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Deny defaults for higher-ranked generic parameters
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// Check that defaults for generic parameters in `for<...>` binders are | ||
// syntactically valid. See also PR #119042. | ||
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// check-pass | ||
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macro_rules! a { ($ty:ty) => {} } | ||
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a! { for<T = &i32> fn() } | ||
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fn main() {} |
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16 changes: 16 additions & 0 deletions
16
tests/ui/traits/non_lifetime_binders/binder-defaults-112547.rs
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#![feature(non_lifetime_binders)] | ||
//~^ WARN the feature `non_lifetime_binders` is incomplete | ||
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pub fn bar() | ||
where | ||
for<const N: usize = { | ||
(||1usize)() | ||
}> V: IntoIterator | ||
//~^^^ ERROR defaults for generic parameters are not allowed in `for<...>` binders | ||
//~^^ ERROR cannot find type `V` in this scope | ||
{ | ||
} | ||
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fn main() { | ||
bar(); | ||
} |
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12 changes: 6 additions & 6 deletions
12
.../non_lifetime_binders/issue-118697.stderr → ...ime_binders/binder-defaults-118697.stderr
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12 changes: 12 additions & 0 deletions
12
tests/ui/traits/non_lifetime_binders/binder-defaults-119489.rs
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#![feature(non_lifetime_binders, generic_const_exprs)] | ||
//~^ WARN the feature `non_lifetime_binders` is incomplete | ||
//~| WARN the feature `generic_const_exprs` is incomplete | ||
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fn fun() | ||
where | ||
for<T = (), const N: usize = 1> ():, | ||
//~^ ERROR defaults for generic parameters are not allowed in `for<...>` binders | ||
//~| ERROR defaults for generic parameters are not allowed in `for<...>` binders | ||
{} | ||
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fn main() {} |
31 changes: 31 additions & 0 deletions
31
tests/ui/traits/non_lifetime_binders/binder-defaults-119489.stderr
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warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes | ||
--> $DIR/binder-defaults-119489.rs:1:12 | ||
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LL | #![feature(non_lifetime_binders, generic_const_exprs)] | ||
| ^^^^^^^^^^^^^^^^^^^^ | ||
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= note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information | ||
= note: `#[warn(incomplete_features)]` on by default | ||
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warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes | ||
--> $DIR/binder-defaults-119489.rs:1:34 | ||
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LL | #![feature(non_lifetime_binders, generic_const_exprs)] | ||
| ^^^^^^^^^^^^^^^^^^^ | ||
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= note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information | ||
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error: defaults for generic parameters are not allowed in `for<...>` binders | ||
--> $DIR/binder-defaults-119489.rs:7:9 | ||
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LL | for<T = (), const N: usize = 1> ():, | ||
| ^^^^^^ | ||
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error: defaults for generic parameters are not allowed in `for<...>` binders | ||
--> $DIR/binder-defaults-119489.rs:7:17 | ||
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LL | for<T = (), const N: usize = 1> ():, | ||
| ^^^^^^^^^^^^^^^^^^ | ||
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error: aborting due to 2 previous errors; 2 warnings emitted | ||
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