From 124caad51979699e15f25bb3aef2057c2bd5f4a3 Mon Sep 17 00:00:00 2001
From: Siddharth Suresh <siddharth@stellar.org>
Date: Tue, 24 Jan 2023 16:22:03 -0800
Subject: [PATCH] Add diagnosticEvents

---
 Stellar-ledger.x | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/Stellar-ledger.x b/Stellar-ledger.x
index eaf1e89..1563fb9 100644
--- a/Stellar-ledger.x
+++ b/Stellar-ledger.x
@@ -388,7 +388,8 @@ struct TransactionMetaV2
 enum ContractEventType
 {
     SYSTEM = 0,
-    CONTRACT = 1
+    CONTRACT = 1,
+    DIAGNOSTIC = 2
 };
 
 struct ContractEvent
@@ -412,6 +413,17 @@ struct ContractEvent
     body;
 };
 
+struct DiagnosticEvent
+{
+    bool inSuccessfulContractCall;
+    ContractEvent event;
+};
+
+struct OperationDiagnosticEvents
+{
+    DiagnosticEvent events<>;
+};
+
 struct OperationEvents
 {
     ContractEvent events<>;
@@ -430,6 +442,11 @@ struct TransactionMetaV3
 
     Hash hashes[3];                     // stores sha256(txChangesBefore, operations, txChangesAfter),
                                         // sha256(events), and sha256(txResult)
+
+    // Diagnostics events that are not hashed. One list per operation.
+    // This will contain all contract and diagnostic events. Even ones
+    // that were emitted in a failed contract call.
+    OperationDiagnosticEvents diagnosticEvents<>;
 };
 
 // this is the meta produced when applying transactions