150 lines
4.4 KiB
Rust
150 lines
4.4 KiB
Rust
use crate::error::ErrorCode;
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#[allow(deprecated)]
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use crate::{accounts::state::ProgramState, context::CpiStateContext};
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use crate::{
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AccountDeserialize, AccountSerialize, Accounts, AccountsExit, Key, Result, ToAccountInfos,
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ToAccountMetas,
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};
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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, BTreeSet};
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use std::ops::{Deref, DerefMut};
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/// Boxed container for the program state singleton, used when the state
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/// is for a program not currently executing.
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#[derive(Clone)]
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#[deprecated]
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pub struct CpiState<'info, T: AccountSerialize + AccountDeserialize + Clone> {
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inner: Box<Inner<'info, T>>,
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}
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#[derive(Clone)]
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struct Inner<'info, T: AccountSerialize + AccountDeserialize + Clone> {
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info: AccountInfo<'info>,
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account: T,
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> CpiState<'info, T> {
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pub fn new(i: AccountInfo<'info>, account: T) -> CpiState<'info, T> {
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Self {
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inner: Box::new(Inner { info: i, account }),
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}
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}
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/// Deserializes the given `info` into a `CpiState`.
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#[inline(never)]
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pub fn try_from(info: &AccountInfo<'info>) -> Result<CpiState<'info, T>> {
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let mut data: &[u8] = &info.try_borrow_data()?;
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Ok(CpiState::new(info.clone(), T::try_deserialize(&mut data)?))
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}
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fn seed() -> &'static str {
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ProgramState::<T>::seed()
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}
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pub fn address(program_id: &Pubkey) -> Pubkey {
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let (base, _nonce) = Pubkey::find_program_address(&[], program_id);
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let seed = Self::seed();
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let owner = program_id;
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Pubkey::create_with_seed(&base, seed, owner).unwrap()
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}
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/// Convenience api for creating a `CpiStateContext`.
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pub fn context<'a, 'b, 'c, A: Accounts<'info>>(
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&self,
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program: AccountInfo<'info>,
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accounts: A,
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) -> CpiStateContext<'a, 'b, 'c, 'info, A> {
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CpiStateContext::new(program, self.inner.info.clone(), accounts)
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}
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}
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#[allow(deprecated)]
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impl<'info, T> Accounts<'info> for CpiState<'info, T>
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where
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T: AccountSerialize + 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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_reallocs: &mut BTreeSet<Pubkey>,
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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 or address check is done here. One must use the
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// #[account(state = <account-name>)] constraint.
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CpiState::try_from(account)
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}
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> ToAccountMetas
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for CpiState<'info, T>
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{
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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.inner.info.is_signer);
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let meta = match self.inner.info.is_writable {
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false => AccountMeta::new_readonly(*self.inner.info.key, is_signer),
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true => AccountMeta::new(*self.inner.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: AccountSerialize + AccountDeserialize + Clone> ToAccountInfos<'info>
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for CpiState<'info, T>
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{
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fn to_account_infos(&self) -> Vec<AccountInfo<'info>> {
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vec![self.inner.info.clone()]
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}
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> AsRef<AccountInfo<'info>>
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for CpiState<'info, T>
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{
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fn as_ref(&self) -> &AccountInfo<'info> {
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&self.inner.info
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}
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> Deref for CpiState<'info, T> {
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type Target = T;
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fn deref(&self) -> &Self::Target {
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&(self.inner).account
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}
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> DerefMut for CpiState<'info, T> {
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fn deref_mut(&mut self) -> &mut Self::Target {
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&mut DerefMut::deref_mut(&mut self.inner).account
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}
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> AccountsExit<'info>
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for CpiState<'info, T>
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{
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}
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#[allow(deprecated)]
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impl<'info, T: AccountSerialize + AccountDeserialize + Clone> Key for CpiState<'info, T> {
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fn key(&self) -> Pubkey {
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*self.inner.info.key
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}
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}
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