anchor/lang/src/ctor.rs

use crate::{Accounts, Sysvar};
use solana_program::account_info::AccountInfo;
use solana_program::sysvar::rent::Rent;

// The Ctor accounts that can be used to create any account within the program
// itself (instead of creating the account on the client).
//
// This is used to create accounts at deterministic addresses, as a function of
// nothing but a program ID--for example, to create state  global program
// structs and program IDL accounts.
#[derive(Accounts)]
pub struct Ctor<'info> {
    // Payer of the transaction.
    #[account(signer)]
    pub from: AccountInfo<'info>,
    // The deterministically defined "state" account being created via
    // `create_account_with_seed`.
    #[account(mut)]
    pub to: AccountInfo<'info>,
    // The program-derived-address signing off on the account creation.
    // Seeds = &[] + bump seed.
    pub base: AccountInfo<'info>,
    // The system program.
    pub system_program: AccountInfo<'info>,
    // The program whose state is being constructed.
    pub program: AccountInfo<'info>,
    // Rent sysvar.
    pub rent: Sysvar<'info, Rent>,
}