1//===-- ClangExpressionVariable.cpp -----------------------------*- 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#include "lldb/Expression/ClangExpressionVariable.h"
11
12// C Includes
13// C++ Includes
14// Other libraries and framework includes
15// Project includes
16#include "clang/AST/ASTContext.h"
17#include "lldb/Core/ConstString.h"
18#include "lldb/Core/DataExtractor.h"
19#include "lldb/Core/Stream.h"
20#include "lldb/Core/Value.h"
21#include "lldb/Core/ValueObjectConstResult.h"
22#include "lldb/Target/ExecutionContext.h"
23#include "lldb/Target/Process.h"
24
25using namespace lldb_private;
26using namespace clang;
27
28ClangExpressionVariable::ClangExpressionVariable(ExecutionContextScope *exe_scope, lldb::ByteOrder byte_order, uint32_t addr_byte_size) :
29    m_parser_vars(),
30    m_jit_vars (),
31    m_flags (EVNone),
32    m_frozen_sp (ValueObjectConstResult::Create (exe_scope, byte_order, addr_byte_size))
33{
34}
35
36ClangExpressionVariable::ClangExpressionVariable (const lldb::ValueObjectSP &valobj_sp) :
37    m_parser_vars(),
38    m_jit_vars (),
39    m_flags (EVNone),
40    m_frozen_sp (valobj_sp)
41{
42}
43
44//----------------------------------------------------------------------
45/// Return the variable's size in bytes
46//----------------------------------------------------------------------
47size_t
48ClangExpressionVariable::GetByteSize ()
49{
50    return m_frozen_sp->GetByteSize();
51}
52
53const ConstString &
54ClangExpressionVariable::GetName ()
55{
56    return m_frozen_sp->GetName();
57}
58
59lldb::ValueObjectSP
60ClangExpressionVariable::GetValueObject()
61{
62    return m_frozen_sp;
63}
64
65RegisterInfo *
66ClangExpressionVariable::GetRegisterInfo()
67{
68    return m_frozen_sp->GetValue().GetRegisterInfo();
69}
70
71void
72ClangExpressionVariable::SetRegisterInfo (const RegisterInfo *reg_info)
73{
74    return m_frozen_sp->GetValue().SetContext (Value::eContextTypeRegisterInfo, const_cast<RegisterInfo *>(reg_info));
75}
76
77ClangASTType
78ClangExpressionVariable::GetClangType()
79{
80    return m_frozen_sp->GetClangType();
81}
82
83void
84ClangExpressionVariable::SetClangType(const ClangASTType &clang_type)
85{
86    m_frozen_sp->GetValue().SetClangType(clang_type);
87}
88
89
90TypeFromUser
91ClangExpressionVariable::GetTypeFromUser()
92{
93    TypeFromUser tfu (m_frozen_sp->GetClangType());
94    return tfu;
95}
96
97uint8_t *
98ClangExpressionVariable::GetValueBytes()
99{
100    const size_t byte_size = m_frozen_sp->GetByteSize();
101    if (byte_size > 0)
102    {
103        if (m_frozen_sp->GetDataExtractor().GetByteSize() < byte_size)
104        {
105            m_frozen_sp->GetValue().ResizeData(byte_size);
106            m_frozen_sp->GetValue().GetData (m_frozen_sp->GetDataExtractor());
107        }
108        return const_cast<uint8_t *>(m_frozen_sp->GetDataExtractor().GetDataStart());
109    }
110    return NULL;
111}
112
113void
114ClangExpressionVariable::SetName (const ConstString &name)
115{
116    m_frozen_sp->SetName (name);
117}
118
119void
120ClangExpressionVariable::ValueUpdated ()
121{
122    m_frozen_sp->ValueUpdated ();
123}
124
125void
126ClangExpressionVariable::TransferAddress (bool force)
127{
128    if (m_live_sp.get() == NULL)
129        return;
130
131    if (m_frozen_sp.get() == NULL)
132        return;
133
134    if (force || (m_frozen_sp->GetLiveAddress() == LLDB_INVALID_ADDRESS))
135        m_frozen_sp->SetLiveAddress(m_live_sp->GetLiveAddress());
136}
137