Struct SegmentedAccount 

pub struct SegmentedAccount<'a, T: Pod + FixedLayout + HopperLayout> { /* private fields */ }

A segmented account with role-aware region access.

The account data is divided into a segment registry header followed by typed segments. Each segment has a role (Core, Extension, Journal, etc.) and can be accessed individually.

Implementations

impl<'a, T: Pod + FixedLayout + HopperLayout> SegmentedAccount<'a, T>

pub fn from_account( account: &'a AccountView, program_id: &'a Address, ) -> Result<Self, ProgramError>

Construct from an AccountView with header and owner validation.

pub fn registry(&self) -> Result<BorrowedSegmentRegistry<'_>, ProgramError>

Access the segment registry.

pub fn segment_by_index( &self, index: usize, ) -> Result<Ref<'_, [u8]>, ProgramError>

Read a segment’s raw bytes by index.

pub fn segment_data( &self, id: &SegmentId, ) -> Result<Ref<'_, [u8]>, ProgramError>

Read a segment’s data by its 4-byte ID.

pub fn segment_by_index_mut( &self, index: usize, ) -> Result<RefMut<'_, [u8]>, ProgramError>

Read a segment’s raw bytes mutably by index.

pub fn address(&self) -> &Address

The account’s address.

pub fn to_account_view(&self) -> &'a AccountView

The underlying AccountView.