From d9655ea507f6a111b31a92673905e40658b1674c Mon Sep 17 00:00:00 2001
From: Jack May <jack@solana.com>
Date: Thu, 10 Dec 2020 16:39:43 -0800
Subject: [PATCH] Add message helpers to get program info (#14047)

---
 sdk/program/src/message.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sdk/program/src/message.rs b/sdk/program/src/message.rs
index c58442500f..b72e865d90 100644
--- a/sdk/program/src/message.rs
+++ b/sdk/program/src/message.rs
@@ -280,6 +280,16 @@ impl Message {
         bincode::serialize(self).unwrap()
     }
 
+    pub fn program_id(&self, instruction_index: usize) -> Option<&Pubkey> {
+        Some(
+            &self.account_keys[self.instructions.get(instruction_index)?.program_id_index as usize],
+        )
+    }
+
+    pub fn program_index(&self, instruction_index: usize) -> Option<usize> {
+        Some(self.instructions.get(instruction_index)?.program_id_index as usize)
+    }
+
     pub fn program_ids(&self) -> Vec<&Pubkey> {
         self.instructions
             .iter()