| #![crate_type = "lib"] |
| #![feature(staged_api, rustc_attrs)] |
| #![stable(feature = "foo", since = "1.0.0")] |
| |
| #[stable(feature = "foo", since = "1.0.0")] |
| #[rustc_const_unstable(feature = "const_foo", issue = "none")] |
| pub fn foo() {} |
| //~^ ERROR require the function or method to be `const` |
| |
| #[stable(feature = "bar", since = "1.0.0")] |
| #[rustc_const_stable(feature = "const_bar", since = "1.0.0")] |
| pub fn bar() {} |
| //~^ ERROR require the function or method to be `const` |
| |
| #[stable(feature = "potato", since = "1.0.0")] |
| pub struct Potato; |
| |
| impl Potato { |
| #[stable(feature = "salad", since = "1.0.0")] |
| #[rustc_const_unstable(feature = "const_salad", issue = "none")] |
| pub fn salad(&self) -> &'static str { "mmmmmm" } |
| //~^ ERROR require the function or method to be `const` |
| |
| #[stable(feature = "roasted", since = "1.0.0")] |
| #[rustc_const_unstable(feature = "const_roasted", issue = "none")] |
| pub fn roasted(&self) -> &'static str { "mmmmmmmmmm" } |
| //~^ ERROR require the function or method to be `const` |
| } |
| |
| #[stable(feature = "bar", since = "1.0.0")] |
| #[rustc_const_stable(feature = "const_bar", since = "1.0.0")] |
| pub extern "C" fn bar_c() {} |
| //~^ ERROR require the function or method to be `const` |
| |
| #[stable(feature = "foo", since = "1.0.0")] |
| #[rustc_const_unstable(feature = "const_foo", issue = "none")] |
| pub extern "C" fn foo_c() {} |
| //~^ ERROR require the function or method to be `const` |
| |
| |
| #[stable(feature = "foobar", since = "1.0.0")] |
| #[rustc_const_unstable(feature = "foobar_const", issue = "none")] |
| pub const fn foobar() {} |
| |
| #[stable(feature = "barfoo", since = "1.0.0")] |
| #[rustc_const_stable(feature = "barfoo_const", since = "1.0.0")] |
| pub const fn barfoo() {} |
| |
| // `rustc_const_stable` also requires the function to be stable. |
| |
| #[rustc_const_stable(feature = "barfoo_const", since = "1.0.0")] |
| const fn barfoo_unmarked() {} |
| //~^ ERROR can only be applied to functions that are declared `#[stable]` |
| |
| #[unstable(feature = "unstable", issue = "none")] |
| #[rustc_const_stable(feature = "barfoo_const", since = "1.0.0")] |
| pub const fn barfoo_unstable() {} |
| //~^ ERROR can only be applied to functions that are declared `#[stable]` |
