AnySync for Twhere T: Any + Send + Sync,

source§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

source§

impl<T> Borrow<T> for Twhere T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> CheckedConversion for T

source§

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
source§

fn checked_into<T>(self) -> Option<T>where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more
source§

impl<T> Conv for T

source§

fn conv<T>(self) -> Twhere Self: Into<T>,

Converts self into T using Into<T>. Read more
source§

impl<T> Downcast for Twhere T: Any,

source§

fn into_any(self: Box<T, Global>) -> Box<dyn Any, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
source§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
source§

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
source§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
source§

impl<T> DowncastSync for Twhere T: Any + Send + Sync,

source§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
source§

impl<T> FmtForward for T

source§

fn fmt_binary(self) -> FmtBinary<Self>where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
source§

fn fmt_display(self) -> FmtDisplay<Self>where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
source§

fn fmt_lower_exp(self) -> FmtLowerExp<Self>where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
source§

fn fmt_lower_hex(self) -> FmtLowerHex<Self>where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
source§

fn fmt_octal(self) -> FmtOctal<Self>where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
source§

fn fmt_pointer(self) -> FmtPointer<Self>where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
source§

fn fmt_upper_exp(self) -> FmtUpperExp<Self>where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
source§

fn fmt_upper_hex(self) -> FmtUpperHex<Self>where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
source§

fn fmt_list(self) -> FmtList<Self>where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for Twhere U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

source§

fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

source§

fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

source§

impl<T> Pipe for Twhere T: ?Sized,

source§

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
source§

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
source§

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
source§

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> Rwhere Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
source§

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R ) -> Rwhere Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
source§

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> Rwhere Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
source§

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> Rwhere Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
source§

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> Rwhere Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
source§

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R ) -> Rwhere Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
source§

impl<T> Pointable for T

source§

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
§

type Init = T

The type for initializers.
source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> Same<T> for T

§

type Output = T

Should always be Self
source§

impl<T> SaturatedConversion for T

source§

fn saturated_from<T>(t: T) -> Selfwhere Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more
source§

fn saturated_into<T>(self) -> Twhere Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
source§

impl<T> Tap for T

source§

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
source§

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
source§

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Selfwhere Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
source§

fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
source§

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Selfwhere Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
source§

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
source§

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Selfwhere Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
source§

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
source§

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
source§

fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
source§

fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Selfwhere Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
source§

fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
source§

fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Selfwhere Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
source§

fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
source§

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Selfwhere Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
source§

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
source§

impl<T> TryConv for T

source§

fn try_conv<T>(self) -> Result<T, Self::Error>where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

source§

fn unchecked_into(self) -> T

The counterpart to unchecked_from.
source§

impl<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,

source§

fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
source§

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

source§

fn vzip(self) -> V

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more