Struct Versioned 

pub struct Versioned {
    pub id: UID,
    pub version: u64,
}

A wrapper type that supports versioning of the inner type. The inner type is a dynamic field of the Versioned object, and is keyed using version. User of this type could load the inner object using corresponding type based on the version. You can also upgrade the inner object to a new type version. If you want to support lazy upgrade of the inner type, one caveat is that all APIs would have to use mutable reference even if it’s a read-only API.

Fields

id: UID

version: u64

Implementations

impl Versioned

pub fn new(id: UID, version: u64) -> Self

Constructs a new Versioned.

impl Versioned

pub fn move_instance(self) -> MoveInstance<Self>

pub fn type_() -> VersionedTypeTag

Trait Implementations

impl Clone for Versioned

fn clone(&self) -> Versioned

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Versioned

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Versioned

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Versioned

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

Formats the value using the given formatter.

impl HasKey for Versioned

fn object_id(&self) -> Address

impl Hash for Versioned

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl MoveStruct for Versioned

type StructTag = VersionedTypeTag

impl MoveType for Versioned

type TypeTag = VersionedTypeTag

fn from_bcs(bytes: &[u8]) -> Result<Self, Error>

Deserialize the contents of the Move type from BCS bytes.

fn into_bcs(self) -> Result<Vec<u8>, Error>

Consuming version of to_bcs.

fn to_bcs(&self) -> Result<Vec<u8>, Error>

Serialize the contents of the Move type to BCS bytes.

fn into_json(self) -> Value

Consuming version of to_json.

fn to_json(&self) -> Value

Serialize the contents of the Move type to JSON.

impl PartialEq for Versioned

fn eq(&self, other: &Versioned) -> 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 Versioned

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StaticAddress for Versioned

fn address() -> Address

impl StaticModule for Versioned

fn module() -> Identifier

impl StaticName for Versioned

fn name() -> Identifier

impl StaticTypeParams for Versioned

fn type_params() -> Vec<TypeTag>

impl Tabled for Versioned

const LENGTH: usize = 2usize

A length of fields and headers, which must be the same.

fn fields(&self) -> Vec<Cow<'_, str>>

Fields method must return a list of cells.

fn headers() -> Vec<Cow<'static, str>>

Headers must return a list of column names.

impl Eq for Versioned

impl StructuralPartialEq for Versioned