20 lines
497 B
Rust
20 lines
497 B
Rust
// run-pass
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#![allow(unused_braces)]
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#![feature(box_syntax)]
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fn test_generic<T, F>(expected: Box<T>, eq: F) where T: Clone, F: FnOnce(Box<T>, Box<T>) -> bool {
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let actual: Box<T> = { expected.clone() };
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assert!(eq(expected, actual));
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}
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fn test_box() {
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fn compare_box(b1: Box<bool>, b2: Box<bool>) -> bool {
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println!("{}", *b1);
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println!("{}", *b2);
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return *b1 == *b2;
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}
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test_generic::<bool, _>(box true, compare_box);
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}
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pub fn main() { test_box(); }
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