Allow passing of program_ids to programs (#8639)

runtime/src/accounts.rs

@@ -127,17 +127,13 @@ impl Accounts {
             // If a fee can pay for execution then the program will be scheduled
             let mut accounts: TransactionAccounts = Vec::with_capacity(message.account_keys.len());
             let mut tx_rent: TransactionRent = 0;
-            for (i, key) in message
-                .account_keys
-                .iter()
-                .enumerate()
-                .filter(|(_, key)| !message.program_ids().contains(key))
-            {
+            for (i, key) in message.account_keys.iter().enumerate().filter(|(i, key)| {
+                !message.program_ids().contains(key) || message.is_key_passed_to_program(*i)
+            }) {
                 let (account, rent) = AccountsDB::load(storage, ancestors, accounts_index, key)
                     .and_then(|(mut account, _)| {
-                        let rent_due: u64;
-                        if message.is_writable(i) {
-                            rent_due = rent_collector.update(&mut account);
+                        if message.is_writable(i) && !account.executable {
+                            let rent_due = rent_collector.update(&mut account);
                             Some((account, rent_due))
                         } else {
                             Some((account, 0))
@@ -1125,12 +1121,12 @@ mod tests {
 
         let loaded_accounts = load_accounts(tx, &accounts, &mut error_counters);
 
-        assert_eq!(error_counters.invalid_account_for_fee, 1);
+        assert_eq!(error_counters.account_not_found, 1);
         assert_eq!(loaded_accounts.len(), 1);
         assert_eq!(
             loaded_accounts[0],
             (
-                Err(TransactionError::InvalidAccountForFee),
+                Err(TransactionError::AccountNotFound),
                 Some(HashAgeKind::Extant)
             )
         );

runtime/src/bank.rs

@@ -5568,7 +5568,6 @@ mod tests {
     }
 
     #[test]
-    #[should_panic(expected = "index out of bounds: the len is 3 but the index is 3")]
     fn test_transaction_with_program_ids_passed_to_programs() {
         let (genesis_config, mint_keypair) = create_genesis_config(500);
         let mut bank = Bank::new(&genesis_config);

runtime/src/message_processor.rs

@@ -332,10 +332,6 @@ impl MessageProcessor {
                 .ok_or(TransactionError::InvalidAccountIndex)?;
             let executable_accounts = &loaders[executable_index];
 
-            // TODO: panics on an index out of bounds if an executable
-            // account is also included as a regular account for an instruction, because the
-            // executable account is not passed in as part of the accounts slice
-            // See test: bank::tests::test_transaction_with_program_ids_passed_to_programs
             let program_accounts: Vec<_> = instruction
                 .accounts
                 .iter()

sdk/src/message.rs

@@ -7,6 +7,7 @@ use crate::{
     short_vec, system_instruction,
 };
 use itertools::Itertools;
+use std::convert::TryFrom;
 
 fn position(keys: &[Pubkey], key: &Pubkey) -> u8 {
     keys.iter().position(|k| k == key).unwrap() as u8
@@ -233,6 +234,17 @@ impl Message {
             .collect()
     }
 
+    pub fn is_key_passed_to_program(&self, index: usize) -> bool {
+        if let Ok(index) = u8::try_from(index) {
+            for ix in self.instructions.iter() {
+                if ix.accounts.contains(&index) {
+                    return true;
+                }
+            }
+        }
+        false
+    }
+
     pub fn program_position(&self, index: usize) -> Option<usize> {
         let program_ids = self.program_ids();
         program_ids