Struct OptionOverrideSet 

pub struct OptionOverrideSet { /* private fields */ }

A set of OptionOverrides contributed by one layer producer (typically the return value of Mode::options()).

SmallVec keeps the typical case (0-4 overrides per mode) inline; modes that contribute many overrides spill to the heap. Layer-input data, not hot-path read data — the resolver walks each set exactly once per recompute_options call.

Implementations

impl OptionOverrideSet

pub fn new() -> OptionOverrideSet

An empty set — what a mode that overrides nothing returns.

pub fn with_capacity(cap: usize) -> OptionOverrideSet

An empty set with room for cap overrides before spilling past the inline capacity (4).

pub fn push(&mut self, ov: OptionOverride)

Append an override. Order within a set is preserved; the resolver visits elements in this order when merging.

pub fn len(&self) -> usize

Number of overrides in the set, duplicates included (two entries for one option count twice).

pub fn is_empty(&self) -> bool

true when the set contributes nothing.

pub fn iter(&self) -> impl Iterator<Item = &OptionOverride>

The overrides in push order — the order the resolver visits them in, so a later entry for the same option wins within the set (priority permitting).

Trait Implementations

impl Clone for OptionOverrideSet

fn clone(&self) -> OptionOverrideSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionOverrideSet

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

Formats the value using the given formatter.

impl Default for OptionOverrideSet

fn default() -> OptionOverrideSet

Returns the “default value” for a type.

impl FromIterator<OptionOverride> for OptionOverrideSet

fn from_iter<I>(iter: I) -> OptionOverrideSet

where I: IntoIterator<Item = OptionOverride>,

Creates a value from an iterator.