Method check_context_match

src/completion/context/class_completion.rs:2065–2073

Check whether a class matches the given `ClassNameContext`, or allow it through if not loaded. Returns `Some(true)` when the class is loaded and passes `context.matches()`, `Some(false)` when loaded but rejected, and `None` when the class could not be loaded at all. Callers should hard-exclude on `Some(false)`, pass through on `None` (with optional heuristic demotion via [`ClassNameContext::like

(&self, class_name: &str, context: ClassNameContext)

    /// [`ClassNameContext::likely_mismatch`]), and include on
    /// `Some(true)` without demotion.
    fn check_context_match(&self, class_name: &str, context: ClassNameContext) -> Option<bool> {
        // load_stub_class checks uri_classes_index first, then parses in-memory
        // stubs if needed.  No disk I/O.
        if let Some(cls) = self.load_stub_class(class_name) {
            return Some(context.matches(&cls));
        }
        // Truly unknown.
        None
    }

    /// Check whether `class_name` exists in any class source (uri_classes_index,
    /// fqn_uri_index, or stub_index).