From CpiAccount for ProgramAccount

examples/tutorial/basic-3/programs/puppet-master/src/lib.rs

@@ -10,7 +10,7 @@ mod puppet_master {
     pub fn pull_strings(ctx: Context<PullStrings>, data: u64) -> ProgramResult {
         let cpi_program = ctx.accounts.puppet_program.clone();
         let cpi_accounts = SetData {
-            puppet: ctx.accounts.puppet.clone(),
+            puppet: ctx.accounts.puppet.clone().into(),
         };
         let cpi_ctx = CpiContext::new(cpi_program, cpi_accounts);
         puppet::cpi::set_data(cpi_ctx, data)

src/program_account.rs

@@ -1,6 +1,6 @@
 use crate::{
-    AccountDeserialize, AccountSerialize, Accounts, AccountsInit, ToAccountInfo, ToAccountInfos,
-    ToAccountMetas,
+    AccountDeserialize, AccountSerialize, Accounts, AccountsInit, CpiAccount, ToAccountInfo,
+    ToAccountInfos, ToAccountMetas,
 };
 use solana_sdk::account_info::AccountInfo;
 use solana_sdk::instruction::AccountMeta;
@@ -129,3 +129,15 @@ impl<'a, T: AccountSerialize + AccountDeserialize + Clone> DerefMut for ProgramA
         &mut self.account
     }
 }
+
+impl<'info, T> From<CpiAccount<'info, T>> for ProgramAccount<'info, T>
+where
+    T: AccountSerialize + AccountDeserialize + Clone,
+{
+    fn from(a: CpiAccount<'info, T>) -> Self {
+        Self {
+            info: a.to_account_info(),
+            account: Deref::deref(&a).clone(),
+        }
+    }
+}