28 lines
849 B
Rust
28 lines
849 B
Rust
// Test that the unboxed closure sugar can be used with an arbitrary
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// struct type and that it is equivalent to the same syntax using
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// angle brackets. This test covers only simple types and in
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// particular doesn't test bound regions.
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#![feature(unboxed_closures)]
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#![allow(dead_code)]
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use std::marker;
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trait Foo<T> {
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type Output;
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fn dummy(&self, t: T);
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}
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trait Eq<X: ?Sized> { }
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impl<X: ?Sized> Eq<X> for X { }
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fn eq<A: ?Sized,B: ?Sized +Eq<A>>() { }
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fn main() {
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eq::< dyn for<'a> Foo<(&'a isize,), Output=&'a isize>,
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dyn Foo(&isize) -> &isize >();
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eq::< dyn for<'a> Foo<(&'a isize,), Output=(&'a isize, &'a isize)>,
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dyn Foo(&isize) -> (&isize, &isize) >();
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let _: dyn Foo(&isize, &usize) -> &usize; //~ ERROR missing lifetime specifier
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}
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