Struct pchain_sdk::Callback

pub struct Callback { /* private fields */ }

A struct to store return value from an entrypoint

Implementations

impl Callback

pub fn from<T: BorshSerialize>(result: &T) -> Self

Convert Borsh-serializable structure to bytes

pub fn from_callback(bytes: Vec<u8>) -> Option<Vec<u8>>

Convert Borsh-serialized bytes to Callback and then return the field return_val as Option of bytes

pub fn return_value(&self)

Serialize the field return_val into bytes and save to transaction as return value

Trait Implementations

impl BorshDeserialize for Callback where
    Vec<u8>: BorshDeserialize, 

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.

impl BorshSerialize for Callback where
    Vec<u8>: BorshSerialize, 

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

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

Serialize this instance into a vector of bytes.

impl Default for Callback

fn default() -> Self

Returns the “default value” for a type.