Mercurial > hg > graal-compiler
view test/runtime/8003720/Asmator.java @ 12734:2caa21ef52bb
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 08 Nov 2013 18:34:57 +0100 |
parents | dad48145e775 |
children |
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/* * Copyright (c) 2012, 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. * */ import jdk.internal.org.objectweb.asm.*; class Asmator { static byte[] fixup(byte[] buf) throws java.io.IOException { ClassReader cr = new ClassReader(buf); ClassWriter cw = new ClassWriter(0); ClassVisitor cv = new ClassVisitor(Opcodes.ASM4, cw) { public MethodVisitor visitMethod( final int access, final String name, final String desc, final String signature, final String[] exceptions) { MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions); if (mv == null) return null; if (name.equals("callme")) { // make receiver go dead! mv.visitInsn(Opcodes.ACONST_NULL); mv.visitVarInsn(Opcodes.ASTORE, 0); } return mv; } }; cr.accept(cv, 0); return cw.toByteArray(); } }