internal State(SourceLocation location, string name, IEnumerable<LocalsItemDescription> earlyLocals, int numberOfEarlyLocals)
{
this.location = location;
this.name = name;
this.earlyLocals = earlyLocals;
this.numberOfEarlyLocals = (earlyLocals == null) ? 0 : numberOfEarlyLocals;
}
private void SetLocation(object instance, SourceLocation location)
{
if (location != null)
{
XamlDebuggerXmlReader.SetFileName(instance, location.FileName);
XamlDebuggerXmlReader.SetStartLine(instance, location.StartLine);
XamlDebuggerXmlReader.SetStartColumn(instance, location.StartColumn);
XamlDebuggerXmlReader.SetEndLine(instance, location.EndLine);
XamlDebuggerXmlReader.SetEndColumn(instance, location.EndColumn);
}
}
internal void UpdateMap(object key, SourceLocation sourceLocation)
{
if (this.deserializedObjectToSourceLocationMapping.ContainsKey(key))
{
this.deserializedObjectToSourceLocationMapping.Remove(key);
}
this.deserializedObjectToSourceLocationMapping.Add(key, new SourceLocation(/* fileName = */ null,
sourceLocation.StartLine, sourceLocation.StartColumn,
sourceLocation.EndLine, sourceLocation.EndColumn));
}
internal static bool Contains(this SourceLocation outer, SourceLocation inner)
{
Fx.Assert(inner != null && outer != null, "Argument should not be null");
if ((inner.StartLine > outer.StartLine || (inner.StartLine == outer.StartLine && inner.StartColumn >= outer.StartColumn))
&& (inner.EndLine < outer.EndLine || (inner.EndLine == outer.EndLine && inner.EndColumn <= outer.EndColumn)))
{
return true;
}
return false;
}
internal State(SourceLocation location, string name, IEnumerable<LocalsItemDescription> earlyLocals, int numberOfEarlyLocals)
{
// If we are running in Partial Trust, validate the name string. We only do this in partial trust for backward compatability.
// We are doing the validation because we want to prevent anything passed to us by non-critical code from affecting the generation
// of the code to the dynamic assembly we are creating.
if (!PartialTrustHelpers.AppDomainFullyTrusted)
{
this.name = ValidateIdentifierString(name);
this.location = ValidateSourceLocation(location);
}
else
{
this.location = location;
this.name = name;
}
this.earlyLocals = earlyLocals;
Fx.Assert(earlyLocals != null || numberOfEarlyLocals == 0,
"If earlyLocals is null then numberOfEarlyLocals should be 0");
// Ignore the passed numberOfEarlyLocals if earlyLocal is null.
this.numberOfEarlyLocals = (earlyLocals == null) ? 0 : numberOfEarlyLocals;
}
internal State DefineState(SourceLocation location, string name, LocalsItemDescription[] earlyLocals, int numberOfEarlyLocals)
{
return this.dynamicModuleManager.DefineState(location, name, earlyLocals, numberOfEarlyLocals);
}
private static ModelItem FindModelItemInMap(SourceLocation sourceLocation, IDictionary<SourceLocation, ModelItem> map)
{
SourceLocation exactSourceLocation = GetExactLocation(sourceLocation, map);
if (exactSourceLocation == null)
{
return null;
}
return map[exactSourceLocation];
}
/// <summary>
/// Initializes a new instance of the SourceLocationUpdatedEventArgs class.
/// </summary>
/// <param name="objectReference">The Guid of the ObjectReference that changed.</param>
/// <param name="updatedSourceLocation">The updated SourceLocation.</param>
public SourceLocationUpdatedEventArgs(Guid objectReference, SourceLocation updatedSourceLocation)
{
this.ObjectReference = objectReference;
this.UpdatedSourceLocation = updatedSourceLocation;
}
// Update the appearance of a given breakpoint to show the given type.
