public static int GetCurrentSequencePointForGeneratorFrame(DebugFrame frame)
{
Debug.Assert(frame != null);
Debug.Assert(frame.Generator != null);
return(frame.CurrentLocationCookie);
}
public static int GetCurrentSequencePointForLeafGeneratorFrame(DebugThread thread)
{
DebugFrame frame = thread.GetLeafFrame();
Debug.Assert(frame.Generator != null);
return(frame.CurrentLocationCookie);
}
internal override bool TryGetLeafFrame(ref DebugFrame frame) {
if (_frames.Count > 0) {
frame = _frames[_frames.Count - 1].Frame;
return frame != null;
} else {
frame = null;
return false;
}
}
public static bool IsCurrentLeafFrameRemappingToGenerator(DebugThread thread)
{
DebugFrame frame = null;
if (thread.TryGetLeafFrame(ref frame))
{
return(frame.ForceSwitchToGeneratorLoop);
}
return(false);
}
internal override bool TryGetLeafFrame(ref DebugFrame frame)
{
if (_frames.Count > 0)
{
frame = _frames[_frames.Count - 1].Frame;
return(frame != null);
}
frame = null;
return(false);
}
public bool CanSetNextStatement(string sourceFile, SourceSpan sourceSpan)
{
VerifyNotClosed();
ContractUtils.RequiresNotNull(sourceFile, "sourceFile");
ContractUtils.Requires(sourceSpan != SourceSpan.Invalid && sourceSpan != SourceSpan.None, ErrorStrings.InvalidSourceSpan);
// Find the thread object. We also check if the current thread is in FrameExit traceback.
DebugFrame traceFrame = _traceFrame.Value;
if (traceFrame == null)
{
return(false);
}
return(GetSequencePointIndexForSourceSpan(sourceFile, sourceSpan, traceFrame) != Int32.MaxValue);
}
void IDebugCallback.OnDebugEvent(TraceEventKind kind, DebugThread thread, FunctionInfo functionInfo, int sequencePointIndex, int stackDepth, object payload)
{
ITraceCallback traceCallback = _traceCallback;
if (traceCallback != null)
{
// $TODO: what if the callback throws an exception? should we swallow it?
var curThread = _traceFrame.Value;
try {
if (kind == TraceEventKind.FrameExit || kind == TraceEventKind.ThreadExit)
{
traceCallback.OnTraceEvent(
kind,
kind == TraceEventKind.FrameExit ? functionInfo.Name : null,
null,
SourceSpan.None,
null,
payload,
functionInfo != null ? functionInfo.CustomPayload : null
);
}
else
{
DebugFrame leafFrame = thread.GetLeafFrame();
_traceFrame.Value = leafFrame;
Debug.Assert(sequencePointIndex >= 0 && sequencePointIndex < functionInfo.SequencePoints.Length);
DebugSourceSpan sourceSpan = functionInfo.SequencePoints[sequencePointIndex];
traceCallback.OnTraceEvent(
kind,
functionInfo.Name,
sourceSpan.SourceFile.Name,
sourceSpan.ToDlrSpan(),
() => { return(leafFrame.GetLocalsScope()); },
payload,
functionInfo.CustomPayload
);
}
} finally {
_traceFrame.Value = curThread;
}
}
}
internal override FunctionInfo GetLeafFrameFunctionInfo(out int stackDepth)
{
int leafIndex = _frames.Count - 1;
if (leafIndex >= 0)
{
stackDepth = leafIndex;
DebugFrame leafFrame = _frames[leafIndex].Frame;
if (leafFrame != null)
{
Debug.Assert(leafIndex == leafFrame.StackDepth);
return(leafFrame.FunctionInfo);
}
Debug.Assert(_frames[leafIndex].RuntimeVariables is IDebugRuntimeVariables);
return(((IDebugRuntimeVariables)_frames[leafIndex].RuntimeVariables).FunctionInfo);
}
stackDepth = Int32.MaxValue;
return(null);
}
public void SetNextStatement(string sourceFile, SourceSpan sourceSpan)
{
VerifyNotClosed();
ContractUtils.RequiresNotNull(sourceFile, "sourceFile");
ContractUtils.Requires(sourceSpan != SourceSpan.Invalid && sourceSpan != SourceSpan.None, ErrorStrings.InvalidSourceSpan);
// Find the thread object
DebugFrame traceFrame = _traceFrame.Value;
if (traceFrame == null)
{
throw new InvalidOperationException(ErrorStrings.SetNextStatementOnlyAllowedInsideTraceback);
}
int sequencePointIndex = GetSequencePointIndexForSourceSpan(sourceFile, sourceSpan, traceFrame);
if (sequencePointIndex == Int32.MaxValue)
