internal RecordBuilder(IRecordOutput output, XmlNameTable?nameTable)
{
Debug.Assert(output != null);
_output = output;
_nameTable = nameTable != null ? nameTable : new NameTable();
_atoms = new OutKeywords(_nameTable);
_scopeManager = new OutputScopeManager(_nameTable, _atoms);
}
//
// Builder stack
//
internal void PushOutput(IRecordOutput output)
{
Debug.Assert(output != null);
_builder.OutputState = _xsm.State;
RecordBuilder lastBuilder = _builder;
_builder = new RecordBuilder(output, _nameTable);
_builder.Next = lastBuilder;
_xsm.Reset();
}
public void Execute(TextWriter writer)
{
IRecordOutput recOutput = null;
switch (_output.Method)
{
case XsltOutput.OutputMethod.Text:
recOutput = new TextOnlyOutput(this, writer);
break;
case XsltOutput.OutputMethod.Xml:
case XsltOutput.OutputMethod.Html:
case XsltOutput.OutputMethod.Other:
case XsltOutput.OutputMethod.Unknown:
recOutput = new TextOutput(this, writer);
break;
}
_builder = new RecordBuilder(recOutput, _nameTable);
Execute();
}
internal override void Execute(Processor processor, ActionFrame frame)
{
Debug.Assert(processor != null && frame != null);
object ParamValue;
switch (frame.State)
{
case Initialized:
if (this.selectKey != Compiler.InvalidQueryKey)
{
ParamValue = processor.RunQuery(frame, this.selectKey);
processor.SetParameter(this.name !, ParamValue);
frame.Finished();
}
else
{
if (this.containedActions == null)
{
processor.SetParameter(this.name !, string.Empty);
frame.Finished();
break;
}
NavigatorOutput output = new NavigatorOutput(baseUri !);
processor.PushOutput(output);
processor.PushActionFrame(frame);
frame.State = ProcessingChildren;
}
break;
case ProcessingChildren:
IRecordOutput recOutput = processor.PopOutput();
Debug.Assert(recOutput is NavigatorOutput);
processor.SetParameter(this.name !, ((NavigatorOutput)recOutput).Navigator);
frame.Finished();
break;
default:
Debug.Fail("Invalid execution state inside VariableAction.Execute");
break;
}
}
internal override void Execute(Processor processor, ActionFrame frame)
{
Debug.Assert(processor != null && frame != null && frame.State != ValueCalculated);
object value = null;
switch (frame.State)
{
case Initialized:
if (IsGlobal)
{
if (frame.GetVariable(_varKey) != null)
{ // This var was calculated already
frame.Finished();
break;
}
// Mark that the variable is being computed to check for circular references
frame.SetVariable(_varKey, BeingComputedMark);
}
// If this is a parameter, check whether the caller has passed the value
if (this.varType == VariableType.GlobalParameter)
{
value = processor.GetGlobalParameter(this.name);
}
else if (this.varType == VariableType.LocalParameter)
{
value = processor.GetParameter(this.name);
}
if (value != null)
{
goto case ValueCalculated;
}
// If value was not passed, check the 'select' attribute
if (this.selectKey != Compiler.InvalidQueryKey)
{
value = processor.RunQuery(frame, this.selectKey);
goto case ValueCalculated;
}
// If there is no 'select' attribute and the content is empty, use the empty string
if (this.containedActions == null)
{
value = string.Empty;
goto case ValueCalculated;
}
// RTF case
NavigatorOutput output = new NavigatorOutput(this.baseUri);
processor.PushOutput(output);
processor.PushActionFrame(frame);
frame.State = ProcessingChildren;
break;
case ProcessingChildren:
IRecordOutput recOutput = processor.PopOutput();
Debug.Assert(recOutput is NavigatorOutput);
value = ((NavigatorOutput)recOutput).Navigator;
goto case ValueCalculated;
case ValueCalculated:
Debug.Assert(value != null);
frame.SetVariable(_varKey, value);
frame.Finished();
break;
default:
Debug.Fail("Invalid execution state inside VariableAction.Execute");
break;
}
}
