/*
 * Copyright (c) 2017, Oracle and/or its affiliates.
 *
 * 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 holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.oracle.truffle.llvm.parser.metadata;

import java.util.ArrayList;
import java.util.List;

public final class MDGenericDebug implements MDBaseNode {

    private final long tag;

    private final long version;

    private final MDReference header;

    private final List<MDReference> dwarfOps;

    private MDGenericDebug(long tag, long version, MDReference header, List<MDReference> dwarfOps) {
        this.tag = tag;
        this.version = version;
        this.header = header;
        this.dwarfOps = dwarfOps;
    }

    public long getTag() {
        return tag;
    }

    public long getVersion() {
        return version;
    }

    public MDReference getHeader() {
        return header;
    }

    public List<MDReference> getDwarfOps() {
        return dwarfOps;
    }

    @Override
    public void accept(MetadataVisitor visitor) {
        visitor.visit(this);
    }

    @Override
    public String toString() {
        return String.format("GenericDebug (tag=%d, version=%d, header=%s, dwarfOps=%s)", getTag(), getVersion(), getHeader(), getDwarfOps());
    }

    private static final int ARGINDEX_TAG = 1;
    private static final int ARGINDEX_VERSION = 2;
    private static final int ARGINDEX_HEADER = 3;
    private static final int ARGINDEX_DATASTART = 4;

    public static MDGenericDebug create38(long[] args, MetadataList md) {
        final long tag = args[ARGINDEX_TAG];
        final long version = args[ARGINDEX_VERSION];
        final MDReference header = md.getMDRefOrNullRef(args[ARGINDEX_HEADER]);
        final List<MDReference> dwarfOps = new ArrayList<>(args.length - ARGINDEX_DATASTART);
        for (int i = ARGINDEX_DATASTART; i < args.length; i++) {
            dwarfOps.add(md.getMDRefOrNullRef(args[i]));
        }
        return new MDGenericDebug(tag, version, header, dwarfOps);
    }
}