| // Copyright (c) 2018, 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.ir.optimize.classinliner; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.junit.Assert.assertThat; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverMerge; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| /** Regression test for b/120182628. */ |
| @RunWith(Parameterized.class) |
| public class BuilderWithInheritanceTest extends TestBase { |
| |
| private final Backend backend; |
| |
| @Parameters(name = "Backend: {0}") |
| public static Backend[] data() { |
| return ToolHelper.getBackends(); |
| } |
| |
| public BuilderWithInheritanceTest(Backend backend) { |
| this.backend = backend; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| CodeInspector inspector = |
| testForR8(backend) |
| .addInnerClasses(BuilderWithInheritanceTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableInliningAnnotations() |
| .enableMergeAnnotations() |
| .run(TestClass.class) |
| .assertSuccessWithOutput("42") |
| .inspector(); |
| assertThat(inspector.clazz(Builder.class), isPresent()); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| A a = new Builder(42).build(); |
| System.out.print(a.get()); |
| } |
| } |
| |
| static class A { |
| |
| private final int f; |
| |
| public A(int f) { |
| this.f = f; |
| } |
| |
| public int get() { |
| return f; |
| } |
| } |
| |
| @NeverMerge |
| static class BuilderBase { |
| |
| protected int f; |
| |
| public BuilderBase(int f) { |
| this.f = f; |
| } |
| |
| @NeverInline |
| public static int get(BuilderBase obj) { |
| return obj.f; |
| } |
| } |
| |
| static class Builder extends BuilderBase { |
| |
| public Builder(int f) { |
| super(f); |
| } |
| |
| public A build() { |
| // After force inlining of get() there will be a field-read "this.f", which is not allowed by |
| // the class inliner, because the class inliner only handles reads from fields that are |
| // declared on Builder. |
| return new A(get(this)); |
| } |
| } |
| } |