Struct AliasMap 

pub struct AliasMap {
    pub entries: BTreeMap<String, AliasEntry>,
    pub identifiers: usize,
    pub canonical_zones: usize,
    pub links: usize,
    pub duplicated_byte_links: usize,
}

The whole manifest: a deterministic (sorted) map of identifiers plus summary counts.

Fields

entries: BTreeMap<String, AliasEntry>

Identifier → entry, ordered by name for deterministic output.

identifiers: usize

canonical_zones: usize

links: usize

duplicated_byte_links: usize

Links materialised as byte copies (i.e. where the same TZif bytes exist under two names). This is the figure jiff#258 was asking to make visible.

Implementations

impl AliasMap

pub fn validate(&self) -> Result<()>

Validate the alias map’s internal consistency (T12.4c). Guarantees that every Link entry “corresponds to a materialised link/copy” of a real compiled zone:

• every Link’s target is present in this map as a Zone entry (no dangling alias — “missing target fails”; a link that resolved to another link, or to nothing, never gets here because build records the resolved canonical zone);
• the Link’s recorded target_sha256 is non-empty and equals that zone’s hash (the alias genuinely names those exact bytes — the jiff#258 duplication is real, not asserted);
• no entry is a self-link (name == target) — resolve_link_target already rejects self-links/cycles upstream (they are skipped in plan::run and counted failed in the link profile), so this is the alias-map-level guard that keeps that coverage honest;
• the summary counts (canonical_zones/links/identifiers) agree with the entries.

build calls this before returning, so any AliasMap handed out is already consistent.

pub fn to_json(&self) -> String

Render the manifest as deterministic, pretty-printed JSON (2-space indent, keys in a fixed order; entries sorted by identifier via the BTreeMap).

pub fn write_to(&self, path: &Path) -> Result<()>

Write the manifest JSON to path.

Trait Implementations

impl Clone for AliasMap

fn clone(&self) -> AliasMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AliasMap

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

Formats the value using the given formatter.