internal override void InvokeInternal(ProcessingContext context, int argCount)
 {
     int iterationCount = context.IterationCount;
     context.PushSequenceFrame();
     if (iterationCount > 0)
     {
         NodeSequence seq = context.CreateSequence();
         seq.StartNodeset();
         SeekableXPathNavigator contextNode = context.Processor.ContextNode;
         long currentPosition = contextNode.CurrentPosition;
         if (XPathMessageFunction.MoveToAddressingHeader(contextNode, "RelatesTo"))
         {
             seq.Add(contextNode);
             while (XPathMessageFunction.MoveToAddressingHeaderSibling(contextNode, "RelatesTo"))
             {
                 seq.Add(contextNode);
             }
         }
         seq.StopNodeset();
         context.PushSequence(seq);
         for (int i = 1; i < iterationCount; i++)
         {
             seq.refCount++;
             context.PushSequence(seq);
         }
         contextNode.CurrentPosition = currentPosition;
     }
 }
 internal override Opcode Eval(ProcessingContext context)
 {
     StackFrame topSequenceArg = context.TopSequenceArg;
     Value[] sequences = context.Sequences;
     bool sequenceStackInUse = context.SequenceStackInUse;
     context.PushSequenceFrame();
     for (int i = topSequenceArg.basePtr; i <= topSequenceArg.endPtr; i++)
     {
         NodeSequence sequence = sequences[i].Sequence;
         if (sequence.Count == 0)
         {
             if (!sequenceStackInUse)
             {
                 context.PushSequence(NodeSequence.Empty);
             }
         }
         else
         {
             NodeSequenceItem[] items = sequence.Items;
             for (int j = 0; j < sequence.Count; j++)
             {
                 SeekableXPathNavigator contextNode = items[j].GetNavigator();
                 NodeSequence destSequence = context.CreateSequence();
                 destSequence.StartNodeset();
                 base.criteria.Select(contextNode, destSequence);
                 destSequence.StopNodeset();
                 context.PushSequence(destSequence);
             }
         }
     }
     return base.next;
 }
 internal override void InvokeInternal(ProcessingContext context, int argCount)
 {
     StackFrame topArg = context.TopArg;
     SeekableXPathNavigator contextNode = context.Processor.ContextNode;
     long currentPosition = contextNode.CurrentPosition;
     while (topArg.basePtr <= topArg.endPtr)
     {
         string str = context.PeekString(topArg.basePtr);
         NodeSequence val = context.CreateSequence();
         if (XPathMessageFunction.MoveToHeader(contextNode) && contextNode.MoveToFirstChild())
         {
             do
             {
                 long num2 = contextNode.CurrentPosition;
                 string str2 = XPathMessageFunctionActor.ExtractFromNavigator(contextNode);
                 contextNode.CurrentPosition = num2;
                 if (str2 == str)
                 {
                     val.Add(contextNode);
                 }
             }
             while (contextNode.MoveToNext());
         }
         context.SetValue(context, topArg.basePtr, val);
         topArg.basePtr++;
     }
     contextNode.CurrentPosition = currentPosition;
 }
 internal override Opcode Eval(ProcessingContext context)
 {
     if (!context.LoadVariable(this.expr.Variable))
     {
         context.PushSequenceFrame();
         NodeSequence seq = context.CreateSequence();
         seq.Add(context.Processor.ContextNode);
         context.PushSequence(seq);
         int counterMarker = context.Processor.CounterMarker;
         try
         {
             this.expr.Eval(context);
         }
         catch (XPathNavigatorException exception)
         {
             throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception.Process(this));
         }
         catch (NavigatorInvalidBodyAccessException exception2)
         {
             throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(exception2.Process(this));
         }
         context.Processor.CounterMarker = counterMarker;
         context.PopSequenceFrame();
         context.PopSequenceFrame();
         context.LoadVariable(this.expr.Variable);
     }
     return base.next;
 }
Ejemplo n.º 5
0
        internal override Opcode Eval(ProcessingContext context)
        {
            context.PushContextSequenceFrame();
            NodeSequence seq = context.CreateSequence();

            seq.StartNodeset();
            seq.Add(context.Processor.ContextNode);
            seq.StopNodeset();

            context.PushSequence(seq);

