Enum CompiledPattern 

pub enum CompiledPattern {
    MatchAll,
    RootFilesOnly,
    ExtensionSuffix(String),
    SingleSegmentGlob(String),
    MultiSegmentGlob(String),
    AnchoredDirectory(String),
    UnanchoredDirectory(String),
    Exact(String),
}

A CODEOWNERS pattern, pre-processed for repeated fast matching.

Use CompiledPattern::new to compile, then CompiledPattern::matches to match paths. Construction is O(pattern length); matching is close to O(path length) for all variants except the glob ones.

Variants

MatchAll

Matches everything (unanchored * or **).

RootFilesOnly

Anchored /* — matches only root-level files (no slashes in path).

ExtensionSuffix(String)

Extension suffix like .rs (from *.rs) — simple ends_with check.

Stored as the literal suffix including the leading dot. Matcher also verifies there is a / immediately before the suffix to avoid false positives like notrs matching .rs.

SingleSegmentGlob(String)

Single-segment glob like *.rs that fell out of the extension fast-path — matched via fast_glob with a prepended **/ so it triggers in any directory.

MultiSegmentGlob(String)

Multi-segment glob like src/**/*.rs — matched directly via fast_glob.

AnchoredDirectory(String)

Anchored directory pattern like /src/ — matches a prefix at the root only.

UnanchoredDirectory(String)

Unanchored directory pattern like docs/ — matches anywhere in the tree.

Exact(String)

An exact path, always anchored (no wildcards, no trailing slash).

Implementations

impl CompiledPattern

pub fn new(pattern: &str) -> Self

Compile a CODEOWNERS pattern string into a specialized matcher.

The leading / (anchor) is inspected to distinguish anchored from unanchored directory patterns; a trailing / selects directory matching over exact matching.

pub fn matches(&self, path: &str) -> bool

Test whether path matches this pattern.

Empty paths never match. Pattern semantics follow GitHub’s CODEOWNERS rules (last match wins is handled by the caller — see check_file_ownership_parsed).