public void UpdateBreakpoint(SourceLocation sourceLocation, BreakpointTypes newBreakpointType)
{
ModelItem modelItem = this.GetModelItemFromSourceLocation(sourceLocation);
if (modelItem != null)
{
SetBreakpointType(modelItem, newBreakpointType);
}
else
{
BreakpointTypes oldBreakpointType;
if (this.unmappedBreakpoints.TryGetValue(sourceLocation, out oldBreakpointType))
{
if (newBreakpointType == BreakpointTypes.None)
{
this.unmappedBreakpoints.Remove(sourceLocation);
}
else
{
this.unmappedBreakpoints[sourceLocation] = newBreakpointType;
}
}
else if (newBreakpointType != BreakpointTypes.None)
{
this.unmappedBreakpoints.Add(sourceLocation, newBreakpointType);
}
}
}
// Inserting a new breakpoint of a given type.
public void InsertBreakpoint(SourceLocation sourceLocation, BreakpointTypes breakpointType)
{
this.UpdateBreakpoint(sourceLocation, breakpointType);
}
internal static SourceLocation FindClosestSourceLocation(SourceLocation approximateLocation, IEnumerable<SourceLocation> availableSourceLocations)
{
Fx.Assert(approximateLocation != null && availableSourceLocations != null, "Argument should not be null");
SourceLocation exactLocation = null;
SourceLocation innerMostOuterSourceLocation =
FindInnerMostContainer(approximateLocation, availableSourceLocations);
if (innerMostOuterSourceLocation != null)
{
exactLocation = innerMostOuterSourceLocation;
}
else
{
// Find the next line of the approximateLocation.
int minimumDistance = int.MaxValue;
foreach (SourceLocation sourceLocation in availableSourceLocations)
{
int lineDistance = sourceLocation.StartLine - approximateLocation.StartLine;
if ((lineDistance > 0) &&
((lineDistance < minimumDistance) ||
((lineDistance == minimumDistance) && (sourceLocation.StartColumn < exactLocation.StartColumn)))) // if same distance, then compare the start column
{
exactLocation = sourceLocation;
minimumDistance = lineDistance;
}
}
}
return exactLocation;
}
// This method tries to find the inner most outer source location from a list
// The outer source locations of a source location is ones that contains it
// The inner most outer source location is the one nested most deeply, right outside of the source location being contained.
private static SourceLocation FindInnerMostContainer(SourceLocation approximateLocation, IEnumerable<SourceLocation> availableSourceLocations)
{
Fx.Assert(approximateLocation != null && availableSourceLocations != null, "Argument should not be null");
SourceLocation innerMostOuterSourceLocation = null;
foreach (SourceLocation sourceLocation in availableSourceLocations)
{
if (sourceLocation.Contains(approximateLocation))
{
if (innerMostOuterSourceLocation == null)
{
innerMostOuterSourceLocation = sourceLocation;
}
else
{
if (innerMostOuterSourceLocation.Contains(sourceLocation))
{
innerMostOuterSourceLocation = sourceLocation;
}
}
}
}
return innerMostOuterSourceLocation;
}
// Declare a new state associated with the given source location.
// States should have disjoint source locations.
// location is Source location associated with this state.
// This returns a state object, which can be passed to EnterState.
internal State DefineState(SourceLocation location)
{
return(DefineState(location, string.Empty, null, 0));
}
internal State DefineStateWithDebugInfo(SourceLocation location, string name)
{
return(DefineState(location, name, debugInfoDescriptions, debugInfoDescriptions.Length));
}
internal State DefineState(SourceLocation location, string name, LocalsItemDescription[] earlyLocals, int numberOfEarlyLocals)
{
return(this.dynamicModuleManager.DefineState(location, name, earlyLocals, numberOfEarlyLocals));
}
public State DefineState(SourceLocation location, string name, LocalsItemDescription[] earlyLocals, int numberOfEarlyLocals)
{
State state;
lock (this)
{
if (!this.stateMap.TryGetValue(location, out state))
{
lock (this)
{
state = new State(location, name, earlyLocals, numberOfEarlyLocals);
this.stateMap.Add(location, state);
this.states.Add(state);
}
}
}
return state;
}
internal State DefineState(SourceLocation location, string name)
{
return(DefineState(location, name, null, 0));
}
// Delete a breakpoint.
public void DeleteBreakpoint(SourceLocation sourceLocation)
{
UpdateBreakpoint(sourceLocation, BreakpointTypes.None);
}
SourceLocation ValidateSourceLocation(SourceLocation input)
{
bool returnNewLocation = false;
string newFileName = input.FileName;
if (string.IsNullOrWhiteSpace(newFileName))
{
this.DebuggingEnabled = false;
Trace.WriteLine(SR.DebugInstrumentationFailed(SR.InvalidFileName(this.name)));
return input;
}
// There was some validation of the column and line number already done in the SourceLocation constructor.
