/guava/android/guava/src/com/google/common/collect/TreeRangeSet.java
if ( complementLowerBoundWindow.hasLowerBound( ) ) {
if ( !complementLowerBoundWindow.isConnected ( subWindow ) ) {
NavigableMap<Cut<C>, Range<C>> positiveRangesByLowerBound, Range<Cut<C>> window) { this.positiveRangesByLowerBound = positiveRangesByLowerBound; this.positiveRangesByUpperBound = new RangesByUpperBound<>(positiveRangesByLowerBound); this.complementLowerBoundWindow = window; } private NavigableMap<Cut<C>, Range<C>> subMap(Range<Cut<C>> subWindow) { <extra_id_0> return ImmutableSortedMap.of(); } else { subWindow = subWindow.intersection(complementLowerBoundWindow); return new ComplementRangesByLowerBound<>(positiveRangesByLowerBound, subWindow); } }