jet.LongRange Maven / Gradle / Ivy
/*
* Copyright 2010-2013 JetBrains s.r.o.
*
* Licensed 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 jet;
import org.jetbrains.jet.rt.annotation.AssertInvisibleInResolver;
@AssertInvisibleInResolver
public final class LongRange implements Range, Progression {
public static final LongRange EMPTY = new LongRange(1, 0);
private final long start;
private final long end;
public LongRange(long start, long end) {
this.start = start;
this.end = end;
}
@Override
public boolean contains(Long item) {
return start <= item && item <= end;
}
public boolean contains(long item) {
return start <= item && item <= end;
}
@Override
public Long getStart() {
return start;
}
@Override
public Long getEnd() {
return end;
}
@Override
public Long getIncrement() {
return 1L;
}
@Override
public LongIterator iterator() {
return new LongProgressionIterator(start, end, 1);
}
@Override
public String toString() {
return start + ".." + end;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
LongRange range = (LongRange) o;
return end == range.end && start == range.start;
}
@Override
public int hashCode() {
int result = (int) (start ^ (start >>> 32));
result = 31 * result + (int) (end ^ (end >>> 32));
return result;
}
}