diff options
Diffstat (limited to 'tests/ui/resolve/generic-params-from-outer-item-in-const-item.rs')
-rw-r--r-- | tests/ui/resolve/generic-params-from-outer-item-in-const-item.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/resolve/generic-params-from-outer-item-in-const-item.rs b/tests/ui/resolve/generic-params-from-outer-item-in-const-item.rs new file mode 100644 index 000000000..e5647d72c --- /dev/null +++ b/tests/ui/resolve/generic-params-from-outer-item-in-const-item.rs @@ -0,0 +1,39 @@ +// Regression test for issue #115720. +// If a const item contains generic params from an outer items, only suggest +// turning the const item generic if the feature `generic_const_items` is enabled. + +// revisions: default generic_const_items + +#![cfg_attr(generic_const_items, feature(generic_const_items))] +#![feature(generic_const_exprs)] // only used for the test case "outer struct" +#![allow(incomplete_features)] + +fn outer<T: Tr>() { // outer function + const K: u32 = T::C; + //~^ ERROR can't use generic parameters from outer item + //[generic_const_items]~| HELP try introducing a local generic parameter here +} + +impl<T> Tr for T { // outer impl block + const C: u32 = { + const I: u32 = T::C; + //~^ ERROR can't use generic parameters from outer item + //[generic_const_items]~| HELP try introducing a local generic parameter here + I + }; +} + +struct S<T: Tr>(U32<{ // outer struct + const _: u32 = T::C; + //~^ ERROR can't use generic parameters from outer item + //[generic_const_items]~| HELP try introducing a local generic parameter here + 0 +}>); + +trait Tr { + const C: u32; +} + +struct U32<const N: u32>; + +fn main() {} |