Struct cumulus_pallet_parachain_system::pallet::Pallet

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pub struct Pallet<T>(_);

Expand description

The pallet implementing the on-chain logic.

Implementations

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impl<T: Config> Pallet<T>

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pub fn set_validation_data(
origin: OriginFor<T>,
data: ParachainInherentData
) -> DispatchResultWithPostInfo

Set the current validation data.

This should be invoked exactly once per block. It will panic at the finalization phase if the call was not invoked.

The dispatch origin for this call must be Inherent

As a side effect, this function upgrades the current validation function if the appropriate time has come.

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pub fn sudo_send_upward_message(
origin: OriginFor<T>,
message: UpwardMessage
) -> DispatchResult

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pub fn authorize_upgrade(
origin: OriginFor<T>,
code_hash: T::Hash
) -> DispatchResult

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pub fn enact_authorized_upgrade(
_: OriginFor<T>,
code: Vec<u8>
) -> DispatchResultWithPostInfo

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impl<T: Config> Pallet<T>

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pub fn new_validation_function() -> Vec<u8>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

In case of a scheduled upgrade, this storage field contains the validation code to be applied.

As soon as the relay chain gives us the go-ahead signal, we will overwrite the :code which will result the next block process with the new validation code. This concludes the upgrade process.

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impl<T: Config> Pallet<T>

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pub fn validation_data() -> Option<PersistedValidationData>

The [PersistedValidationData] set for this block. This value is expected to be set only once per block and it’s never stored in the trie.

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impl<T: Config> Pallet<T>

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pub fn relay_state_proof() -> Option<StorageProof>

The state proof for the last relay parent block.

This field is meant to be updated each block with the validation data inherent. Therefore, before processing of the inherent, e.g. in on_initialize this data may be stale.

This data is also absent from the genesis.

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impl<T: Config> Pallet<T>

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pub fn relevant_messaging_state() -> Option<MessagingStateSnapshot>

The snapshot of some state related to messaging relevant to the current parachain as per the relay parent.

This field is meant to be updated each block with the validation data inherent. Therefore, before processing of the inherent, e.g. in on_initialize this data may be stale.

This data is also absent from the genesis.

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impl<T: Config> Pallet<T>

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pub fn host_configuration() -> Option<AbridgedHostConfiguration>

The parachain host configuration that was obtained from the relay parent.

This field is meant to be updated each block with the validation data inherent. Therefore, before processing of the inherent, e.g. in on_initialize this data may be stale.

This data is also absent from the genesis.

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impl<T: Config> Pallet<T>

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pub fn max_code_size() -> Option<u32>

The maximum code size permitted, in bytes.

Returns None if the relay chain parachain host configuration hasn’t been submitted yet.

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pub fn schedule_code_upgrade(validation_function: Vec<u8>) -> DispatchResult

The implementation of the runtime upgrade functionality for parachains.

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pub fn collect_collation_info(header: &T::Header) -> CollationInfo

Returns the CollationInfo of the current active block.

The given header is the header of the built block we are collecting the collation info for.

This is expected to be used by the CollectCollationInfo runtime api.

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pub fn set_custom_validation_head_data(head_data: Vec<u8>)

Set a custom head data that should be returned as result of validate_block.

This will overwrite the head data that is returned as result of validate_block while validating a PoV on the relay chain. Normally the head data that is being returned by validate_block is the header of the block that is validated, thus it can be enacted as the new best block. However, for features like forking it can be useful to overwrite the head data with a custom header.

Attention

This should only be used when you are sure what you are doing as this can brick your Parachain.

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impl<T: Config> Pallet<T>

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pub fn send_upward_message(
message: UpwardMessage
) -> Result<(u32, XcmHash), MessageSendError>

Trait Implementations

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impl<T: Config> Callable<T> for Pallet<T>

type RuntimeCall = Call<T>

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impl<T> Clone for Pallet<T>

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fn clone(&self) -> Self

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> Debug for Pallet<T>

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

Formats the value using the given formatter. Read more

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fn current_storage_version() -> StorageVersion

Returns the current storage version as supported by the pallet.

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fn on_chain_storage_version() -> StorageVersion

Returns the on-chain storage version of the pallet as stored in the storage.

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impl<T: Config> Hooks<<T as Config>::BlockNumber> for Pallet<T>

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fn on_runtime_upgrade() -> Weight

Perform a module upgrade. Read more

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fn on_finalize(_: T::BlockNumber)

The block is being finalized. Implement to have something happen.

