mirror of https://github.com/rust-lang/rust
55 lines
3.4 KiB
Rust
55 lines
3.4 KiB
Rust
//@ revisions: min
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// we use a single revision because this should have a `full` revision
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// but right now that ICEs and I(@BoxyUwU) could not get stderr normalization to work
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// #![cfg_attr(full, feature(generic_const_exprs))]
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// #![cfg_attr(full, allow(incomplete_features))]
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const fn foo<T>() -> usize { std::mem::size_of::<T>() }
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const fn bar<const N: usize>() -> usize { N }
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const fn faz<'a>(_: &'a ()) -> usize { 13 }
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const fn baz<'a>(_: &'a ()) -> usize where &'a (): Sized { 13 }
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struct Foo<const N: usize>;
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fn test<'a, 'b, T, const N: usize>() where &'b (): Sized {
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let _: [u8; foo::<T>()]; //[min]~ ERROR generic parameters may not
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let _: [u8; bar::<N>()]; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR unresolved item provided when a constant was expected
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let _: [u8; faz::<'a>(&())]; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _: [u8; baz::<'a>(&())]; //[min]~ ERROR generic parameters may not
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let _: [u8; faz::<'b>(&())]; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _: [u8; baz::<'b>(&())]; //[min]~ ERROR generic parameters may not
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let _ = [0; foo::<T>()]; //[min]~ ERROR constant expression depends on a generic parameter
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let _ = [0; bar::<N>()]; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR unresolved item provided when a constant was expected
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let _ = [0; faz::<'a>(&())]; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _ = [0; baz::<'a>(&())]; //[min]~ ERROR generic parameters may not
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let _ = [0; faz::<'b>(&())]; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _ = [0; baz::<'b>(&())]; //[min]~ ERROR generic parameters may not
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let _: Foo<{ foo::<T>() }>; //[min]~ ERROR generic parameters may not
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let _: Foo<{ bar::<N>() }>; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR unresolved item provided when a constant was expected
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let _: Foo<{ faz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _: Foo<{ baz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not
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let _: Foo<{ faz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _: Foo<{ baz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not
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let _ = Foo::<{ foo::<T>() }>; //[min]~ ERROR generic parameters may not
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let _ = Foo::<{ bar::<N>() }>; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR unresolved item provided when a constant was expected
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let _ = Foo::<{ faz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _ = Foo::<{ baz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not
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let _ = Foo::<{ faz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not
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//[min]~^ ERROR cannot specify lifetime arguments
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let _ = Foo::<{ baz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not
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}
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fn main() {}
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