1 /* 2 * Copyright (C) 2015 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.expr; 18 19 import android.databinding.tool.processing.ErrorMessages; 20 import android.databinding.tool.reflection.ModelAnalyzer; 21 import android.databinding.tool.reflection.ModelClass; 22 import android.databinding.tool.util.Preconditions; 23 import android.databinding.tool.writer.KCode; 24 import android.databinding.tool.writer.LayoutBinderWriterKt; 25 26 import com.google.common.collect.Lists; 27 28 import java.util.ArrayList; 29 import java.util.List; 30 31 public class IdentifierExpr extends Expr { 32 String mName; 33 String mUserDefinedType; 34 private boolean mIsDeclared; 35 IdentifierExpr(String name)36 IdentifierExpr(String name) { 37 mName = name; 38 } 39 getName()40 public String getName() { 41 return mName; 42 } 43 44 /** 45 * If this is root, its type should be set while parsing the XML document 46 * @param userDefinedType The type of this identifier 47 */ setUserDefinedType(String userDefinedType)48 public void setUserDefinedType(String userDefinedType) { 49 mUserDefinedType = userDefinedType; 50 } 51 52 @Override computeUniqueKey()53 protected String computeUniqueKey() { 54 return join(mName, super.computeUniqueKey()); 55 } 56 getUserDefinedType()57 public String getUserDefinedType() { 58 return mUserDefinedType; 59 } 60 61 @Override isDynamic()62 public boolean isDynamic() { 63 return true; 64 } 65 66 @Override resolveType(final ModelAnalyzer modelAnalyzer)67 protected ModelClass resolveType(final ModelAnalyzer modelAnalyzer) { 68 Preconditions.checkNotNull(mUserDefinedType, ErrorMessages.UNDEFINED_VARIABLE, mName); 69 return modelAnalyzer.findClass(mUserDefinedType, getModel().getImports()); 70 } 71 72 @Override constructDependencies()73 protected List<Dependency> constructDependencies() { 74 return new ArrayList<Dependency>(); 75 } 76 77 @Override asPackage()78 protected String asPackage() { 79 return mUserDefinedType == null ? mName : null; 80 } 81 82 @Override generateCode()83 protected KCode generateCode() { 84 return new KCode(LayoutBinderWriterKt.scopedName(this)); 85 } 86 setDeclared()87 public void setDeclared() { 88 mIsDeclared = true; 89 } 90 isDeclared()91 public boolean isDeclared() { 92 return mIsDeclared; 93 } 94 95 @Override getInvertibleError()96 public String getInvertibleError() { 97 return null; 98 } 99 100 @Override generateInverse(ExprModel model, Expr value, String bindingClassName)101 public Expr generateInverse(ExprModel model, Expr value, String bindingClassName) { 102 String thisType = bindingClassName + ".this"; 103 Expr target = model.builtInVariable(thisType, bindingClassName, thisType); 104 return model.methodCall(target, LayoutBinderWriterKt.getSetterName(this), 105 Lists.newArrayList(value)); 106 } 107 108 @Override cloneToModel(ExprModel model)109 public Expr cloneToModel(ExprModel model) { 110 return model.identifier(mName); 111 } 112 113 @Override toString()114 public String toString() { 115 return mName; 116 } 117 } 118