Struct AllocationDeclaration 

pub struct AllocationDeclaration { /* private fields */ }

AllocationDeclaration

Checked runtime claim that a stable key should own an allocation slot.

Declarations are supplied by the current binary before opening storage. Constructors validate the stable key, slot descriptor, label, and schema metadata, but a declaration is not authoritative until it has been validated against the recovered ledger and committed as part of a generation.

Implementations

impl AllocationDeclaration

pub fn new( stable_key: impl AsRef<str>, slot: AllocationSlotDescriptor, label: Option<String>, schema: SchemaMetadata, ) -> Result<Self, DeclarationSnapshotError>

Build a declaration from raw parts after validating diagnostic metadata.

pub fn memory_manager( stable_key: impl AsRef<str>, id: u8, label: impl Into<String>, ) -> Result<Self, DeclarationSnapshotError>

Build a MemoryManager declaration with a diagnostic label.

pub fn memory_manager_unlabeled( stable_key: impl AsRef<str>, id: u8, ) -> Result<Self, DeclarationSnapshotError>

Build an unlabeled MemoryManager declaration.

pub fn memory_manager_with_schema( stable_key: impl AsRef<str>, id: u8, label: impl Into<String>, schema: SchemaMetadata, ) -> Result<Self, DeclarationSnapshotError>

Build a MemoryManager declaration with a diagnostic label and schema metadata.

pub fn memory_manager_unlabeled_with_schema( stable_key: impl AsRef<str>, id: u8, schema: SchemaMetadata, ) -> Result<Self, DeclarationSnapshotError>

Build an unlabeled MemoryManager declaration with schema metadata.

pub const fn stable_key(&self) -> &StableKey

Return the durable stable key claimed by this declaration.

pub const fn slot(&self) -> &AllocationSlotDescriptor

Return the allocation slot claimed by this declaration.

pub fn label(&self) -> Option<&str>

Return the optional diagnostic label.

pub const fn schema(&self) -> &SchemaMetadata

Return the optional schema metadata.

Trait Implementations

impl Clone for AllocationDeclaration

fn clone(&self) -> AllocationDeclaration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AllocationDeclaration

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AllocationDeclaration

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for AllocationDeclaration

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for AllocationDeclaration

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for AllocationDeclaration

impl StructuralPartialEq for AllocationDeclaration