soot.jbco.name.NameGenerator Maven / Gradle / Ivy
package soot.jbco.name;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1997 - 2018 Raja Vallée-Rai and others
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
/**
* Generates names that are compatible with Java identifiers.
*
* @author p.nesterovich
* @since 21.03.18
*/
public interface NameGenerator {
/**
* According to JVM specification, the name is limited to 65535 characters by the 16-bit unsigned length item of the
* CONSTANT_Utf8_info structure. As the limit is on the number of bytes and UTF-8 encodes some characters using two or
* three bytes, we assume that in worst case number or characters is 65535 / 3
*/
int NAME_MAX_LENGTH = 65_535 / 3;
/**
* Generates random name of required length that can be used as Java identifier.
*
* @param size
* the expected size
* @return the name of expected length
* @throws IllegalArgumentException
* when passed size is more than {@link NameGenerator#NAME_MAX_LENGTH}
*/
String generateName(int size);
}