| // 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.bridgeremoval.hoisting; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NoVerticalClassMerging; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class InterfaceBridgeHoistingTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public InterfaceBridgeHoistingTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(TestClass.class, A.class, I.class) |
| .addProgramClassFileData( |
| transformer(B.class) |
| .setBridge(B.class.getDeclaredMethod("bridge", Object.class)) |
| .transform()) |
| .addKeepMainRule(TestClass.class) |
| .enableInliningAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("Hello world!"); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| System.out.println(new B().bridge("Hello world!")); |
| } |
| } |
| |
| @NoVerticalClassMerging |
| static class A {} |
| |
| @NoVerticalClassMerging |
| interface I { |
| |
| @NeverInline |
| default Object m(String arg) { |
| return System.currentTimeMillis() >= 0 ? arg : null; |
| } |
| } |
| |
| @NeverClassInline |
| static class B extends A implements I { |
| |
| // Hoisting this bridge to class A would lead to a NoSuchMethodError since the targeted method |
| // is defined on the interface I. |
| @NeverInline |
| public /*bridge*/ String bridge(Object o) { |
| return (String) m((String) o); |
| } |
| } |
| } |