| // Copyright (c) 2021, 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.graph.genericsignature; |
| |
| 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.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.graph.genericsignature.GenericSignatureKeepAttributesTest.Outer.Middle; |
| import com.android.tools.r8.graph.genericsignature.GenericSignatureKeepAttributesTest.Outer.Middle.Inner; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class GenericSignatureKeepAttributesTest extends TestBase { |
| |
| private final TestParameters parameters; |
| private final boolean isCompat; |
| |
| private final String[] EXPECTED_JVM = |
| new String[] { |
| "Outer.Middle.Inner::test", |
| "public class com.android.tools.r8.graph.genericsignature" |
| + ".GenericSignatureKeepAttributesTest$Outer$Middle$Inner<I>" |
| }; |
| |
| private final String[] EXPECTED_DEX = |
| new String[] { |
| "Outer.Middle.Inner::test", |
| "class com.android.tools.r8.graph.genericsignature" |
| + ".GenericSignatureKeepAttributesTest$Outer$Middle$Inner" |
| }; |
| |
| @Parameters(name = "{0}, isCompat: {1}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withAllRuntimesAndApiLevels().build(), BooleanUtils.values()); |
| } |
| |
| public GenericSignatureKeepAttributesTest(TestParameters parameters, boolean isCompat) { |
| this.parameters = parameters; |
| this.isCompat = isCompat; |
| } |
| |
| @Test |
| public void testRuntime() throws Exception { |
| testForRuntime(parameters) |
| .addProgramClasses(Supplier.class, Predicate.class, Outer.class, Middle.class, Main.class) |
| .addProgramClassFileData(getClassFileData()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines(parameters.isCfRuntime() ? EXPECTED_JVM : EXPECTED_DEX); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| (isCompat ? testForR8Compat(parameters.getBackend()) : testForR8(parameters.getBackend())) |
| .addProgramClasses(Supplier.class, Predicate.class, Outer.class, Middle.class, Main.class) |
| .addProgramClassFileData(getClassFileData()) |
| .setMinApi(parameters.getApiLevel()) |
| .addKeepAttributeSignature() |
| .addKeepAttributeInnerClassesAndEnclosingMethod() |
| .addKeepMainRule(Main.class) |
| .addKeepClassAndMembersRules(Outer.Middle.Inner.class, Supplier.class, Predicate.class) |
| .enableInliningAnnotations() |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines(parameters.isCfRuntime() ? EXPECTED_JVM : EXPECTED_DEX) |
| .inspect(this::inspectSignatures); |
| } |
| |
| private byte[] getClassFileData() throws Exception { |
| return transformer(Inner.class) |
| .transformMethodInsnInMethod( |
| "test", |
| ((opcode, owner, name, descriptor, isInterface, continuation) -> { |
| if (parameters.isCfRuntime() && name.equals("toString")) { |
| name = "toGenericString"; |
| } |
| continuation.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| })) |
| .transform(); |
| } |
| |
| private void inspectSignatures(CodeInspector inspector) { |
| ClassSubject outerClass = inspector.clazz(Outer.class); |
| assertThat(outerClass, isPresent()); |
| assertEquals( |
| isCompat ? "<O::L" + binaryName(Supplier.class) + "<*>;>Ljava/lang/Object;" : null, |
| outerClass.getFinalSignatureAttribute()); |
| |
| ClassSubject middleClass = inspector.clazz(Middle.class); |
| assertThat(middleClass, isPresent()); |
| assertEquals( |
| isCompat ? "<M::L" + binaryName(Predicate.class) + "<TO;>;>Ljava/lang/Object;" : null, |
| middleClass.getFinalSignatureAttribute()); |
| |
| ClassSubject innerClass = inspector.clazz(Inner.class); |
| assertThat(innerClass, isPresent()); |
| MethodSubject testMethod = innerClass.uniqueMethodWithName("test"); |
| assertThat(testMethod, isPresent()); |
| if (isCompat) { |
| assertEquals("(TO;TM;)TI;", testMethod.getFinalSignatureAttribute()); |
| } else { |
| assertEquals( |
| "(L" |
| + binaryName(Supplier.class) |
| + "<*>;L" |
| + binaryName(Predicate.class) |
| + "<Ljava/lang/Object;>;)TI;", |
| testMethod.getFinalSignatureAttribute()); |
| } |
| } |
| |
| public interface Supplier<T> {} |
| |
| public interface Predicate<T> {} |
| |
| public static class Outer<O extends Supplier<?>> { |
| |
| public class Middle<M extends Predicate<O>> { |
| |
| public class Inner<I> { |
| |
| public I test(O o, M m) { |
| System.out.println("Outer.Middle.Inner::test"); |
| System.out.println(this.getClass().toString()); // .toGenericString() for JVMs |
| return null; |
| } |
| } |
| |
| private Outer<O>.Middle<M>.Inner<Object> createInner() { |
| return new Inner<>(); |
| } |
| } |
| |
| private Outer<O>.Middle<?> createMiddle() { |
| return new Outer<O>.Middle<>(); |
| } |
| |
| @NeverInline |
| public static Outer<?>.Middle<?>.Inner<Object> create() { |
| return new Outer<>().createMiddle().createInner(); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| Outer.create().test(null, null); |
| } |
| } |
| } |