| // 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.cf; |
| |
| import static org.hamcrest.CoreMatchers.containsString; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assume.assumeTrue; |
| import static org.objectweb.asm.Opcodes.H_INVOKESTATIC; |
| |
| import com.android.tools.r8.CompilationFailedException; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.TestRuntime.CfVm; |
| import java.io.IOException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| import org.objectweb.asm.ConstantDynamic; |
| import org.objectweb.asm.Handle; |
| |
| @RunWith(Parameterized.class) |
| public class ConstantDynamicHolderTest extends TestBase { |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters() |
| .withCfRuntimesStartingFromIncluding(CfVm.JDK11) |
| .withDexRuntimes() |
| .withAllApiLevels() |
| .build(); |
| } |
| |
| final TestParameters parameters; |
| |
| public ConstantDynamicHolderTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testReference() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForJvm() |
| .addProgramClassFileData(getTransformedMain()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("null"); |
| } |
| |
| @Test(expected = CompilationFailedException.class) |
| public void testD8() throws Exception { |
| assumeTrue(parameters.isDexRuntime()); |
| testForD8() |
| .addProgramClassFileData(getTransformedMain()) |
| .setMinApi(parameters.getApiLevel()) |
| .compileWithExpectedDiagnostics( |
| diagnostics -> |
| diagnostics.assertErrorMessageThatMatches( |
| containsString("Unsupported dynamic constant"))); |
| } |
| |
| @Test(expected = CompilationFailedException.class) |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClassFileData(getTransformedMain()) |
| .setMinApi(parameters.getApiLevel()) |
| .addKeepMainRule(Main.class) |
| .compileWithExpectedDiagnostics( |
| diagnostics -> |
| diagnostics.assertErrorMessageThatMatches( |
| containsString("Unsupported dynamic constant"))); |
| } |
| |
| private byte[] getTransformedMain() throws IOException { |
| return transformer(Main.class) |
| .setMinVersion(CfVm.JDK11) |
| .transformLdcInsnInMethod( |
| "main", |
| (value, continuation) -> { |
| assertEquals("replaced by dynamic null constant", value); |
| continuation.visitLdcInsn(getDynamicConstant()); |
| }) |
| .transform(); |
| } |
| |
| private ConstantDynamic getDynamicConstant() { |
| return new ConstantDynamic( |
| "dynamicnull", |
| "Ljava/lang/String;", |
| new Handle( |
| H_INVOKESTATIC, |
| "java/lang/invoke/ConstantBootstraps", |
| "nullConstant", |
| "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/Class;)" |
| + "Ljava/lang/Object;", |
| false)); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| System.out.println("replaced by dynamic null constant"); |
| } |
| } |
| } |