| // Copyright (c) 2018, 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.ir.optimize.checkcast; |
| |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.Label; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| /* Generated by running tools/asmifier.py on the following code snippet: |
| |
| public class Test { |
| public static void main(String[] args) { |
| try { |
| System.out.println((NonAccessible) null); |
| } catch (IllegalAccessError e) { |
| System.out.println("Expect to catch IAE during check-cast of null"); |
| } |
| } |
| } |
| |
| where NonAccessible will be added as a package-private class later. |
| */ |
| class IllegalAccessErrorTestDump implements Opcodes { |
| |
| final static String MESSAGE = "Expect to catch IAE during check-cast of null"; |
| |
| public static byte[] dump () { |
| |
| ClassWriter classWriter = new ClassWriter(0); |
| MethodVisitor methodVisitor; |
| |
| classWriter.visit(V1_8, ACC_PUBLIC | ACC_SUPER, "Test", null, "java/lang/Object", null); |
| |
| classWriter.visitSource("Test.java", null); |
| |
| { |
| methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitLineNumber(1, label0); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(1, 1); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = classWriter.visitMethod( |
| ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| Label label1 = new Label(); |
| Label label2 = new Label(); |
| methodVisitor.visitTryCatchBlock(label0, label1, label2, "java/lang/IllegalAccessError"); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitLineNumber(4, label0); |
| methodVisitor.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| methodVisitor.visitInsn(ACONST_NULL); |
| // Manually tweak to point to package-private one. |
| methodVisitor.visitTypeInsn( |
| CHECKCAST, "com/android/tools/r8/ir/optimize/checkcast/NonAccessible"); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V", false); |
| methodVisitor.visitLabel(label1); |
| methodVisitor.visitLineNumber(7, label1); |
| Label label3 = new Label(); |
| methodVisitor.visitJumpInsn(GOTO, label3); |
| methodVisitor.visitLabel(label2); |
| methodVisitor.visitLineNumber(5, label2); |
| methodVisitor.visitFrame( |
| Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/IllegalAccessError"}); |
| methodVisitor.visitVarInsn(ASTORE, 1); |
| Label label4 = new Label(); |
| methodVisitor.visitLabel(label4); |
| methodVisitor.visitLineNumber(6, label4); |
| methodVisitor.visitFieldInsn( |
| GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| methodVisitor.visitLdcInsn(MESSAGE); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
| methodVisitor.visitLabel(label3); |
| methodVisitor.visitLineNumber(8, label3); |
| methodVisitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(2, 2); |
| methodVisitor.visitEnd(); |
| } |
| classWriter.visitEnd(); |
| |
| return classWriter.toByteArray(); |
| } |
| } |