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/*
* Copyright (C) 2019 The Android Open Source Project
*
* 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 com.android.tools.layoutlib.create;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import java.lang.reflect.Modifier;
/**
* Renames the static initializer to a public deferredStaticInitializer method.
*/
public class DeferStaticInitializerClassAdapter extends ClassVisitor {
public DeferStaticInitializerClassAdapter(ClassVisitor cv) {
super(Main.ASM_VERSION, cv);
}
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature,
String[] exceptions) {
if (name.equals("<clinit>")) {
name = "deferredStaticInitializer";
access |= Modifier.PUBLIC;
}
return super.visitMethod(access, name, desc, signature, exceptions);
}
@Override
public FieldVisitor visitField(int access, String name, String desc, String signature,
Object value) {
// Java 9 does not allow static final field to be modified outside of <clinit>.
// So if a field is static, it has to be non-final.
if ((access & Opcodes.ACC_STATIC) != 0 ) {
access = access & ~Opcodes.ACC_FINAL;
}
return super.visitField(access, name, desc, signature, value);
}
}
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