/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You 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.

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package com.sun.org.apache.bcel.internal.classfile;

import java.io.DataInput;

import java.io.DataOutputStream;

import java.io.IOException;

import com.sun.org.apache.bcel.internal.Const;

/**

 * This class represents a MethodParameters attribute.

 *

 * @see <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.24">

 * The class File Format : The MethodParameters Attribute</a>

 * @since 6.0

 */

public class MethodParameters extends Attribute {

    private MethodParameter[] parameters = new MethodParameter[0];

    MethodParameters(final int name_index, final int length, final DataInput input, final ConstantPool constant_pool) throws IOException {

        super(Const.ATTR_METHOD_PARAMETERS, name_index, length, constant_pool);

        final int parameters_count = input.readUnsignedByte();

        parameters = new MethodParameter[parameters_count];

        for (int i = 0; i < parameters_count; i++) {

            parameters[i] = new MethodParameter(input);

        }

    }

    public MethodParameter[] getParameters() {

        return parameters;

    }

    public void setParameters(final MethodParameter[] parameters) {

        this.parameters = parameters;

    }

    @Override

    public void accept(final Visitor v) {

        v.visitMethodParameters(this);

    }

    @Override

    public Attribute copy(final ConstantPool _constant_pool) {

        final MethodParameters c = (MethodParameters) clone();

        c.parameters = new MethodParameter[parameters.length];

        for (int i = 0; i < parameters.length; i++) {

            c.parameters[i] = parameters[i].copy();

        }

        c.setConstantPool(_constant_pool);

        return c;

    }

    /**

     * Dump method parameters attribute to file stream in binary format.

     *

     * @param file Output file stream

     * @throws IOException

     */

    @Override

       public void dump(final DataOutputStream file) throws IOException {

           super.dump(file);

           file.writeByte(parameters.length);

        for (final MethodParameter parameter : parameters) {

            parameter.dump(file);

        }

    }

}