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[FreeBSD/releng/10.0.git] / contrib / llvm / tools / lldb / source / Plugins / SymbolFile / DWARF / DWARFAttribute.h
1 //===-- DWARFAttribute.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_DWARFAttribute_h_
11 #define SymbolFileDWARF_DWARFAttribute_h_
12
13 #include "DWARFDefines.h"
14 #include <vector>
15
16 class DWARFAttribute
17 {
18 public:
19     DWARFAttribute(dw_attr_t attr, dw_form_t form) :
20         m_attr_form ( attr << 16 | form )
21     {
22     }
23
24     void        set(dw_attr_t attr, dw_form_t form) { m_attr_form = (attr << 16) | form; }
25     void        set_attr(dw_attr_t attr) { m_attr_form = (m_attr_form & 0x0000ffffu) | (attr << 16); }
26     void        set_form(dw_form_t form) { m_attr_form = (m_attr_form & 0xffff0000u) | form; }
27     dw_attr_t   get_attr() const { return m_attr_form >> 16; }
28     dw_form_t   get_form() const { return (dw_form_t)m_attr_form; }
29     void        get(dw_attr_t& attr, dw_form_t& form)  const
30     {
31         register uint32_t attr_form = m_attr_form;
32         attr = attr_form >> 16;
33         form = (dw_form_t)attr_form;
34     }
35     bool        operator == (const DWARFAttribute& rhs) const { return m_attr_form == rhs.m_attr_form; }
36     typedef std::vector<DWARFAttribute> collection;
37     typedef collection::iterator iterator;
38     typedef collection::const_iterator const_iterator;
39
40 protected:
41     uint32_t    m_attr_form;    // Upper 16 bits is attribute, lower 16 bits is form
42 };
43
44
45 #endif  // SymbolFileDWARF_DWARFAttribute_h_