| // 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.apimodel; |
| |
| import static com.android.tools.r8.apimodel.ApiModelingTestHelper.addTracedApiReferenceLevelCallBack; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.references.Reference; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import java.lang.reflect.Method; |
| 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 ApiModelBackportTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public ApiModelBackportTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| // For dex runtimes the `callBackport` is always min-api, because we either: |
| // - backport `Integer.toUnsignedString` thus the code is program code |
| // - call the implementation in the library where min-api >= 0. |
| // For CF we do not desugar the call and thus have to keep it at the api level O. |
| Method callBackport = ApiCaller.class.getDeclaredMethod("callBackport", int.class); |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(ApiCaller.class, ApiCallerCaller.class, Main.class) |
| .setMinApi(parameters) |
| .addKeepMainRule(Main.class) |
| .apply(ApiModelingTestHelper::enableApiCallerIdentification) |
| .apply( |
| addTracedApiReferenceLevelCallBack( |
| (method, apiLevel) -> { |
| if (Reference.methodFromMethod(callBackport).equals(method)) { |
| assertEquals( |
| parameters.isCfRuntime() ? AndroidApiLevel.O : parameters.getApiLevel(), |
| apiLevel); |
| } |
| })) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("0") |
| .inspect( |
| inspector -> { |
| if (parameters.isCfRuntime()) { |
| assertThat(inspector.clazz(ApiCaller.class), isPresent()); |
| assertThat(inspector.clazz(Main.class), isPresent()); |
| assertEquals(2, inspector.allClasses().size()); |
| } else { |
| assertThat(inspector.clazz(ApiCaller.class), not(isPresent())); |
| assertThat(inspector.clazz(Main.class), isPresent()); |
| assertEquals(1, inspector.allClasses().size()); |
| } |
| }); |
| } |
| |
| public static class ApiCaller { |
| |
| public static String callBackport(int length) { |
| return Integer.toUnsignedString(length); |
| } |
| } |
| |
| public static class ApiCallerCaller { |
| |
| public static String callCallBackport(int length) { |
| return ApiCaller.callBackport(length); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| System.out.println(ApiCallerCaller.callCallBackport(args.length)); |
| } |
| } |
| } |