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fn on_initialize(_n: T::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen. Read more

fn on_idle(_n: BlockNumber, _remaining_weight: Weight) -> Weight

This will be run when the block is being finalized (before on_finalize). Implement to have something happen using the remaining weight. Will not fire if the remaining weight is 0. Return the weight used, the hook will subtract it from current weight used and pass the result to the next on_idle hook if it exists. Read more

fn offchain_worker(_n: BlockNumber)

Implementing this function on a module allows you to perform long-running tasks that make (by default) validators generate transactions that feed results of those long-running computations back on chain. Read more

fn integrity_test()

Run integrity test. Read more

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impl<T: Config> IntegrityTest for Pallet<T>

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fn integrity_test()

Run integrity test. Read more

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impl<T: Config> OffchainWorker<<T as Config>::BlockNumber> for Pallet<T>

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fn offchain_worker(n: <T as Config>::BlockNumber)

This function is being called after every block import (when fully synced). Read more

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impl<T: Config> OnFinalize<<T as Config>::BlockNumber> for Pallet<T>

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fn on_finalize(n: <T as Config>::BlockNumber)

The block is being finalized. Implement to have something happen. Read more

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impl<T: Config> OnGenesis for Pallet<T>

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fn on_genesis()

Something that should happen at genesis.

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impl<T: Config> OnIdle<<T as Config>::BlockNumber> for Pallet<T>

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fn on_idle(n: <T as Config>::BlockNumber, remaining_weight: Weight) -> Weight

The block is being finalized. Implement to have something happen in case there is leftover weight. Check the passed remaining_weight to make sure it is high enough to allow for your pallet’s extra computation. Read more

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impl<T: Config> OnInitialize<<T as Config>::BlockNumber> for Pallet<T>

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fn on_initialize(n: <T as Config>::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen. Read more

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impl<T: Config> OnRuntimeUpgrade for Pallet<T>

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fn on_runtime_upgrade() -> Weight

Perform a module upgrade. Read more

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impl<T: Config> PalletInfoAccess for Pallet<T>

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fn index() -> usize

Index of the pallet as configured in the runtime.

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fn name() -> &'static str

Name of the pallet as configured in the runtime.

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fn module_name() -> &'static str

Name of the Rust module containing the pallet.

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fn crate_version() -> CrateVersion

Version of the crate containing the pallet.

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impl<T: Config> PalletsInfoAccess for Pallet<T>

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fn count() -> usize

The number of pallets’ information that this type represents. Read more

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fn infos() -> Vec<PalletInfoData>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

All of the pallets’ information that this type represents.

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impl<T> PartialEq<Pallet<T>> for Pallet<T>

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fn eq(&self, other: &Self) -> bool

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

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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. Read more

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impl<T: Config> ProvideInherent for Pallet<T>

type Call = Call<T>

The call type of the pallet.

type Error = MakeFatalError<()>

The error returned by check_inherent.

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const INHERENT_IDENTIFIER: InherentIdentifier = cumulus_primitives_parachain_inherent::INHERENT_IDENTIFIER

The inherent identifier used by this inherent.

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fn create_inherent(data: &InherentData) -> Option<Self::Call>

Create an inherent out of the given InherentData. Read more

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fn is_inherent(call: &Self::Call) -> bool

Return whether the call is an inherent call. Read more

fn is_inherent_required(
&InherentData
) -> Result<Option<Self::Error>, Self::Error>

Determines whether this inherent is required in this block. Read more

fn check_inherent(&Self::Call, &InherentData) -> Result<(), Self::Error>

Check whether the given inherent is valid. Checking the inherent is optional and can be omitted by using the default implementation. Read more

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impl<T: Config> StorageInfoTrait for Pallet<T>

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fn storage_info() -> Vec<StorageInfo>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

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impl<T: Config> UpwardMessageSender for Pallet<T>

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fn send_upward_message(
message: UpwardMessage
) -> Result<(u32, XcmHash), MessageSendError>

Send the given UMP message; return the expected number of blocks before the message will be dispatched or an error if the message cannot be sent. return the hash of the message sent Read more

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impl<T: Config> ValidateUnsigned for Pallet<T>

type Call = Call<T>

The call to validate

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fn validate_unsigned(
_source: TransactionSource,
call: &Self::Call
) -> TransactionValidity

