jp0317 commented on code in PR #6738:
URL: https://github.com/apache/arrow-rs/pull/6738#discussion_r1847583575
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parquet/src/thrift.rs:
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@@ -67,7 +67,17 @@ impl<'a> TCompactSliceInputProtocol<'a> {
let mut shift = 0;
loop {
let byte = self.read_byte()?;
- in_progress |= ((byte & 0x7F) as u64) << shift;
+ let val = (byte & 0x7F) as u64;
+ let val = val.checked_shl(shift).map_or_else(
Review Comment:
i'm afraid wrapping might cause correctness issues...besides, would the
checked_shl really make a noticeable performance difference here?
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