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