Return the validity of the call Read more

fn pre_dispatch(call: &Self::Call) -> Result<(), TransactionValidityError>

Validate the call right before dispatch. Read more

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impl<T: Config> WhitelistedStorageKeys for Pallet<T>

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fn whitelisted_storage_keys() -> Vec<TrackedStorageKey>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

Returns a Vec<TrackedStorageKey> indicating the storage keys that should be whitelisted during benchmarking. This means that those keys will be excluded from the benchmarking performance calculation. Read more

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impl<T> Eq for Pallet<T>

Auto Trait Implementations

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

impl<T> Send for Pallet<T>where
T: Send,

impl<T> Sync for Pallet<T>where
T: Sync,

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

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

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

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

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

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

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T: ?Sized,

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Immutably borrows from an owned value. Read more

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T: ?Sized,

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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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Self: TryInto<T>,

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

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Self: Into<T>,

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

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

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T: Any + Send + Sync,

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impl<T> DynClone for Twhere
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fn __clone_box(&self, Private) -> *mut ()

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Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

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

Causes self to use its Binary implementation when Debug-formatted. Read more

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Self: Display,

Causes self to use its Display implementation when Debug-formatted. Read more

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

Causes self to use its LowerExp implementation when Debug-formatted. Read more

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Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted. Read more

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Self: Octal,

Causes self to use its Octal implementation when Debug-formatted. Read more

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Self: Pointer,

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Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted. Read more

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Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted. Read more

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&'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more

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const: unstable · source

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Returns the argument unchanged.

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

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

const: unstable · source

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Calls U::from(self).

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

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Cast reference.

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Cast reference.

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Cast mutable reference.

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Cast mutable reference.

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

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

Get a reference to the inner from the outer.

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

Get a mutable reference to the inner from the outer.

impl<T> PalletVersionToStorageVersionHelper for Twhere
T: GetStorageVersion + PalletInfoAccess,

fn migrate(db_weight: &RuntimeDbWeight) -> Weight

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

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

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type Init = T

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

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

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impl<T> Same<T> for T

type Output = T

Should always be Self

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

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impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,

fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

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Checks if self is actually part of its subset T (and can be converted to it).

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Self: Deref<Target = T>,
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Self: DerefMut<Target = T> + Deref,
T: ?Sized,

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const: unstable · source

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Struct cumulus_pallet_parachain_system::pallet::Pallet

Implementations

impl<T: Config> Pallet<T>

pub fn set_validation_data( origin: OriginFor<T>, data: ParachainInherentData) -> DispatchResultWithPostInfo

pub fn sudo_send_upward_message( origin: OriginFor<T>, message: UpwardMessage) -> DispatchResult

pub fn authorize_upgrade( origin: OriginFor<T>, code_hash: T::Hash) -> DispatchResult

pub fn enact_authorized_upgrade( _: OriginFor<T>, code: Vec<u8>) -> DispatchResultWithPostInfo

impl<T: Config> Pallet<T>

pub fn new_validation_function() -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where A: Allocator,

impl<T: Config> Pallet<T>

pub fn validation_data() -> Option<PersistedValidationData>

impl<T: Config> Pallet<T>

pub fn relay_state_proof() -> Option<StorageProof>

impl<T: Config> Pallet<T>

pub fn relevant_messaging_state() -> Option<MessagingStateSnapshot>

impl<T: Config> Pallet<T>

pub fn host_configuration() -> Option<AbridgedHostConfiguration>

impl<T: Config> Pallet<T>

pub fn max_code_size() -> Option<u32>

pub fn schedule_code_upgrade(validation_function: Vec<u8>) -> DispatchResult

pub fn collect_collation_info(header: &T::Header) -> CollationInfo

pub fn set_custom_validation_head_data(head_data: Vec<u8>)

Attention

impl<T: Config> Pallet<T>

pub fn send_upward_message( message: UpwardMessage) -> Result<(u32, XcmHash), MessageSendError>

