Struct Instance

pub struct Instance {
    pub discriminator: [u8; 8],
    pub components: BTreeMap<Component, ComponentValue>,
    pub nonce: u64,
    pub instance_authority: Pubkey,
    pub bump: u8,
}

Fields

discriminator: [u8; 8]

Identifier for this specific structure

components: BTreeMap<Component, ComponentValue>

Source of truth for what the values of the components are

nonce: u64

Nonce to allow multiple Instances

instance_authority: Pubkey

Instance authority who has access to state changing operations in this specific Instance

bump: u8

Canonical bump for Instances

Implementations

impl Instance

pub fn new( components: BTreeMap<Component, ComponentValue>, nonce: u64, instance_authority: Pubkey, bump: u8, ) -> Self

Create new Instance state

pub fn is_initialized(&self) -> bool

Is true if Instances is initialized

pub fn is_uninitialized(&self) -> bool

Is true if Instance is uninitialized

Trait Implementations

impl BorshDeserialize for Instance

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for Instance

fn serialize<__W: Write>(&self, writer: &mut __W) -> Result<(), Error>

impl Clone for Instance

fn clone(&self) -> Instance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Instance

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

Formats the value using the given formatter.

impl Default for Instance

fn default() -> Instance

Returns the “default value” for a type.

impl PartialEq for Instance

fn eq(&self, other: &Instance) -> 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 SplDiscriminate for Instance

const SPL_DISCRIMINATOR: ArrayDiscriminator

The 8-byte discriminator as a [u8; 8]

const SPL_DISCRIMINATOR_SLICE: &'static [u8] = _

The 8-byte discriminator as a slice (&[u8])

impl Eq for Instance

impl StructuralPartialEq for Instance