comparison rust/hg-core/src/dirstate_tree/on_disk.rs @ 51700:7f0cb9ee0534

Backout accidental publication of a large range of revisions

I accidentally published 25e7f9dcad0f::bd1483fd7088, this is the inverse.

51699:bd1483fd7088

    pub(super) fn base_name_start(
        &self,
    ) -> Result<usize, DirstateV2ParseError> {
        let start = self.base_name_start.get();
        if start < self.full_path.len.get() {
            let start = usize::from(start);
            Ok(start)
        } else {
            Err(DirstateV2ParseError::new("not enough bytes for base name"))
        }
    }

    T: BytesCast,
    Len: TryInto<usize>,
{
    // Either `usize::MAX` would result in "out of bounds" error since a single
    // `&[u8]` cannot occupy the entire addess space.
    let start = start.get().try_into().unwrap_or(usize::MAX);
    let len = len.try_into().unwrap_or(usize::MAX);
    let bytes = match on_disk.get(start..) {
        Some(bytes) => bytes,
        None => {
            return Err(DirstateV2ParseError::new(
                "not enough bytes from disk",

51700:7f0cb9ee0534

    pub(super) fn base_name_start(
        &self,
    ) -> Result<usize, DirstateV2ParseError> {
        let start = self.base_name_start.get();
        if start < self.full_path.len.get() {
            let start = usize::try_from(start)
                // u32 -> usize, could only panic on a 16-bit CPU
                .expect("dirstate-v2 base_name_start out of bounds");
            Ok(start)
        } else {
            Err(DirstateV2ParseError::new("not enough bytes for base name"))
        }
    }

    T: BytesCast,
    Len: TryInto<usize>,
{
    // Either `usize::MAX` would result in "out of bounds" error since a single
    // `&[u8]` cannot occupy the entire addess space.
    let start = start.get().try_into().unwrap_or(std::usize::MAX);
    let len = len.try_into().unwrap_or(std::usize::MAX);
    let bytes = match on_disk.get(start..) {
        Some(bytes) => bytes,
        None => {
            return Err(DirstateV2ParseError::new(
                "not enough bytes from disk",