2019-07-26 16:54:25 -05:00
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// run-pass
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2017-08-05 12:51:21 -05:00
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// Test that `Clone` is correctly implemented for builtin types.
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// Also test that cloning an array or a tuple is done right, i.e.
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// each component is cloned.
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fn test_clone<T: Clone>(arg: T) {
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let _ = arg.clone();
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}
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fn foo() { }
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#[derive(Debug, PartialEq, Eq)]
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struct S(i32);
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impl Clone for S {
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fn clone(&self) -> Self {
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S(self.0 + 1)
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}
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}
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fn main() {
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test_clone(foo);
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test_clone([1; 56]);
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test_clone((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1));
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let a = [S(0), S(1), S(2)];
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let b = [S(1), S(2), S(3)];
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assert_eq!(b, a.clone());
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let a = (
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(S(1), S(0)),
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(
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(S(0), S(0), S(1)),
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S(0)
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)
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);
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let b = (
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(S(2), S(1)),
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(
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(S(1), S(1), S(2)),
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S(1)
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)
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);
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assert_eq!(b, a.clone());
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}
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