            return this.next;
        }
 internal override Opcode Eval(ProcessingContext context)
 {
     StackFrame topSequenceArg = context.TopSequenceArg;
     SeekableXPathNavigator contextNode = null;
     Value[] sequences = context.Sequences;
     for (int i = topSequenceArg.basePtr; i <= topSequenceArg.endPtr; i++)
     {
         NodeSequence sequence = sequences[i].Sequence;
         int count = sequence.Count;
         if (count == 0)
         {
             context.ReplaceSequenceAt(i, NodeSequence.Empty);
             context.ReleaseSequence(sequence);
         }
         else
         {
             NodeSequenceItem[] items = sequence.Items;
             if (sequence.CanReuse(context))
             {
                 contextNode = items[0].GetNavigator();
                 sequence.Clear();
                 sequence.StartNodeset();
                 this.criteria.Select(contextNode, sequence);
                 sequence.StopNodeset();
             }
             else
             {
                 NodeSequence destSequence = null;
                 for (int j = 0; j < count; j++)
                 {
                     contextNode = items[j].GetNavigator();
                     if (destSequence == null)
                     {
                         destSequence = context.CreateSequence();
                     }
                     destSequence.StartNodeset();
                     this.criteria.Select(contextNode, destSequence);
                     destSequence.StopNodeset();
                 }
                 context.ReplaceSequenceAt(i, (destSequence != null) ? destSequence : NodeSequence.Empty);
                 context.ReleaseSequence(sequence);
             }
         }
     }
     return base.next;
 }
 internal override Opcode Eval(ProcessingContext context)
 {
     Value[] values = context.Values;
     StackFrame topArg = context.TopArg;
     for (int i = topArg.basePtr; i <= topArg.endPtr; i++)
     {
         NodeSequence sequence = values[i].Sequence;
         NodeSequence val = context.CreateSequence();
         for (int j = 0; j < sequence.Count; j++)
         {
             NodeSequenceItem item = sequence[j];
             val.AddCopy(ref item);
         }
         val.Merge();
         context.SetValue(context, i, val);
     }
     return base.next;
 }
        internal override Opcode Eval(ProcessingContext context)
        {
            Value[]    values = context.Values;
            StackFrame topArg = context.TopArg;

            for (int i = topArg.basePtr; i <= topArg.endPtr; i++)
            {
                NodeSequence sequence = values[i].Sequence;
                NodeSequence val      = context.CreateSequence();
                for (int j = 0; j < sequence.Count; j++)
                {
                    NodeSequenceItem item = sequence[j];
                    val.AddCopy(ref item);
                }
                val.Merge();
                context.SetValue(context, i, val);
            }
            return(base.next);
        }
Ejemplo n.º 9
0
        /// <summary>
        /// Union algorithm:
        /// 1. Add both sequences of items to a newly created sequence
        /// 2. Sort the items based on document position
        /// 3. Renumber positions in this new unionized sequence
        /// </summary>
        internal NodeSequence Union(ProcessingContext context, NodeSequence otherSeq)
        {
            NodeSequence seq = context.CreateSequence();

            SortedBuffer <QueryNode, QueryNodeComparer> buff = new SortedBuffer <QueryNode, QueryNodeComparer>(staticQueryNodeComparerInstance);

            for (int i = 0; i < this.count; ++i)
            {
                buff.Add(this.items[i].Node);
            }

            for (int i = 0; i < otherSeq.count; ++i)
            {
                buff.Add(otherSeq.items[i].Node);
            }

            for (int i = 0; i < buff.Count; ++i)
            {
                seq.Add(buff[i]);
            }

            seq.RenumberItems();
            return(seq);

            /*
             * // PERF, [....], I think we can do the merge ourselves and avoid the sort.
             * //               Need to verify that the sequences are always in document order.
             * for(int i = 0; i < this.count; ++i)
             * {
             *  seq.AddCopy(ref this.items[i]);
             * }
             *
             * for(int i = 0; i < otherSeq.count; ++i)
             * {
             *  seq.AddCopy(ref otherSeq.items[i]);
             * }
             *
             * seq.SortNodes();
             * seq.RemoveDuplicates();
             *
             * return seq;
             */
        }
        internal NodeSequence Union(ProcessingContext context, NodeSequence otherSeq)
        {
            NodeSequence sequence = context.CreateSequence();
            SortedBuffer <QueryNode, QueryNodeComparer> buffer = new SortedBuffer <QueryNode, QueryNodeComparer>(staticQueryNodeComparerInstance);

            for (int i = 0; i < this.count; i++)
            {
                buffer.Add(this.items[i].Node);
            }
            for (int j = 0; j < otherSeq.count; j++)
            {
                buffer.Add(otherSeq.items[j].Node);
            }
            for (int k = 0; k < buffer.Count; k++)
            {
                sequence.Add(buffer[k]);
            }
            sequence.RenumberItems();
            return(sequence);
        }
        internal override Opcode Eval(ProcessingContext context)
        {
            int    iterationCount = context.IterationCount;
            Opcode next           = base.next;

            context.PushSequenceFrame();
            NodeSequence empty = context.CreateSequence();

