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use swc_common::DUMMY_SP; use swc_ecma_ast::Invalid; use swc_ecma_visit::{Visit, VisitWith}; pub trait Check: Visit + Default { fn should_handle(&self) -> bool; } pub fn should_work<C, T>(n: &T) -> bool where C: Check, T: VisitWith<C>, { let mut checker = C::default(); n.visit_with(&Invalid { span: DUMMY_SP }, &mut checker); checker.should_handle() }