/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.lang.reflect.Type;
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/**
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* Throw a few things at the verifier, all of which are expected to pass.
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*/
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public class Main {
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static public void main(String[] args) {
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tryBlah(1);
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System.out.println("Zorch.");
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System.out.println("10 == " + instanceOfTest(10));
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}
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/*
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* Make sure the verifier is handling type merge of arrays of
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* references correctly.
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*/
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static Object[] arrayCheck1(int wanted) {
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String[] arrayOne;
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Integer[] arrayTwo;
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arrayOne = new String[1];
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arrayTwo = new Integer[1];
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switch (wanted) {
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case 0: return arrayOne;
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case 1: return arrayTwo;
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default: return null;
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}
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}
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static Object arrayCheck1b(int wanted) {
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String[] arrayOne;
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Integer[] arrayTwo;
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int[] arrayThree;
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arrayOne = new String[1];
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arrayTwo = new Integer[1];
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arrayThree = new int[1];
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switch (wanted) {
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case 0: return arrayOne;
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case 1: return arrayTwo;
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case 2: return arrayThree;
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default: return null;
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}
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}
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static Object[] arrayCheck2(int wanted) {
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String[][] arrayOne;
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String[][] arrayTwo;
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Integer[][] arrayThree;
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arrayOne = new String[1][];
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arrayTwo = new String[1][];
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arrayThree = new Integer[1][];
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switch (wanted) {
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case 0: return arrayOne;
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case 1: return arrayTwo;
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case 2: return arrayThree;
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default: return null;
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}
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}
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static Object[] arrayCheck3(int wanted) {
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String[][] arrayTwo;
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String[][][][] arrayFour;
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arrayTwo = new String[1][];
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arrayFour = new String[1][][][];
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switch (wanted) {
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case 0: return arrayTwo;
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case 1: return arrayFour;
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default: return null;
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}
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}
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/*
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* Check return type merge.
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*/
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private Type[] typeTest() {
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if(this == null) {
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return (Class<?>[])null;
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}
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return (Type[])null;
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}
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/*
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* Exercise the blahs.
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*/
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static void tryBlah(int num) {
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BlahFeature feature = null; // interface ref
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switch (num) {
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case 1:
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feature = new BlahOne();
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break;
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default:
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feature = new BlahTwo();
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break;
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}
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feature.doStuff();
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}
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static int instanceOfTest(Integer x) {
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Object y = x;
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if (y instanceof String) {
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// Bug: 15808277
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// Non-sensical instance-of to check merging after the branch doesn't result in a verifier
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// error.
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((String)y).charAt(0);
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}
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return x.intValue();
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}
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}
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