public static object Load(System.Xaml.XamlReader reader)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
object root = null;
try
{
root = Load(reader, null);
}
catch (Exception e)
{
IUriContext uriContext = reader as IUriContext;
Uri baseUri = (uriContext != null) ? uriContext.BaseUri : null;
// Don't wrap critical exceptions or already-wrapped exceptions.
if (MS.Internal.CriticalExceptions.IsCriticalException(e) || !ShouldReWrapException(e, baseUri))
{
throw;
}
RewrapException(e, baseUri);
}
finally
{
if (TraceMarkup.IsEnabled)
{
TraceMarkup.Trace(TraceEventType.Stop, TraceMarkup.Load, root);
}
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml, EventTrace.Event.WClientParseXmlEnd);
#if DEBUG_CLR_MEM
if (clrTracingEnabled && (CLRProfilerControl.CLRLoggingLevel >= CLRProfilerControl.CLRLogState.Performance))
{
CLRProfilerControl.CLRLogWriteLine("End_XamlParse_{0}", pass);
}
#endif // DEBUG_CLR_MEM
}
return(root);
}
//[CodeAnalysis("AptcaMethodsShouldOnlyCallAptcaMethods")] //Tracking Bug: 29647
internal static object LoadBaml(
Stream stream,
ParserContext parserContext,
object parent,
bool closeStream)
{
object root = null;
#if DEBUG_CLR_MEM
bool clrTracingEnabled = false;
// Use local pass variable to correctly log nested parses.
int pass = 0;
if (CLRProfilerControl.ProcessIsUnderCLRProfiler &&
(CLRProfilerControl.CLRLoggingLevel >= CLRProfilerControl.CLRLogState.Performance))
{
clrTracingEnabled = true;
pass = ++_CLRBamlPass;
CLRProfilerControl.CLRLogWriteLine("Begin_BamlParse_{0}", pass);
}
#endif // DEBUG_CLR_MEM
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml | EventTrace.Keyword.KeywordPerf, EventTrace.Event.WClientParseBamlBegin, parserContext.BaseUri);
if (TraceMarkup.IsEnabled)
{
TraceMarkup.Trace(TraceEventType.Start, TraceMarkup.Load);
}
try
{
//
// If the stream contains info about the Assembly that created it,
// set StreamCreatedAssembly from the stream instance.
//
IStreamInfo streamInfo = stream as IStreamInfo;
if (streamInfo != null)
{
parserContext.StreamCreatedAssembly = streamInfo.Assembly;
}
Baml2006ReaderSettings readerSettings = XamlReader.CreateBamlReaderSettings();
readerSettings.BaseUri = parserContext.BaseUri;
readerSettings.LocalAssembly = streamInfo.Assembly;
// We do not set OwnsStream = true so the Baml2006Reader will not close the stream.
// Calling code is responsible for disposing the stream
if (readerSettings.BaseUri == null || String.IsNullOrEmpty(readerSettings.BaseUri.ToString()))
{
readerSettings.BaseUri = BaseUriHelper.PackAppBaseUri;
}
var reader = new Baml2006ReaderInternal(stream, new Baml2006SchemaContext(readerSettings.LocalAssembly), readerSettings, parent);
// We don't actually use the GeneratedInternalTypeHelper any more.
// But for v3 compat, don't allow loading of internals in PT unless there is one.
Type internalTypeHelper = null;
if (streamInfo.Assembly != null)
{
try
{
internalTypeHelper = XamlTypeMapper.GetInternalTypeHelperTypeFromAssembly(parserContext);
}
// This can perform attribute reflection which will fail if the assembly has unresolvable
// attributes. If that happens, just assume there is no helper.
