internal NodeSequenceEnumerator(NodeSequenceIterator iter)
{
this.iter = new NodeSequenceIterator(iter);
Reset();
}
internal NodeSequenceIterator(NodeSequenceIterator iter)
{
this.data = iter.data;
this.index = iter.index;
}
internal override Opcode Eval(ProcessingContext context)
{
XPathNavigator contextNode = context.Processor.ContextNode;
if ((contextNode != null) && (context.Processor.ContextMessage != null))
{
((SeekableMessageNavigator)contextNode).Atomize();
}
if (this.argCount == 0)
{
context.PushFrame();
int iterationCount = context.IterationCount;
if (iterationCount > 0)
{
object obj2 = this.function.Invoke(this.xsltContext, NullArgs, contextNode);
switch (this.function.ReturnType)
{
case XPathResultType.Number:
context.Push((double)obj2, iterationCount);
goto Label_03F6;
case XPathResultType.String:
context.Push((string)obj2, iterationCount);
goto Label_03F6;
case XPathResultType.Boolean:
context.Push((bool)obj2, iterationCount);
goto Label_03F6;
case XPathResultType.NodeSet:
{
NodeSequence sequence = context.CreateSequence();
XPathNodeIterator iter = (XPathNodeIterator)obj2;
sequence.Add(iter);
context.Push(sequence, iterationCount);
goto Label_03F6;
}
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, System.ServiceModel.SR.GetString("QueryFunctionTypeNotSupported", new object[] { this.function.ReturnType.ToString() })));
}
}
else
{
object[] args = new object[this.argCount];
int count = context.TopArg.Count;
for (int i = 0; i < count; i++)
{
for (int k = 0; k < this.argCount; k++)
{
StackFrame frame = context[k];
switch (this.function.ArgTypes[k])
{
case XPathResultType.Number:
args[k] = context.PeekDouble(frame[i]);
break;
case XPathResultType.String:
args[k] = context.PeekString(frame[i]);
break;
case XPathResultType.Boolean:
args[k] = context.PeekBoolean(frame[i]);
break;
case XPathResultType.NodeSet:
{
NodeSequenceIterator item = new NodeSequenceIterator(context.PeekSequence(frame[i]));
args[k] = item;
this.iterList.Add(item);
break;
}
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, System.ServiceModel.SR.GetString("QueryFunctionTypeNotSupported", new object[] { this.function.ArgTypes[k].ToString() })));
}
}
object obj3 = this.function.Invoke(this.xsltContext, args, contextNode);
if (this.iterList != null)
{
for (int m = 0; m < this.iterList.Count; m++)
{
this.iterList[m].Clear();
}
this.iterList.Clear();
}
switch (this.function.ReturnType)
{
case XPathResultType.Number:
{
StackFrame frame4 = context[this.argCount - 1];
context.SetValue(context, frame4[i], (double)obj3);
break;
}
case XPathResultType.String:
{
StackFrame frame3 = context[this.argCount - 1];
context.SetValue(context, frame3[i], (string)obj3);
break;
}
case XPathResultType.Boolean:
{
StackFrame frame5 = context[this.argCount - 1];
context.SetValue(context, frame5[i], (bool)obj3);
break;
}
case XPathResultType.NodeSet:
{
NodeSequence val = context.CreateSequence();
XPathNodeIterator iterator3 = (XPathNodeIterator)obj3;
val.Add(iterator3);
StackFrame frame6 = context[this.argCount - 1];
context.SetValue(context, frame6[i], val);
break;
}
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, System.ServiceModel.SR.GetString("QueryFunctionTypeNotSupported", new object[] { this.function.ReturnType.ToString() })));
}
}
for (int j = 0; j < (this.argCount - 1); j++)
{
context.PopFrame();
}
}
Label_03F6:
return(base.next);
}
SeekableXPathNavigator nav; // the navigator that will be used by this iterator
internal NodeSequenceIterator(NodeSequence seq)
: base()
{
this.data = this;
this.seq = seq;
}
internal override Opcode Eval(ProcessingContext context)
{
XPathNavigator nav = context.Processor.ContextNode;
if (nav != null && context.Processor.ContextMessage != null)
{
((SeekableMessageNavigator)nav).Atomize();
}
if (this.argCount == 0)
{
context.PushFrame();
int count = context.IterationCount;
if (count > 0)
{
object ret = this.function.Invoke(this.xsltContext, NullArgs, nav);
switch (this.function.ReturnType)
{
case XPathResultType.String:
context.Push((string)ret, count);
break;
case XPathResultType.Number:
context.Push((double)ret, count);
break;
case XPathResultType.Boolean:
context.Push((bool)ret, count);
break;
case XPathResultType.NodeSet:
NodeSequence seq = context.CreateSequence();
XPathNodeIterator iter = (XPathNodeIterator)ret;
seq.Add(iter);
context.Push(seq, count);
break;
default:
// This should never be reached
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, SR.GetString(SR.QueryFunctionTypeNotSupported, this.function.ReturnType.ToString())));
}
}
}
else
{
// PERF, [....], see if we can cache these arrays to avoid allocations
object[] xsltArgs = new object[this.argCount];
int iterationCount = context.TopArg.Count;
for (int iteration = 0; iteration < iterationCount; ++iteration)
{
for (int i = 0; i < this.argCount; ++i)
{
StackFrame arg = context[i];
Fx.Assert(iteration < arg.Count, "");
switch (this.function.ArgTypes[i])
{
case XPathResultType.String:
xsltArgs[i] = context.PeekString(arg[iteration]);
break;
case XPathResultType.Number:
xsltArgs[i] = context.PeekDouble(arg[iteration]);
break;
case XPathResultType.Boolean:
xsltArgs[i] = context.PeekBoolean(arg[iteration]);
break;
case XPathResultType.NodeSet:
NodeSequenceIterator iter = new NodeSequenceIterator(context.PeekSequence(arg[iteration]));
xsltArgs[i] = iter;
this.iterList.Add(iter);
break;
default:
// This should never be reached
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, SR.GetString(SR.QueryFunctionTypeNotSupported, this.function.ArgTypes[i].ToString())));
}
}
object ret = this.function.Invoke(this.xsltContext, xsltArgs, nav);
if (this.iterList != null)
{
for (int i = 0; i < this.iterList.Count; ++i)
{
this.iterList[i].Clear();
}
this.iterList.Clear();
}
switch (this.function.ReturnType)
{
case XPathResultType.String:
context.SetValue(context, context[this.argCount - 1][iteration], (string)ret);
break;
case XPathResultType.Number:
context.SetValue(context, context[this.argCount - 1][iteration], (double)ret);
break;
case XPathResultType.Boolean:
context.SetValue(context, context[this.argCount - 1][iteration], (bool)ret);
break;
case XPathResultType.NodeSet:
NodeSequence seq = context.CreateSequence();
XPathNodeIterator iter = (XPathNodeIterator)ret;
seq.Add(iter);
context.SetValue(context, context[this.argCount - 1][iteration], seq);
break;
default:
// This should never be reached
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, SR.GetString(SR.QueryFunctionTypeNotSupported, this.function.ReturnType.ToString())));
}
}
for (int i = 0; i < this.argCount - 1; ++i)
{
context.PopFrame();
}
}
return(this.next);
}