| // 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.desugar.desugaredlibrary.conversiontests; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.LibraryDesugaringTestConfiguration; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.desugar.desugaredlibrary.DesugaredLibraryTestBase; |
| import com.android.tools.r8.synthesis.SyntheticItemsTestUtils; |
| import com.android.tools.r8.testing.AndroidBuildVersion; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.FoundClassSubject; |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.util.Arrays; |
| import java.util.stream.Stream; |
| 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 WrapperPlacementTest extends DesugaredLibraryTestBase { |
| |
| private static final String EXPECTED = StringUtils.lines("[1, 2, 3]", "[2, 3, 4]"); |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| private final TestParameters parameters; |
| |
| public WrapperPlacementTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testReference() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForJvm() |
| .addAndroidBuildVersion() |
| .addProgramClassesAndInnerClasses(MyArrays1.class) |
| .addProgramClassesAndInnerClasses(MyArrays2.class) |
| .addProgramClasses(TestClass.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testNoWrappers() throws Exception { |
| assumeTrue(parameters.isDexRuntime()); |
| // No wrappers are made during program compilation. |
| Path path1 = compileWithCoreLibraryDesugaring(MyArrays1.class); |
| Path path2 = compileWithCoreLibraryDesugaring(MyArrays2.class); |
| testForD8() |
| .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.P)) |
| .addProgramClasses(TestClass.class) |
| .addAndroidBuildVersion() |
| .enableCoreLibraryDesugaring( |
| LibraryDesugaringTestConfiguration.builder() |
| .setMinApi(parameters.getApiLevel()) |
| .dontAddRunClasspath() |
| .build()) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::assertNoWrappers) |
| .apply( |
| b -> { |
| if (!hasNativeIntUnaryOperator()) { |
| Path coreLib = buildDesugaredLibrary(parameters.getApiLevel()); |
| assertCoreLibContainsWrappers(coreLib); |
| b.addRunClasspathFiles(coreLib); |
| } |
| }) |
| // The previous compilations are appended to the classpath (no merge). |
| .addRunClasspathFiles(path1, path2) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| private Path compileWithCoreLibraryDesugaring(Class<?> clazz) throws Exception { |
| return testForD8() |
| .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.P)) |
| .addProgramClassesAndInnerClasses(clazz) |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring( |
| LibraryDesugaringTestConfiguration.forApiLevel(parameters.getApiLevel())) |
| .compile() |
| .inspect(this::assertNoWrappers) |
| .writeToZip(); |
| } |
| |
| private boolean hasNativeIntUnaryOperator() { |
| return parameters.getApiLevel().isGreaterThanOrEqualTo(AndroidApiLevel.N); |
| } |
| |
| private void assertCoreLibContainsWrappers(Path coreLib) throws IOException { |
| CodeInspector inspector = new CodeInspector(coreLib); |
| Stream<FoundClassSubject> wrappers = getWrappers(inspector); |
| assertNotEquals(0, wrappers.count()); |
| } |
| |
| private void assertNoWrappers(CodeInspector inspector) { |
| Stream<FoundClassSubject> wrappers = getWrappers(inspector); |
| assertEquals(0, wrappers.count()); |
| } |
| |
| private Stream<FoundClassSubject> getWrappers(CodeInspector inspector) { |
| return inspector.allClasses().stream() |
| .filter(c -> SyntheticItemsTestUtils.isWrapper(c.getOriginalReference())); |
| } |
| |
| static class MyArrays1 { |
| |
| interface IntGenerator { |
| int generate(int index); |
| } |
| |
| public static void setAll(int[] ints, IntGenerator generator) { |
| if (AndroidBuildVersion.VERSION >= 24) { |
| java.util.Arrays.setAll(ints, generator::generate); |
| } else { |
| for (int i = 0; i < ints.length; i++) { |
| ints[i] = generator.generate(i); |
| } |
| } |
| } |
| } |
| |
| static class MyArrays2 { |
| |
| interface IntGenerator { |
| int generate(int index); |
| } |
| |
| public static void setAll(int[] ints, IntGenerator generator) { |
| if (AndroidBuildVersion.VERSION >= 24) { |
| java.util.Arrays.setAll(ints, generator::generate); |
| } else { |
| for (int i = 0; i < ints.length; i++) { |
| ints[i] = generator.generate(i); |
| } |
| } |
| } |
| } |
| |
| public static class TestClass { |
| |
| public static void main(String[] args) { |
| int[] ints = new int[3]; |
| MyArrays1.setAll(ints, x -> x + 1); |
| System.out.println(Arrays.toString(ints)); |
| MyArrays2.setAll(ints, x -> x + 2); |
| System.out.println(Arrays.toString(ints)); |
| } |
| } |
| } |