Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lldb/source/Plugins/SymbolFile/DWARF/DWARFDataExtractor.h

@@ -0,0 +1,40 @@
+//===-- DWARFDataExtractor.h ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_DWARFDataExtractor_h_
+#define liblldb_DWARFDataExtractor_h_
+
+// Other libraries and framework includes.
+#include "lldb/Core/dwarf.h"
+#include "lldb/Utility/DataExtractor.h"
+
+namespace lldb_private {
+
+class DWARFDataExtractor : public DataExtractor {
+public:
+  DWARFDataExtractor() : DataExtractor(), m_is_dwarf64(false) {}
+
+  DWARFDataExtractor(const DWARFDataExtractor &data, lldb::offset_t offset,
+                     lldb::offset_t length)
+      : DataExtractor(data, offset, length), m_is_dwarf64(false) {}
+
+  uint64_t GetDWARFInitialLength(lldb::offset_t *offset_ptr) const;
+
+  dw_offset_t GetDWARFOffset(lldb::offset_t *offset_ptr) const;
+
+  size_t GetDWARFSizeofInitialLength() const { return m_is_dwarf64 ? 12 : 4; }
+
+  bool IsDWARF64() const { return m_is_dwarf64; }
+
+protected:
+  mutable bool m_is_dwarf64;
+};
+}
+
+#endif // liblldb_DWARFDataExtractor_h_