// We are going to limit line and column numbers to Int16.MaxValue
if ((input.StartLine > Int16.MaxValue) || (input.EndLine > Int16.MaxValue))
{
this.DebuggingEnabled = false;
Trace.WriteLine(SR.DebugInstrumentationFailed(SR.LineNumberTooLarge(this.name)));
return input;
}
if ((input.StartColumn > Int16.MaxValue) || (input.EndColumn > Int16.MaxValue))
{
this.DebuggingEnabled = false;
Trace.WriteLine(SR.DebugInstrumentationFailed(SR.ColumnNumberTooLarge(this.name)));
return input;
}
// Truncate at 255 characters.
if (newFileName.Length > 255)
{
newFileName = newFileName.Substring(0, 255);
returnNewLocation = true;
}
if (ReplaceInvalidCharactersWithUnderscore(ref newFileName, Path.GetInvalidPathChars()))
{
returnNewLocation = true;
}
string fileNameOnly = Path.GetFileName(newFileName);
if (ReplaceInvalidCharactersWithUnderscore(ref fileNameOnly, Path.GetInvalidFileNameChars()))
{
// The filename portion has been munged. We need to make a new full name.
string path = Path.GetDirectoryName(newFileName);
newFileName = path + "\\" + fileNameOnly;
returnNewLocation = true;
}
if (returnNewLocation)
{
return new SourceLocation(newFileName, input.StartLine, input.StartColumn, input.EndLine, input.EndColumn);
}
return input;
}
private static bool IsUnresolved(SourceLocation sourceLocation)
{
return !string.IsNullOrEmpty(sourceLocation.FileName) && sourceLocation.FileName.StartsWith(unresolvedPrefix, StringComparison.OrdinalIgnoreCase);
}
// This method reads a ViewStateData node from the xaml nodestream. It outputs the Id property into viewStateId
// and the attached viewstate related properties in viewStateNodes. The input reader is positioned on a
// ViewStateData node within ViewStateManager.
static void ReadViewState(XamlType viewStateType, XamlReader xamlReader, out string viewStateId, out XamlNodeList viewStateNodes, out SourceLocation sourceLocation)
{
int globalMemberLevel = 0;
bool skippingUnexpectedAttachedProperty = false;
int skippingUnexpectedAttachedPropertyLevel = 0;
viewStateId = null;
viewStateNodes = new XamlNodeList(viewStateType.SchemaContext);
sourceLocation = null;
Stack<Frame> objectNodes = new Stack<Frame>();
XamlMember idMember = new XamlMember(typeof(ViewStateData).GetProperty("Id"), xamlReader.SchemaContext);
int[] viewStateDataSourceLocation = new int[4];
int sourceLocationIndex = -1;
IXamlLineInfo lineInfo = xamlReader as IXamlLineInfo;
IXamlLineInfoConsumer lineInfoComsumer = viewStateNodes.Writer as IXamlLineInfoConsumer;
bool shouldPassLineInfo = lineInfo != null && lineInfo.HasLineInfo && lineInfoComsumer != null && lineInfoComsumer.ShouldProvideLineInfo;
while (xamlReader.Read())
{
bool skipWritingToNodeList = false;
switch (xamlReader.NodeType)
{
case XamlNodeType.StartObject:
if (xamlReader.Type.Equals(viewStateType))
{
skipWritingToNodeList = true;
}
objectNodes.Push(new Frame { Type = xamlReader.Type });
break;
case XamlNodeType.GetObject:
objectNodes.Push(new Frame { Type = null });
break;
case XamlNodeType.StartMember:
globalMemberLevel++;
if (xamlReader.Member.Equals(idMember))
{
XamlReader idNode = xamlReader.ReadSubtree();
while (idNode.Read())
{
if (idNode.NodeType == XamlNodeType.Value)
{
viewStateId = idNode.Value as string;
}
}
}
else if (globalMemberLevel == 1 && !IsAttachablePropertyForConvert(xamlReader))
{
skippingUnexpectedAttachedProperty = true;
}
if (skippingUnexpectedAttachedProperty)
{
skippingUnexpectedAttachedPropertyLevel++;
}
sourceLocationIndex = GetViewStateDataSourceLocationIndexFromCurrentReader(xamlReader);
break;
case XamlNodeType.EndMember:
globalMemberLevel--;
if (skippingUnexpectedAttachedProperty)
{
skippingUnexpectedAttachedPropertyLevel--;
}
break;
case XamlNodeType.Value:
if (xamlReader.Value is int
&& sourceLocationIndex >= 0
&& sourceLocationIndex < viewStateDataSourceLocation.Length)
{
viewStateDataSourceLocation[sourceLocationIndex] = (int)xamlReader.Value;
}
break;
case XamlNodeType.EndObject:
Frame objectNode = objectNodes.Pop();
if (objectNode.Type != null && objectNode.Type.Equals(viewStateType))
{
skipWritingToNodeList = true;
// The ViewStateData's source location should be valid, because
// before each EndObject, its SourceLocation is injected.
