rust/hg-core/src/dirstate.rs

rust: use `logging_timer` instead of `micro_timer`

I am the author of `micro_timer`.
I built it at the time because I couldn't find a crate that was simple to use
and flexible to do function timing with. Turns out I just couldn't find it
because crates.io's search isn't all that great, or maybe I didn't look hard
enough.

`logging_timer` is better in every way:
    - supports changing the logging level
    - supports start and end logging
    - supports intermediary messages
    - supports inline macros
    - supports formatting the output
    - better IDE/tree-sitter integration thanks to a more robust proc macro

I also changed all uses to one-liners, so it's easier to copy-paste.

// dirstate module
//
// Copyright 2019 Raphaël Gomès <[e-mail]>
//
// This software may be used and distributed according to the terms of the
// GNU General Public License version 2 or any later version.

use crate::dirstate_tree::on_disk::DirstateV2ParseError;
use crate::revlog::node::NULL_NODE;
use crate::revlog::Node;
use crate::utils::hg_path::HgPath;
use bytes_cast::BytesCast;

pub mod dirs_multiset;
pub mod entry;
pub mod parsers;
pub mod status;

pub use self::entry::*;

#[derive(Debug, PartialEq, Copy, Clone, BytesCast)]
#[repr(C)]
pub struct DirstateParents {
    pub p1: Node,
    pub p2: Node,
}

impl DirstateParents {
    pub const NULL: Self = Self {
        p1: NULL_NODE,
        p2: NULL_NODE,
    };

    pub fn is_merge(&self) -> bool {
        return !(self.p2 == NULL_NODE);
    }
}

pub type StateMapIter<'a> = Box<
    dyn Iterator<
            Item = Result<(&'a HgPath, DirstateEntry), DirstateV2ParseError>,
        > + Send
        + 'a,
>;

pub type CopyMapIter<'a> = Box<
    dyn Iterator<Item = Result<(&'a HgPath, &'a HgPath), DirstateV2ParseError>>
        + Send
        + 'a,
>;