pub struct Pallet<T>(_);
Expand description

The pallet implementing the on-chain logic.

Implementations

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.

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.

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.

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.

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.

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.

The maximum code size permitted, in bytes.

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

The implementation of the runtime upgrade functionality for parachains.

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.

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.

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Returns the current storage version as supported by the pallet.
Returns the on-chain storage version of the pallet as stored in the storage.
Perform a module upgrade. Read more
The block is being finalized. Implement to have something happen.
The block is being initialized. Implement to have something happen. Read more
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
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
Run integrity test. Read more
Run integrity test. Read more
This function is being called after every block import (when fully synced). Read more
The block is being finalized. Implement to have something happen. Read more
Something that should happen at genesis.
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
The block is being initialized. Implement to have something happen. Read more
Perform a module upgrade. Read more
Index of the pallet as configured in the runtime.
Name of the pallet as configured in the runtime.
Name of the Rust module containing the pallet.
Version of the crate containing the pallet.
The number of pallets’ information that this type represents. Read more
All of the pallets’ information that this type represents.
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
The call type of the pallet.
The error returned by check_inherent.
The inherent identifier used by this inherent.
Create an inherent out of the given InherentData. Read more
Return whether the call is an inherent call. Read more
Determines whether this inherent is required in this block. Read more
Check whether the given inherent is valid. Checking the inherent is optional and can be omitted by using the default implementation. Read more
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
The call to validate
Return the validity of the call Read more
Validate the call right before dispatch. Read more
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

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
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Convert from a value of T into an equivalent instance of Option<Self>. Read more
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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. Read more
Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. 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
Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more
Compare self to key and return true if they are equal.
Checks if this value is equivalent to the given key. Read more
Causes self to use its Binary implementation when Debug-formatted. Read more
Causes self to use its Display implementation when Debug-formatted. Read more
Causes self to use its LowerExp implementation when Debug-formatted. Read more
Causes self to use its LowerHex implementation when Debug-formatted. Read more
Causes self to use its Octal implementation when Debug-formatted. Read more
Causes self to use its Pointer implementation when Debug-formatted. Read more
Causes self to use its UpperExp implementation when Debug-formatted. Read more
Causes self to use its UpperHex implementation when Debug-formatted. Read more
Formats each item in a sequence. Read more

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

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

Cast reference.
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Cast mutable reference.

Get a reference to the inner from the outer.

Get a mutable reference to the inner from the outer.

Pipes by value. This is generally the method you want to use. Read more
Borrows self and passes that borrow into the pipe function. Read more
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Mutably borrows self, then passes self.as_mut() into the pipe function. Read more
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Convert from a value of T into an equivalent instance of Self. Read more
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The inclusion map: converts self to the equivalent element of its superset.
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Calls .tap() only in debug builds, and is erased in release builds.
Calls .tap_mut() only in debug builds, and is erased in release builds. Read more
Calls .tap_borrow() only in debug builds, and is erased in release builds. Read more
Calls .tap_borrow_mut() only in debug builds, and is erased in release builds. Read more
Calls .tap_ref() only in debug builds, and is erased in release builds. Read more
Calls .tap_ref_mut() only in debug builds, and is erased in release builds. Read more
Calls .tap_deref() only in debug builds, and is erased in release builds. Read more
Calls .tap_deref_mut() only in debug builds, and is erased in release builds. Read more
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
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