36 lines
748 B
Rust
36 lines
748 B
Rust
//@ check-pass
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// Check tautalogically false `Copy` bounds
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#![feature(trivial_bounds)]
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#![allow(dropping_references, dropping_copy_types)]
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fn copy_string(t: String) -> String where String: Copy { //~ WARNING trivial_bounds
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is_copy(&t);
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let x = t;
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drop(t);
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t
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}
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fn copy_out_string(t: &String) -> String where String: Copy { //~ WARNING trivial_bounds
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*t
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}
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fn copy_string_with_param<T>(x: String) where String: Copy { //~ WARNING trivial_bounds
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let y = x;
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let z = x;
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}
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// Check that no reborrowing occurs
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fn copy_mut<'a>(t: &&'a mut i32) -> &'a mut i32 where for<'b> &'b mut i32: Copy {
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//~^ WARNING trivial_bounds
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is_copy(t);
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let x = *t;
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drop(x);
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x
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}
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fn is_copy<T: Copy>(t: &T) {}
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fn main() {}
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