| // Copyright (c) 2019, 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.unusedarguments; |
| |
| 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.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.utils.BooleanUtils; |
| import com.android.tools.r8.utils.StringUtils; |
| 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 UnusedArgumentRemovalWithOverridingTest extends TestBase { |
| |
| private final boolean minification; |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{1}, minification: {0}") |
| public static List<Object[]> params() { |
| return buildParameters(BooleanUtils.values(), getTestParameters().withAllRuntimes().build()); |
| } |
| |
| public UnusedArgumentRemovalWithOverridingTest(boolean minification, TestParameters parameters) { |
| this.minification = minification; |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| String expectedOutput = StringUtils.lines("Hello world!", "Hello world!"); |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(UnusedArgumentRemovalWithOverridingTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableNeverClassInliningAnnotations() |
| .enableInliningAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .minification(minification) |
| .setMinApi(parameters.getRuntime()) |
| .compile() |
| .inspect(this::verify) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(expectedOutput); |
| } |
| |
| private void verify(CodeInspector inspector) { |
| ClassSubject classSubject = inspector.clazz(B.class); |
| assertThat(classSubject, isPresent()); |
| |
| MethodSubject methodSubject = classSubject.uniqueMethodWithName("greeting"); |
| assertThat(methodSubject, isPresent()); |
| assertEquals("java.lang.String", methodSubject.getMethod().method.proto.parameters.toString()); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| System.out.println(new A().greeting("Hello world!")); |
| System.out.println(new B().greeting("Hello world!")); |
| } |
| } |
| |
| @NeverClassInline |
| @NoVerticalClassMerging |
| static class A { |
| |
| @NeverInline |
| public String greeting(String used) { |
| return used; |
| } |
| } |
| |
| @NeverClassInline |
| static class B extends A { |
| |
| @NeverInline |
| @Override |
| public String greeting(String unused) { |
| System.out.print("Hello "); |
| return "world!"; |
| } |
| } |
| } |