mirror of https://github.com/rust-lang/rust
16 lines
504 B
Rust
16 lines
504 B
Rust
#![feature(fn_traits)]
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#![feature(unboxed_closures)]
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#![feature(tuple_trait)]
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fn foo<F: Fn<T>, T:std::marker::Tuple>(f: Option<F>, t: T) {
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let y = (f.unwrap()).call(t);
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}
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fn main() {
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foo::<fn() -> str, _>(None, ());
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//~^ ERROR the size for values of type `str` cannot be known at compilation time
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foo::<for<'a> fn(&'a ()) -> (dyn std::fmt::Display + 'a), _>(None, (&(),));
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//~^ ERROR the size for values of type `(dyn std::fmt::Display + 'a)` cannot be known at compilation time
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}
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