Enum AccountFieldPatch 

pub enum AccountFieldPatch {
    Lamports(u64),
    Owner(Pubkey),
    DataAt {
        offset: usize,
        data: Vec<u8>,
    },
    Lifecycle {
        mode: AccountMode,
        slot: Slot,
    },
    DataLen(usize),
}

A bounded account-image patch.

Variants

Lamports(u64)

Replaces the lamport balance.

Owner(Pubkey)

Replaces the owner.

DataAt

Writes bytes starting at offset, extending the account data if needed.

Fields

offset: usize

Byte offset into the current data buffer.

data: Vec<u8>

Bytes to write.

Lifecycle

Replaces the account lifecycle.

Fields

mode: AccountMode

Requested lifecycle mode.

slot: Slot

Requested lifecycle slot.

DataLen(usize)

Resizes the data buffer to an exact length, zero-filling when growing.

Implementations

impl AccountFieldPatch

pub fn apply( self, account: &mut AccountSharedData, ) -> Result<(), AccountPatchError>

Applies this patch to account.

The account methods mark dirtiness and preserve the writable invariants. Invalid mode and slot transitions leave the account unchanged and return their transition context.

pub fn sequence(account: OwnedAccount) -> Vec<Self>

Decomposes an owned account into the ordered sequence of patches that reconstruct its non-flag fields: lamports, lifecycle, owner, the exact data length, then the data in MAX_DATA_CHUNK_SIZE-sized chunks.

Trait Implementations

impl Debug for AccountFieldPatch

Concise, log-friendly rendering: scalar fields show their value, DataAt shows only offset+len (never the raw bytes).

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

Formats the value using the given formatter.