public IExpressionExecutor Create(IDictionary <Type, Type> functionTypeToHandlerTypeMap)
{
IExpressionExecutor expressionExecutor = null;
expressionExecutor = new ExpressionExecutor(new ConstantExpressionExecutor(),
new FunctionExpressionExecutor(new FunctionParametersFiller(new Lazy <IExpressionExecutor>(() => expressionExecutor)),
new DictionarySourcedActivatorUsingFunctionHandlerResolver(functionTypeToHandlerTypeMap)),
new BatchExpressionExecutor(new Lazy <IExpressionExecutor>(() => expressionExecutor)));
return(expressionExecutor);
}
public IEnumerable <UiNode> Search(UiNode root, IExpressionExecutor filter, int max = int.MaxValue)
{
try
{
//添加任务
return(SearchChild(root, filter, max));
}
catch (Exception)
{
return(new List <UiNode>());
}
}
private static IEnumerable <UiNode> SearchChild(UiNode root, IExpressionExecutor filter, int max)
{
var result = new List <UiNode>();
var stack = new Queue <UiNode>();
stack.Enqueue(root);
while (stack.Count > 0)
{
var parent = stack.Dequeue();
for (var i = 0; i < parent.ChildCount; i++)
{
var child = parent.Child(i);
if (child == null)
{
continue;
}
stack.Enqueue(child);
}
if (filter.Execute(parent))
{
result.Add(parent);
if (result.Count >= max)
{
break;
}
}
else
{
if (parent != root)
{
parent.Recycle();
}
}
}
return(result);
}
private object Act(IBatchExpression expression, IExpressionExecutor expressionExecutor)
{
var executor = new BatchExpressionExecutor(new Lazy <IExpressionExecutor>(() => expressionExecutor));
return(executor.Execute(expression));
}
private void Act <TFunction>(TFunction function, IDictionary <string, IExpression> argumentExpressions, IExpressionExecutor expressionExecutor = null)
{
var filler = new FunctionParametersFiller(new Lazy <IExpressionExecutor>(() => expressionExecutor));
filler.Fill(function, argumentExpressions);
}
