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use rustc_data_structures::fx::FxHashMap; #[derive(Clone)] pub struct Registry { descriptions: FxHashMap<&'static str, &'static str>, } impl Registry { pub fn new(descriptions: &[(&'static str, &'static str)]) -> Registry { Registry { descriptions: descriptions.iter().cloned().collect() } } pub fn find_description(&self, code: &str) -> Option<&'static str> { self.descriptions.get(code).cloned() } }