File: old-closure-explicit-types.rs

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rustc 1.85.0%2Bdfsg3-1
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//@ run-pass

pub fn main() {
    fn as_buf<T, F>(s: String, f: F) -> T where F: FnOnce(String) -> T { f(s) }
    as_buf("foo".to_string(), |foo: String| -> () { println!("{}", foo) });
}