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Add regression test for #103369 #121308

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Feb 20, 2024
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14 changes: 14 additions & 0 deletions tests/ui/coherence/const-errs-dont-conflict-103369.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
// #103369: don't complain about conflicting implementations with [const error]

pub trait ConstGenericTrait<const N: u32> {}

impl ConstGenericTrait<{my_fn(1)}> for () {}

impl ConstGenericTrait<{my_fn(2)}> for () {}

const fn my_fn(v: u32) -> u32 {
panic!("Some error occurred"); //~ ERROR E0080
//~| ERROR E0080
}

fn main() {}
39 changes: 39 additions & 0 deletions tests/ui/coherence/const-errs-dont-conflict-103369.stderr
Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
error[E0080]: evaluation of constant value failed
--> $DIR/const-errs-dont-conflict-103369.rs:10:5
|
LL | panic!("Some error occurred");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'Some error occurred', $DIR/const-errs-dont-conflict-103369.rs:10:5
|
note: inside `my_fn`
--> $DIR/const-errs-dont-conflict-103369.rs:10:5
|
LL | panic!("Some error occurred");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside `<() as ConstGenericTrait<{my_fn(1)}>>::{constant#0}`
--> $DIR/const-errs-dont-conflict-103369.rs:5:25
|
LL | impl ConstGenericTrait<{my_fn(1)}> for () {}
| ^^^^^^^^
= note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0080]: evaluation of constant value failed
--> $DIR/const-errs-dont-conflict-103369.rs:10:5
|
LL | panic!("Some error occurred");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'Some error occurred', $DIR/const-errs-dont-conflict-103369.rs:10:5
|
note: inside `my_fn`
--> $DIR/const-errs-dont-conflict-103369.rs:10:5
|
LL | panic!("Some error occurred");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside `<() as ConstGenericTrait<{my_fn(2)}>>::{constant#0}`
--> $DIR/const-errs-dont-conflict-103369.rs:7:25
|
LL | impl ConstGenericTrait<{my_fn(2)}> for () {}
| ^^^^^^^^
= note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.
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