Trait DataSize

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pub trait DataSize {
    const IS_DYNAMIC: bool;
    const STATIC_HEAP_SIZE: usize;

    // Required method
    fn estimate_heap_size(&self) -> usize;

    // Provided method
    fn estimate_detailed_heap_size(&self) -> MemUsageNode { ... }
}

Expand description

Indicates that a type knows how to approximate its memory usage.

Required Associated Constants§

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const IS_DYNAMIC: bool

If true, the type has a heap size that can vary at runtime, depending on the actual value.

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const STATIC_HEAP_SIZE: usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound.

Required Methods§

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fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value.

Does not include data on the stack, which is usually determined using mem::size_of.

Provided Methods§

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fn estimate_detailed_heap_size(&self) -> MemUsageNode

Create a tree of memory estimations.

Similar to estimate_heap_size, but the returned value is a tree that typically reports memory used by structs individually.

Requires the detailed feature to be enabled.

Dyn Compatibility§

This trait is not dyn compatible.

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Trait DataSizeCopy item path

Required Associated Constants§

const IS_DYNAMIC: bool

const STATIC_HEAP_SIZE: usize

Required Methods§

fn estimate_heap_size(&self) -> usize

Provided Methods§

fn estimate_detailed_heap_size(&self) -> MemUsageNode

Dyn Compatibility§

Implementations on Foreign Types§

impl DataSize for IpAddr

const IS_DYNAMIC: bool = false

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for SocketAddr

const IS_DYNAMIC: bool = false

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for Error

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for ApprovalsHashesValidationErrorwhere Error: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntryPointAccesswhere Vec<Group>: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntryPointAddr

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntryPointPayment

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntryPointType

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntryPointValuewhere EntityEntryPoint: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for ContractRuntimeTag

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntityAddrwhere [u8; 32]: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntityKindwhere SystemEntityType: DataSize, AccountHash: DataSize, ContractRuntimeTag: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for EntityKindTag

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for BlockBodywhere BlockBodyV1: DataSize, BlockBodyV2: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for BlockGlobalAddr

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for BlockGlobalAddrTag

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for BlockHeaderwhere BlockHeaderV1: DataSize, BlockHeaderV2: DataSize,

const IS_DYNAMIC: bool = true

const STATIC_HEAP_SIZE: usize = 0usize

fn estimate_heap_size(&self) -> usize

impl DataSize for BlockSignatureswhere BlockSignaturesV1: DataSize, BlockSignaturesV2: DataSize,

const IS_DYNAMIC: bool = true

Trait DataSize

impl DataSize for ApprovalsHashesValidationError
where Error: DataSize,

impl DataSize for EntryPointAccess
where Vec<Group>: DataSize,

impl DataSize for EntryPointValue
where EntityEntryPoint: DataSize,

impl DataSize for EntityAddr
where [u8; 32]: DataSize,

impl DataSize for EntityKind
where SystemEntityType: DataSize, AccountHash: DataSize, ContractRuntimeTag: DataSize,

impl DataSize for BlockBody
where BlockBodyV1: DataSize, BlockBodyV2: DataSize,

impl DataSize for BlockHeader
where BlockHeaderV1: DataSize, BlockHeaderV2: DataSize,

impl DataSize for BlockSignatures
where BlockSignaturesV1: DataSize, BlockSignaturesV2: DataSize,

impl DataSize for Block
where BlockV1: DataSize, BlockV2: DataSize,

impl DataSize for BlockValidationError
where Error: DataSize,

impl DataSize for EraEnd
where EraEndV1: DataSize, EraEndV2: DataSize,

impl DataSize for FinalitySignature
where FinalitySignatureV1: DataSize, FinalitySignatureV2: DataSize,

impl DataSize for ByteCodeAddr
where [u8; 32]: DataSize,

impl DataSize for GenesisAccount
where AdministratorAccount: DataSize,

impl DataSize for ActivationPoint
where EraId: DataSize, Timestamp: DataSize,

impl DataSize for CLType
where u32: DataSize,