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Struct polkadot_node_subsystem_util::inclusion_emulator::Constraints

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pub struct Constraints {
Show 14 fields
    pub min_relay_parent_number: BlockNumber,
    pub max_pov_size: usize,
    pub max_code_size: usize,
    pub ump_remaining: usize,
    pub ump_remaining_bytes: usize,
    pub max_ump_num_per_candidate: usize,
    pub dmp_remaining_messages: Vec<BlockNumber>,
    pub hrmp_inbound: InboundHrmpLimitations,
    pub hrmp_channels_out: HashMap<Id, OutboundHrmpChannelLimitations>,
    pub max_hrmp_num_per_candidate: usize,
    pub required_parent: HeadData,
    pub validation_code_hash: ValidationCodeHash,
    pub upgrade_restriction: Option<UpgradeRestriction>,
    pub future_validation_code: Option<(BlockNumber, ValidationCodeHash)>,

}
Expand description

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.

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§min_relay_parent_number: BlockNumber

The minimum relay-parent number accepted under these constraints.

§max_pov_size: usize

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

§max_code_size: usize

The maximum new validation code size allowed, in bytes.

§ump_remaining: usize

The amount of UMP messages remaining.

§ump_remaining_bytes: usize

The amount of UMP bytes remaining.

§max_ump_num_per_candidate: usize

The maximum number of UMP messages allowed per candidate.

§dmp_remaining_messages: Vec<BlockNumber>

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

§hrmp_inbound: InboundHrmpLimitations

The limitations of all registered inbound HRMP channels.

§hrmp_channels_out: HashMap<Id, OutboundHrmpChannelLimitations>

The limitations of all registered outbound HRMP channels.

§max_hrmp_num_per_candidate: usize

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<(BlockNumber, ValidationCodeHash)>

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

Implementations§

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impl Constraints

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pub fn check_modifications( &self, modifications: &ConstraintModifications, ) -> Result<(), ModificationError>

Check modifications against constraints.

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pub fn apply_modifications( &self, modifications: &ConstraintModifications, ) -> Result<Self, ModificationError>

Apply modifications to these constraints. If this succeeds, it passes all sanity-checks.

Trait Implementations§

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impl Clone for Constraints

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fn clone(&self) -> Constraints

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 Debug for Constraints

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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 From<Constraints> for Constraints

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fn from(c: PrimitiveConstraints) -> Self

Converts to this type from the input type.
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impl PartialEq for Constraints

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fn eq(&self, other: &Constraints) -> 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 StructuralPartialEq for Constraints

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