Function is_self_or_static

src/util.rs:1851–1853

Returns `true` if `s` is one of the PHP keywords that refer to the current* class (not the parent): `self`, `static`, or `$this`. Callers that also need to match `parent` should add a separate `eq_ignore_ascii_case("parent")` check, because `parent` resolves to the *parent* class rather than the current one. The comparison is case-insensitive for `self` and `static`. `$this` is matched literally

(s: &str)

/// The comparison is case-insensitive for `self` and `static`.
/// `$this` is matched literally (it is always lowercase in PHP).
pub(crate) fn is_self_or_static(s: &str) -> bool {
    s.eq_ignore_ascii_case("self") || s.eq_ignore_ascii_case("static") || s == "$this"
}

/// Returns `true` if `s` is one of the PHP class-keyword references:
/// `self`, `static`, `$this`, or `parent`.