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changeset 44262:be52b7372ec2

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rust-node: avoid meaningless read at the end of odd prefix This should be heavily factored out by the CPU branch predictor anyway. Differential Revision: https://phab.mercurial-scm.org/D8019
author Georges Racinet <georges.racinet@octobus.net>
date Mon, 27 Jan 2020 20:28:47 +0100
parents 796d05f3fa84
children 1f9e6fbdd3e6
files rust/hg-core/src/revlog/node.rs
diffstat 1 files changed, 1 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/rust/hg-core/src/revlog/node.rs	Fri Dec 27 16:06:54 2019 +0100
+++ b/rust/hg-core/src/revlog/node.rs	Mon Jan 27 20:28:47 2020 +0100
@@ -223,6 +223,7 @@
     /// This is also the `i`th hexadecimal digit in numeric form,
     /// also called a [nybble](https://en.wikipedia.org/wiki/Nibble).
     pub fn get_nybble(&self, i: usize) -> u8 {
+        assert!(i < self.len());
         get_nybble(self.buf, i)
     }
 }