            if ((base.next != null) && ((base.next.Flags & OpcodeFlags.CompressableSelect) != OpcodeFlags.None))
            {
                SeekableXPathNavigator contextNode = context.Processor.ContextNode;
                contextNode.MoveToRoot();
                next = base.next.Eval(empty, contextNode);
                while ((next != null) && ((next.Flags & OpcodeFlags.CompressableSelect) != OpcodeFlags.None))
                {
                    next = next.Next;
                }
            }
            else
            {
                empty.StartNodeset();
                SeekableXPathNavigator node = context.Processor.ContextNode;
                node.MoveToRoot();
                empty.Add(node);
                empty.StopNodeset();
            }
            if (empty.Count == 0)
            {
                context.ReleaseSequence(empty);
                empty = NodeSequence.Empty;
            }
            for (int i = 0; i < iterationCount; i++)
            {
                context.PushSequence(empty);
            }
            if (iterationCount > 1)
            {
                empty.refCount += iterationCount - 1;
            }
            return(next);
        }
 internal override Opcode Eval(ProcessingContext context)
 {
     int iterationCount = context.IterationCount;
     Opcode next = base.next;
     context.PushSequenceFrame();
     NodeSequence empty = context.CreateSequence();
     if ((base.next != null) && ((base.next.Flags & OpcodeFlags.CompressableSelect) != OpcodeFlags.None))
     {
         SeekableXPathNavigator contextNode = context.Processor.ContextNode;
         contextNode.MoveToRoot();
         next = base.next.Eval(empty, contextNode);
         while ((next != null) && ((next.Flags & OpcodeFlags.CompressableSelect) != OpcodeFlags.None))
         {
             next = next.Next;
         }
     }
     else
     {
         empty.StartNodeset();
         SeekableXPathNavigator node = context.Processor.ContextNode;
         node.MoveToRoot();
         empty.Add(node);
         empty.StopNodeset();
     }
     if (empty.Count == 0)
     {
         context.ReleaseSequence(empty);
         empty = NodeSequence.Empty;
     }
     for (int i = 0; i < iterationCount; i++)
     {
         context.PushSequence(empty);
     }
     if (iterationCount > 1)
     {
         empty.refCount += iterationCount - 1;
     }
     return next;
 }
        internal override Opcode Eval(ProcessingContext context)
        {
            StackFrame topSequenceArg = context.TopSequenceArg;

            Value[]    values = context.Values;
            StackFrame topArg = context.TopArg;

            Value[] sequences = context.Sequences;
            context.PushSequenceFrame();
            for (int i = topSequenceArg.basePtr; i <= topSequenceArg.endPtr; i++)
            {
                NodeSequence sequence = sequences[i].Sequence;
                if (sequence.Count > 0)
                {
                    NodeSequenceItem[] items     = sequence.Items;
                    NodeSequence       sequence2 = null;
                    int basePtr = topArg.basePtr;
                    for (int j = 0; basePtr <= topArg.endPtr; j++)
                    {
                        if (this.test == values[basePtr].Boolean)
                        {
                            if (sequence2 == null)
                            {
                                sequence2 = context.CreateSequence();
                            }
                            sequence2.AddCopy(ref items[j], NodeSequence.GetContextSize(sequence, j));
                        }
                        else if (items[j].Last && (sequence2 != null))
                        {
                            sequence2.Items[sequence2.Count - 1].Last = true;
                        }
                        basePtr++;
                    }
                    context.PushSequence((sequence2 == null) ? NodeSequence.Empty : sequence2);
                    sequence2 = null;
                }
            }
            return(base.next);
        }
Ejemplo n.º 14
0
        internal override Opcode Eval(ProcessingContext context)
        {
            Value[]    values = context.Values;
            StackFrame arg    = context.TopArg;

            for (int i = arg.basePtr; i <= arg.endPtr; ++i)
            {
                Fx.Assert(ValueDataType.Sequence == values[i].Type, "");
                NodeSequence seq = values[i].Sequence;

                NodeSequence newSeq = context.CreateSequence();
                for (int j = 0; j < seq.Count; ++j)
                {
                    NodeSequenceItem item = seq[j];
                    newSeq.AddCopy(ref item);
                }
                newSeq.Merge();

                context.SetValue(context, i, newSeq);
            }

            return(this.next);
        }
 internal override Opcode Eval(ProcessingContext context)
 {
     StackFrame topSequenceArg = context.TopSequenceArg;
     Value[] values = context.Values;
     StackFrame topArg = context.TopArg;
     Value[] sequences = context.Sequences;
     context.PushSequenceFrame();
     for (int i = topSequenceArg.basePtr; i <= topSequenceArg.endPtr; i++)
     {
         NodeSequence sequence = sequences[i].Sequence;
         if (sequence.Count > 0)
         {
             NodeSequenceItem[] items = sequence.Items;
             NodeSequence sequence2 = null;
             int basePtr = topArg.basePtr;
             for (int j = 0; basePtr <= topArg.endPtr; j++)
             {
                 if (this.test == values[basePtr].Boolean)
                 {
                     if (sequence2 == null)
                     {
                         sequence2 = context.CreateSequence();
                     }
                     sequence2.AddCopy(ref items[j], NodeSequence.GetContextSize(sequence, j));
                 }
                 else if (items[j].Last && (sequence2 != null))
                 {
                     sequence2.Items[sequence2.Count - 1].Last = true;
                 }
                 basePtr++;
             }
             context.PushSequence((sequence2 == null) ? NodeSequence.Empty : sequence2);
             sequence2 = null;
         }
     }
     return base.next;
 }
Ejemplo n.º 16
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        internal override void InvokeInternal(ProcessingContext context, int argCount)
        {
            int iterationCount = context.IterationCount;

