| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.databinding.tool.expr; |
| |
| import android.databinding.tool.reflection.ModelAnalyzer; |
| import android.databinding.tool.reflection.ModelClass; |
| |
| import java.util.List; |
| |
| public class MathExpr extends Expr { |
| final String mOp; |
| MathExpr(Expr left, String op, Expr right) { |
| super(left, right); |
| mOp = op; |
| } |
| |
| @Override |
| protected String computeUniqueKey() { |
| return sUniqueKeyJoiner.join(getLeft().getUniqueKey(), mOp, getRight().getUniqueKey()); |
| } |
| |
| @Override |
| protected ModelClass resolveType(ModelAnalyzer modelAnalyzer) { |
| if ("+".equals(mOp)) { |
| // TODO we need upper casting etc. |
| if (getLeft().getResolvedType().isString() |
| || getRight().getResolvedType().isString()) { |
| return modelAnalyzer.findClass(String.class); |
| } |
| } |
| return modelAnalyzer.findCommonParentOf(getLeft().getResolvedType(), |
| getRight().getResolvedType()); |
| } |
| |
| @Override |
| protected List<Dependency> constructDependencies() { |
| return constructDynamicChildrenDependencies(); |
| } |
| |
| public String getOp() { |
| return mOp; |
| } |
| |
| public Expr getLeft() { |
| return getChildren().get(0); |
| } |
| |
| public Expr getRight() { |
| return getChildren().get(1); |
| } |
| } |