| // Copyright (c) 2021, 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.desugaring.interfacemethods; |
| |
| import static com.android.tools.r8.TestRuntime.getCheckedInJdk; |
| import static com.android.tools.r8.TestRuntime.getCheckedInJdk11; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.ToolHelper.DexVm.Version; |
| import com.android.tools.r8.desugaring.interfacemethods.methodparameters.I; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.SupplierUtils; |
| import java.nio.file.Path; |
| import java.util.function.Supplier; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class MethodParametersTest extends TestBase { |
| |
| private final TestParameters parameters; |
| private final Supplier<Path> compiledWithParameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| // java.lang.reflect.Method.getParameters() supported from Android 8.1. |
| return getTestParameters() |
| .withDexRuntimesStartingFromIncluding(Version.V8_1_0) |
| .withCfRuntimes() |
| .withAllApiLevelsAlsoForCf() |
| .build(); |
| } |
| |
| public MethodParametersTest(TestParameters parameters) { |
| this.parameters = parameters; |
| compiledWithParameters = |
| SupplierUtils.memoize( |
| () -> |
| javac( |
| parameters.isCfRuntime() |
| ? getCheckedInJdk(parameters.getRuntime().asCf().getVm()) |
| : getCheckedInJdk11()) |
| .addSourceFiles(ToolHelper.getSourceFileForTestClass(I.class)) |
| .addOptions("-parameters") |
| .compile()); |
| } |
| |
| private final String EXPECTED = |
| StringUtils.lines( |
| "0", "1", "a: 1", "2", "a: 1", "b: 2", "0", "1", "a: 1", "2", "a: 1", "b: 2"); |
| private final String EXPECTED_DESUGARED = |
| StringUtils.lines( |
| "1", |
| "2", |
| "_this: 0", |
| "a: 1", |
| "3", |
| "_this: 0", |
| "a: 1", |
| "b: 2", |
| "0", |
| "1", |
| "a: 1", |
| "2", |
| "a: 1", |
| "b: 2"); |
| |
| @Test |
| public void testJvm() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForJvm() |
| .addProgramFiles(compiledWithParameters.get()) |
| .addInnerClasses(getClass()) |
| .run(parameters.getRuntime(), TestRunner.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testDesugar() throws Exception { |
| // JDK8 is not present on Windows. |
| assumeTrue( |
| parameters.isDexRuntime() |
| || getCheckedInJdk(parameters.getRuntime().asCf().getVm()) != null); |
| Path interfaceDesugared = |
| testForD8(Backend.CF) |
| .addProgramFiles(compiledWithParameters.get()) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .writeToZip(); |
| |
| Path interfaceDesugaredTwice = |
| testForD8(Backend.CF) |
| .addProgramFiles(interfaceDesugared) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .writeToZip(); |
| |
| Path programDesugared = |
| testForD8(Backend.CF) |
| .addClasspathClasses(I.class) |
| .addInnerClasses(getClass()) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .writeToZip(); |
| |
| testForD8(parameters.getBackend()) |
| .addProgramFiles(interfaceDesugaredTwice) |
| .addProgramFiles(programDesugared) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), TestRunner.class) |
| .applyIf( |
| parameters.canUseDefaultAndStaticInterfaceMethodsWhenDesugaring(), |
| r -> r.assertSuccessWithOutput(EXPECTED), |
| r -> r.assertSuccessWithOutput(EXPECTED_DESUGARED)); |
| } |
| |
| static class A implements I {} |
| |
| static class TestRunner { |
| |
| public static void main(String[] args) { |
| new A().zeroArgsDefault(); |
| new A().oneArgDefault(0); |
| new A().twoArgDefault(0, 0); |
| I.zeroArgStatic(); |
| I.oneArgStatic(0); |
| I.twoArgsStatic(0, 0); |
| } |
| } |
| } |