3 #![cfg_attr(full, feature(generic_const_exprs))]
4 #![cfg_attr(full, allow(incomplete_features))]
6 const fn foo<T>() -> usize { std::mem::size_of::<T>() }
7 const fn bar<const N: usize>() -> usize { N }
8 const fn faz<'a>(_: &'a ()) -> usize { 13 }
9 const fn baz<'a>(_: &'a ()) -> usize where &'a (): Sized { 13 }
11 struct Foo<const N: usize>;
12 fn test<'a, 'b, T, const N: usize>() where &'b (): Sized {
13 let _: [u8; foo::<T>()]; //[min]~ ERROR generic parameters may not
14 //[full]~^ ERROR unconstrained generic constant
15 let _: [u8; bar::<N>()]; //[min]~ ERROR generic parameters may not
16 //[min]~^ ERROR unresolved item provided when a constant was expected
17 //[full]~^^ ERROR unconstrained generic constant
18 let _: [u8; faz::<'a>(&())]; //[min]~ ERROR a non-static lifetime
19 //~^ ERROR cannot specify lifetime arguments
20 let _: [u8; baz::<'a>(&())]; //[min]~ ERROR a non-static lifetime
21 let _: [u8; faz::<'b>(&())]; //[min]~ ERROR a non-static lifetime
22 //~^ ERROR cannot specify lifetime arguments
23 let _: [u8; baz::<'b>(&())]; //[min]~ ERROR a non-static lifetime
25 let _ = [0; foo::<T>()]; //[min]~ ERROR constant expression depends on a generic parameter
26 //[full]~^ ERROR unconstrained generic constant
27 let _ = [0; bar::<N>()]; //[min]~ ERROR generic parameters may not
28 //[min]~^ ERROR unresolved item provided when a constant was expected
29 //[full]~^^ ERROR unconstrained generic constant
30 let _ = [0; faz::<'a>(&())]; //[min]~ ERROR a non-static lifetime
31 //~^ ERROR cannot specify lifetime arguments
32 let _ = [0; baz::<'a>(&())]; //[min]~ ERROR a non-static lifetime
33 let _ = [0; faz::<'b>(&())]; //[min]~ ERROR a non-static lifetime
34 //~^ ERROR cannot specify lifetime arguments
35 let _ = [0; baz::<'b>(&())]; //[min]~ ERROR a non-static lifetime
36 let _: Foo<{ foo::<T>() }>; //[min]~ ERROR generic parameters may not
37 //[full]~^ ERROR unconstrained generic constant
38 let _: Foo<{ bar::<N>() }>; //[min]~ ERROR generic parameters may not
39 //[min]~^ ERROR unresolved item provided when a constant was expected
40 //[full]~^^ ERROR unconstrained generic constant
41 let _: Foo<{ faz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime
42 //~^ ERROR cannot specify lifetime arguments
43 let _: Foo<{ baz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime
44 let _: Foo<{ faz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime
45 //~^ ERROR cannot specify lifetime arguments
46 let _: Foo<{ baz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime
47 let _ = Foo::<{ foo::<T>() }>; //[min]~ ERROR generic parameters may not
48 //[full]~^ ERROR unconstrained generic constant
49 let _ = Foo::<{ bar::<N>() }>; //[min]~ ERROR generic parameters may not
50 //[min]~^ ERROR unresolved item provided when a constant was expected
51 //[full]~^^ ERROR unconstrained generic constant
52 let _ = Foo::<{ faz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime
53 //~^ ERROR cannot specify lifetime arguments
54 let _ = Foo::<{ baz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime
55 let _ = Foo::<{ faz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime
56 //~^ ERROR cannot specify lifetime arguments
57 let _ = Foo::<{ baz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime