llvm-project/lldb/tools/lldb-mi/MICmnLLDBDebugSessionInfoVa...

582 lines
20 KiB
C++

//===-- MICmnLLDBDebugSessionInfoVarObj.cpp ---------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//++
// File: MICmnLLDBDebugSessionInfoVarObj.cpp
//
// Overview: CMICmnLLDBDebugSessionInfoVarObj implementation.
//
// Environment: Compilers: Visual C++ 12.
// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
// Libraries: See MIReadmetxt.
//
// Copyright: None.
//--
// In-house headers:
#include "MICmnLLDBDebugSessionInfoVarObj.h"
#include "MICmnLLDBProxySBValue.h"
#include "MICmnLLDBUtilSBValue.h"
// Instantiations:
const MIchar *CMICmnLLDBDebugSessionInfoVarObj::ms_aVarFormatStrings[] = {
// CODETAG_SESSIONINFO_VARFORMAT_ENUM
// *** Order is import here.
"<Invalid var format>", "binary", "octal", "decimal", "hexadecimal", "natural"};
const MIchar *CMICmnLLDBDebugSessionInfoVarObj::ms_aVarFormatChars[] = {
// CODETAG_SESSIONINFO_VARFORMAT_ENUM
// *** Order is import here.
"<Invalid var format>", "t", "o", "d", "x", "N"};
CMICmnLLDBDebugSessionInfoVarObj::MapKeyToVarObj_t CMICmnLLDBDebugSessionInfoVarObj::ms_mapVarIdToVarObj;
MIuint CMICmnLLDBDebugSessionInfoVarObj::ms_nVarUniqueId = 0; // Index from 0
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj constructor.
// Type: Method.
// Args: None.
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::CMICmnLLDBDebugSessionInfoVarObj(void)
: m_eVarFormat(eVarFormat_Natural)
, m_eVarType(eVarType_Internal)
{
// Do not call UpdateValue() in here as not necessary
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj constructor.
// Type: Method.
// Args: vrStrNameReal - (R) The actual name of the variable, the expression.
// vrStrName - (R) The name given for *this var object.
// vrValue - (R) The LLDB SBValue object represented by *this object.
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::CMICmnLLDBDebugSessionInfoVarObj(const CMIUtilString &vrStrNameReal, const CMIUtilString &vrStrName,
const lldb::SBValue &vrValue)
: m_eVarFormat(eVarFormat_Natural)
, m_eVarType(eVarType_Internal)
, m_strName(vrStrName)
, m_SBValue(vrValue)
, m_strNameReal(vrStrNameReal)
{
UpdateValue();
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj constructor.
// Type: Method.
// Args: vrStrNameReal - (R) The actual name of the variable, the expression.
// vrStrName - (R) The name given for *this var object.
// vrValue - (R) The LLDB SBValue object represented by *this object.
// vrStrVarObjParentName - (R) The var object parent to *this var object (LLDB SBValue equivalent).
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::CMICmnLLDBDebugSessionInfoVarObj(const CMIUtilString &vrStrNameReal, const CMIUtilString &vrStrName,
const lldb::SBValue &vrValue, const CMIUtilString &vrStrVarObjParentName)
: m_eVarFormat(eVarFormat_Natural)
, m_eVarType(eVarType_Internal)
, m_strName(vrStrName)
, m_SBValue(vrValue)
, m_strNameReal(vrStrNameReal)
, m_strVarObjParentName(vrStrVarObjParentName)
{
UpdateValue();
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj copy constructor.
// Type: Method.
// Args: vrOther - (R) The object to copy from.
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::CMICmnLLDBDebugSessionInfoVarObj(const CMICmnLLDBDebugSessionInfoVarObj &vrOther)
{
CopyOther(vrOther);
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj copy constructor.
// Type: Method.
// Args: vrOther - (R) The object to copy from.
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::CMICmnLLDBDebugSessionInfoVarObj(CMICmnLLDBDebugSessionInfoVarObj &vrOther)
{
CopyOther(vrOther);
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj move constructor.
// Type: Method.
// Args: vrwOther - (R) The object to copy from.
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::CMICmnLLDBDebugSessionInfoVarObj(CMICmnLLDBDebugSessionInfoVarObj &&vrwOther)
{
MoveOther(vrwOther);
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj assignment operator.
// Type: Method.
// Args: vrOther - (R) The object to copy from.
