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An unofficial backport of the JDK Classfile API to Java 17

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/*
 * Copyright (c) 2022, 2024, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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 io.github.dmlloyd.classfile.impl;

import io.github.dmlloyd.classfile.Attribute;
import io.github.dmlloyd.classfile.constantpool.ConstantPool;

public class AbstractDirectBuilder {
    protected final SplitConstantPool constantPool;
    protected final ClassFileImpl context;
    protected final AttributeHolder attributes = new AttributeHolder();
    protected M original;

    public AbstractDirectBuilder(SplitConstantPool constantPool, ClassFileImpl context) {
        this.constantPool = constantPool;
        this.context = context;
    }

    public SplitConstantPool constantPool() {
        return constantPool;
    }

    public boolean canWriteDirect(ConstantPool source) {
        return constantPool().canWriteDirect(source);
    }

    public void setOriginal(M original) {
        this.original = original;
    }

    public void writeAttribute(Attribute a) {
        if (Util.isAttributeAllowed(a, context)) {
            attributes.withAttribute(a);
        }
    }
}