1 files changed, 56 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Core/ValueObjectUpdater.cpp b/contrib/llvm-project/lldb/source/Core/ValueObjectUpdater.cpp
new file mode 100644
index 000000000000..af7f976a6d27
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Core/ValueObjectUpdater.cpp
@@ -0,0 +1,56 @@
+//===-- ValueObjectUpdater.cpp --------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Core/ValueObjectUpdater.h"
+
+using namespace lldb_private;
+
+ValueObjectUpdater::ValueObjectUpdater(lldb::ValueObjectSP in_valobj_sp) {
+  if (!in_valobj_sp)
+    return;
+  // If the user passes in a value object that is dynamic or synthetic, then
+  // water it down to the static type.
+  m_root_valobj_sp = in_valobj_sp->GetQualifiedRepresentationIfAvailable(
+      lldb::eNoDynamicValues, false);
+}
+
+lldb::ValueObjectSP ValueObjectUpdater::GetSP() {
+  lldb::ProcessSP process_sp = GetProcessSP();
+  if (!process_sp)
+    return lldb::ValueObjectSP();
+
+  const uint32_t current_stop_id = process_sp->GetLastNaturalStopID();
+  if (current_stop_id == m_stop_id)
+    return m_user_valobj_sp;
+
+  m_stop_id = current_stop_id;
+
+  if (!m_root_valobj_sp) {
+    m_user_valobj_sp.reset();
+    return m_root_valobj_sp;
+  }
+
+  m_user_valobj_sp = m_root_valobj_sp;
+
+  lldb::ValueObjectSP dynamic_sp =
+      m_user_valobj_sp->GetDynamicValue(lldb::eDynamicDontRunTarget);
+  if (dynamic_sp)
+    m_user_valobj_sp = dynamic_sp;
+
+  lldb::ValueObjectSP synthetic_sp = m_user_valobj_sp->GetSyntheticValue();
+  if (synthetic_sp)
+    m_user_valobj_sp = synthetic_sp;
+
+  return m_user_valobj_sp;
+}
+
+lldb::ProcessSP ValueObjectUpdater::GetProcessSP() const {
+  if (m_root_valobj_sp)
+    return m_root_valobj_sp->GetProcessSP();
+  return lldb::ProcessSP();
+}