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- use crate::*;
- use crate::{error::ErrorCode, prelude::Account};
- use solana_program::account_info::AccountInfo;
- use solana_program::instruction::AccountMeta;
- use solana_program::pubkey::Pubkey;
- use std::collections::BTreeMap;
- use std::ops::{Deref, DerefMut};
- /// Container for any account *not* owned by the current program.
- #[derive(Clone)]
- #[deprecated(since = "0.15.0", note = "Please use Account instead")]
- pub struct CpiAccount<'a, T: AccountDeserialize + Clone> {
- info: AccountInfo<'a>,
- account: Box<T>,
- }
- #[allow(deprecated)]
- impl<'a, T: AccountDeserialize + Clone> CpiAccount<'a, T> {
- fn new(info: AccountInfo<'a>, account: Box<T>) -> CpiAccount<'a, T> {
- Self { info, account }
- }
- /// Deserializes the given `info` into a `CpiAccount`.
- pub fn try_from(info: &AccountInfo<'a>) -> Result<CpiAccount<'a, T>> {
- let mut data: &[u8] = &info.try_borrow_data()?;
- Ok(CpiAccount::new(
- info.clone(),
- Box::new(T::try_deserialize(&mut data)?),
- ))
- }
- pub fn try_from_unchecked(info: &AccountInfo<'a>) -> Result<CpiAccount<'a, T>> {
- Self::try_from(info)
- }
- /// Reloads the account from storage. This is useful, for example, when
- /// observing side effects after CPI.
- pub fn reload(&mut self) -> Result<()> {
- let mut data: &[u8] = &self.info.try_borrow_data()?;
- self.account = Box::new(T::try_deserialize(&mut data)?);
- Ok(())
- }
- }
- #[allow(deprecated)]
- impl<'info, T> Accounts<'info> for CpiAccount<'info, T>
- where
- T: AccountDeserialize + Clone,
- {
- #[inline(never)]
- fn try_accounts(
- _program_id: &Pubkey,
- accounts: &mut &[AccountInfo<'info>],
- _ix_data: &[u8],
- _bumps: &mut BTreeMap<String, u8>,
- ) -> Result<Self> {
- if accounts.is_empty() {
- return Err(ErrorCode::AccountNotEnoughKeys.into());
- }
- let account = &accounts[0];
- *accounts = &accounts[1..];
- // No owner check is done here.
- let pa = CpiAccount::try_from(account)?;
- Ok(pa)
- }
- }
- #[allow(deprecated)]
- impl<'info, T: AccountDeserialize + Clone> ToAccountMetas for CpiAccount<'info, T> {
- fn to_account_metas(&self, is_signer: Option<bool>) -> Vec<AccountMeta> {
- let is_signer = is_signer.unwrap_or(self.info.is_signer);
- let meta = match self.info.is_writable {
- false => AccountMeta::new_readonly(*self.info.key, is_signer),
- true => AccountMeta::new(*self.info.key, is_signer),
- };
- vec![meta]
- }
- }
- #[allow(deprecated)]
- impl<'info, T: AccountDeserialize + Clone> ToAccountInfos<'info> for CpiAccount<'info, T> {
- fn to_account_infos(&self) -> Vec<AccountInfo<'info>> {
- vec![self.info.clone()]
- }
- }
- #[allow(deprecated)]
- impl<'info, T: AccountDeserialize + Clone> AsRef<AccountInfo<'info>> for CpiAccount<'info, T> {
- fn as_ref(&self) -> &AccountInfo<'info> {
- &self.info
- }
- }
- #[allow(deprecated)]
- impl<'a, T: AccountDeserialize + Clone> Deref for CpiAccount<'a, T> {
- type Target = T;
- fn deref(&self) -> &Self::Target {
- &self.account
- }
- }
- #[allow(deprecated)]
- impl<'a, T: AccountDeserialize + Clone> DerefMut for CpiAccount<'a, T> {
- fn deref_mut(&mut self) -> &mut Self::Target {
- &mut self.account
- }
- }
- #[allow(deprecated)]
- impl<'info, T: AccountDeserialize + Clone> AccountsExit<'info> for CpiAccount<'info, T> {}
- #[allow(deprecated)]
- impl<'info, T> From<Account<'info, T>> for CpiAccount<'info, T>
- where
- T: AccountSerialize + AccountDeserialize + Owner + Clone,
- {
- fn from(a: Account<'info, T>) -> Self {
- Self::new(a.to_account_info(), Box::new(a.into_inner()))
- }
- }
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