Struct continuation_router::Begin

pub struct Begin<'info> {
    pub continuation: Box<Account<'info, Continuation>>,
    pub random: UncheckedAccount<'info>,
    pub input: Box<Account<'info, TokenAccount>>,
    pub output: Box<Account<'info, TokenAccount>>,
    pub owner: Signer<'info>,
    pub payer: Signer<'info>,
    pub rent: Sysvar<'info, Rent>,
    pub system_program: Program<'info, System>,
}

Begins a route.

Fields

continuation: Box<Account<'info, Continuation>>

Continuation state.

random: UncheckedAccount<'info>

Nonce used for associating the continuation. Any arbitrary [Pubkey] can be passed here.

input: Box<Account<'info, TokenAccount>>

Input token account.

output: Box<Account<'info, TokenAccount>>

Output token account.

owner: Signer<'info>

Owner of all token accounts in the chain.

payer: Signer<'info>

Funds the continuation in the beginning transaction and receives the staked lamports of the continuation in the end transaction.

rent: Sysvar<'info, Rent>

Rent sysvar.

system_program: Program<'info, System>

System program.

Trait Implementations

impl<'info> Accounts<'info> for Begin<'info> where
    'info: 'info, 

fn try_accounts(
    program_id: &Pubkey,
    accounts: &mut &[AccountInfo<'info>],
    ix_data: &[u8]
) -> Result<Self, ProgramError>

Returns the validated accounts struct. What constitutes “valid” is program dependent. However, users of these types should never have to worry about account substitution attacks. For example, if a program expects a Mint account from the SPL token program in a particular field, then it should be impossible for this method to return Ok if any other account type is given–from the SPL token program or elsewhere.

impl<'info> AccountsExit<'info> for Begin<'info> where
    'info: 'info, 

fn exit(&self, program_id: &Pubkey) -> ProgramResult

program_id is the currently executing program.

impl<'info> ToAccountInfos<'info> for Begin<'info> where
    'info: 'info, 

fn to_account_infos(&self) -> Vec<AccountInfo<'info>>

impl<'info> ToAccountMetas for Begin<'info>

fn to_account_metas(&self, is_signer: Option<bool>) -> Vec<AccountMeta>

is_signer is given as an optional override for the signer meta field. This covers the edge case when a program-derived-address needs to relay a transaction from a client to another program but sign the transaction before the relay. The client cannot mark the field as a signer, and so we have to override the is_signer meta field given by the client.