// Return: CMICmnLLDBDebugSessionInfoVarObj & - Updated *this object.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj &CMICmnLLDBDebugSessionInfoVarObj::operator=(const CMICmnLLDBDebugSessionInfoVarObj &vrOther)
{
CopyOther(vrOther);
return *this;
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj assignment operator.
// Type: Method.
// Args: vrwOther - (R) The object to copy from.
// Return: CMICmnLLDBDebugSessionInfoVarObj & - Updated *this object.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj &CMICmnLLDBDebugSessionInfoVarObj::operator=(CMICmnLLDBDebugSessionInfoVarObj &&vrwOther)
{
MoveOther(vrwOther);
return *this;
}
//++ ------------------------------------------------------------------------------------
// Details: Copy the other instance of that object to *this object.
// Type: Method.
// Args: vrOther - (R) The object to copy from.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
// Throws: None.
//--
bool
CMICmnLLDBDebugSessionInfoVarObj::CopyOther(const CMICmnLLDBDebugSessionInfoVarObj &vrOther)
{
// Check for self-assignment
if (this == &vrOther)
return MIstatus::success;
m_eVarFormat = vrOther.m_eVarFormat;
m_eVarType = vrOther.m_eVarType;
m_strName = vrOther.m_strName;
m_SBValue = vrOther.m_SBValue;
m_strNameReal = vrOther.m_strNameReal;
m_strFormattedValue = vrOther.m_strFormattedValue;
m_strVarObjParentName = vrOther.m_strVarObjParentName;
return MIstatus::success;
}
//++ ------------------------------------------------------------------------------------
// Details: Move that object to *this object.
// Type: Method.
// Args: vrwOther - (RW) The object to copy from.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
// Throws: None.
//--
bool
CMICmnLLDBDebugSessionInfoVarObj::MoveOther(CMICmnLLDBDebugSessionInfoVarObj &vrwOther)
{
// Check for self-assignment
if (this == &vrwOther)
return MIstatus::success;
CopyOther(vrwOther);
vrwOther.m_eVarFormat = eVarFormat_Natural;
vrwOther.m_eVarType = eVarType_Internal;
vrwOther.m_strName.clear();
vrwOther.m_SBValue.Clear();
vrwOther.m_strNameReal.clear();
vrwOther.m_strFormattedValue.clear();
vrwOther.m_strVarObjParentName.clear();
return MIstatus::success;
}
//++ ------------------------------------------------------------------------------------
// Details: CMICmnLLDBDebugSessionInfoVarObj destructor.
// Type: Overridden.
// Args: None.
// Return: None.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::~CMICmnLLDBDebugSessionInfoVarObj(void)
{
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the var format enumeration for the specified string.
// Type: Static method.
// Args: vrStrFormat - (R) Text description of the var format.
// Return: varFormat_e - Var format enumeration.
// - No match found return eVarFormat_Invalid.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::varFormat_e
CMICmnLLDBDebugSessionInfoVarObj::GetVarFormatForString(const CMIUtilString &vrStrFormat)
{
// CODETAG_SESSIONINFO_VARFORMAT_ENUM
for (MIuint i = 0; i < eVarFormat_count; i++)
{
const MIchar *pVarFormatString = ms_aVarFormatStrings[i];
if (vrStrFormat == pVarFormatString)
return static_cast<varFormat_e>(i);
}
return eVarFormat_Invalid;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the var format enumeration for the specified character.
// Type: Static method.
// Args: vrcFormat - (R) Character representing the var format.
// Return: varFormat_e - Var format enumeration.
// - No match found return eVarFormat_Invalid.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::varFormat_e
CMICmnLLDBDebugSessionInfoVarObj::GetVarFormatForChar(const MIchar &vrcFormat)
{
if ('r' == vrcFormat)
return eVarFormat_Hex;
// CODETAG_SESSIONINFO_VARFORMAT_ENUM
for (MIuint i = 0; i < eVarFormat_count; i++)
{
const MIchar *pVarFormatChar = ms_aVarFormatChars[i];
if (*pVarFormatChar == vrcFormat)
return static_cast<varFormat_e>(i);
}
return eVarFormat_Invalid;
}
//++ ------------------------------------------------------------------------------------
// Details: Return the equivalent var value formatted string for the given value type.
// The SBValue vrValue parameter is checked by LLDB private code for valid
// scalar type via MI Driver proxy function as the valued returned can also be
// an error condition. The proxy function determines if the check was valid
// otherwise return an error condition state by other means saying so.
