chaokunyang commented on code in PR #3483:
URL: https://github.com/apache/fory/pull/3483#discussion_r2973512341
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rust/fory-core/src/row/reader.rs:
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@@ -103,10 +121,17 @@ pub struct MapViewer<'r> {
impl<'r> MapViewer<'r> {
pub fn new(row: &'r [u8]) -> MapViewer<'r> {
- let key_byte_size = LittleEndian::read_u64(&row[0..8]) as usize;
+ let Some(header) = row.get(0..8) else {
+ return MapViewer {
+ key_row: &[],
+ value_row: &[],
+ };
+ };
+ let key_byte_size = LittleEndian::read_u64(header) as usize;
+ let key_end = (8usize).saturating_add(key_byte_size).min(row.len());
Review Comment:
ditto here.
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