/*
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 * 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
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/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file:
 *
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2011 INRIA, France Telecom
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
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package jdk.internal.org.objectweb.asm.commons;

import jdk.internal.org.objectweb.asm.AnnotationVisitor;
import jdk.internal.org.objectweb.asm.Handle;
import jdk.internal.org.objectweb.asm.Label;
import jdk.internal.org.objectweb.asm.MethodVisitor;
import jdk.internal.org.objectweb.asm.Opcodes;
import jdk.internal.org.objectweb.asm.TypePath;

A LocalVariablesSorter for type mapping.
Author:Eugene Kuleshov
/** * A {@link LocalVariablesSorter} for type mapping. * * @author Eugene Kuleshov */
public class MethodRemapper extends MethodVisitor { protected final Remapper remapper; public MethodRemapper(final MethodVisitor mv, final Remapper remapper) { this(Opcodes.ASM6, mv, remapper); } protected MethodRemapper(final int api, final MethodVisitor mv, final Remapper remapper) { super(api, mv); this.remapper = remapper; } @Override public AnnotationVisitor visitAnnotationDefault() { AnnotationVisitor av = super.visitAnnotationDefault(); return av == null ? av : new AnnotationRemapper(av, remapper); } @Override public AnnotationVisitor visitAnnotation(String desc, boolean visible) { AnnotationVisitor av = super.visitAnnotation(remapper.mapDesc(desc), visible); return av == null ? av : new AnnotationRemapper(av, remapper); } @Override public AnnotationVisitor visitTypeAnnotation(int typeRef, TypePath typePath, String desc, boolean visible) { AnnotationVisitor av = super.visitTypeAnnotation(typeRef, typePath, remapper.mapDesc(desc), visible); return av == null ? av : new AnnotationRemapper(av, remapper); } @Override public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible) { AnnotationVisitor av = super.visitParameterAnnotation(parameter, remapper.mapDesc(desc), visible); return av == null ? av : new AnnotationRemapper(av, remapper); } @Override public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) { super.visitFrame(type, nLocal, remapEntries(nLocal, local), nStack, remapEntries(nStack, stack)); } private Object[] remapEntries(int n, Object[] entries) { if (entries != null) { for (int i = 0; i < n; i++) { if (entries[i] instanceof String) { Object[] newEntries = new Object[n]; if (i > 0) { System.arraycopy(entries, 0, newEntries, 0, i); } do { Object t = entries[i]; newEntries[i++] = t instanceof String ? remapper .mapType((String) t) : t; } while (i < n); return newEntries; } } } return entries; } @Override public void visitFieldInsn(int opcode, String owner, String name, String desc) { super.visitFieldInsn(opcode, remapper.mapType(owner), remapper.mapFieldName(owner, name, desc), remapper.mapDesc(desc)); } @Deprecated @Override public void visitMethodInsn(final int opcode, final String owner, final String name, final String desc) { if (api >= Opcodes.ASM5) { super.visitMethodInsn(opcode, owner, name, desc); return; } doVisitMethodInsn(opcode, owner, name, desc, opcode == Opcodes.INVOKEINTERFACE); } @Override public void visitMethodInsn(final int opcode, final String owner, final String name, final String desc, final boolean itf) { if (api < Opcodes.ASM5) { super.visitMethodInsn(opcode, owner, name, desc, itf); return; } doVisitMethodInsn(opcode, owner, name, desc, itf); } private void doVisitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) { // Calling super.visitMethodInsn requires to call the correct version // depending on this.api (otherwise infinite loops can occur). To // simplify and to make it easier to automatically remove the backward // compatibility code, we inline the code of the overridden method here. // IMPORTANT: THIS ASSUMES THAT visitMethodInsn IS NOT OVERRIDDEN IN // LocalVariableSorter. if (mv != null) { mv.visitMethodInsn(opcode, remapper.mapType(owner), remapper.mapMethodName(owner, name, desc), remapper.mapMethodDesc(desc), itf); } } @Override public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs) { for (int i = 0; i < bsmArgs.length; i++) { bsmArgs[i] = remapper.mapValue(bsmArgs[i]); } super.visitInvokeDynamicInsn( remapper.mapInvokeDynamicMethodName(name, desc), remapper.mapMethodDesc(desc), (Handle) remapper.mapValue(bsm), bsmArgs); } @Override public void visitTypeInsn(int opcode, String type) { super.visitTypeInsn(opcode, remapper.mapType(type)); } @Override public void visitLdcInsn(Object cst) { super.visitLdcInsn(remapper.mapValue(cst)); } @Override public void visitMultiANewArrayInsn(String desc, int dims) { super.visitMultiANewArrayInsn(remapper.mapDesc(desc), dims); } @Override public AnnotationVisitor visitInsnAnnotation(int typeRef, TypePath typePath, String desc, boolean visible) { AnnotationVisitor av = super.visitInsnAnnotation(typeRef, typePath, remapper.mapDesc(desc), visible); return av == null ? av : new AnnotationRemapper(av, remapper); } @Override public void visitTryCatchBlock(Label start, Label end, Label handler, String type) { super.visitTryCatchBlock(start, end, handler, type == null ? null : remapper.mapType(type)); } @Override public AnnotationVisitor visitTryCatchAnnotation(int typeRef, TypePath typePath, String desc, boolean visible) { AnnotationVisitor av = super.visitTryCatchAnnotation(typeRef, typePath, remapper.mapDesc(desc), visible); return av == null ? av : new AnnotationRemapper(av, remapper); } @Override public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index) { super.visitLocalVariable(name, remapper.mapDesc(desc), remapper.mapSignature(signature, true), start, end, index); } @Override public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, String desc, boolean visible) { AnnotationVisitor av = super.visitLocalVariableAnnotation(typeRef, typePath, start, end, index, remapper.mapDesc(desc), visible); return av == null ? av : new AnnotationRemapper(av, remapper); } }