Struct ResizeWithPayer 

pub struct ResizeWithPayer<'a, 'info> {
    pub account: &'a AccountView<'info>,
    pub payer: &'a AccountView<'info>,
    pub system_program: &'a AccountView<'info>,
    pub program_id: &'a Address,
    pub new_len: usize,
}

Resize program-owned state, funding only missing rent through System CPI.

The default invocation reads live rent. Growth is checked against the length at instruction entry before a payer is charged. Newly exposed bytes are zeroed; shrinking retains excess lamports in the account. This does not authorize an application’s resize: validate its authority before invoking this builder. program_id must be the current entrypoint’s program ID.

Fields

account: &'a AccountView<'info>

payer: &'a AccountView<'info>

system_program: &'a AccountView<'info>

program_id: &'a Address

new_len: usize

Implementations

impl ResizeWithPayer<'_, '_>

pub fn invoke(&self) -> ProgramResult

Fund from a transaction signer using the live Rent sysvar.

pub fn invoke_signed(&self, signers: &[Signer<'_, '_>]) -> ProgramResult

Also support a System-owned PDA payer derived by the current program. Nonempty signer seeds are verified by the SVM, not assumed valid here.

pub fn invoke_signed_with_rent( &self, rent: &Rent, signers: &[Signer<'_, '_>], ) -> ProgramResult

Reuse a Rent value already read from the target cluster in this instruction. A fabricated or stale rent value can underfund the account; use invoke unless the caller already has the live sysvar.