// If not, an exception will be thrown from constructor
// of SourceLocation.
sourceLocation = new SourceLocation(null,
viewStateDataSourceLocation[0],
viewStateDataSourceLocation[1],
viewStateDataSourceLocation[2],
viewStateDataSourceLocation[3]
);
}
Array.Clear(viewStateDataSourceLocation, 0, viewStateDataSourceLocation.Length);
break;
};
if (!skipWritingToNodeList && !skippingUnexpectedAttachedProperty)
{
if (shouldPassLineInfo)
{
lineInfoComsumer.SetLineInfo(lineInfo.LineNumber, lineInfo.LinePosition);
}
viewStateNodes.Writer.WriteNode(xamlReader);
}
if (skippingUnexpectedAttachedPropertyLevel == 0)
{
skippingUnexpectedAttachedProperty = false;
}
}
viewStateNodes.Writer.Close();
}
private void EnsureSourceLocationUpdated()
{
Fx.Assert(this.modelSearchService != null, "ModelSearchService should be available and is ensured in WorkflowDesigner constructor");
if (this.requiresUpdateSourceLocation)
{
Dictionary<object, SourceLocation> updatedSourceLocations = new Dictionary<object, SourceLocation>();
foreach (ModelItem key in this.modelSearchService.GetObjectsWithSourceLocation())
{
// disallow expressions
if (AllowBreakpointAttribute.IsBreakpointAllowed(key.ItemType) && !typeof(IValueSerializableExpression).IsAssignableFrom(key.ItemType))
{
SourceLocation sourceLocationWithoutFileName = this.modelSearchService.FindSourceLocation(key);
// Appending the fileName
SourceLocation sourceLocationWithFileName = new SourceLocation(this.fileName,
sourceLocationWithoutFileName.StartLine,
sourceLocationWithoutFileName.StartColumn,
sourceLocationWithoutFileName.EndLine,
sourceLocationWithoutFileName.EndColumn);
updatedSourceLocations.Add(key.GetCurrentValue(), sourceLocationWithFileName);
}
}
this.UpdateSourceLocations(updatedSourceLocations);
this.requiresUpdateSourceLocation = false;
}
}
// get the minimum source location which contains this source location and is in the mapping store.
private static SourceLocation GetExactLocation(SourceLocation approximateLocation, IDictionary<SourceLocation, ModelItem> mapping)
{
SourceLocation candidate = null;
foreach (SourceLocation srcLocation in mapping.Keys)
{
// in the scope?
if (srcLocation.Contains(approximateLocation))
{
if (candidate != null)
{
// More approximate?
if (candidate.Contains(srcLocation))
{
candidate = srcLocation;
}
}
else
{
candidate = srcLocation;
}
}
}
return candidate;
}
private ModelItem GetModelItemFromSourceLocation(SourceLocation sourceLocation)
{
return GetModelItemFromSourceLocation(sourceLocation, /* forceCreate = */ false);
}
// find a modelitem whose SourceLocation contains the srcLocation passed in.
