Function resolve_class_keyword

src/util.rs:1875–1886

Resolve `self`, `static`, `$this`, or `parent` to a class name. Returns `Some(class_name)` when the keyword can be resolved, or `None` when: - `keyword` is not a recognised class keyword, or - there is no `current_class`, or - `parent` is used but the class has no parent. This centralises the keyword → class-name mapping that was previously duplicated across 10+ call sites.

(
    keyword: &str,
    current_class: Option<&ClassInfo>,
)

/// This centralises the keyword → class-name mapping that was
/// previously duplicated across 10+ call sites.
pub(crate) fn resolve_class_keyword(
    keyword: &str,
    current_class: Option<&ClassInfo>,
) -> Option<String> {
    if is_self_or_static(keyword) {
        current_class.map(|cc| cc.name.to_string())
    } else if keyword.eq_ignore_ascii_case("parent") {
        current_class.and_then(|cc| cc.parent_class.map(|a| a.to_string()))
    } else {
        None
    }
}

// ─── Shared helpers for code actions and diagnostics ────────────────────────