org.objectweb.asm.AsmBridge Maven / Gradle / Ivy
/*
* dex2jar - Tools to work with android .dex and java .class files
* Copyright (c) 2009-2014 Panxiaobo
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.objectweb.asm;
import org.objectweb.asm.tree.MethodNode;
public class AsmBridge {
public static MethodVisitor searchMethodWriter(MethodVisitor mv) {
while (mv != null && !(mv instanceof MethodWriter)) {
mv = mv.mv;
}
return mv;
}
public static int sizeOfMethodWriter(MethodVisitor mv) {
MethodWriter mw = (MethodWriter) mv;
return mw.getSize();
}
private static void removeMethodWriter(MethodWriter mw) {
// mv must be the last element
ClassWriter cw = mw.cw;
MethodWriter p = cw.firstMethod;
if (p == mw) {
cw.firstMethod = null;
if (cw.lastMethod == mw) {
cw.lastMethod = null;
}
} else {
while (p != null) {
if (p.mv == mw) {
p.mv = mw.mv;
if (cw.lastMethod == mw) {
cw.lastMethod = p;
}
break;
} else {
p = (MethodWriter) p.mv;
}
}
}
}
public static void replaceMethodWriter(MethodVisitor mv, MethodNode mn) {
MethodWriter mw = (MethodWriter) mv;
ClassWriter cw = mw.cw;
mn.accept(cw);
removeMethodWriter(mw);
}
}