internal ModelItem FindModelItem(SourceLocation srcLocation)
{
this.EnsureUpdated();
return FindModelItemInMap(srcLocation, this.sourceLocationToModelItemMapping);
}
private ModelItem GetModelItemFromSourceLocation(SourceLocation sourceLocation, bool forceCreate)
{
ModelItem modelItem = null;
if (sourceLocation != null)
{
if (!this.sourceLocationToModelItem.TryGetValue(sourceLocation, out modelItem))
{
if (forceCreate)
{
object foundElement = null;
foreach (KeyValuePair<object, SourceLocation> kvp in this.instanceToSourceLocationMapping)
{
if (kvp.Value.Equals(sourceLocation))
{
foundElement = kvp.Key;
break;
}
}
if (foundElement != null)
{
modelItem = Validation.ValidationService.FindModelItem(this.modelTreeManager, foundElement);
if (modelItem != null)
{
this.modelItemToSourceLocation.Add(modelItem, sourceLocation);
this.sourceLocationToModelItem.Add(sourceLocation, modelItem);
}
}
}
}
}
return modelItem;
}
void Instrument(Activity activity, SourceLocation sourceLocation, string name)
{
Fx.Assert(activity != null, "activity can't be null");
Fx.Assert(sourceLocation != null, "sourceLocation can't be null");
if (this.states.ContainsKey(activity))
{
Trace.WriteLine(SR.DuplicateInstrumentation(activity.DisplayName));
}
else
{
State activityState = this.stateManager.DefineStateWithDebugInfo(sourceLocation, name);
this.states.Add(activity, activityState);
}
}
void ShowDebug(SourceLocation srcLoc)
{
this.Dispatcher.Invoke(DispatcherPriority.Render
, (Action)(() =>
{
this.WorkflowDesigner.DebugManagerView.CurrentLocation = srcLoc;
}));
}
internal State DefineState(SourceLocation location, string name)
{
return DefineState(location, name, null, 0);
}
public ModelItem FindModelItemOfViewState(int startLine, int startColumn, int endLine, int endColumn)
{
SourceLocation sourceLocation = new SourceLocation(/* fileName = */ null, startLine, startColumn, endLine, endColumn);
return designer.ObjectToSourceLocationMapping.FindModelItemOfViewState(sourceLocation);
}
internal State DefineStateWithDebugInfo(SourceLocation location, string name)
{
return DefineState(location, name, debugInfoDescriptions, debugInfoDescriptions.Length);
}
private void OnValueNodeDeserialized(object value, DocumentRange attributeValueLocation)
{
int startLine = attributeValueLocation.Start.LineNumber.Value;
int startColumn = attributeValueLocation.Start.LinePosition.Value;
int endLine = attributeValueLocation.End.LineNumber.Value;
int endColumn = attributeValueLocation.End.LinePosition.Value;
// XamlDebuggerXmlReader has no idea what the filename is (it only knew a stream of data)
// So we set FileName = null.
// To enhance visual selection, endColumn + 1
SourceLocation valueLocation = new SourceLocation(null, startLine, startColumn, endLine, endColumn + 1);
this.NotifySourceLocationFound(value, valueLocation, isValueNode: true);
}
// Declare a new state associated with the given source location.
// States should have disjoint source locations.
// location is Source location associated with this state.
// This returns a state object, which can be passed to EnterState.
internal State DefineState(SourceLocation location)
{
return DefineState(location, string.Empty, null, 0);
}
private void NotifySourceLocationFound(object instance, SourceLocation currentLocation, bool isValueNode)
{
Argument argumentInstance = instance as Argument;
// For Argument containing an IValueSerializable expression serializing as a ValueNode.
// We associate the SourceLocation to the expression instead of the Argument.
// For example, when we have <WriteLine Text="[abc]" />, Then the SourceLocation found for the InArgument object
// is associated with the VisualBasicValue object instead.
if (argumentInstance != null && argumentInstance.Expression is IValueSerializableExpression && isValueNode)
{
instance = argumentInstance.Expression;
}
if (this._sourceLocationFound != null)
{
this._sourceLocationFound(this, new SourceLocationFoundEventArgs(instance, currentLocation, isValueNode));
}
}
