Struct PathTable

pub struct PathTable {
    paths: Vec<(&'static Path, &'static Path)>,
}

A global table for the pathnames used in FileEntry and Loc.

See the self(module-level documentation) for details.

Fields

paths: Vec<(&'static Path, &'static Path)>

This is indexed by a PathTableIndex. It contains two paths per entry: a path relative to a FileKind root, and a full filesystem path.

The paths must never be moved. This works even though the Vec can reallocate, because the underlying paths are constructed from leaked Pathbufs.

Implementations

impl PathTable

pub fn store(local: PathBuf, fullpath: PathBuf) -> PathTableIndex

Stores a path in the path table and returns the index for the entry. It’s assumed that the caller has a master list of paths and won’t store duplicates.

The indexes are guaranteed to be in ascending order, so that if the caller stores a sorted list of paths then the indexes will also be sorted.

fn store_internal( &mut self, local: PathBuf, fullpath: PathBuf, ) -> PathTableIndex

pub fn lookup_path(idx: PathTableIndex) -> &'static Path

Return the local path based on its index. This can panic if the index is not one provided by PathTable::store.

pub fn lookup_fullpath(idx: PathTableIndex) -> &'static Path

Return the full path based on its index. This can panic if the index is not one provided by PathTable::store.

fn lookup_paths_inner( &self, idx: PathTableIndex, ) -> (&'static Path, &'static Path)

Trait Implementations

impl Debug for PathTable

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

Formats the value using the given formatter.

impl Default for PathTable

fn default() -> PathTable

Returns the “default value” for a type.