/// <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)
{
return(Load(reader, parserContext, parseMode, useRestrictiveXamlReader: false));
}
/// <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);
}
// review - this needs to check that setparseMode is called only
// once and only on the Root tag.
internal void SetParseMode(XamlParseMode xamlParseMode)
{
// only update if we are allowed to update the parent nodes
if (UpdateParentNodes)
{
// update the parseMode in the StartRecord.
if (xamlParseMode == XamlParseMode.Asynchronous)
{
Debug.Assert(null != DocumentStartRecord);
if (null != DocumentStartRecord)
{
DocumentStartRecord.LoadAsync = true;
DocumentStartRecord.UpdateWrite(BinaryWriter);
}
}
}
}
/// <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;
}
