swc_ecma_preset_env/regenerator/mod.rs
use swc_ecma_visit::{noop_visit_type, Visit, VisitWith};
pub(super) fn is_required<T: VisitWith<RegeneratorVisitor>>(node: &T) -> bool {
let mut v = RegeneratorVisitor { found: false };
node.visit_with(&mut v);
v.found
}
pub(super) struct RegeneratorVisitor {
found: bool,
}
/// TODO
impl Visit for RegeneratorVisitor {
noop_visit_type!();
}