Trait Implementations

impl<T: Config> Callable<T> for Pallet<T>

type RuntimeCall = Call<T>

impl<T> Clone for Pallet<T>

fn clone(&self) -> Self

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

impl<T> Debug for Pallet<T>

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

impl<T: Config> GetChannelInfo for Pallet<T>

fn get_channel_status(id: ParaId) -> ChannelStatus

fn get_channel_max(id: ParaId) -> Option<usize>

impl<T: Config> GetStorageVersion for Pallet<T>

fn current_storage_version() -> StorageVersion

fn on_chain_storage_version() -> StorageVersion

impl<T: Config> Hooks<<T as Config>::BlockNumber> for Pallet<T>

fn on_runtime_upgrade() -> Weight

fn on_finalize(_: T::BlockNumber)

fn on_initialize(_n: T::BlockNumber) -> Weight

fn on_idle(_n: BlockNumber, _remaining_weight: Weight) -> Weight

fn offchain_worker(_n: BlockNumber)

fn integrity_test()

impl<T: Config> IntegrityTest for Pallet<T>

fn integrity_test()

impl<T: Config> OffchainWorker<<T as Config>::BlockNumber> for Pallet<T>

fn offchain_worker(n: <T as Config>::BlockNumber)

impl<T: Config> OnFinalize<<T as Config>::BlockNumber> for Pallet<T>

fn on_finalize(n: <T as Config>::BlockNumber)

impl<T: Config> OnGenesis for Pallet<T>

fn on_genesis()

impl<T: Config> OnIdle<<T as Config>::BlockNumber> for Pallet<T>

fn on_idle(n: <T as Config>::BlockNumber, remaining_weight: Weight) -> Weight

impl<T: Config> OnInitialize<<T as Config>::BlockNumber> for Pallet<T>

fn on_initialize(n: <T as Config>::BlockNumber) -> Weight

impl<T: Config> OnRuntimeUpgrade for Pallet<T>

fn on_runtime_upgrade() -> Weight

impl<T: Config> PalletInfoAccess for Pallet<T>

fn index() -> usize

fn name() -> &'static str

fn module_name() -> &'static str

fn crate_version() -> CrateVersion

impl<T: Config> PalletsInfoAccess for Pallet<T>

fn count() -> usize

fn infos() -> Vec<PalletInfoData>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where A: Allocator,

impl<T> PartialEq<Pallet<T>> for Pallet<T>

fn eq(&self, other: &Self) -> bool

fn ne(&self, other: &Rhs) -> bool

impl<T: Config> ProvideInherent for Pallet<T>

type Call = Call<T>

type Error = MakeFatalError<()>

const INHERENT_IDENTIFIER: InherentIdentifier = cumulus_primitives_parachain_inherent::INHERENT_IDENTIFIER

fn create_inherent(data: &InherentData) -> Option<Self::Call>

fn is_inherent(call: &Self::Call) -> bool

fn is_inherent_required( &InherentData) -> Result<Option<Self::Error>, Self::Error>

fn check_inherent(&Self::Call, &InherentData) -> Result<(), Self::Error>

impl<T: Config> StorageInfoTrait for Pallet<T>

pub fn set_validation_data(
origin: OriginFor<T>,
data: ParachainInherentData
) -> DispatchResultWithPostInfo

pub fn sudo_send_upward_message(
origin: OriginFor<T>,
message: UpwardMessage
) -> DispatchResult

pub fn authorize_upgrade(
origin: OriginFor<T>,
code_hash: T::Hash
) -> DispatchResult

pub fn enact_authorized_upgrade(
_: OriginFor<T>,
code: Vec<u8>
) -> DispatchResultWithPostInfo

pub fn new_validation_function() -> Vec<u8>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

pub fn send_upward_message(
message: UpwardMessage
) -> Result<(u32, XcmHash), MessageSendError>

fn infos() -> Vec<PalletInfoData>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

fn is_inherent_required(
&InherentData
) -> Result<Option<Self::Error>, Self::Error>

fn storage_info() -> Vec<StorageInfo>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

fn send_upward_message(
message: UpwardMessage
) -> Result<(u32, XcmHash), MessageSendError>

fn validate_unsigned(
_source: TransactionSource,
call: &Self::Call
) -> TransactionValidity

fn whitelisted_storage_keys() -> Vec<TrackedStorageKey>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

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

impl<T> Send for Pallet<T>where
T: Send,

impl<T> Sync for Pallet<T>where
T: Sync,

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

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

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

impl<T> Any for Twhere
T: Any,

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

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

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

fn checked_from<T>(t: T) -> Option<Self>where
Self: TryFrom<T>,

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

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

impl<T> Downcast for Twhere
T: Any,

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

impl<T> DynClone for Twhere
T: Clone,

impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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

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

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

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

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

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

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

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

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