1 files changed, 58 insertions, 0 deletions
diff --git a/contrib/llvm/tools/lldb/source/Symbol/ClangUtil.cpp b/contrib/llvm/tools/lldb/source/Symbol/ClangUtil.cpp
new file mode 100644
index 000000000000..76d621e9ce44
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Symbol/ClangUtil.cpp
@@ -0,0 +1,58 @@
+//===-- ClangUtil.cpp -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+// A collection of helper methods and data structures for manipulating clang
+// types and decls.
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Symbol/ClangUtil.h"
+#include "lldb/Symbol/ClangASTContext.h"
+
+using namespace clang;
+using namespace lldb_private;
+
+bool
+ClangUtil::IsClangType(const CompilerType &ct)
+{
+    if (llvm::dyn_cast_or_null<ClangASTContext>(ct.GetTypeSystem()) == nullptr)
+        return false;
+
+    if (!ct.GetOpaqueQualType())
+        return false;
+
+    return true;
+}
+
+QualType
+ClangUtil::GetQualType(const CompilerType &ct)
+{
+    // Make sure we have a clang type before making a clang::QualType
+    if (!IsClangType(ct))
+        return QualType();
+
+    return QualType::getFromOpaquePtr(ct.GetOpaqueQualType());
+}
+
+QualType
+ClangUtil::GetCanonicalQualType(const CompilerType &ct)
+{
+    if (!IsClangType(ct))
+        return QualType();
+
+    return GetQualType(ct).getCanonicalType();
+}
+
+CompilerType
+ClangUtil::RemoveFastQualifiers(const CompilerType &ct)
+{
+    if (!IsClangType(ct))
+        return ct;
+
+    QualType qual_type(GetQualType(ct));
+    qual_type.removeLocalFastQualifiers();
+    return CompilerType(ct.GetTypeSystem(), qual_type.getAsOpaquePtr());
+}