            context.PushSequenceFrame();
            if (iterationCount > 0)
            {
                NodeSequence seq = context.CreateSequence();
                seq.StartNodeset();
                SeekableXPathNavigator contextNode = context.Processor.ContextNode;
                long currentPosition = contextNode.CurrentPosition;
                if (XPathMessageFunction.MoveToHeader(contextNode))
                {
                    seq.Add(contextNode);
                }
                contextNode.CurrentPosition = currentPosition;
                seq.StopNodeset();
                context.PushSequence(seq);
                for (int i = 1; i < iterationCount; i++)
                {
                    context.PushSequence(seq);
                }
            }
        }
Ejemplo n.º 17
0
        internal override void EvalSpecial(ProcessingContext context)
        {
            int marker = context.Processor.CounterMarker;

            if (!context.LoadVariable(this.var))
            {
                XPathMessageContext.HeaderFun.InvokeInternal(context, 0);
                context.SaveVariable(this.var, context.Processor.ElapsedCount(marker));
            }

            // WS, Microsoft, see if we can put this array in the processor to save
            //             an allocation.  Perhaps we can use the variables slot we're going to fill
            NodeSequence[] childSequences = new NodeSequence[this.children.Count];
            NodeSequence   seq            = context.Sequences[context.TopSequenceArg.basePtr].Sequence;

            for (int i = 0; i < this.children.Count; ++i)
            {
                childSequences[i] = context.CreateSequence();
                childSequences[i].StartNodeset();
            }

            // Perform the index
            SeekableXPathNavigator nav = seq[0].GetNavigator();

            if (nav.MoveToFirstChild())
            {
                do
                {
                    if (nav.NodeType == XPathNodeType.Element)
                    {
                        List <SubExpr> lst;
                        string         name = nav.LocalName;
                        string         ns   = nav.NamespaceURI;
                        Dictionary <string, List <SubExpr> > nextLookup;
                        if (this.nameLookup.TryGetValue(ns, out nextLookup))
                        {
                            if (nextLookup.TryGetValue(name, out lst))
                            {
                                for (int i = 0; i < lst.Count; ++i)
                                {
                                    childSequences[this.indexLookup[lst[i]].i].Add(nav);
                                }
                            }

                            if (nextLookup.TryGetValue(QueryDataModel.Wildcard, out lst))
                            {
                                for (int i = 0; i < lst.Count; ++i)
                                {
                                    childSequences[this.indexLookup[lst[i]].i].Add(nav);
                                }
                            }
                        }

                        if (this.nameLookup.TryGetValue(QueryDataModel.Wildcard, out nextLookup))
                        {
                            if (nextLookup.TryGetValue(QueryDataModel.Wildcard, out lst))
                            {
                                for (int i = 0; i < lst.Count; ++i)
                                {
                                    childSequences[this.indexLookup[lst[i]].i].Add(nav);
                                }
                            }
                        }
                    }
                } while (nav.MoveToNext());
            }

            int secondMarker = context.Processor.CounterMarker;

            for (int i = 0; i < this.children.Count; ++i)
            {
                if (this.children[i].useSpecial)
                {
                    childSequences[i].StopNodeset();
                    context.Processor.CounterMarker = secondMarker;
                    context.PushSequenceFrame();
                    context.PushSequence(childSequences[i]);
                    Opcode op = this.children[i].FirstOp.Next;
                    while (op != null)
                    {
                        op = op.Eval(context);
                    }
                    context.SaveVariable(this.children[i].var, context.Processor.ElapsedCount(marker));
                    context.PopSequenceFrame();
                }
                else
                {
                    context.ReleaseSequence(childSequences[i]);
                    //context.SetVariable(this.children[i].Variable, null, 0);
                }
            }