{
throw new InvalidOperationException(ErrorStrings.InvalidSourceSpan);
}
traceFrame.CurrentSequencePointIndex = sequencePointIndex;
}
private DebugFrame GetFrame(int index)
{
DebugFrame frame = null;
if (index >= 0)
{
frame = _frames[index].Frame;
if (frame == null)
{
IDebugRuntimeVariables runtimeVariables = _frames[index].RuntimeVariables as IDebugRuntimeVariables;
Debug.Assert(runtimeVariables != null);
frame = new DebugFrame(this, runtimeVariables.FunctionInfo, runtimeVariables, index);
_frames[index] = new FrameRuntimeVariablesPair(null, frame);
}
}
if (index == _frames.Count - 1)
{
frame.IsInTraceback = IsInTraceback;
frame.ThrownException = ThrownException;
}
return(frame);
}
internal abstract void PushExistingFrame(DebugFrame frame);
public FrameRuntimeVariablesPair(IRuntimeVariables runtimeVariables, DebugFrame frame)
{
RuntimeVariables = runtimeVariables;
Frame = frame;
}
private DebugFrame GetFrame(int index)
{
DebugFrame frame = null;
if (index >= 0) {
frame = _frames[index].Frame;
if (frame == null) {
IDebugRuntimeVariables runtimeVariables = _frames[index].RuntimeVariables as IDebugRuntimeVariables;
Debug.Assert(runtimeVariables != null);
frame = new DebugFrame(this, runtimeVariables.FunctionInfo, runtimeVariables, index);
_frames[index] = new FrameRuntimeVariablesPair(null, frame);
}
}
if (index == _frames.Count - 1) {
frame.IsInTraceback = IsInTraceback;
frame.ThrownException = ThrownException;
}
return frame;
}
internal override void PushExistingFrame(DebugFrame frame)
{
_frames.Add(new FrameRuntimeVariablesPair(null, frame));
}
internal override void PushExistingFrame(DebugFrame frame)
{
_frames.Add(new FrameRuntimeVariablesPair(null, frame));
}
public static IEnumerator <T> CreateDebugGenerator <T>(DebugFrame frame)
{
return(new DebugGenerator <T>(frame));
}
public static void ReplaceLiftedLocals(DebugFrame frame, IRuntimeVariables liftedLocals)
{
frame.ReplaceLiftedLocals(liftedLocals);
}
public static DebugThread GetThread(DebugFrame frame)
{
return(frame.Thread);
}
internal abstract bool TryGetLeafFrame(ref DebugFrame frame);
internal DebugGenerator(DebugFrame frame)
{
_frame = frame;
_frame.RemapToGenerator(frame.FunctionInfo.Version);
}
internal abstract bool TryGetLeafFrame(ref DebugFrame frame);
public FrameRuntimeVariablesPair(IRuntimeVariables runtimeVariables, DebugFrame frame)
{
RuntimeVariables = runtimeVariables;
Frame = frame;
}
internal abstract void PushExistingFrame(DebugFrame frame);
private int GetSequencePointIndexForSourceSpan(string sourceFile, SourceSpan sourceSpan, DebugFrame frame) {
DebugSourceFile debugSourceFile = _debugContext.Lookup(sourceFile);
if (debugSourceFile == null) {
return Int32.MaxValue;
}
DebugSourceSpan debugSourceSpan = new DebugSourceSpan(debugSourceFile, sourceSpan);
FunctionInfo leafFrameFuncInfo = frame.FunctionInfo;
FunctionInfo funcInfo = debugSourceFile.LookupFunctionInfo(debugSourceSpan);
// Verify that funcInfo matches the current frame
if (funcInfo != leafFrameFuncInfo) {
return Int32.MaxValue;
}
// Get the target sequence point
return debugSourceSpan.GetSequencePointIndex(funcInfo);
}
private int GetSequencePointIndexForSourceSpan(string sourceFile, SourceSpan sourceSpan, DebugFrame frame)
{
DebugSourceFile debugSourceFile = _debugContext.Lookup(sourceFile);
if (debugSourceFile == null)
{
return(Int32.MaxValue);
}
DebugSourceSpan debugSourceSpan = new DebugSourceSpan(debugSourceFile, sourceSpan);
FunctionInfo leafFrameFuncInfo = frame.FunctionInfo;
FunctionInfo funcInfo = debugSourceFile.LookupFunctionInfo(debugSourceSpan);
// Verify that funcInfo matches the current frame
if (funcInfo != leafFrameFuncInfo)
{
return(Int32.MaxValue);
}
// Get the target sequence point
return(debugSourceSpan.GetSequencePointIndex(funcInfo));
}