comparison rust/hg-core/src/dirstate/dirstate_map.rs @ 42799:5399532510ae

rust: simply use TryInto to convert slice to array

Since our rust module depends on TryInto, there's no point to avoid using it.

While rewriting copy_into_array(), I noticed CPython interface doesn't check
the length of the p1/p2 values, which is marked as TODO.

42798:99dff4264524

// 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::{parsers::PARENT_SIZE, EntryState},
    pack_dirstate, parse_dirstate,
    utils::copy_into_array,
    CopyMap, DirsIterable, DirsMultiset, DirstateEntry, DirstateError,
    DirstateMapError, DirstateParents, DirstateParseError, StateMap,
};
use core::borrow::Borrow;
use std::collections::{HashMap, HashSet};
use std::iter::FromIterator;
use std::ops::Deref;
use std::time::Duration;

pub type FileFoldMap = HashMap<Vec<u8>, Vec<u8>>;

            return Ok(parents.clone());
        }
        let parents;
        if file_contents.len() == PARENT_SIZE * 2 {
            parents = DirstateParents {
                p1: copy_into_array(&file_contents[..PARENT_SIZE]),
                p2: copy_into_array(
                    &file_contents[PARENT_SIZE..PARENT_SIZE * 2],
                ),
            };
        } else if file_contents.is_empty() {
            parents = DirstateParents {
                p1: NULL_ID,
                p2: NULL_ID,

42799:5399532510ae

// 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::{parsers::PARENT_SIZE, EntryState},
    pack_dirstate, parse_dirstate, CopyMap, DirsIterable, DirsMultiset,
    DirstateEntry, DirstateError, DirstateMapError, DirstateParents,
    DirstateParseError, StateMap,
};
use core::borrow::Borrow;
use std::collections::{HashMap, HashSet};
use std::convert::TryInto;
use std::iter::FromIterator;
use std::ops::Deref;
use std::time::Duration;

pub type FileFoldMap = HashMap<Vec<u8>, Vec<u8>>;

            return Ok(parents.clone());
        }
        let parents;
        if file_contents.len() == PARENT_SIZE * 2 {
            parents = DirstateParents {
                p1: file_contents[..PARENT_SIZE].try_into().unwrap(),
                p2: file_contents[PARENT_SIZE..PARENT_SIZE * 2]
                    .try_into()
                    .unwrap(),
            };
        } else if file_contents.is_empty() {
            parents = DirstateParents {
                p1: NULL_ID,
                p2: NULL_ID,