// Retrieves a list of all code contexts associated with this document context.
// The engine sample only supports one code context per document context and
// the code contexts are always memory addresses.
int IDebugDocumentContext2.EnumCodeContexts(out IEnumDebugCodeContexts2 ppEnumCodeCxts)
{
var codeContexts = new AD7MemoryAddress[1];
codeContexts[0] = _codeContext;
ppEnumCodeCxts = new AD7CodeContextEnum(codeContexts);
return VSConstants.S_OK;
}
// Gets the breakpoint resolution information that describes this breakpoint.
int IDebugBreakpointResolution2.GetResolutionInfo(enum_BPRESI_FIELDS dwFields, BP_RESOLUTION_INFO[] pBPResolutionInfo)
{
if ((dwFields & enum_BPRESI_FIELDS.BPRESI_BPRESLOCATION) != 0)
{
// The sample engine only supports code breakpoints.
var location = new BP_RESOLUTION_LOCATION();
location.bpType = (uint) enum_BP_TYPE.BPT_CODE;
// The debugger will not QI the IDebugCodeContex2 interface returned here. We must pass the pointer
// to IDebugCodeContex2 and not IUnknown.
var codeContext = new AD7MemoryAddress(m_engine, m_address.Filename, (uint) m_address.Line);
codeContext.SetDocumentContext(m_documentContext);
location.unionmember1 = Marshal.GetComInterfaceForObject(codeContext, typeof (IDebugCodeContext2));
pBPResolutionInfo[0].bpResLocation = location;
pBPResolutionInfo[0].dwFields |= enum_BPRESI_FIELDS.BPRESI_BPRESLOCATION;
}
if ((dwFields & enum_BPRESI_FIELDS.BPRESI_PROGRAM) != 0)
{
pBPResolutionInfo[0].pProgram = m_engine;
pBPResolutionInfo[0].dwFields |= enum_BPRESI_FIELDS.BPRESI_PROGRAM;
}
return VSConstants.S_OK;
}
public AD7DocumentContext(string fileName, TEXT_POSITION begPos, TEXT_POSITION endPos, AD7MemoryAddress codeContext)
{
_fileName = fileName;
_begPos = begPos;
_endPos = endPos;
_codeContext = codeContext;
}
// Get the document context for this pending breakpoint. A document context is a abstract representation of a source file
// location.
public AD7DocumentContext GetDocumentContext(NodeBreakpoint address)
{
var docPosition = (IDebugDocumentPosition2) (Marshal.GetObjectForIUnknown(_bpRequestInfo.bpLocation.unionmember2));
string documentName;
EngineUtils.CheckOk(docPosition.GetFileName(out documentName));
// Get the location in the document that the breakpoint is in.
var startPosition = new TEXT_POSITION[1];
var endPosition = new TEXT_POSITION[1];
EngineUtils.CheckOk(docPosition.GetRange(startPosition, endPosition));
var codeContext = new AD7MemoryAddress(_engine, documentName, startPosition[0].dwLine);
return new AD7DocumentContext(documentName, startPosition[0], startPosition[0], codeContext);
}
// Gets the code context for this stack frame. The code context represents the current instruction pointer in this stack frame.
int IDebugStackFrame2.GetCodeContext(out IDebugCodeContext2 memoryAddress)
{
memoryAddress = new AD7MemoryAddress(_engine, _stackFrame.FileName, (uint) _stackFrame.Line, _stackFrame);
return VSConstants.S_OK;
}
// Gets the code context for this stack frame. The code context represents the current instruction pointer in this stack frame.
int IDebugStackFrame2.GetCodeContext(out IDebugCodeContext2 memoryAddress)
{
memoryAddress = new AD7MemoryAddress(_engine, _stackFrame.FileName, (uint)_stackFrame.Line, _stackFrame);
return(VSConstants.S_OK);
}
public int Add(ulong dwCount, out IDebugMemoryContext2 newAddress)
{
newAddress = new AD7MemoryAddress(_engine, _filename, (uint) dwCount + _lineNo);
return VSConstants.S_OK;
}
// Subtracts a specified value from the current context's address to create a new context.
public int Subtract(ulong dwCount, out IDebugMemoryContext2 ppMemCxt)
{
ppMemCxt = new AD7MemoryAddress(_engine, _filename, (uint) dwCount - _lineNo);
return VSConstants.S_OK;
}
public AD7DocumentContext(string fileName, TEXT_POSITION begPos, TEXT_POSITION endPos, AD7MemoryAddress codeContext)
{
_fileName = fileName;
_begPos = begPos;
_endPos = endPos;
_codeContext = codeContext;
}