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      1 //===-- DWARFDebugAbbrev.h --------------------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #ifndef SymbolFileDWARF_DWARFDebugAbbrev_h_
     11 #define SymbolFileDWARF_DWARFDebugAbbrev_h_
     12 
     13 #include <list>
     14 #include <map>
     15 
     16 #include "lldb/lldb-private.h"
     17 
     18 #include "DWARFDefines.h"
     19 #include "DWARFAbbreviationDeclaration.h"
     20 
     21 typedef std::vector<DWARFAbbreviationDeclaration>               DWARFAbbreviationDeclarationColl;
     22 typedef DWARFAbbreviationDeclarationColl::iterator              DWARFAbbreviationDeclarationCollIter;
     23 typedef DWARFAbbreviationDeclarationColl::const_iterator        DWARFAbbreviationDeclarationCollConstIter;
     24 
     25 
     26 class DWARFAbbreviationDeclarationSet
     27 {
     28 public:
     29     DWARFAbbreviationDeclarationSet() :
     30         m_offset(DW_INVALID_OFFSET),
     31         m_idx_offset(0),
     32         m_decls()
     33         {
     34         }
     35 
     36     DWARFAbbreviationDeclarationSet(dw_offset_t offset, uint32_t idx_offset) :
     37         m_offset(offset),
     38         m_idx_offset(idx_offset),
     39         m_decls()
     40         {
     41         }
     42 
     43     void Clear();
     44     dw_offset_t GetOffset() const { return m_offset; }
     45     void Dump(lldb_private::Stream *s) const;
     46     bool Extract(const lldb_private::DataExtractor& data, lldb::offset_t *offset_ptr);
     47     //void Encode(BinaryStreamBuf& debug_abbrev_buf) const;
     48     dw_uleb128_t AppendAbbrevDeclSequential(const DWARFAbbreviationDeclaration& abbrevDecl);
     49 
     50     const DWARFAbbreviationDeclaration* GetAbbreviationDeclaration(dw_uleb128_t abbrCode) const;
     51 private:
     52     dw_offset_t m_offset;
     53     uint32_t m_idx_offset;
     54     std::vector<DWARFAbbreviationDeclaration> m_decls;
     55 };
     56 
     57 typedef std::map<dw_offset_t, DWARFAbbreviationDeclarationSet> DWARFAbbreviationDeclarationCollMap;
     58 typedef DWARFAbbreviationDeclarationCollMap::iterator DWARFAbbreviationDeclarationCollMapIter;
     59 typedef DWARFAbbreviationDeclarationCollMap::const_iterator DWARFAbbreviationDeclarationCollMapConstIter;
     60 
     61 
     62 class DWARFDebugAbbrev
     63 {
     64 public:
     65     DWARFDebugAbbrev();
     66     const DWARFAbbreviationDeclarationSet*  GetAbbreviationDeclarationSet(dw_offset_t cu_abbr_offset) const;
     67     void Dump(lldb_private::Stream *s) const;
     68     void Parse(const lldb_private::DataExtractor& data);
     69 protected:
     70     DWARFAbbreviationDeclarationCollMap m_abbrevCollMap;
     71     mutable DWARFAbbreviationDeclarationCollMapConstIter m_prev_abbr_offset_pos;
     72 };
     73 
     74 #endif  // SymbolFileDWARF_DWARFDebugAbbrev_h_
     75