// // Execution // internal override void Execute(Processor processor, ActionFrame frame) { Debug.Assert(processor != null && frame != null); switch (frame.State) { case Initialized: if (this.variableCount > 0) { frame.AllocateVariables(this.variableCount); } if (this.containedActions != null && this.containedActions.Count > 0) { processor.PushActionFrame(frame); frame.State = ProcessingChildren; } else { frame.Finished(); } break; // Allow children to run case ProcessingChildren: frame.Finished(); break; default: Debug.Fail("Invalid Container action execution state"); break; } }
internal override void Execute(Processor processor, ActionFrame frame) { Debug.Assert(processor != null && frame != null); switch (frame.State) { case Initialized: frame.AllocateVariables(variableCount); XPathNavigator root = processor.Document.Clone(); root.MoveToRoot(); frame.InitNodeSet(new XPathSingletonIterator(root)); if (this.containedActions != null && this.containedActions.Count > 0) { processor.PushActionFrame(frame); } frame.State = QueryInitialized; break; case QueryInitialized: Debug.Assert(frame.State == QueryInitialized); frame.NextNode(processor); Debug.Assert(Processor.IsRoot(frame.Node)); if (processor.Debugger != null) { // this is like apply-templates, but we don't have it on stack. // Pop the stack, otherwise last instruction will be on it. processor.PopDebuggerStack(); } processor.PushTemplateLookup(frame.NodeSet, /*mode:*/ null, /*importsOf:*/ null); frame.State = RootProcessed; break; case RootProcessed: Debug.Assert(frame.State == RootProcessed); frame.Finished(); break; default: Debug.Fail("Invalid RootAction execution state"); break; } }
internal override void Execute(Processor processor, ActionFrame frame) { Debug.Assert(processor != null && frame != null); switch (frame.State) { case Initialized: frame.AllocateVariables(variableCount); XPathNavigator root = processor.Document.Clone(); root.MoveToRoot(); frame.InitNodeSet(new XPathSingletonIterator(root)); if (this.containedActions != null && this.containedActions.Count > 0) { processor.PushActionFrame(frame); } frame.State = QueryInitialized; break; case QueryInitialized: Debug.Assert(frame.State == QueryInitialized); frame.NextNode(processor); Debug.Assert(Processor.IsRoot(frame.Node)); if (processor.Debugger != null) { // this is like apply-templates, but we don't have it on stack. // Pop the stack, otherwise last instruction will be on it. processor.PopDebuggerStack(); } processor.PushTemplateLookup(frame.NodeSet, /*mode:*/null, /*importsOf:*/null); frame.State = RootProcessed; break; case RootProcessed: Debug.Assert(frame.State == RootProcessed); frame.Finished(); break; default: Debug.Fail("Invalid RootAction execution state"); break; } }