Struct EmptyAccount 

pub struct EmptyAccount<'a, 'info> { /* private fields */ }

Implementations

impl<'a, 'info> EmptyAccount<'a, 'info>

pub fn new( info: &'a AccountInfo<'info>, ) -> Result<EmptyAccount<'a, 'info>, ProgramError>

Methods from Deref<Target = AccountInfo<'info>>

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 unsafe fn original_data_len(&self) -> usize

Return the account’s original data length when it was serialized for the current program invocation.

Safety

This method assumes that the original data length was serialized as a u32 integer in the 4 bytes immediately preceding the serialized account key.

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>

👎Deprecated since 2.3.0: Use AccountInfo::resize() instead

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: zero_init being false will no longer be supported by the program runtime.

Safety

This method makes assumptions about the layout and location of memory referenced by AccountInfo fields. It should only be called for instances of AccountInfo that were created by the runtime and received in the process_instruction entrypoint of a program.

pub fn resize(&self, new_len: usize) -> Result<(), ProgramError>

Resize the account’s data: Either truncating or zero extending.

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

Safety

This method makes assumptions about the layout and location of memory referenced by AccountInfo fields. It should only be called for instances of AccountInfo that were created by the runtime and received in the process_instruction entrypoint of a program.

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

pub fn deserialize_data<T>(&self) -> Result<T, Box<ErrorKind>>

where T: DeserializeOwned,

pub fn serialize_data<T>(&self, state: &T) -> Result<(), Box<ErrorKind>>

where T: Serialize,

Trait Implementations

impl<'a, 'info> AsRef<AccountInfo<'info>> for EmptyAccount<'a, 'info>

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

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

impl<'a, 'info> Clone for EmptyAccount<'a, 'info>

fn clone(&self) -> EmptyAccount<'a, 'info>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, 'info> Deref for EmptyAccount<'a, 'info>

type Target = AccountInfo<'info>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.