| // 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; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.FieldVisitor; |
| import org.objectweb.asm.Label; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| import org.objectweb.asm.Type; |
| |
| /** This is a reproduction of b/183285081 */ |
| @RunWith(Parameterized.class) |
| public class StackMapForAlwaysThrowingInitializerTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withCfRuntimes().withAllApiLevelsAlsoForCf().build(); |
| } |
| |
| public StackMapForAlwaysThrowingInitializerTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testRuntime() throws Exception { |
| testForRuntime(parameters) |
| .addProgramClassFileData(StackMapForThrowingInitializerTest$MainDump.dump()) |
| .run(parameters.getRuntime(), StackMapForThrowingInitializerTest.Main.class, "") |
| .assertFailureWithErrorThatThrows(IllegalArgumentException.class); |
| } |
| |
| /** |
| * The dump below checks what happens when we clobber the uninitialized this pointer with straight |
| * line code: |
| * |
| * <pre> |
| * public Main(Object obj, String str) { |
| * this = str <-- clobber the uninitialized this pointer |
| * throw new IllegalArgumentException(); |
| * } |
| * </pre> |
| */ |
| public static class StackMapForThrowingInitializerTest$MainDump implements Opcodes { |
| |
| public static byte[] dump() { |
| |
| ClassWriter classWriter = new ClassWriter(0); |
| FieldVisitor fieldVisitor; |
| MethodVisitor methodVisitor; |
| |
| classWriter.visit( |
| V1_8, |
| ACC_PUBLIC, |
| "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main", |
| null, |
| "java/lang/Object", |
| null); |
| |
| { |
| fieldVisitor = |
| classWriter.visitField( |
| ACC_PRIVATE | ACC_FINAL, "str", "Ljava/lang/String;", null, null); |
| fieldVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = |
| classWriter.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitFieldInsn( |
| PUTFIELD, |
| "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main", |
| "str", |
| "Ljava/lang/String;"); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(2, 2); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = |
| classWriter.visitMethod( |
| ACC_PUBLIC, "<init>", "(Ljava/lang/Object;Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitVarInsn(ASTORE, 0); |
| methodVisitor.visitTypeInsn(NEW, "java/lang/IllegalArgumentException"); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "()V", false); |
| methodVisitor.visitInsn(ATHROW); |
| methodVisitor.visitMaxs(2, 3); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = |
| classWriter.visitMethod( |
| ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| methodVisitor.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitInsn(ARRAYLENGTH); |
| Label label0 = new Label(); |
| methodVisitor.visitJumpInsn(IFNE, label0); |
| methodVisitor.visitTypeInsn( |
| NEW, "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main"); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitInsn(ACONST_NULL); |
| methodVisitor.visitLdcInsn("foo"); |
| methodVisitor.visitMethodInsn( |
| INVOKESPECIAL, |
| "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main", |
| "<init>", |
| "(Ljava/lang/Object;Ljava/lang/String;)V", |
| false); |
| Label label1 = new Label(); |
| methodVisitor.visitJumpInsn(GOTO, label1); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/io/PrintStream"}); |
| methodVisitor.visitTypeInsn( |
| NEW, "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main"); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitLdcInsn( |
| Type.getType("Lcom/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main;")); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitInsn(ICONST_0); |
| methodVisitor.visitInsn(AALOAD); |
| methodVisitor.visitMethodInsn( |
| INVOKESPECIAL, |
| "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main", |
| "<init>", |
| "(Ljava/lang/Object;Ljava/lang/String;)V", |
| false); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, |
| "com/android/tools/r8/cf/StackMapForThrowingInitializerTest$Main", |
| "toString", |
| "()Ljava/lang/String;", |
| false); |
| methodVisitor.visitLabel(label1); |
| methodVisitor.visitFrame( |
| Opcodes.F_FULL, |
| 1, |
| new Object[] {"[Ljava/lang/String;"}, |
| 2, |
| new Object[] {"java/io/PrintStream", "java/lang/Object"}); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V", false); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(6, 1); |
| methodVisitor.visitEnd(); |
| } |
| classWriter.visitEnd(); |
| |
| return classWriter.toByteArray(); |
| } |
| } |
| } |