ComparisonExpr.java revision fead9ca09b117136b35bc5bf137340a754f9eddd 
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 ComparisonExpr extends Expr {
25    final String mOp;
26    ComparisonExpr(String op, Expr left, Expr right) {
27        super(left, right);
28        mOp = op;
29    }
30
31    @Override
32    protected String computeUniqueKey() {
33        return sUniqueKeyJoiner.join(mOp, super.computeUniqueKey());
34    }
35
36    @Override
37    protected ModelClass resolveType(ModelAnalyzer modelAnalyzer) {
38        return modelAnalyzer.loadPrimitive("boolean");
39    }
40
41    @Override
42    protected List<Dependency> constructDependencies() {
43        return constructDynamicChildrenDependencies();
44    }
45
46    public String getOp() {
47        return mOp;
48    }
49
50    public Expr getLeft() {
51        return getChildren().get(0);
52    }
53
54    public Expr getRight() {
55        return getChildren().get(1);
56    }
57
58    @Override
59    public boolean isEqualityCheck() {
60        return "==".equals(mOp.trim());
61    }
62}
63