139 lines
4.0 KiB
C++
139 lines
4.0 KiB
C++
//===-- ClangExpressionVariable.cpp -----------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Expression/ClangExpressionVariable.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "clang/AST/ASTContext.h"
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#include "lldb/Core/ConstString.h"
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#include "lldb/Core/DataExtractor.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/Value.h"
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Process.h"
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using namespace lldb_private;
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using namespace clang;
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ClangExpressionVariable::ClangExpressionVariable() :
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m_name(),
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m_user_type (TypeFromUser(NULL, NULL)),
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m_store (NULL),
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m_index (0),
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m_parser_vars(),
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m_jit_vars (),
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m_data_sp ()
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{
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}
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void
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ClangExpressionVariable::DisableDataVars()
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{
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m_data_sp.reset();
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}
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ClangExpressionVariable::ClangExpressionVariable(const ClangExpressionVariable &rhs) :
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m_name(rhs.m_name),
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m_user_type(rhs.m_user_type),
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m_store(rhs.m_store),
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m_index(rhs.m_index)
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{
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if (rhs.m_parser_vars.get())
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{
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// TODO: Sean, can m_parser_vars be a shared pointer??? We are copy
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// constructing it here. That is ok if we need to, but do we really
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// need to?
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m_parser_vars.reset(new struct ParserVars);
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*m_parser_vars.get() = *rhs.m_parser_vars.get();
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}
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if (rhs.m_jit_vars.get())
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{
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// TODO: Sean, can m_jit_vars be a shared pointer??? We are copy
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// constructing it here. That is ok if we need to, but do we really
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// need to?
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m_jit_vars.reset(new struct JITVars);
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*m_jit_vars.get() = *rhs.m_jit_vars.get();
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}
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if (rhs.m_data_sp)
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{
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// TODO: Sean, does m_data_sp need to be copy constructed? Or can it
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// shared the data?
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m_data_sp.reset(new DataBufferHeap (rhs.m_data_sp->GetBytes(),
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rhs.m_data_sp->GetByteSize()));
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}
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}
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bool
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ClangExpressionVariable::PointValueAtData(Value &value, ExecutionContext *exe_ctx)
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{
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if (m_data_sp.get() == NULL)
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return false;
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value.SetContext(Value::eContextTypeOpaqueClangQualType, m_user_type.GetOpaqueQualType());
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value.SetValueType(Value::eValueTypeHostAddress);
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value.GetScalar() = (uintptr_t)m_data_sp->GetBytes();
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clang::ASTContext *ast_context = m_user_type.GetASTContext();
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if (exe_ctx)
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value.ResolveValue (exe_ctx, ast_context);
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return true;
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}
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void
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ClangExpressionVariable::EnableDataVars()
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{
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if (!m_data_sp.get())
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m_data_sp.reset(new DataBufferHeap);
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}
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lldb::ValueObjectSP
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ClangExpressionVariable::GetExpressionResult (ExecutionContext *exe_ctx)
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{
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lldb::ValueObjectSP result_sp;
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if (m_data_sp)
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{
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Target * target = NULL;
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Process *process = NULL;
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if (exe_ctx)
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{
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target = exe_ctx->target;
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process = exe_ctx->process;
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}
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Value value;
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if (PointValueAtData(value, exe_ctx))
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{
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lldb::ByteOrder byte_order = lldb::eByteOrderHost;
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uint32_t addr_byte_size = 4;
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if (process)
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{
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byte_order = process->GetByteOrder();
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addr_byte_size = process->GetAddressByteSize();
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}
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result_sp.reset (new ValueObjectConstResult (m_user_type.GetASTContext(),
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m_user_type.GetOpaqueQualType(),
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m_name,
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m_data_sp,// TODO: sean can you get this to be valid?
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byte_order,
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addr_byte_size));
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}
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}
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return result_sp;
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}
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