| /* |
| * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package vm.mlvm.cp.share; |
| |
| import jdk.internal.org.objectweb.asm.ClassWriter; |
| import jdk.internal.org.objectweb.asm.ClassWriterExt; |
| import jdk.internal.org.objectweb.asm.MethodVisitor; |
| import jdk.internal.org.objectweb.asm.Opcodes; |
| import jdk.internal.org.objectweb.asm.Handle; |
| |
| import vm.mlvm.share.ClassfileGenerator; |
| import vm.mlvm.share.Env; |
| |
| public class GenCPFullOfMH extends GenFullCP { |
| |
| public static void main(String[] args) { |
| ClassfileGenerator.main(args); |
| } |
| |
| @Override |
| protected void generateCommonData(ClassWriterExt cw) { |
| cw.setCacheMHandles(false); |
| |
| cw.visitField(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, |
| STATIC_FIELD_NAME, |
| STATIC_FIELD_SIGNATURE, null, false); |
| |
| cw.visitField(Opcodes.ACC_PUBLIC, |
| INSTANCE_FIELD_NAME, |
| INSTANCE_FIELD_SIGNATURE, null, false); |
| |
| createInitMethod(cw); |
| createTargetMethod(cw); |
| |
| MethodVisitor mv = cw.visitMethod( |
| Opcodes.ACC_PUBLIC, |
| INSTANCE_TARGET_METHOD_NAME, |
| INSTANCE_TARGET_METHOD_SIGNATURE, |
| null, |
| new String[0]); |
| finishMethodCode(mv); |
| } |
| |
| @Override |
| protected void generateCPEntryData(ClassWriter cw, MethodVisitor mw) { |
| HandleType[] types = HandleType.values(); |
| HandleType type = types[Env.getRNG().nextInt(types.length)]; |
| |
| switch (type) { |
| case PUTFIELD: |
| case PUTSTATIC: |
| mw.visitInsn(Opcodes.ICONST_0); |
| break; |
| case INVOKESPECIAL: |
| case INVOKEVIRTUAL: |
| case INVOKEINTERFACE: |
| mw.visitInsn(Opcodes.ACONST_NULL); |
| break; |
| } |
| |
| Handle handle; |
| switch (type) { |
| case GETFIELD: |
| case PUTFIELD: |
| handle = new Handle(type.asmTag, |
| fullClassName, |
| INSTANCE_FIELD_NAME, |
| INSTANCE_FIELD_SIGNATURE); |
| break; |
| case GETSTATIC: |
| case PUTSTATIC: |
| handle = new Handle(type.asmTag, |
| fullClassName, |
| STATIC_FIELD_NAME, |
| STATIC_FIELD_SIGNATURE); |
| break; |
| case NEWINVOKESPECIAL: |
| handle = new Handle(type.asmTag, |
| fullClassName, |
| INIT_METHOD_NAME, |
| INIT_METHOD_SIGNATURE); |
| break; |
| case INVOKESTATIC: |
| handle = new Handle(type.asmTag, |
| fullClassName, |
| TARGET_METHOD_NAME, |
| TARGET_METHOD_SIGNATURE); |
| break; |
| case INVOKEINTERFACE: |
| handle = new Handle(type.asmTag, |
| getDummyInterfaceClassName(), |
| INSTANCE_TARGET_METHOD_NAME, |
| INSTANCE_TARGET_METHOD_SIGNATURE); |
| break; |
| case INVOKESPECIAL: |
| case INVOKEVIRTUAL: |
| handle = new Handle(type.asmTag, |
| fullClassName, |
| INSTANCE_TARGET_METHOD_NAME, |
| INSTANCE_TARGET_METHOD_SIGNATURE); |
| break; |
| default: |
| throw new Error("Unexpected handle type " + type); |
| } |
| mw.visitLdcInsn(handle); |
| |
| switch (type) { |
| case GETFIELD: |
| case GETSTATIC: |
| mw.visitInsn(Opcodes.POP); |
| break; |
| } |
| } |
| } |