rpc: simulate tx: add jsonParsed support for inner instructions

banks-server/src/banks_server.rs

@@ -196,7 +196,7 @@ fn simulate_transaction(
         units_consumed,
         return_data,
         inner_instructions,
-    } = bank.simulate_transaction_unchecked(sanitized_transaction, false);
+    } = bank.simulate_transaction_unchecked(&sanitized_transaction, false);
 
     let simulation_details = TransactionSimulationDetails {
         logs,

programs/sbf/tests/programs.rs

@@ -737,7 +737,7 @@ fn test_return_data_and_log_data_syscall() {
         let transaction = Transaction::new(&[&mint_keypair], message, blockhash);
         let sanitized_tx = SanitizedTransaction::from_transaction_for_tests(transaction);
 
-        let result = bank.simulate_transaction(sanitized_tx, false);
+        let result = bank.simulate_transaction(&sanitized_tx, false);
 
         assert!(result.result.is_ok());
 

rpc-client-api/src/response.rs

@@ -10,8 +10,8 @@ use {
         transaction::{Result, TransactionError},
     },
     solana_transaction_status::{
-        ConfirmedTransactionStatusWithSignature, InnerInstructions, TransactionConfirmationStatus,
-        UiConfirmedBlock, UiTransactionReturnData,
+        ConfirmedTransactionStatusWithSignature, TransactionConfirmationStatus, UiConfirmedBlock,
+        UiInnerInstructions, UiTransactionReturnData,
     },
     std::{collections::HashMap, fmt, net::SocketAddr, str::FromStr},
     thiserror::Error,
@@ -423,7 +423,7 @@ pub struct RpcSimulateTransactionResult {
     pub accounts: Option<Vec<Option<UiAccount>>>,
     pub units_consumed: Option<u64>,
     pub return_data: Option<UiTransactionReturnData>,
-    pub inner_instructions: Option<Vec<InnerInstructions>>,
+    pub inner_instructions: Option<Vec<UiInnerInstructions>>,
 }
 
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]

rpc/src/rpc.rs

@@ -3265,6 +3265,7 @@ pub mod rpc_full {
     use {
         super::*,
         solana_sdk::message::{SanitizedVersionedMessage, VersionedMessage},
+        solana_transaction_status::UiInnerInstructions,
     };
     #[rpc]
     pub trait Full {
@@ -3676,7 +3677,7 @@ pub mod rpc_full {
                     units_consumed,
                     return_data,
                     inner_instructions: _, // Always `None` due to `enable_cpi_recording = false`
-                } = preflight_bank.simulate_transaction(transaction, false)
+                } = preflight_bank.simulate_transaction(&transaction, false)
                 {
                     match err {
                         TransactionError::BlockhashNotFound => {
@@ -3755,7 +3756,6 @@ pub mod rpc_full {
             if sig_verify {
                 verify_transaction(&transaction, &bank.feature_set)?;
             }
-            let number_of_accounts = transaction.message().account_keys().len();
 
             let TransactionSimulationResult {
                 result,
@@ -3764,7 +3764,10 @@ pub mod rpc_full {
                 units_consumed,
                 return_data,
                 inner_instructions,
-            } = bank.simulate_transaction(transaction, enable_cpi_recording);
+            } = bank.simulate_transaction(&transaction, enable_cpi_recording);
+
+            let account_keys = transaction.message().account_keys();
+            let number_of_accounts = account_keys.len();
 
             let accounts = if let Some(config_accounts) = config_accounts {
                 let accounts_encoding = config_accounts
@@ -3821,6 +3824,7 @@ pub mod rpc_full {
                             .collect(),
                     })
                     .filter(|i| !i.instructions.is_empty())
+                    .map(|converted| UiInnerInstructions::parse(converted, &account_keys))
                     .collect()
             });
 

runtime/src/bank.rs

@@ -4318,7 +4318,7 @@ impl Bank {
     /// Run transactions against a frozen bank without committing the results
     pub fn simulate_transaction(
         &self,
-        transaction: SanitizedTransaction,
+        transaction: &SanitizedTransaction,
         enable_cpi_recording: bool,
     ) -> TransactionSimulationResult {
         assert!(self.is_frozen(), "simulation bank must be frozen");
@@ -4330,13 +4330,13 @@ impl Bank {
     /// is frozen, enabling use in single-Bank test frameworks
     pub fn simulate_transaction_unchecked(
         &self,
-        transaction: SanitizedTransaction,
+        transaction: &SanitizedTransaction,
         enable_cpi_recording: bool,
     ) -> TransactionSimulationResult {
         let account_keys = transaction.message().account_keys();
         let number_of_accounts = account_keys.len();
         let account_overrides = self.get_account_overrides_for_simulation(&account_keys);
-        let batch = self.prepare_unlocked_batch_from_single_tx(&transaction);
+        let batch = self.prepare_unlocked_batch_from_single_tx(transaction);
         let mut timings = ExecuteTimings::default();
 
         let LoadAndExecuteTransactionsOutput {

transaction-status/src/lib.rs

@@ -240,7 +240,7 @@ pub struct UiInnerInstructions {
 }
 
 impl UiInnerInstructions {
-    fn parse(inner_instructions: InnerInstructions, account_keys: &AccountKeys) -> Self {
+    pub fn parse(inner_instructions: InnerInstructions, account_keys: &AccountKeys) -> Self {
         Self {
             index: inner_instructions.index,
             instructions: inner_instructions