36 lines
663 B
Rust
36 lines
663 B
Rust
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// run-pass
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#![feature(const_fn_trait_ref_impls)]
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#![feature(fn_traits)]
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#![feature(unboxed_closures)]
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#![feature(const_trait_impl)]
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#![feature(const_mut_refs)]
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use std::marker::Destruct;
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const fn test(i: i32) -> i32 {
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i + 1
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}
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const fn call<F: ~const FnMut(i32) -> i32 + ~const Destruct>(mut f: F) -> F::Output {
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f(5)
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}
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const fn use_fn<F: ~const FnMut(i32) -> i32 + ~const Destruct>(mut f: F) -> F::Output {
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call(&mut f)
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}
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const fn test_fn() {}
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const fn tester<T>(_fn: T)
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where
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T: ~const Fn() + ~const Destruct,
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{
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}
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const fn main() {
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tester(test_fn);
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let test_ref = &test_fn;
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tester(test_ref);
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assert!(use_fn(test) == 6);
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}
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