Struct solana_program::account_info::AccountInfo

pub struct AccountInfo<'a> {
    pub key: &'a Pubkey,
    pub is_signer: bool,
    pub is_writable: bool,
    pub lamports: Rc<RefCell<&'a mut u64>>,
    pub data: Rc<RefCell<&'a mut [u8]>>,
    pub owner: &'a Pubkey,
    pub executable: bool,
    pub rent_epoch: Epoch,
}

Account information

Fields

key: &'a Pubkey

Public key of the account

is_signer: bool

Was the transaction signed by this account’s public key?

is_writable: bool

Is the account writable?

lamports: Rc<RefCell<&'a mut u64>>

The lamports in the account. Modifiable by programs.

data: Rc<RefCell<&'a mut [u8]>>

The data held in this account. Modifiable by programs.

owner: &'a Pubkey

Program that owns this account

executable: bool

This account’s data contains a loaded program (and is now read-only)

rent_epoch: Epoch

The epoch at which this account will next owe rent

Implementations

impl<'a> AccountInfo<'a>

pub fn signer_key(&self) -> Option<&Pubkey>

pub fn unsigned_key(&self) -> &Pubkey

pub fn lamports(&self) -> u64

pub fn try_lamports(&self) -> Result<u64, ProgramError>

pub fn data_len(&self) -> usize

pub fn try_data_len(&self) -> Result<usize, ProgramError>

pub fn data_is_empty(&self) -> bool

pub fn try_data_is_empty(&self) -> Result<bool, ProgramError>

pub fn try_borrow_lamports(&self) -> Result<Ref<'_, &mut u64>, ProgramError>

pub fn try_borrow_mut_lamports(
    &self
) -> Result<RefMut<'_, &'a mut u64>, ProgramError>

pub fn try_borrow_data(&self) -> Result<Ref<'_, &mut [u8]>, ProgramError>

pub fn try_borrow_mut_data(
    &self
) -> Result<RefMut<'_, &'a mut [u8]>, ProgramError>

pub fn realloc(
    &self,
    new_len: usize,
    zero_init: bool
) -> Result<(), ProgramError>

Realloc the account’s data and optionally zero-initialize the new memory.

Note: Account data can be increased within a single call by up to solana_program::entrypoint::MAX_PERMITTED_DATA_INCREASE bytes.

Note: Memory used to grow is already zero-initialized upon program entrypoint and re-zeroing it wastes compute units. If within the same call a program reallocs from larger to smaller and back to larger again the new space could contain stale data. Pass true for zero_init in this case, otherwise compute units will be wasted re-zero-initializing.

pub fn assign(&self, new_owner: &Pubkey)

pub fn new(
    key: &'a Pubkey,
    is_signer: bool,
    is_writable: bool,
    lamports: &'a mut u64,
    data: &'a mut [u8],
    owner: &'a Pubkey,
    executable: bool,
    rent_epoch: Epoch
) -> Self

pub fn deserialize_data<T: DeserializeOwned>(&self) -> Result<T, Error>

pub fn serialize_data<T: Serialize>(&self, state: &T) -> Result<(), Error>

Trait Implementations

impl<'a> AsRef<AccountInfo<'a>> for AccountInfo<'a>

fn as_ref(&self) -> &AccountInfo<'a>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a> Clone for AccountInfo<'a>

fn clone(&self) -> AccountInfo<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for AccountInfo<'a>

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

Formats the value using the given formatter.

impl<'a, T: IntoAccountInfo<'a>> From<T> for AccountInfo<'a>

fn from(src: T) -> Self

Converts to this type from the input type.