Struct HeaderOnlySnapshot 

pub struct HeaderOnlySnapshot<'view> { /* private fields */ }

Header-only handle to a snapshot’s bytes.

HeaderOnlySnapshot is the typestate-distinct counterpart to Snapshot: it validates only the fixed header (magic, format versions, header size, reserved bytes) and exposes the format versions, but it deliberately does not parse or expose the section table. Callers who only need to inspect format compatibility (e.g., to decide whether the snapshot is readable at all) should use this type rather than asking Snapshot to skip section validation.

Performance

HeaderOnlySnapshot::open is O(1) — it does not walk the section table or payload region. Subsequent accessors are O(1).

Implementations

impl<'view> HeaderOnlySnapshot<'view>

pub fn open(bytes: &'view [u8]) -> Result<Self, SnapshotError>

Opens bytes as a header-validated snapshot handle.

Validates the magic bytes, format major and minor, header size, and reserved bytes only. The section table and payload region are not inspected and may still be malformed.

Errors

Returns SnapshotError for any header-level invariant violation.

Performance

This function is O(1).

pub const fn bytes(&self) -> &'view [u8]

Returns the borrowed snapshot bytes.

Performance

This method is O(1).

pub const fn format_major(&self) -> u32

Returns the format major version recorded in the snapshot header.

Performance

This method is O(1).

pub const fn format_minor(&self) -> u32

Returns the format minor version recorded in the snapshot header.

Performance

This method is O(1).

Trait Implementations

impl<'view> Clone for HeaderOnlySnapshot<'view>

fn clone(&self) -> HeaderOnlySnapshot<'view>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'view> Debug for HeaderOnlySnapshot<'view>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'view> Copy for HeaderOnlySnapshot<'view>