diff options
Diffstat (limited to 'src/test/ui/const-generics/issues/issue-71381.rs')
-rw-r--r-- | src/test/ui/const-generics/issues/issue-71381.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/issues/issue-71381.rs b/src/test/ui/const-generics/issues/issue-71381.rs new file mode 100644 index 000000000..66f819dbe --- /dev/null +++ b/src/test/ui/const-generics/issues/issue-71381.rs @@ -0,0 +1,36 @@ +// revisions: full min +#![cfg_attr(full, feature(adt_const_params))] +#![cfg_attr(full, allow(incomplete_features))] + +struct Test(*const usize); + +type PassArg = (); + +unsafe extern "C" fn pass(args: PassArg) { + println!("Hello, world!"); +} + +impl Test { + pub fn call_me<Args: Sized, const IDX: usize, const FN: unsafe extern "C" fn(Args)>(&self) { + //~^ ERROR: using function pointers as const generic parameters is forbidden + //~| ERROR: the type of const parameters must not depend on other generic parameters + self.0 = Self::trampiline::<Args, IDX, FN> as _ + } + + unsafe extern "C" fn trampiline< + Args: Sized, + const IDX: usize, + const FN: unsafe extern "C" fn(Args), + //~^ ERROR: using function pointers as const generic parameters is forbidden + //~| ERROR: the type of const parameters must not depend on other generic parameters + >( + args: Args, + ) { + FN(args) + } +} + +fn main() { + let x = Test(); + x.call_me::<PassArg, 30, pass>() +} |