catch (Exception e)
{
if (MS.Internal.CriticalExceptions.IsCriticalException(e))
{
throw;
}
}
}
if (internalTypeHelper != null)
{
XamlAccessLevel accessLevel = XamlAccessLevel.AssemblyAccessTo(streamInfo.Assembly);
XamlLoadPermission loadPermission = new XamlLoadPermission(accessLevel);
loadPermission.Assert();
try
{
root = WpfXamlLoader.LoadBaml(reader, parserContext.SkipJournaledProperties, parent, accessLevel, parserContext.BaseUri);
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
else
{
root = WpfXamlLoader.LoadBaml(reader, parserContext.SkipJournaledProperties, parent, null, parserContext.BaseUri);
}
DependencyObject dObject = root as DependencyObject;
if (dObject != null)
{
dObject.SetValue(BaseUriHelper.BaseUriProperty, readerSettings.BaseUri);
}
Application app = root as Application;
if (app != null)
{
app.ApplicationMarkupBaseUri = GetBaseUri(readerSettings.BaseUri);
}
Debug.Assert(parent == null || root == parent);
}
finally
{
if (TraceMarkup.IsEnabled)
{
TraceMarkup.Trace(TraceEventType.Stop, TraceMarkup.Load, root);
}
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml | EventTrace.Keyword.KeywordPerf, EventTrace.Event.WClientParseBamlEnd, parserContext.BaseUri);
if (closeStream && stream != null)
{
stream.Close();
}
#if DEBUG_CLR_MEM
if (clrTracingEnabled && (CLRProfilerControl.CLRLoggingLevel >= CLRProfilerControl.CLRLogState.Performance))
{
CLRProfilerControl.CLRLogWriteLine("End_BamlParse_{0}", pass);
}
#endif // DEBUG_CLR_MEM
}
return(root);
}
/// <summary>
/// Reads XAML from the passed stream, building an object tree and returning the
/// root of that tree. Wrap a CompatibilityReader with another XmlReader that
/// uses the passed reader settings to allow validation of xaml.
/// </summary>
/// <param name="reader">XmlReader to use. This is NOT wrapped by any
/// other reader</param>
/// <param name="context">Optional parser context. May be null </param>
/// <param name="parseMode">Sets synchronous or asynchronous parsing</param>
/// <returns>object root generated after xml parsed</returns>
// Note this is the internal entry point for XPS. XPS calls here so
// its reader is not wrapped with a Markup Compat Reader.
internal static object Load(
XmlReader reader,
ParserContext parserContext,
XamlParseMode parseMode)
{
if (parseMode == XamlParseMode.Uninitialized ||
parseMode == XamlParseMode.Asynchronous)
{
XamlReader xamlReader = new XamlReader();
return(xamlReader.LoadAsync(reader, parserContext));
}
if (parserContext == null)
{
parserContext = new ParserContext();
}
#if DEBUG_CLR_MEM
bool clrTracingEnabled = false;
// Use local pass variable to correctly log nested parses.
int pass = 0;
if (CLRProfilerControl.ProcessIsUnderCLRProfiler &&
(CLRProfilerControl.CLRLoggingLevel >= CLRProfilerControl.CLRLogState.Performance))
{
clrTracingEnabled = true;
pass = ++_CLRXamlPass;
CLRProfilerControl.CLRLogWriteLine("Begin_XamlParse_{0}", pass);
}
#endif // DEBUG_CLR_MEM
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml, EventTrace.Event.WClientParseXmlBegin, parserContext.BaseUri);
if (TraceMarkup.IsEnabled)
{
TraceMarkup.Trace(TraceEventType.Start, TraceMarkup.Load);
}
object root = null;
try
{
if (parserContext.BaseUri == null ||
String.IsNullOrEmpty(parserContext.BaseUri.ToString()))
{
if (reader.BaseURI == null ||
String.IsNullOrEmpty(reader.BaseURI.ToString()))
{
parserContext.BaseUri = BaseUriHelper.PackAppBaseUri;
}
else
{
parserContext.BaseUri = new Uri(reader.BaseURI);
}
}
System.Xaml.XamlXmlReaderSettings settings = new System.Xaml.XamlXmlReaderSettings();
settings.IgnoreUidsOnPropertyElements = true;
settings.BaseUri = parserContext.BaseUri;
settings.ProvideLineInfo = true;
XamlSchemaContext schemaContext = parserContext.XamlTypeMapper != null ?
parserContext.XamlTypeMapper.SchemaContext : GetWpfSchemaContext();
System.Xaml.XamlXmlReader xamlXmlReader = new System.Xaml.XamlXmlReader(reader, schemaContext, settings);
root = Load(xamlXmlReader, parserContext);
reader.Close();
}
catch (Exception e)
{
// Don't wrap critical exceptions or already-wrapped exceptions.
if (MS.Internal.CriticalExceptions.IsCriticalException(e) || !ShouldReWrapException(e, parserContext.BaseUri))
{
throw;
}
RewrapException(e, parserContext.BaseUri);
}
finally
{
if (TraceMarkup.IsEnabled)
{
TraceMarkup.Trace(TraceEventType.Stop, TraceMarkup.Load, root);
}
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordXamlBaml, EventTrace.Event.WClientParseXmlEnd, parserContext.BaseUri);
#if DEBUG_CLR_MEM
if (clrTracingEnabled && (CLRProfilerControl.CLRLoggingLevel >= CLRProfilerControl.CLRLogState.Performance))
{
CLRProfilerControl.CLRLogWriteLine("End_XamlParse_{0}", pass);
}
#endif // DEBUG_CLR_MEM
}
return(root);
}