SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// Multi-Phasic Applications: SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package net.multiphasicapps.classfile;

import cc.squirreljme.runtime.cldc.debug.Debugging;
import cc.squirreljme.runtime.cldc.util.UnmodifiableIterator;
import java.util.Iterator;
import org.jetbrains.annotations.NotNull;

/**
 * Represents a pair of stack map tables, for input and output.
 *
 * @since 2023/07/03
 */
public final class StackMapTablePair
    implements Iterable<StackMapTableState>
{
    /** The input table. */
    public final StackMapTableState input;
    
    /** The output table. */
    public final StackMapTableState output;
    
    /**
     * Initializes the stack map pair.
     * 
     * @param __input The input.
     * @param __output The output.
     * @throws NullPointerException On null arguments.
     * @since 2023/07/03
     */
    public StackMapTablePair(StackMapTableState __input,
        StackMapTableState __output)
        throws NullPointerException
    {
        if (__input == null || __output == null)
            throw new NullPointerException("NARG");
        
        this.input = __input;
        this.output = __output;
    }
    
    /**
     * {@inheritDoc}
     * @since 2023/08/13
     */
    @Override
    public Iterator<StackMapTableState> iterator()
    {
        return UnmodifiableIterator.of(this.input, this.output);
    }
}