| // 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.shaking.assumenosideeffects; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.errors.Unreachable; |
| 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.Collection; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class AssumenosideeffectsWithoutReturnValueTest extends TestBase { |
| private static final Class<?> MAIN = TestClass.class; |
| |
| enum TestConfig { |
| RULE_WITH_RETURN_VALUE, |
| SEPARATE_RULES; |
| |
| public String getKeepRules() { |
| switch (this) { |
| case RULE_WITH_RETURN_VALUE: |
| return StringUtils.lines( |
| "-assumenosideeffects class ** {", |
| " *** debug(...) return false;", |
| "}" |
| ); |
| case SEPARATE_RULES: |
| return StringUtils.lines( |
| "-assumenosideeffects class ** {", |
| " *** debug(...);", |
| "}", |
| "-assumevalues class ** {", |
| " *** debug(...) return false;", |
| "}" |
| ); |
| default: |
| throw new Unreachable(); |
| } |
| } |
| } |
| |
| private final TestParameters parameters; |
| private final TestConfig config; |
| |
| @Parameterized.Parameters(name = "{0} {1}") |
| public static Collection<Object[]> data() { |
| return buildParameters(getTestParameters().withAllRuntimes().build(), TestConfig.values()); |
| } |
| |
| public AssumenosideeffectsWithoutReturnValueTest( |
| TestParameters parameters, TestConfig config) { |
| this.parameters = parameters; |
| this.config = config; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(AssumenosideeffectsWithoutReturnValueTest.class) |
| .enableInliningAnnotations() |
| .addKeepMainRule(MAIN) |
| .addKeepRules(config.getKeepRules()) |
| .noMinification() |
| .setMinApi(parameters.getRuntime()) |
| .compile() |
| .inspect(this::verifyDebugMethodIsRemoved) |
| .run(parameters.getRuntime(), MAIN) |
| .assertSuccessWithOutputLines("The end"); |
| } |
| |
| private void verifyDebugMethodIsRemoved(CodeInspector inspector) { |
| ClassSubject main = inspector.clazz(MAIN); |
| assertThat(main, isPresent()); |
| MethodSubject debug = main.uniqueMethodWithName("debug"); |
| assertThat(debug, not(isPresent())); |
| } |
| |
| static class TestClass { |
| @NeverInline |
| boolean debug() { |
| return System.currentTimeMillis() > 0; |
| } |
| |
| public static void main(String... args) { |
| TestClass instance = new TestClass(); |
| if (instance.debug()) { |
| System.out.println("message"); |
| } |
| System.out.println("The end"); |
| } |
| } |
| } |