            context.Processor.CounterMarker = marker;
        }
 internal override void EvalSpecial(ProcessingContext context)
 {
     int counterMarker = context.Processor.CounterMarker;
     if (!context.LoadVariable(base.var))
     {
         XPathMessageContext.HeaderFun.InvokeInternal(context, 0);
         context.SaveVariable(base.var, context.Processor.ElapsedCount(counterMarker));
     }
     NodeSequence[] sequenceArray = new NodeSequence[base.children.Count];
     NodeSequence sequence = context.Sequences[context.TopSequenceArg.basePtr].Sequence;
     for (int i = 0; i < base.children.Count; i++)
     {
         sequenceArray[i] = context.CreateSequence();
         sequenceArray[i].StartNodeset();
     }
     SeekableXPathNavigator node = sequence[0].GetNavigator();
     if (node.MoveToFirstChild())
     {
         do
         {
             if (node.NodeType == XPathNodeType.Element)
             {
                 List<SubExpr> list;
                 Dictionary<string, List<SubExpr>> dictionary;
                 string localName = node.LocalName;
                 string namespaceURI = node.NamespaceURI;
                 if (this.nameLookup.TryGetValue(namespaceURI, out dictionary))
                 {
                     if (dictionary.TryGetValue(localName, out list))
                     {
                         for (int k = 0; k < list.Count; k++)
                         {
                             sequenceArray[this.indexLookup[list[k]].i].Add(node);
                         }
                     }
                     if (dictionary.TryGetValue(QueryDataModel.Wildcard, out list))
                     {
                         for (int m = 0; m < list.Count; m++)
                         {
                             sequenceArray[this.indexLookup[list[m]].i].Add(node);
                         }
                     }
                 }
                 if (this.nameLookup.TryGetValue(QueryDataModel.Wildcard, out dictionary) && dictionary.TryGetValue(QueryDataModel.Wildcard, out list))
                 {
                     for (int n = 0; n < list.Count; n++)
                     {
                         sequenceArray[this.indexLookup[list[n]].i].Add(node);
                     }
                 }
             }
         }
         while (node.MoveToNext());
     }
     int num6 = context.Processor.CounterMarker;
     for (int j = 0; j < base.children.Count; j++)
     {
         if (base.children[j].useSpecial)
         {
             sequenceArray[j].StopNodeset();
             context.Processor.CounterMarker = num6;
             context.PushSequenceFrame();
             context.PushSequence(sequenceArray[j]);
             for (Opcode opcode = base.children[j].FirstOp.Next; opcode != null; opcode = opcode.Eval(context))
             {
             }
             context.SaveVariable(base.children[j].var, context.Processor.ElapsedCount(counterMarker));
             context.PopSequenceFrame();
         }
         else
         {
             context.ReleaseSequence(sequenceArray[j]);
         }
     }
     context.Processor.CounterMarker = counterMarker;
 }
Ejemplo n.º 19
0
        internal override Opcode Eval(ProcessingContext context)
        {
            // The query processor object also serves as the query document root
            int iterationCount = context.IterationCount;
            Opcode returnOpcode = this.next;

            // A root is always an initial step
            context.PushSequenceFrame();
            NodeSequence seq = context.CreateSequence();
            if (this.next != null && 0 != (this.next.Flags & OpcodeFlags.CompressableSelect))
            {
                SeekableXPathNavigator node = context.Processor.ContextNode;
                node.MoveToRoot();
                returnOpcode = this.next.Eval(seq, node);
                while (returnOpcode != null && 0 != (returnOpcode.Flags & OpcodeFlags.CompressableSelect))
                {
                    returnOpcode = returnOpcode.Next;
                }
            }
            else
            {
                // Roots do not have any qnames..
                seq.StartNodeset();
                SeekableXPathNavigator node = context.Processor.ContextNode;
                node.MoveToRoot();
                seq.Add(node);
                seq.StopNodeset();
            }

            if (seq.Count == 0)
            {
                context.ReleaseSequence(seq);
                seq = NodeSequence.Empty;
            }

            for (int i = 0; i < iterationCount; ++i)
            {
                context.PushSequence(seq);
            }
            if (iterationCount > 1)
                seq.refCount += iterationCount - 1;

            return returnOpcode;
        }
Ejemplo n.º 20
0
        internal override Opcode Eval(ProcessingContext context)
        {
            StackFrame topFrame = context.TopSequenceArg;
            Value[] sequences = context.Sequences;

            bool wasInUse = context.SequenceStackInUse;
            context.PushSequenceFrame();
            for (int i = topFrame.basePtr; i <= topFrame.endPtr; ++i)
            {
                NodeSequence sourceSeq = sequences[i].Sequence;
                int count = sourceSeq.Count;
                if (count == 0)
                {
                    // Empty sequence. 
                    // Since there are no nodes in the sequence, we will track this sequence also 
                    // using an empty sequence 
                    if (!wasInUse)
                        context.PushSequence(NodeSequence.Empty);
                }
                else
                {
                    NodeSequenceItem[] items = sourceSeq.Items;
                    for (int item = 0; item < sourceSeq.Count; ++item)
                    {
                        SeekableXPathNavigator node = items[item].GetNavigator();
                        Fx.Assert(null != node, "");

                        NodeSequence newSeq = context.CreateSequence();
                        newSeq.StartNodeset();

