| // Copyright (c) 2022, 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.shaking; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.KeepConstantArguments; |
| import com.android.tools.r8.NeverClassInline; |
| 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 com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.FoundMethodSubject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class ForwardingConstructorShakingOnDexTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .addOptionsModification( |
| options -> options.testing.enableRedundantConstructorBridgeRemoval = true) |
| .enableConstantArgumentAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::inspect) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A", "A(String)", "B", "B(String)", "C", "C(String)"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| boolean canHaveNonReboundConstructorInvoke = |
| parameters.isDexRuntime() |
| && parameters.getApiLevel().isGreaterThanOrEqualTo(AndroidApiLevel.L); |
| |
| ClassSubject aClassSubject = inspector.clazz(A.class); |
| assertThat(aClassSubject, isPresent()); |
| assertEquals(2, aClassSubject.allMethods(FoundMethodSubject::isInstanceInitializer).size()); |
| |
| ClassSubject bClassSubject = inspector.clazz(B.class); |
| assertThat(bClassSubject, isPresent()); |
| assertEquals( |
| canHaveNonReboundConstructorInvoke ? 0 : 2, |
| bClassSubject.allMethods(FoundMethodSubject::isInstanceInitializer).size()); |
| |
| ClassSubject cClassSubject = inspector.clazz(C.class); |
| assertThat(cClassSubject, isPresent()); |
| assertEquals( |
| canHaveNonReboundConstructorInvoke ? 0 : 2, |
| cClassSubject.allMethods(FoundMethodSubject::isInstanceInitializer).size()); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| new A(); |
| new A("A(String)"); |
| new B(); |
| new B("B(String)"); |
| new C(); |
| new C("C(String)"); |
| } |
| } |
| |
| @NeverClassInline |
| @NoVerticalClassMerging |
| static class A { |
| |
| A() { |
| if (this instanceof C) { |
| System.out.println("C"); |
| } else if (this instanceof B) { |
| System.out.println("B"); |
| } else { |
| System.out.println("A"); |
| } |
| } |
| |
| A(String string) { |
| System.out.println(string); |
| } |
| } |
| |
| @NeverClassInline |
| @NoVerticalClassMerging |
| static class B extends A { |
| |
| // These constructors simply forward the arguments to the parent constructor. |
| // They can be removed when compiling for dex and the API is above Dalvik. |
| B() {} |
| |
| B(String string) { |
| super(string); |
| } |
| } |
| |
| @NeverClassInline |
| @NoVerticalClassMerging |
| static class C extends B { |
| |
| // Ditto. |
| C() {} |
| |
| @KeepConstantArguments |
| C(String string) { |
| super(string); |
| } |
| } |
| } |