tustvold commented on code in PR #1791: URL: https://github.com/apache/arrow-rs/pull/1791#discussion_r890005249
########## parquet/src/file/page_index/range.rs: ########## @@ -0,0 +1,461 @@ +// 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. +use crate::errors::ParquetError; +use parquet_format::PageLocation; +use std::cmp::Ordering; +use std::collections::VecDeque; +use std::ops::RangeInclusive; + +type Range = RangeInclusive<usize>; + +pub trait RangeOps { + fn is_before(&self, other: &Range) -> bool; + + fn is_after(&self, other: &Range) -> bool; + + fn count(&self) -> usize; +} + +impl RangeOps for Range { + fn is_before(&self, other: &Range) -> bool { + self.end() < other.start() + } + + fn is_after(&self, other: &Range) -> bool { + self.start() > other.end() + } + + fn count(&self) -> usize { + self.end() - self.start() + 1 + } +} + +/// Return the union of the two ranges, +/// Return `None` if there are hole between them. +pub fn union(left: &Range, right: &Range) -> Option<Range> { Review Comment: Neither this method nor intersection appear to be used anywhere? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
