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| author | Nicholas Nethercote <n.nethercote@gmail.com> | 2022-05-25 14:47:28 +1000 |
|---|---|---|
| committer | Nicholas Nethercote <n.nethercote@gmail.com> | 2022-05-26 08:56:49 +1000 |
| commit | 3e810c64d091112cf8ac51a533068632fad30a8d (patch) | |
| tree | 7160b6dd86a97e425c50949fab6c259d951089e2 /compiler/rustc_span/src/lib.rs | |
| parent | b2eed72a6fbf254e7d44942eaa121fcbed05d3fb (diff) | |
| download | rust-3e810c64d091112cf8ac51a533068632fad30a8d.tar.gz rust-3e810c64d091112cf8ac51a533068632fad30a8d.zip | |
Augment a comment.
Diffstat (limited to 'compiler/rustc_span/src/lib.rs')
| -rw-r--r-- | compiler/rustc_span/src/lib.rs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 8737e45487e..f44eac63cef 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -1270,7 +1270,9 @@ impl<S: Encoder> Encodable<S> for SourceFile { // the lines list is sorted and individual lines are // probably not that long. Because of that we can store lines // as a difference list, using as little space as possible - // for the differences. + // for the differences. But note that the first line is + // always encoded as a `BytePos` because its position is + // often much larger than any of the differences. let max_line_length = if lines.len() == 1 { 0 } else { |