// Type: Static method.
// Args: vrValue - (R) The var value object.
// veVarFormat - (R) Var format enumeration.
// Returns: CMIUtilString - Value formatted string.
// Throws: None.
//--
CMIUtilString
CMICmnLLDBDebugSessionInfoVarObj::GetValueStringFormatted(const lldb::SBValue &vrValue,
const CMICmnLLDBDebugSessionInfoVarObj::varFormat_e veVarFormat)
{
CMIUtilString strFormattedValue;
MIuint64 nValue = 0;
if (CMICmnLLDBProxySBValue::GetValueAsUnsigned(vrValue, nValue) == MIstatus::success)
{
lldb::SBValue &rValue = const_cast<lldb::SBValue &>(vrValue);
strFormattedValue = GetStringFormatted(nValue, rValue.GetValue(), veVarFormat);
}
else
{
// Composite variable type i.e. struct
strFormattedValue = "{...}";
}
return strFormattedValue;
}
//++ ------------------------------------------------------------------------------------
// Details: Return nuber formatted string according to the given value type.
// Type: Static method.
// Args: vnValue - (R) The number value to get formatted.
// vpStrValueNatural - (R) The natural representation of the number value.
// veVarFormat - (R) Var format enumeration.
// Returns: CMIUtilString - Numerical formatted string.
// Throws: None.
//--
CMIUtilString
CMICmnLLDBDebugSessionInfoVarObj::GetStringFormatted(const MIuint64 vnValue, const MIchar *vpStrValueNatural,
const CMICmnLLDBDebugSessionInfoVarObj::varFormat_e veVarFormat)
{
CMIUtilString strFormattedValue;
switch (veVarFormat)
{
case eVarFormat_Binary:
strFormattedValue = CMIUtilString::FormatBinary(vnValue);
break;
case eVarFormat_Octal:
strFormattedValue = CMIUtilString::Format("0%llo", vnValue);
break;
case eVarFormat_Decimal:
strFormattedValue = CMIUtilString::Format("%lld", vnValue);
break;
case eVarFormat_Hex:
strFormattedValue = CMIUtilString::Format("0x%llx", vnValue);
break;
case eVarFormat_Natural:
default:
{
strFormattedValue = (vpStrValueNatural != nullptr) ? vpStrValueNatural : "";
}
}
return strFormattedValue;
}
//++ ------------------------------------------------------------------------------------
// Details: Delete internal container contents.
// Type: Static method.
// Args: None.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::VarObjClear(void)
{
ms_mapVarIdToVarObj.clear();
}
//++ ------------------------------------------------------------------------------------
// Details: Add a var object to the internal container.
// Type: Static method.
// Args: vrVarObj - (R) The var value object.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::VarObjAdd(const CMICmnLLDBDebugSessionInfoVarObj &vrVarObj)
{
VarObjDelete(vrVarObj.GetName());
MapPairKeyToVarObj_t pr(vrVarObj.GetName(), vrVarObj);
ms_mapVarIdToVarObj.insert(pr);
}
//++ ------------------------------------------------------------------------------------
// Details: Delete the var object from the internal container matching the specified name.
// Type: Static method.
// Args: vrVarName - (R) The var value name.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::VarObjDelete(const CMIUtilString &vrVarName)
{
const MapKeyToVarObj_t::const_iterator it = ms_mapVarIdToVarObj.find(vrVarName);
if (it != ms_mapVarIdToVarObj.end())
{
ms_mapVarIdToVarObj.erase(it);
}
}
//++ ------------------------------------------------------------------------------------
// Details: Update an existing var object in the internal container.
// Type: Static method.
// Args: vrVarObj - (R) The var value object.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::VarObjUpdate(const CMICmnLLDBDebugSessionInfoVarObj &vrVarObj)
{
VarObjAdd(vrVarObj);
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the var object matching the specified name.
// Type: Static method.
// Args: vrVarName - (R) The var value name.
// vrwVarObj - (W) A var object.
// Returns: bool - True = object found, false = object not found.
// Throws: None.
