| // 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; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper.DexVm.Version; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.util.function.Function; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class FunctionTest extends TestBase { |
| |
| private static final String expectedOutput = StringUtils.lines("Hello, world", "Hello, world"); |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withDexRuntimesStartingFromIncluding(Version.V8_1_0).build(); |
| } |
| |
| public FunctionTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testD8() throws Exception { |
| testForD8() |
| .addInnerClasses(FunctionTest.class) |
| .run(parameters.getRuntime(), FunctionTest.TestClass.class) |
| .assertSuccessWithOutput(expectedOutput); |
| } |
| |
| @Test |
| public void testR8Working() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addKeepMainRule(TestClass.class) |
| .noTreeShaking() |
| .addDontObfuscate() |
| .enableInliningAnnotations() |
| .addInnerClasses(FunctionTest.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(expectedOutput); |
| } |
| |
| @Test |
| public void testR8WithTreeshaking() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addKeepMainRule(TestClass.class) |
| .enableInliningAnnotations() |
| .addInnerClasses(FunctionTest.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(expectedOutput); |
| } |
| |
| static class TestClass { |
| |
| @NeverInline |
| private static String applyFunction(Function<String, String> f) { |
| return f.apply("Hello, world"); |
| } |
| |
| public static void main(String[] args) { |
| System.out.println(applyFunction(s -> s + System.lineSeparator() + s)); |
| } |
| } |
| } |