Dictionary <object, SourceLocation> GetErrorInformation(Activity activity)
{
Dictionary <object, SourceLocation> sourceLocations = null;
Activity implementationRoot = null;
IEnumerable <Activity> children = WorkflowInspectionServices.GetActivities(activity);
foreach (Activity child in children)
{
// Check if the child is the root of the activity's implementation
// When an activity is an implementation child of another activity, the IDSpace for
// the implementation child is different than it's parent activity and parent's public
// children. The IDs for activities in the root activity's IDSpace are 1, 2
// etc and for the root implementation child it is 1.1 and for its implementation
// child it is 1.1.1 and so on.
// As the activity can have just one implementation root, we just check
// for '.' to identify the root of the implementation.
if (child.Id.Contains("."))
{
implementationRoot = child;
break;
}
}
if (implementationRoot == null)
{
return(sourceLocations);
}
// We use the workflow debug symbol to get the line and column number information for a
// erroneous activity.
// We do not rely on the workflow debug symbol to get the file name. This is to enable cases
// where the xaml was hand written outside of the workflow designer. The hand written xaml
// file will not have the workflow debug symbol unless it was saved in the workflow designer.
string symbolString = DebugSymbol.GetSymbol(implementationRoot) as String;
if (!string.IsNullOrEmpty(symbolString))
{
try
{
WorkflowSymbol wfSymbol = WorkflowSymbol.Decode(symbolString);
if (wfSymbol != null)
{
sourceLocations = SourceLocationProvider.GetSourceLocations(activity, wfSymbol);
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
// Ignore invalid symbol.
}
}
return(sourceLocations);
}
// Collect subroot as uninstrumented activity.
void CollectSubRoot(Activity activity)
{
string wfSymbol = DebugSymbol.GetSymbol(activity) as string;
if (!string.IsNullOrEmpty(wfSymbol))
{
this.uninstrumentedSubRoots.Add(activity, wfSymbol);
}
else
{
string sourcePath = XamlDebuggerXmlReader.GetFileName(activity) as string;
if (!string.IsNullOrEmpty(sourcePath))
{
this.uninstrumentedSubRoots.Add(activity, sourcePath);
}
}
}
static internal Dictionary <object, SourceLocation> GetSourceLocations(Activity rootActivity, out string sourcePath, out bool isTemporaryFile, out byte[] checksum)
{
isTemporaryFile = false;
checksum = null;
string symbolString = DebugSymbol.GetSymbol(rootActivity) as String;
if (string.IsNullOrEmpty(symbolString) && rootActivity.Children != null && rootActivity.Children.Count > 0)
{ // In case of actual root is wrapped either in x:Class activity or CorrelationScope
Activity body = rootActivity.Children[0];
string bodySymbolString = DebugSymbol.GetSymbol(body) as String;
if (!string.IsNullOrEmpty(bodySymbolString))
{
rootActivity = body;
symbolString = bodySymbolString;
}
}
if (!string.IsNullOrEmpty(symbolString))
{
try
{
WorkflowSymbol wfSymbol = WorkflowSymbol.Decode(symbolString);
if (wfSymbol != null)
{
sourcePath = wfSymbol.FileName;
checksum = wfSymbol.GetChecksum();
// rootActivity is the activity with the attached symbol string.
// rootActivity.RootActivity is the workflow root activity.
// if they are not the same, then it must be compiled XAML, because loose XAML (i.e. XAMLX) always have the symbol attached at the root.
if (rootActivity.RootActivity != rootActivity)
{
Fx.Assert(rootActivity.Parent != null, "Compiled XAML implementation always have a parent.");
rootActivity = rootActivity.Parent;
}
return(GetSourceLocations(rootActivity, wfSymbol, translateInternalActivityToOrigin: false));
}
}
catch (SerializationException)
{
// Ignore invalid symbol.
}
}
sourcePath = XamlDebuggerXmlReader.GetFileName(rootActivity) as string;
Dictionary <object, SourceLocation> mapping;
Assembly localAssembly;
//bool permissionRevertNeeded = false;
// This may not be the local assembly since it may not be the real root for x:Class
localAssembly = rootActivity.GetType().Assembly;
if (rootActivity.Parent != null)
{
localAssembly = rootActivity.Parent.GetType().Assembly;
}
if (rootActivity.Children != null && rootActivity.Children.Count > 0)
{ // In case of actual root is wrapped either in x:Class activity or CorrelationScope
Activity body = rootActivity.Children[0];
string bodySourcePath = XamlDebuggerXmlReader.GetFileName(body) as string;
if (!string.IsNullOrEmpty(bodySourcePath))
{
rootActivity = body;
sourcePath = bodySourcePath;
}
}
try
{
Fx.Assert(!string.IsNullOrEmpty(sourcePath), "If sourcePath is null, it should have been short-circuited before reaching here.");
SourceLocation tempSourceLocation;
Activity tempRootActivity;
checksum = SymbolHelper.CalculateChecksum(sourcePath);
if (TryGetSourceLocation(rootActivity, sourcePath, checksum, out tempSourceLocation)) // already has source location.
{
tempRootActivity = rootActivity;
}
else
{
byte[] buffer;
#if NET45
// Need to store the file in memory temporary so don't have to re-read the file twice
// for XamlDebugXmlReader's BracketLocator.
// If there is a debugger attached, Assert FileIOPermission for Read access to the specific file.
if (System.Diagnostics.Debugger.IsAttached)
{
permissionRevertNeeded = true;
FileIOPermission permission = new FileIOPermission(FileIOPermissionAccess.Read, sourcePath);
permission.Assert();
}
#endif
try
{
FileInfo fi = new FileInfo(sourcePath);
buffer = new byte[fi.Length];
using (FileStream fs = new FileStream(sourcePath, FileMode.Open, FileAccess.Read))
{
fs.Read(buffer, 0, buffer.Length);
}
}
finally
{
#if NET45
// If we Asserted FileIOPermission, revert it.
if (permissionRevertNeeded)
{
CodeAccessPermission.RevertAssert();
permissionRevertNeeded = false;
}
#endif
}
object deserializedObject = Deserialize(buffer, localAssembly);
IDebuggableWorkflowTree debuggableWorkflowTree = deserializedObject as IDebuggableWorkflowTree;
if (debuggableWorkflowTree != null)
{ // Declarative Service and x:Class case
tempRootActivity = debuggableWorkflowTree.GetWorkflowRoot();
}
else
{ // Loose XAML case.
tempRootActivity = deserializedObject as Activity;
}
Fx.Assert(tempRootActivity != null, "Unexpected workflow xaml file");
}
mapping = new Dictionary <object, SourceLocation>();
if (tempRootActivity != null)
{
CollectMapping(rootActivity, tempRootActivity, mapping, sourcePath, checksum);
}
}
catch (Exception)
{
//// Only eat the exception if we were running in partial trust.
//if (!PartialTrustHelpers.AppDomainFullyTrusted)
//{
// // Eat the exception and return an empty dictionary.
// return new Dictionary<object, SourceLocation>();
//}
//else
//{
throw;
//}
}
return(mapping);
}