org.antlr.v4.runtime.misc.IntSet Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of antlr4-runtime
The ANTLR 4 Runtime
There is a newer version: 4.9.0
/*
 * [The "BSD license"]
 *  Copyright (c) 2012 Terence Parr
 *  Copyright (c) 2012 Sam Harwell
 *  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. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.antlr.v4.runtime.misc;


import java.util.List;

/** A generic set of ints.
 *
 *  @see IntervalSet
 */
public interface IntSet {
    /** Add an element to the set */
    void add(int el);

    /** Add all elements from incoming set to this set.  Can limit
     *  to set of its own type. Return "this" so we can chain calls.
     */
    IntSet addAll(IntSet set);

    /** Return the intersection of this set with the argument, creating
     *  a new set.
     */
    IntSet and(IntSet a);

    IntSet complement(IntSet elements);

    IntSet or(IntSet a);

    IntSet subtract(IntSet a);

    /** Return the size of this set (not the underlying implementation's
     *  allocated memory size, for example).
     */
    int size();

    boolean isNil();

    @Override
    boolean equals(Object obj);

    int getSingleElement();

    boolean contains(int el);

    /** remove this element from this set */
    void remove(int el);

    List toList();

    @Override
    String toString();
}