Understanding a lifetime error
⚓ Rust 📅 2026-03-01 👤 surdeus 👁️ 1I have a structure RolodexBase (used in the state structure for iced) which contains a HashMap (people) which maps usize to Person (another structure, owned by the RolodexBased). That has a method get_person to get a reference to a specific person by the usize key.
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121 | pub fn get_person<'a>(&self, id: usize) -> Option<&'a Person> {
| -- - let's call the lifetime of this reference `'1`
| |
| lifetime `'a` defined here
122 | self.people.get(&id)
| ^^^^^^^^^^^^^^^^^^^^ method was supposed to return data with lifetime `'a` but it is returning data with lifetime `'1`
Given that the HashMap and its Person(s) have the same lifetime as the RolodexBase, I thought I could use the same lifetime for the result. Apparently, I am missing something that should have been obvious to me. Sorry.
Joel
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