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 17package android.databinding.tool.expr; 18 19import android.databinding.tool.reflection.ModelAnalyzer; 20import android.databinding.tool.reflection.ModelClass; 21 22import java.util.List; 23 24public class UnaryExpr extends Expr { 25 final String mOp; 26 UnaryExpr(String op, Expr expr) { 27 super(expr); 28 mOp = op; 29 } 30 31 @Override 32 protected String computeUniqueKey() { 33 return join(getOpStr(), getExpr().getUniqueKey()); 34 } 35 36 @Override 37 protected ModelClass resolveType(ModelAnalyzer modelAnalyzer) { 38 return getExpr().getResolvedType(); 39 } 40 41 @Override 42 protected List<Dependency> constructDependencies() { 43 return constructDynamicChildrenDependencies(); 44 } 45 46 private String getOpStr() { 47 switch (mOp.charAt(0)) { 48 case '~' : return "bitNot"; 49 case '!' : return "logicalNot"; 50 case '-' : return "unaryMinus"; 51 case '+' : return "unaryPlus"; 52 } 53 return mOp; 54 } 55 56 public String getOp() { 57 return mOp; 58 } 59 60 public Expr getExpr() { 61 return getChildren().get(0); 62 } 63} 64