src/Tizen.NUI/src/internal/EXaml/Operation/GatherMethod.cs

   1 /*
   2  * Copyright(c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17 using System;
  18 using System.Collections.Generic;
  19 using System.Linq;
  20 using System.Reflection;
  21 using System.Text;
  22 using Tizen.NUI.BaseComponents;
  23 using Tizen.NUI.Binding;
  24 using Tizen.NUI.Binding.Internals;
  25
  26 namespace Tizen.NUI.EXaml
  27 {
  28     internal class GatherMethod : Operation
  29     {
  30         public GatherMethod(GlobalDataList globalDataList, List<object> operationInfo)
  31         {
  32             typeIndex = (int)operationInfo[0];
  33             methodName = operationInfo[1] as string;
  34             paramList = operationInfo[2] as List<object>;
  35             this.globalDataList = globalDataList;
  36         }
  37
  38         private GlobalDataList globalDataList;
  39
  40         public void Do()
  41         {
  42             List<Type> paramTypeList = new List<Type>();
  43
  44             if (null != paramList)
  45             {
  46                 foreach (var obj in paramList)
  47                 {
  48                     int index = (int)obj;
  49
  50                     if (null == paramTypeList)
  51                     {
  52                         paramTypeList = new List<Type>();
  53                     }
  54
  55                     if (index >= 0)
  56                     {
  57                         paramTypeList.Add(globalDataList.GatheredTypes[index]);
  58                     }
  59                     else
  60                     {
  61                         paramTypeList.Add(GetBaseType.GetBaseTypeByIndex(index));
  62                     }
  63                 }
  64             }
  65
  66             Func<MethodInfo, bool> isMatch = m =>
  67             {
  68                 if (m.Name != methodName)
  69                     return false;
  70                 var p = m.GetParameters();
  71                 if (p.Length != paramTypeList.Count)
  72                     return false;
  73                 for (var i = 0; i < p.Length; i++)
  74                 {
  75                     if (p[i].ParameterType != paramTypeList[i])
  76                     {
  77                         return false;
  78                     }
  79                 }
  80                 return true;
  81             };
  82
  83             var type = globalDataList.GatheredTypes[typeIndex];
  84             var method = type.GetRuntimeMethods().FirstOrDefault(isMatch);
  85             globalDataList.GatheredMethods.Add(method);
  86         }
  87
  88         private int typeIndex;
  89         private string methodName;
  90         private List<object> paramList;
  91     }
  92 }