Struct FileParamStore 

pub struct FileParamStore { /* private fields */ }

Hosted ParamStore persisting scalar parameter overrides to a text file: one name<TAB>kind<TAB>value line per scalar parameter (kind ∈ b/i/d/s). Arrays and NotSet are not persisted; names or values containing a tab or newline are skipped (they would corrupt the line format). Writes are atomic (temp file + rename).

Implementations

impl FileParamStore

pub fn new(path: impl Into<PathBuf>) -> Self

Persist to / restore from path.

Trait Implementations

impl Clone for FileParamStore

fn clone(&self) -> FileParamStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileParamStore

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

Formats the value using the given formatter.

impl ParamStore for FileParamStore

fn load(&self, apply: &mut dyn FnMut(&str, ParameterValue))

Apply each persisted (name, value) via apply. Called once at boot after defaults are declared, so persisted values override them.

fn save( &mut self, params: &mut dyn Iterator<Item = (&str, &ParameterValue)>, ) -> Result<(), ParamStoreError>

Persist the full current parameter set. params yields (name, value) for every declared parameter; called after a runtime set changes a value. Non-scalar values (arrays, NotSet) are backend-defined and may be skipped.