From 42739b73b19eeaa78b94d5a92d42e38af5e48456 Mon Sep 17 00:00:00 2001
From: chriseth <chris@ethereum.org>
Date: Tue, 31 Aug 2021 16:23:16 +0200
Subject: [PATCH] Extend debug info.

---
 libyul/AST.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libyul/AST.h b/libyul/AST.h
index 01eece34d..bfc721ce5 100644
--- a/libyul/AST.h
+++ b/libyul/AST.h
@@ -29,6 +29,7 @@
 #include <liblangutil/SourceLocation.h>
 
 #include <memory>
+#include <optional>
 
 namespace solidity::yul
 {
@@ -39,6 +40,8 @@ struct DebugData
 {
 	explicit DebugData(langutil::SourceLocation _location): location(std::move(_location)) {}
 	langutil::SourceLocation location;
+	/// ID in the (Solidity) source AST.
+	std::optional<int64_t> astID;
 	static std::shared_ptr<DebugData const> create(langutil::SourceLocation _location = {})
 	{
 		return std::make_shared<DebugData const>(_location);