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dag: fix segment format comment

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Summary: The first byte is the flag.

Reviewed By: sfilipco

Differential Revision: D26654640

fbshipit-source-id: 4d66f14c73fe40a154ca7c08f9a9dff3a54ae337
This commit is contained in:
Jun Wu 2021-02-25 08:31:00 -08:00 committed by Facebook GitHub Bot
parent 52a1c515a8
commit 7684e79be6
1 changed files with 1 additions and 1 deletions
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2
eden/scm/lib/dag/src/segment.rs
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@ -39,7 +39,7 @@ pub struct Segment(pub(crate) Bytes);
// Serialization format for Segment:
//
// ```plain,ignore
// SEGMENT := LEVEL (1B) + HIGH (8B) + vlq(HIGH-LOW) + vlq(PARENT_COUNT) + vlq(VLQ, PARENTS)
// SEGMENT := FLAG (1B) + LEVEL (1B) + HIGH (8B) + vlq(HIGH-LOW) + vlq(PARENT_COUNT) + vlq(VLQ, PARENTS)
// ```
//
// The reason HIGH is not stored in VLQ is because it's used by range lookup,