comparison rust/hg-core/src/revlog/node.rs @ 44187:be52b7372ec2

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

44186:796d05f3fa84

    /// Retrieve the `i`th half-byte from the prefix.
    ///
    /// 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 {
        get_nybble(self.buf, i)
    }
}

/// A shortcut for full `Node` references

44187:be52b7372ec2

    /// Retrieve the `i`th half-byte from the prefix.
    ///
    /// 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)
    }
}

/// A shortcut for full `Node` references