> +pub trait Matcher {
> + /// Explicitly listed files
> + fn file_set(&self) -> HashSet<&HgPath>;
[...]
> + /// Matcher will match everything and `files_set()` will be empty:
> + /// optimization might be possible.
> + fn matches_everything(&self) -> bool {
> + false
> + }
Maybe better to not provide the default implementations since not a few
matchers will have to reimplement them.
> +impl Matcher for AlwaysMatcher {
> + fn file_set(&self) -> HashSet<&HgPath> {
> + HashSet::new()
> + }
> +
> + fn visit_children_set(
> + &self,
> + _directory: impl AsRef<HgPath>,
> + ) -> VisitChildrenSet {
> + VisitChildrenSet::Recursive
> + }
Need to implement `matches()` and `matches_everything()`?
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