public int EnumFrameInfo(enum_FRAMEINFO_FLAGS dwFieldSpec, uint nRadix, out IEnumDebugFrameInfo2 ppEnum) { DebugHelper.TraceEnteringMethod(); StackFrame[] stackFrames = ThreadMirror.GetFrames(); ppEnum = new AD7FrameInfoEnum(stackFrames.Select(x => new AD7StackFrame(_engine, this, x).GetFrameInfo(dwFieldSpec)).ToArray()); return(VSConstants.S_OK); }
// Retrieves a list of the stack frames for this thread. // For the sample engine, enumerating the stack frames requires walking the callstack in the debuggee for this thread // and coverting that to an implementation of IEnumDebugFrameInfo2. // Real engines will most likely want to cache this information to avoid recomputing it each time it is asked for, // and or construct it on demand instead of walking the entire stack. int IDebugThread2.EnumFrameInfo(enum_FRAMEINFO_FLAGS dwFieldSpec, uint nRadix, out IEnumDebugFrameInfo2 enumObject) { enumObject = null; try { // get the thread's stack frames System.Collections.Generic.List <ThreadContext> stackFrames = null; _engine.DebuggedProcess.WorkerThread.RunOperation(async() => stackFrames = await _engine.DebuggedProcess.ThreadCache.StackFrames(_debuggedThread)); int numStackFrames = stackFrames != null ? stackFrames.Count : 0; FRAMEINFO[] frameInfoArray; if (numStackFrames == 0) { // failed to walk any frames. Return an empty stack. frameInfoArray = new FRAMEINFO[0]; } else { uint low = stackFrames[0].Level; uint high = stackFrames[stackFrames.Count - 1].Level; FilterUnknownFrames(stackFrames); numStackFrames = stackFrames.Count; frameInfoArray = new FRAMEINFO[numStackFrames]; List <ArgumentList> parameters = null; if ((dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS) != 0) { _engine.DebuggedProcess.WorkerThread.RunOperation(async() => parameters = await _engine.DebuggedProcess.GetParameterInfoOnly(this, (dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS_VALUES) != 0, (dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS_TYPES) != 0, low, high)); } for (int i = 0; i < numStackFrames; i++) { var p = parameters != null?parameters.Find((ArgumentList t) => t.Item1 == stackFrames[i].Level) : null; AD7StackFrame frame = new AD7StackFrame(_engine, this, stackFrames[i]); frame.SetFrameInfo(dwFieldSpec, out frameInfoArray[i], p != null ? p.Item2 : null); } } enumObject = new AD7FrameInfoEnum(frameInfoArray); return(Constants.S_OK); } catch (MIException e) { return(e.HResult); } catch (Exception e) { return(EngineUtils.UnexpectedException(e)); } }