Comments (2)
This is still an issue:
use prusti_contracts::*;
trait Foo {
#[ensures(result > 10)] // Failing postcondition. The verification error is currently reported here.
fn bar() -> usize;
}
struct A;
impl Foo for A {
fn bar() -> usize { // Bad implementation. The verification error should be reported here.
0
}
}
struct B;
impl Foo for B {
fn bar() -> usize { // Correct implementation
100
}
}
fn main(){}
from prusti-dev.
The failing implementation span is now added as a "note" to the error:
error: [Prusti: verification error] postcondition might not hold.
--> example.rs:4:15
|
4 | #[ensures(result > 10)] // Failing postcondition. The verification error is currently reported here.
| ^^^^^^^^^^^
|
note: the error originates here
--> example.rs:11:5
|
11 | / fn bar() -> usize { // Bad implementation. The verification error should be reported here.
12 | | 0
13 | | }
| |_____^
Do we want to improve this any further? I think reporting the failing postcondition (or conjunct) as the primary span makes sense.
from prusti-dev.
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