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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      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 package android.databinding.tool.reflection;
     18 
     19 import java.util.List;
     20 import java.util.Map;
     21 
     22 /**
     23  * A class that can be used by ModelAnalyzer without any backing model. This is used
     24  * for methods on ViewDataBinding subclasses that haven't been generated yet.
     25  *
     26  * @see ModelAnalyzer#injectViewDataBinding(String, Map, Map)
     27  */
     28 public class InjectedMethod extends ModelMethod {
     29     private final InjectedClass mContainingClass;
     30     private final String mName;
     31     private final String mReturnTypeName;
     32     private final String[] mParameterTypeNames;
     33     private ModelClass[] mParameterTypes;
     34     private ModelClass mReturnType;
     35     private boolean mIsStatic;
     36 
     37     public InjectedMethod(InjectedClass containingClass, boolean isStatic, String name,
     38             String returnType, String... parameters) {
     39         mContainingClass = containingClass;
     40         mName = name;
     41         mIsStatic = isStatic;
     42         mReturnTypeName = returnType;
     43         mParameterTypeNames = parameters;
     44     }
     45 
     46     @Override
     47     public ModelClass getDeclaringClass() {
     48         return mContainingClass;
     49     }
     50 
     51     @Override
     52     public ModelClass[] getParameterTypes() {
     53         if (mParameterTypes == null) {
     54             if (mParameterTypeNames == null) {
     55                 mParameterTypes = new ModelClass[0];
     56             } else {
     57                 mParameterTypes = new ModelClass[mParameterTypeNames.length];
     58                 ModelAnalyzer modelAnalyzer = ModelAnalyzer.getInstance();
     59                 for (int i = 0; i < mParameterTypeNames.length; i++) {
     60                     mParameterTypes[i] = modelAnalyzer.findClass(mParameterTypeNames[i], null);
     61                 }
     62             }
     63         }
     64         return mParameterTypes;
     65     }
     66 
     67     @Override
     68     public String getName() {
     69         return mName;
     70     }
     71 
     72     @Override
     73     public ModelClass getReturnType(List<ModelClass> args) {
     74         if (mReturnType == null) {
     75             mReturnType = ModelAnalyzer.getInstance().findClass(mReturnTypeName, null);
     76         }
     77         return mReturnType;
     78     }
     79 
     80     @Override
     81     public boolean isVoid() {
     82         return getReturnType().isVoid();
     83     }
     84 
     85     @Override
     86     public boolean isPublic() {
     87         return true;
     88     }
     89 
     90     @Override
     91     public boolean isProtected() {
     92         return false;
     93     }
     94 
     95     @Override
     96     public boolean isStatic() {
     97         return mIsStatic;
     98     }
     99 
    100     @Override
    101     public boolean isAbstract() {
    102         return true;
    103     }
    104 
    105     @Override
    106     public boolean isBindable() {
    107         return false;
    108     }
    109 
    110     @Override
    111     public int getMinApi() {
    112         return 0;
    113     }
    114 
    115     @Override
    116     public String getJniDescription() {
    117         return TypeUtil.getInstance().getDescription(this);
    118     }
    119 
    120     @Override
    121     public boolean isVarArgs() {
    122         return false;
    123     }
    124 
    125     @Override
    126     public String toString() {
    127         StringBuilder sb = new StringBuilder("public ");
    128         if (mIsStatic) {
    129             sb.append("static ");
    130         }
    131         sb.append(mReturnTypeName)
    132                 .append(' ')
    133                 .append(mName)
    134                 .append("(");
    135         if (mParameterTypeNames != null) {
    136             for (int i = 0; i < mParameterTypeNames.length; i++) {
    137                 if (i != 0) {
    138                     sb.append(", ");
    139                 }
    140                 sb.append(mParameterTypeNames[i]);
    141             }
    142         }
    143         sb.append(')');
    144         return sb.toString();
    145     }
    146 }
    147