| // 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.classmerging.horizontal; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverPropagateValue; |
| import com.android.tools.r8.NoHorizontalClassMerging; |
| import com.android.tools.r8.NoUnusedInterfaceRemoval; |
| import com.android.tools.r8.NoVerticalClassMerging; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.InstructionSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import org.junit.Test; |
| |
| public class MergingWithSafeCheckCastTest extends HorizontalClassMergingTestBase { |
| |
| public MergingWithSafeCheckCastTest(TestParameters parameters) { |
| super(parameters); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .enableMemberValuePropagationAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .enableNoHorizontalClassMergingAnnotations() |
| .enableNoUnusedInterfaceRemovalAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .addHorizontallyMergedClassesInspector( |
| inspector -> |
| inspector |
| .assertIsCompleteMergeGroup(A.class, B.class) |
| .assertIsCompleteMergeGroup(I.class, J.class) |
| .assertNoOtherClassesMerged()) |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject aClassSubject = inspector.clazz(A.class); |
| assertThat(aClassSubject, isPresent()); |
| |
| // Check that the field f has been changed to have type java.lang.Object. |
| assertEquals(1, aClassSubject.allFields().size()); |
| assertEquals( |
| Object.class.getTypeName(), |
| aClassSubject.allFields().get(0).getField().getType().getTypeName()); |
| |
| // Check that casts have been inserted into main(). |
| MethodSubject mainMethodSubject = inspector.clazz(Main.class).mainMethod(); |
| assertTrue( |
| mainMethodSubject.streamInstructions().anyMatch(InstructionSubject::isCheckCast)); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("I", "J"); |
| } |
| |
| public static class Main { |
| public static void main(String[] args) { |
| new A(new IImpl()).f.printI(); |
| new B(new JImpl()).f.printJ(); |
| } |
| } |
| |
| @NeverClassInline |
| public static class A { |
| |
| @NeverPropagateValue I f; |
| |
| A(I f) { |
| this.f = f; |
| } |
| } |
| |
| @NeverClassInline |
| public static class B { |
| |
| @NeverPropagateValue J f; |
| |
| B(J f) { |
| this.f = f; |
| } |
| } |
| |
| @NoUnusedInterfaceRemoval |
| @NoVerticalClassMerging |
| interface I { |
| void printI(); |
| } |
| |
| @NoUnusedInterfaceRemoval |
| @NoVerticalClassMerging |
| interface J { |
| void printJ(); |
| } |
| |
| @NeverClassInline |
| @NoHorizontalClassMerging |
| static class IImpl implements I { |
| @NeverInline |
| public void printI() { |
| System.out.println("I"); |
| } |
| } |
| |
| @NeverClassInline |
| @NoHorizontalClassMerging |
| static class JImpl implements J { |
| @NeverInline |
| public void printJ() { |
| System.out.println("J"); |
| } |
| } |
| } |