DWARFAttribute.h revision 256281 
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
16class DWARFAttribute
17{
18public:
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
40protected:
41    uint32_t    m_attr_form;    // Upper 16 bits is attribute, lower 16 bits is form
42};
43
44
45#endif  // SymbolFileDWARF_DWARFAttribute_h_
46