Trait WritableAccount 

pub trait WritableAccount: ReadableAccount {
    // Required methods
    fn set_lamports(&mut self, lamports: u64);
    fn data_as_mut_slice(&mut self) -> &mut [u8] ;
    fn set_owner(&mut self, owner: Pubkey);
    fn copy_into_owner_from_slice(&mut self, source: &[u8]);
    fn set_executable(&mut self, executable: bool);
    fn set_rent_epoch(&mut self, epoch: Epoch);

    // Provided methods
    fn checked_add_lamports(
        &mut self,
        lamports: u64,
    ) -> Result<(), LamportsError> { ... }
    fn checked_sub_lamports(
        &mut self,
        lamports: u64,
    ) -> Result<(), LamportsError> { ... }
    fn saturating_add_lamports(&mut self, lamports: u64) { ... }
    fn saturating_sub_lamports(&mut self, lamports: u64) { ... }
}

Writable access to account state.

Required Methods

fn set_lamports(&mut self, lamports: u64)

Replaces the lamport balance.

fn data_as_mut_slice(&mut self) -> &mut [u8]

Returns mutable access to the account data.

fn set_owner(&mut self, owner: Pubkey)

Replaces the owner.

fn copy_into_owner_from_slice(&mut self, source: &[u8])

Copies 32 raw bytes into the owner pubkey.

fn set_executable(&mut self, executable: bool)

Sets the executable flag.

fn set_rent_epoch(&mut self, epoch: Epoch)

Sets the rent epoch view if the implementation stores one.

Implementations that do not store rent epoch may ignore this.

Provided Methods

fn checked_add_lamports(&mut self, lamports: u64) -> Result<(), LamportsError>

Adds lamports or returns an overflow error.

fn checked_sub_lamports(&mut self, lamports: u64) -> Result<(), LamportsError>

Subtracts lamports or returns an underflow error.

fn saturating_add_lamports(&mut self, lamports: u64)

Adds lamports and saturates on overflow.

fn saturating_sub_lamports(&mut self, lamports: u64)

Subtracts lamports and saturates on underflow.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl WritableAccount for Account

impl WritableAccount for AccountSharedData