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/*
* 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.
*/
package org.apache.bcel.classfile;
import java.io.DataInput;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.bcel.Const;
/**
* Entry of the parameters table.
*
* @see <a href="http://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 MethodParameter implements Cloneable {
/** Index of the CONSTANT_Utf8_info structure in the constant_pool table representing the name of the parameter */
private int name_index;
/** The access flags */
private int access_flags;
public MethodParameter() {
}
/**
* Construct object from input stream.
*
* @param input Input stream
* @throws java.io.IOException
* @throws ClassFormatException
*/
MethodParameter(final DataInput input) throws IOException {
name_index = input.readUnsignedShort();
access_flags = input.readUnsignedShort();
}
public int getNameIndex() {
return name_index;
}
public void setNameIndex(final int name_index) {
this.name_index = name_index;
}
/**
* Returns the name of the parameter.
*/
public String getParameterName(final ConstantPool constant_pool) {
if (name_index == 0) {
return null;
}
return ((ConstantUtf8) constant_pool.getConstant(name_index, Const.CONSTANT_Utf8)).getBytes();
}
public int getAccessFlags() {
return access_flags;
}
public void setAccessFlags(final int access_flags) {
this.access_flags = access_flags;
}
public boolean isFinal() {
return (access_flags & Const.ACC_FINAL) != 0;
}
public boolean isSynthetic() {
return (access_flags & Const.ACC_SYNTHETIC) != 0;
}
public boolean isMandated() {
return (access_flags & Const.ACC_MANDATED) != 0;
}
/**
* Dump object to file stream on binary format.
*
* @param file Output file stream
* @throws IOException
*/
public final void dump(final DataOutputStream file) throws IOException {
file.writeShort(name_index);
file.writeShort(access_flags);
}
/**
* @return deep copy of this object
*/
public MethodParameter copy() {
try {
return (MethodParameter) clone();
} catch (final CloneNotSupportedException e) {
// TODO should this throw?
}
return null;
}
}
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