Struct SourceMap 

pub struct SourceMap { /* private fields */ }

Cache of file contents and line indices, keyed by canonical path.

Used by the loader and the exporter — the exporter renders spans against the original bytes; eviction is therefore off until the consumer signals otherwise. Internally backed by a RwLock<HashMap> (rare writes, frequent reads); DashMap is overkill for the loader’s call pattern (one writer per file, then read-only).

Implementations

impl SourceMap

pub fn new() -> Self

Construct an empty cache.

pub fn get(&self, path: &Path) -> Option<Arc<str>>

Look up cached contents for path. Returns None if not cached.

pub fn insert(&self, path: &Path, src: Arc<str>) -> Arc<str>

Insert (or overwrite) the cached contents for path. Returns the Arc<str> the caller should use going forward.

pub fn line_index(&self, path: &Path) -> Option<LineIndex>

Build (or reuse a cached) LineIndex for path. Returns None if the path isn’t in the cache.

pub fn len(&self) -> usize

Number of files currently cached.

pub fn is_empty(&self) -> bool

Whether the cache is empty.

Trait Implementations

impl Debug for SourceMap

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

Formats the value using the given formatter.

impl Default for SourceMap

fn default() -> SourceMap

Returns the “default value” for a type.