                        this.criteria.Select(node, newSeq);

                        newSeq.StopNodeset();

                        context.PushSequence(newSeq);
                    }
                }
            }
            return this.next;
        }
Ejemplo n.º 21
0
        internal override void EvalSpecial(ProcessingContext context)
        {
            int counterMarker = context.Processor.CounterMarker;

            if (!context.LoadVariable(base.var))
            {
                XPathMessageContext.HeaderFun.InvokeInternal(context, 0);
                context.SaveVariable(base.var, context.Processor.ElapsedCount(counterMarker));
            }
            NodeSequence[] sequenceArray = new NodeSequence[base.children.Count];
            NodeSequence   sequence      = context.Sequences[context.TopSequenceArg.basePtr].Sequence;

            for (int i = 0; i < base.children.Count; i++)
            {
                sequenceArray[i] = context.CreateSequence();
                sequenceArray[i].StartNodeset();
            }
            SeekableXPathNavigator node = sequence[0].GetNavigator();

            if (node.MoveToFirstChild())
            {
                do
                {
                    if (node.NodeType == XPathNodeType.Element)
                    {
                        List <SubExpr> list;
                        Dictionary <string, List <SubExpr> > dictionary;
                        string localName    = node.LocalName;
                        string namespaceURI = node.NamespaceURI;
                        if (this.nameLookup.TryGetValue(namespaceURI, out dictionary))
                        {
                            if (dictionary.TryGetValue(localName, out list))
                            {
                                for (int k = 0; k < list.Count; k++)
                                {
                                    sequenceArray[this.indexLookup[list[k]].i].Add(node);
                                }
                            }
                            if (dictionary.TryGetValue(QueryDataModel.Wildcard, out list))
                            {
                                for (int m = 0; m < list.Count; m++)
                                {
                                    sequenceArray[this.indexLookup[list[m]].i].Add(node);
                                }
                            }
                        }
                        if (this.nameLookup.TryGetValue(QueryDataModel.Wildcard, out dictionary) && dictionary.TryGetValue(QueryDataModel.Wildcard, out list))
                        {
                            for (int n = 0; n < list.Count; n++)
                            {
                                sequenceArray[this.indexLookup[list[n]].i].Add(node);
                            }
                        }
                    }
                }while (node.MoveToNext());
            }
            int num6 = context.Processor.CounterMarker;

            for (int j = 0; j < base.children.Count; j++)
            {
                if (base.children[j].useSpecial)
                {
                    sequenceArray[j].StopNodeset();
                    context.Processor.CounterMarker = num6;
                    context.PushSequenceFrame();
                    context.PushSequence(sequenceArray[j]);
                    for (Opcode opcode = base.children[j].FirstOp.Next; opcode != null; opcode = opcode.Eval(context))
                    {
                    }
                    context.SaveVariable(base.children[j].var, context.Processor.ElapsedCount(counterMarker));
                    context.PopSequenceFrame();
                }
                else
                {
                    context.ReleaseSequence(sequenceArray[j]);
                }
            }
            context.Processor.CounterMarker = counterMarker;
        }
        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;
        }
        internal override void InvokeInternal(ProcessingContext context, int argCount)
        {
            StackFrame actorArg = context.TopArg;

            SeekableXPathNavigator nav = context.Processor.ContextNode;
            long p = nav.CurrentPosition;
            while (actorArg.basePtr <= actorArg.endPtr)
            {
                string actor = context.PeekString(actorArg.basePtr);
                NodeSequence seq = context.CreateSequence();

                if (MoveToHeader(nav) && nav.MoveToFirstChild())
                {
                    do
                    {
                        // PERF, [....], this will be faster if I cache the envelope namespace to do the
                        //               actor lookup by hand
                        long pos = nav.CurrentPosition;
                        string navActor = XPathMessageFunctionActor.ExtractFromNavigator(nav);
                        nav.CurrentPosition = pos;

                        if (navActor == actor)
                        {
                            seq.Add(nav);
                        }
                    } while (nav.MoveToNext());
                }

                context.SetValue(context, actorArg.basePtr, seq);

                actorArg.basePtr++;
            }
            nav.CurrentPosition = p;
        }
        internal override void InvokeInternal(ProcessingContext context, int argCount)
        {
            int count = context.IterationCount;
            context.PushSequenceFrame();
            if (count > 0)
            {
                NodeSequence seq = context.CreateSequence();
                seq.StartNodeset();
                SeekableXPathNavigator nav = context.Processor.ContextNode;

                long p = nav.CurrentPosition;
                if (MoveToBody(nav))
                {
                    seq.Add(nav);
                }
                nav.CurrentPosition = p;

