protected override Node VisitMethodCall(MethodCallExpression m)
{
SqlLikeType type;
if (Enum.TryParse(m.Method.Name, true, out type))
{
Expression objExp = m.Object;
var args = m.Arguments;
if (objExp != null)
{
var member = m.Object as MemberExpression;
var fieldValue = ExpressionHelper.GetExpressionValue(args.FirstOrDefault());
var node = new MemberNode(member);
return(new LikeNode(type, node, fieldValue));
}
else
{
if (args != null && args.Count > 1)
{
var values = ExpressionHelper.GetExpressionValue(args.FirstOrDefault());
var member = args[1] as MemberExpression;
var node = new MemberNode(member);
return(new InNode(node, values));
}
}
throw new NotSupportedException("不能解析该MethodCall_Lambda表达式");
}
else
{
var handler = MethodConfig.GetMethodHandler(m.Method.DeclaringType, m.Method.Name);
if (handler != null)
{
return(handler(m.Object, m.Arguments, m));
}
else
{
var value = ExpressionHelper.GetMethodCallValue(m);
return(new ValueNode(value));
}
}
}
