Struct polkadot_primitives::v8::async_backing::Constraints

pub struct Constraints<N = BlockNumber> {

    pub min_relay_parent_number: N,
    pub max_pov_size: u32,
    pub max_code_size: u32,
    pub ump_remaining: u32,
    pub ump_remaining_bytes: u32,
    pub max_ump_num_per_candidate: u32,
    pub dmp_remaining_messages: Vec<N>,
    pub hrmp_inbound: InboundHrmpLimitations<N>,
    pub hrmp_channels_out: Vec<(Id, OutboundHrmpChannelLimitations)>,
    pub max_hrmp_num_per_candidate: u32,
    pub required_parent: HeadData,
    pub validation_code_hash: ValidationCodeHash,
    pub upgrade_restriction: Option<UpgradeRestriction>,
    pub future_validation_code: Option<(N, ValidationCodeHash)>,
}

Constraints on the actions that can be taken by a new parachain block. These limitations are implicitly associated with some particular parachain, which should be apparent from usage.

Fields

min_relay_parent_number: N

The minimum relay-parent number accepted under these constraints.

max_pov_size: u32

The maximum Proof-of-Validity size allowed, in bytes.

max_code_size: u32

The maximum new validation code size allowed, in bytes.

ump_remaining: u32

The amount of UMP messages remaining.

ump_remaining_bytes: u32

The amount of UMP bytes remaining.

max_ump_num_per_candidate: u32

The maximum number of UMP messages allowed per candidate.

dmp_remaining_messages: Vec<N>

Remaining DMP queue. Only includes sent-at block numbers.

hrmp_inbound: InboundHrmpLimitations<N>

The limitations of all registered inbound HRMP channels.

hrmp_channels_out: Vec<(Id, OutboundHrmpChannelLimitations)>

The limitations of all registered outbound HRMP channels.

max_hrmp_num_per_candidate: u32

The maximum number of HRMP messages allowed per candidate.

required_parent: HeadData

The required parent head-data of the parachain.

validation_code_hash: ValidationCodeHash

The expected validation-code-hash of this parachain.

upgrade_restriction: Option<UpgradeRestriction>

The code upgrade restriction signal as-of this parachain.

future_validation_code: Option<(N, ValidationCodeHash)>

The future validation code hash, if any, and at what relay-parent number the upgrade would be minimally applied.

Trait Implementations

impl<N: Clone> Clone for Constraints<N>

fn clone(&self) -> Constraints<N>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<N> Debug for Constraints<N>

where N: Debug,

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

Formats the value using the given formatter.

impl<N> Decode for Constraints<N>

where N: Decode, Vec<N>: Decode, InboundHrmpLimitations<N>: Decode, Option<(N, ValidationCodeHash)>: Decode,

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

Attempt to deserialise the value from input.

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.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<N> Encode for Constraints<N>

where N: Encode, Vec<N>: Encode, InboundHrmpLimitations<N>: Encode, Option<(N, ValidationCodeHash)>: Encode,

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<N: PartialEq> PartialEq for Constraints<N>

fn eq(&self, other: &Constraints<N>) -> bool

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

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.

impl<N> TypeInfo for Constraints<N>

where N: TypeInfo + 'static, Vec<N>: TypeInfo + 'static, InboundHrmpLimitations<N>: TypeInfo + 'static, Option<(N, ValidationCodeHash)>: TypeInfo + 'static,

type Identity = Constraints<N>

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl<N> EncodeLike for Constraints<N>

where N: Encode, Vec<N>: Encode, InboundHrmpLimitations<N>: Encode, Option<(N, ValidationCodeHash)>: Encode,

impl<N> StructuralPartialEq for Constraints<N>