                seq.StopNodeset();
                context.PushSequence(seq);
                for (int i = 1; i < count; ++i)
                {
                    seq.refCount++;
                    context.PushSequence(seq);
                }
            }
        }
 internal NodeSequence Union(ProcessingContext context, NodeSequence otherSeq)
 {
     NodeSequence sequence = context.CreateSequence();
     SortedBuffer<QueryNode, QueryNodeComparer> buffer = new SortedBuffer<QueryNode, QueryNodeComparer>(staticQueryNodeComparerInstance);
     for (int i = 0; i < this.count; i++)
     {
         buffer.Add(this.items[i].Node);
     }
     for (int j = 0; j < otherSeq.count; j++)
     {
         buffer.Add(otherSeq.items[j].Node);
     }
     for (int k = 0; k < buffer.Count; k++)
     {
         sequence.Add(buffer[k]);
     }
     sequence.RenumberItems();
     return sequence;
 }
Ejemplo n.º 26
0
        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;
        }
Ejemplo n.º 27
0
        internal static void IterateAndPushSequences(ProcessingContext context)
        {
            StackFrame sequences = context.TopSequenceArg;
            Value[] sequenceBuffer = context.Sequences;

            context.PushFrame();
            while (sequences.basePtr <= sequences.endPtr)
            {
                NodeSequence sourceSeq = sequenceBuffer[sequences.basePtr++].Sequence;
                int count = sourceSeq.Count;
                if (count == 0)
                {
                    context.PushSequence(NodeSequence.Empty);
                }
                else
                {
                    for (int item = 0; item < sourceSeq.Count; ++item)
                    {
                        NodeSequence newSequence = context.CreateSequence();
                        newSequence.StartNodeset();
                        newSequence.Add(ref sourceSeq.Items[item]);
                        newSequence.StopNodeset();
                        context.Push(newSequence);
                    }
                }
            }
        }
        internal override void EvalSpecial(ProcessingContext context)
        {
            int marker = context.Processor.CounterMarker;

            if (!context.LoadVariable(this.var))
            {
                XPathMessageContext.HeaderFun.InvokeInternal(context, 0);
                context.SaveVariable(this.var, context.Processor.ElapsedCount(marker));
            }

            // WS, [....], see if we can put this array in the processor to save
            //             an allocation.  Perhaps we can use the variables slot we're going to fill
            NodeSequence[] childSequences = new NodeSequence[this.children.Count];
            NodeSequence seq = context.Sequences[context.TopSequenceArg.basePtr].Sequence;
            for (int i = 0; i < this.children.Count; ++i)
            {
                childSequences[i] = context.CreateSequence();
                childSequences[i].StartNodeset();
            }

            // Perform the index
            SeekableXPathNavigator nav = seq[0].GetNavigator();
            if (nav.MoveToFirstChild())
            {
                do
                {
                    if (nav.NodeType == XPathNodeType.Element)
                    {
                        List<SubExpr> lst;
                        string name = nav.LocalName;
                        string ns = nav.NamespaceURI;
                        Dictionary<string, List<SubExpr>> nextLookup;
                        if (this.nameLookup.TryGetValue(ns, out nextLookup))
                        {
                            if (nextLookup.TryGetValue(name, out lst))
                            {
                                for (int i = 0; i < lst.Count; ++i)
                                {
                                    childSequences[this.indexLookup[lst[i]].i].Add(nav);
                                }
                            }

                            if (nextLookup.TryGetValue(QueryDataModel.Wildcard, out lst))
                            {
                                for (int i = 0; i < lst.Count; ++i)
                                {
                                    childSequences[this.indexLookup[lst[i]].i].Add(nav);
                                }
                            }
                        }

                        if (this.nameLookup.TryGetValue(QueryDataModel.Wildcard, out nextLookup))
                        {
                            if (nextLookup.TryGetValue(QueryDataModel.Wildcard, out lst))
                            {
                                for (int i = 0; i < lst.Count; ++i)
                                {
                                    childSequences[this.indexLookup[lst[i]].i].Add(nav);
                                }
                            }
                        }
                    }
                } while (nav.MoveToNext());
            }

            int secondMarker = context.Processor.CounterMarker;
            for (int i = 0; i < this.children.Count; ++i)
            {
                if (this.children[i].useSpecial)
                {
                    childSequences[i].StopNodeset();
                    context.Processor.CounterMarker = secondMarker;
                    context.PushSequenceFrame();
                    context.PushSequence(childSequences[i]);
                    Opcode op = this.children[i].FirstOp.Next;
                    while (op != null)
                    {
                        op = op.Eval(context);
                    }
                    context.SaveVariable(this.children[i].var, context.Processor.ElapsedCount(marker));
                    context.PopSequenceFrame();
                }
                else
                {
                    context.ReleaseSequence(childSequences[i]);
                    //context.SetVariable(this.children[i].Variable, null, 0);
                }
            }

