| // 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.cf.stackmap; |
| |
| import static com.android.tools.r8.cf.stackmap.UninitializedInstanceOfTest.MainDump.dump; |
| import static org.hamcrest.CoreMatchers.containsString; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.CompilationFailedException; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestDiagnosticMessages; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.TestRunResult; |
| import com.android.tools.r8.ToolHelper.DexVm.Version; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| @RunWith(Parameterized.class) |
| public class UninitializedInstanceOfTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().withAllApiLevelsAlsoForCf().build(); |
| } |
| |
| @Test |
| public void testJvm() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForJvm() |
| .addProgramClassFileData(dump()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertFailureWithErrorThatThrows(VerifyError.class); |
| } |
| |
| @Test(expected = CompilationFailedException.class) |
| public void testD8Cf() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForD8(parameters.getBackend()) |
| .addProgramClassFileData(dump()) |
| .setMinApi(parameters.getApiLevel()) |
| .compileWithExpectedDiagnostics(this::inspect); |
| } |
| |
| @Test() |
| public void testD8Dex() throws Exception { |
| assumeTrue(parameters.isDexRuntime()); |
| boolean expectFailure = parameters.getDexRuntimeVersion().isNewerThanOrEqual(Version.V7_0_0); |
| testForD8(parameters.getBackend()) |
| .addProgramClassFileData(dump()) |
| .setMinApi(parameters.getApiLevel()) |
| .compileWithExpectedDiagnostics(this::inspect) |
| .run(parameters.getRuntime(), Main.class) |
| .applyIf( |
| expectFailure, |
| result -> result.assertFailureWithErrorThatThrows(VerifyError.class), |
| TestRunResult::assertSuccessWithOutputLines); |
| } |
| |
| private void inspect(TestDiagnosticMessages diagnostics) { |
| diagnostics.assertWarningMessageThatMatches( |
| containsString( |
| "Expected initialized java.lang.Object on stack, but was uninitialized" |
| + " java.lang.Object")); |
| if (parameters.isCfRuntime()) { |
| diagnostics.assertErrorMessageThatMatches( |
| containsString("Could not validate stack map frames")); |
| } |
| } |
| |
| public static class Main { |
| |
| // The dump is generated from the following code, where we just swap the instanceof with the |
| // initializer call. |
| public static void main(String[] args) { |
| boolean m = (new Object() instanceof Main); |
| } |
| } |
| |
| static class MainDump implements Opcodes { |
| |
| static byte[] dump() throws Exception { |
| |
| ClassWriter classWriter = new ClassWriter(0); |
| MethodVisitor methodVisitor; |
| |
| classWriter.visit( |
| V1_8, |
| ACC_PUBLIC | ACC_SUPER, |
| "com/android/tools/r8/cf/stackmap/UninitializedInstanceOfTest$Main", |
| null, |
| "java/lang/Object", |
| null); |
| |
| classWriter.visitInnerClass( |
| "com/android/tools/r8/cf/stackmap/UninitializedInstanceOfTest$Main", |
| "com/android/tools/r8/cf/stackmap/UninitializedInstanceOfTest", |
| "Main", |
| ACC_PUBLIC | ACC_STATIC); |
| |
| { |
| methodVisitor = |
| classWriter.visitMethod( |
| ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| methodVisitor.visitTypeInsn(NEW, "java/lang/Object"); |
| methodVisitor.visitInsn(DUP); |
| // INSTANCEOF and INVOKESPECIAL is swapped. |
| methodVisitor.visitTypeInsn( |
| INSTANCEOF, "com/android/tools/r8/cf/stackmap/UninitializedInstanceOfTest$Main"); |
| methodVisitor.visitVarInsn(ISTORE, 1); |
| methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(2, 2); |
| methodVisitor.visitEnd(); |
| } |
| classWriter.visitEnd(); |
| |
| return classWriter.toByteArray(); |
| } |
| } |
| } |