//--
bool
CMICmnLLDBDebugSessionInfoVarObj::VarObjGet(const CMIUtilString &vrVarName, CMICmnLLDBDebugSessionInfoVarObj &vrwVarObj)
{
const MapKeyToVarObj_t::const_iterator it = ms_mapVarIdToVarObj.find(vrVarName);
if (it != ms_mapVarIdToVarObj.end())
{
const CMICmnLLDBDebugSessionInfoVarObj &rVarObj = (*it).second;
vrwVarObj = rVarObj;
return true;
}
return false;
}
//++ ------------------------------------------------------------------------------------
// Details: A count is kept of the number of var value objects created. This is count is
// used to ID the var value object. Reset the count to 0.
// Type: Static method.
// Args: None.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::VarObjIdResetToZero(void)
{
ms_nVarUniqueId = 0;
}
//++ ------------------------------------------------------------------------------------
// Details: A count is kept of the number of var value objects created. This is count is
// used to ID the var value object. Increment the count by 1.
// Type: Static method.
// Args: None.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::VarObjIdInc(void)
{
ms_nVarUniqueId++;
}
//++ ------------------------------------------------------------------------------------
// Details: A count is kept of the number of var value objects created. This is count is
// used to ID the var value object. Retrieve ID.
// Type: Static method.
// Args: None.
// Returns: None.
// Throws: None.
//--
MIuint
CMICmnLLDBDebugSessionInfoVarObj::VarObjIdGet(void)
{
return ms_nVarUniqueId;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the value formatted object's name.
// Type: Method.
// Args: None.
// Returns: CMIUtilString & - Value's var%u name text.
// Throws: None.
//--
const CMIUtilString &
CMICmnLLDBDebugSessionInfoVarObj::GetName(void) const
{
return m_strName;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the value formatted object's variable name as given in the MI command
// to create the var object.
// Type: Method.
// Args: None.
// Returns: CMIUtilString & - Value's real name text.
// Throws: None.
//--
const CMIUtilString &
CMICmnLLDBDebugSessionInfoVarObj::GetNameReal(void) const
{
return m_strNameReal;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the value formatted string.
// Type: Method.
// Args: None.
// Returns: CMIUtilString & - Value formatted string.
// Throws: None.
//--
const CMIUtilString &
CMICmnLLDBDebugSessionInfoVarObj::GetValueFormatted(void) const
{
return m_strFormattedValue;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the LLDB Value object.
// Type: Method.
// Args: None.
// Returns: lldb::SBValue & - LLDB Value object.
// Throws: None.
//--
const lldb::SBValue &
CMICmnLLDBDebugSessionInfoVarObj::GetValue(void) const
{
return m_SBValue;
}
//++ ------------------------------------------------------------------------------------
// Details: Set the var format type for *this object and upate the formatting.
// Type: Method.
// Args: None.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
// Throws: None.
//--
bool
CMICmnLLDBDebugSessionInfoVarObj::SetVarFormat(const varFormat_e veVarFormat)
{
if (veVarFormat >= eVarFormat_count)
return MIstatus::failure;
m_eVarFormat = veVarFormat;
UpdateValue();
return MIstatus::success;
}
//++ ------------------------------------------------------------------------------------
// Details: Update *this var obj. Update it's value and type.
// Type: Method.
// Args: None.
// Returns: None.
// Throws: None.
//--
void
CMICmnLLDBDebugSessionInfoVarObj::UpdateValue(void)
{
m_strFormattedValue = CMICmnLLDBDebugSessionInfoVarObj::GetValueStringFormatted(m_SBValue, m_eVarFormat);
MIuint64 nValue = 0;
if (CMICmnLLDBProxySBValue::GetValueAsUnsigned(m_SBValue, nValue) == MIstatus::failure)
m_eVarType = eVarType_Composite;
CMICmnLLDBDebugSessionInfoVarObj::VarObjUpdate(*this);
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the enumeration type of the var object.
// Type: Method.
// Args: None.
// Returns: varType_e - Enumeration value.
// Throws: None.
//--
CMICmnLLDBDebugSessionInfoVarObj::varType_e
CMICmnLLDBDebugSessionInfoVarObj::GetType(void) const
{
return m_eVarType;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the parent var object's name, the parent var object to *this var
// object (if assigned). The parent is equivalent to LLDB SBValue variable's
// parent.
// Type: Method.
// Args: None.
// Returns: CMIUtilString & - Pointer to var object, NULL = no parent.
// Throws: None.
//--
const CMIUtilString &
CMICmnLLDBDebugSessionInfoVarObj::GetVarParentName(void) const
{
return m_strVarObjParentName;
}