            context.Processor.CounterMarker = marker;
        }
Ejemplo n.º 29
0
        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);
        }
 internal static void IterateAndPushSequences(ProcessingContext context)
 {
     StackFrame topSequenceArg = context.TopSequenceArg;
     Value[] sequences = context.Sequences;
     context.PushFrame();
     while (topSequenceArg.basePtr <= topSequenceArg.endPtr)
     {
         NodeSequence sequence = sequences[topSequenceArg.basePtr++].Sequence;
         if (sequence.Count == 0)
         {
             context.PushSequence(NodeSequence.Empty);
         }
         else
         {
             for (int i = 0; i < sequence.Count; i++)
             {
                 NodeSequence sequence2 = context.CreateSequence();
                 sequence2.StartNodeset();
                 sequence2.Add(ref sequence.Items[i]);
                 sequence2.StopNodeset();
                 context.Push(sequence2);
             }
         }
     }
 }
Ejemplo n.º 31
0
        internal override Opcode Eval(ProcessingContext context)
        {
            Value[] values = context.Values;
            StackFrame arg = context.TopArg;

            for (int i = arg.basePtr; i <= arg.endPtr; ++i)
            {
                Fx.Assert(ValueDataType.Sequence == values[i].Type, "");
                NodeSequence seq = values[i].Sequence;

                NodeSequence newSeq = context.CreateSequence();
                for (int j = 0; j < seq.Count; ++j)
                {
                    NodeSequenceItem item = seq[j];
                    newSeq.AddCopy(ref item);
                }
                newSeq.Merge();

                context.SetValue(context, i, newSeq);
            }

            return this.next;
        }
Ejemplo n.º 32
0
        internal override Opcode Eval(ProcessingContext context)
        {
            StackFrame topFrame = context.TopSequenceArg;
            SeekableXPathNavigator node = null;
            Value[] sequences = context.Sequences;

            for (int i = topFrame.basePtr; i <= topFrame.endPtr; ++i)
            {
                // Each NodeSequence will generate a new one, but only if the source FilterSequence isn't empty
                // If the source FilterSequence is empty, release it and replace it with an empty sequence
                NodeSequence sourceSeq = sequences[i].Sequence;
                int sourceSeqCount = sourceSeq.Count;
                if (sourceSeqCount == 0)
                {
                    context.ReplaceSequenceAt(i, NodeSequence.Empty);
                    context.ReleaseSequence(sourceSeq);
                }
                else
                {
                    NodeSequenceItem[] items = sourceSeq.Items;
                    if (sourceSeq.CanReuse(context))
                    {
                        node = items[0].GetNavigator();
                        sourceSeq.Clear();
                        sourceSeq.StartNodeset();

                        this.criteria.Select(node, sourceSeq);

                        sourceSeq.StopNodeset();
                    }
                    else
                    {
                        NodeSequence newSeq = null;
                        for (int item = 0; item < sourceSeqCount; ++item)
                        {
                            node = items[item].GetNavigator();
                            Fx.Assert(null != node, "");
                            if (null == newSeq)
                            {
                                newSeq = context.CreateSequence();
                            }
                            newSeq.StartNodeset();
                            this.criteria.Select(node, newSeq);
                            newSeq.StopNodeset();
                        }
                        context.ReplaceSequenceAt(i, (null != newSeq) ? newSeq : NodeSequence.Empty);
                        context.ReleaseSequence(sourceSeq);
                    }
                }
            }

            return this.next;
        }
Ejemplo n.º 33
0
        internal override Opcode Eval(ProcessingContext context)
        {
            context.PushFrame();
            int count = context.IterationCount;
            if (count > 0)
            {
                object o = this.variable.Evaluate(this.xsltContext);
                if (o == null)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new QueryProcessingException(QueryProcessingError.Unexpected, SR.GetString(SR.QueryVariableNull)));
                }

                switch (this.type)
                {
                    case ValueDataType.Boolean:
                        context.Push((bool)o, count);
                        break;

                    case ValueDataType.Double:
                        context.Push((double)o, count);
                        break;

                    case ValueDataType.String:
                        context.Push((string)o, count);
                        break;

                    case ValueDataType.Sequence:
                        XPathNodeIterator iter = (XPathNodeIterator)o;
                        NodeSequence seq = context.CreateSequence();
                        while (iter.MoveNext())
                        {
                            SeekableXPathNavigator nav = iter.Current as SeekableXPathNavigator;
                            if (nav != null)
                            {
                                seq.Add(nav);
                            }
                            else
                            {
                                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new QueryProcessingException(QueryProcessingError.Unexpected, SR.GetString(SR.QueryMustBeSeekable)));
                            }
                        }
                        context.Push(seq, count);
                        break;

                    default:
                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperCritical(new QueryProcessingException(QueryProcessingError.Unexpected, SR.GetString(SR.QueryVariableTypeNotSupported, this.variable.VariableType.ToString())));
                }
            }
            return this.next;
        }
Ejemplo n.º 34
0
        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);
        }