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.expr; 18 19 import android.databinding.tool.ext.ExtKt; 20 import android.databinding.tool.reflection.ModelAnalyzer; 21 import android.databinding.tool.reflection.ModelClass; 22 import android.databinding.tool.util.BrNameUtil; 23 import android.databinding.tool.util.L; 24 25 public class ObservableFieldExpr extends FieldAccessExpr { 26 27 ObservableFieldExpr(Expr parent, String name) { 28 super(parent, name); 29 } 30 31 @Override 32 public Expr resolveListeners(ModelClass listener, Expr parent) { 33 return this; // ObservableFields aren't listeners 34 } 35 36 @Override 37 protected String computeUniqueKey() { 38 return join(mName, "..", getTarget().getUniqueKey()); 39 } 40 41 @Override 42 protected ModelClass resolveType(ModelAnalyzer modelAnalyzer) { 43 if (mGetter == null) { 44 Expr target = getTarget(); 45 target.getResolvedType(); 46 boolean isStatic = target instanceof StaticIdentifierExpr; 47 ModelClass resolvedType = target.getResolvedType(); 48 L.d("resolving %s. Resolved class type: %s", this, resolvedType); 49 50 mGetter = resolvedType.findGetterOrField(mName, isStatic); 51 52 if (mGetter == null) { 53 L.e("Could not find accessor %s.%s", resolvedType.getCanonicalName(), mName); 54 return null; 55 } 56 57 if (mGetter.isStatic() && !isStatic) { 58 // found a static method on an instance. register a new one 59 replaceStaticIdentifier(resolvedType); 60 } 61 if (hasBindableAnnotations()) { 62 mBrName = ExtKt.br(BrNameUtil.brKey(getGetter())); 63 } else { 64 mBrName = ExtKt.br(mName); 65 } 66 } 67 return mGetter.resolvedType; 68 } 69 70 @Override 71 public Expr cloneToModel(ExprModel model) { 72 final Expr clonedTarget = getTarget().cloneToModel(model); 73 return model.observableField(clonedTarget, mName); 74 } 75 76 @Override 77 public String toString() { 78 return getTarget().toString() + '.' + mName; 79 } 80 } 81
