| // Copyright (c) 2020, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| package com.android.tools.r8.desugar; |
| |
| import static org.junit.Assume.assumeFalse; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.desugar.desugaredlibrary.DesugaredLibraryTestBase; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class InvokeSuperToEmulatedDefaultMethodTest extends DesugaredLibraryTestBase { |
| |
| private static final String EXPECTED = StringUtils.lines("bar", "bar"); |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| private final TestParameters parameters; |
| |
| public InvokeSuperToEmulatedDefaultMethodTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| private boolean needsDefaultInterfaceMethodDesugaring() { |
| return parameters.isDexRuntime() |
| && parameters.getApiLevel().isLessThan(apiLevelWithDefaultInterfaceMethodsSupport()); |
| } |
| |
| @Test |
| public void testReference() throws Exception { |
| assumeFalse(needsDefaultInterfaceMethodDesugaring()); |
| testForRuntime(parameters) |
| .addInnerClasses(InvokeSuperToEmulatedDefaultMethodTest.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testDesugaring() throws Exception { |
| assumeTrue(needsDefaultInterfaceMethodDesugaring()); |
| |
| testForD8() |
| .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.P)) |
| .addInnerClasses(InvokeSuperToEmulatedDefaultMethodTest.class) |
| .setMinApi(parameters.getApiLevel()) |
| .enableLibraryDesugaring(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| public interface StringMap extends Map<String, String> { |
| |
| @Override |
| default String getOrDefault(Object key, String defaultValue) { |
| // Simple forward that targets the desugared library. |
| return Map.super.getOrDefault(key + "oo", defaultValue); |
| } |
| } |
| |
| public interface StringMapIndirection extends StringMap { |
| |
| @Override |
| default String getOrDefault(Object key, String defaultValue) { |
| // Simple forward to a program defined default method. |
| return StringMap.super.getOrDefault("f", defaultValue); |
| } |
| } |
| |
| public static class StringHashMap implements StringMapIndirection { |
| HashMap<String, String> delegate = new HashMap<>(); |
| |
| @Override |
| public int size() { |
| return delegate.size(); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return delegate.isEmpty(); |
| } |
| |
| @Override |
| public boolean containsKey(Object key) { |
| return delegate.containsKey(key); |
| } |
| |
| @Override |
| public boolean containsValue(Object value) { |
| return delegate.containsValue(value); |
| } |
| |
| @Override |
| public String get(Object key) { |
| return delegate.get(key); |
| } |
| |
| @Override |
| public String put(String key, String value) { |
| return delegate.put(key, value); |
| } |
| |
| @Override |
| public String remove(Object key) { |
| return delegate.remove(key); |
| } |
| |
| @Override |
| public void putAll(Map<? extends String, ? extends String> m) { |
| delegate.putAll(m); |
| } |
| |
| @Override |
| public void clear() { |
| delegate.clear(); |
| } |
| |
| @Override |
| public Set<String> keySet() { |
| return delegate.keySet(); |
| } |
| |
| @Override |
| public Collection<String> values() { |
| return delegate.values(); |
| } |
| |
| @Override |
| public Set<Entry<String, String>> entrySet() { |
| return delegate.entrySet(); |
| } |
| } |
| |
| public static class TestClass { |
| |
| public static void main(String[] args) { |
| StringHashMap map = new StringHashMap(); |
| map.put("foo", "bar"); |
| System.out.println(map.getOrDefault("foo", "not found")); |
| System.out.println(map.getOrDefault("bar", "not found")); |
| } |
| } |
| } |