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Judgment check_neg_trait_impl at crates/formality-rust/src/check/impls.rs:45

Signature:

check_neg_trait_impl(program: Program, trait_impl: NegTraitImpl,) => ()

The number on each rule’s conclusion is positive coverage; the number on each premise is negative coverage. Click a number to browse the tests.

check_neg_trait_impl
LineCoverageSource
532(fail "negative impls cannot be unsafe")
──────── ("check_neg_trait_impl")
553(check_neg_trait_impl(program, NegTraitImpl { binder: _, safety: Safety::Unsafe }) => ())
check_neg_trait_impl
LineCoverageSource
59N/A(let (env, bound_data) = Env::default().instantiate_universally(binder))
60N/A(let NegTraitImplBoundData { trait_id, self_ty, trait_parameters, where_clauses } = bound_data)
61N/A(let trait_ref = trait_id.with(self_ty, trait_parameters))
62(super::where_clauses::prove_where_clauses_well_formed(program, &env, &where_clauses, &where_clauses) => ())
63(super::prove_goal(program, &env, &where_clauses, Predicate::not_implemented(&trait_ref)) => ())
──────── ("check_neg_trait_impl")
653(check_neg_trait_impl(program, NegTraitImpl { binder, safety: Safety::Safe }) => ())