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Test drop_impl_concrete_type_param

Source location: tests/drop.rs:154

#[test]
fn drop_impl_concrete_type_param() {
    FormalityTest::new(crates![
        crate Foo {
            struct MyStruct<T> {
                value: T,
            }

            impl Drop for MyStruct<u32> {}
        }
    ])
    .err(expect_test::expect![[r#"
        crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: MyStruct<!ty_0> = MyStruct<u32>, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_normalize.rs:54:1: no applicable rules for prove_normalize_via { goal: MyStruct<!ty_0>, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: !ty_0 = u32, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_normalize.rs:54:1: no applicable rules for prove_normalize_via { goal: !ty_0, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_normalize.rs:54:1: no applicable rules for prove_normalize_via { goal: u32, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_normalize.rs:54:1: no applicable rules for prove_normalize_via { goal: MyStruct<u32>, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: u32 = !ty_0, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_normalize.rs:54:1: no applicable rules for prove_normalize_via { goal: u32, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_normalize.rs:54:1: no applicable rules for prove_normalize_via { goal: !ty_0, via: Drop(MyStruct<!ty_0>), assumptions: {Drop(MyStruct<!ty_0>)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        the rule "trait implied bound" at (prove_wc.rs) failed because
          expression evaluated to an empty collection: `decls.trait_invariants()`"#]])
}

Rules proved (0)

This test records no positive coverage.

Premises failed (13)

The last column links to the premise’s page when the judgment view counts this failure against that premise. It does not when the premise is read as infallible, or when the failure was blamed inside a multi-line premise that carries no record on its own first line.

JudgmentRulePremiseAll tests of this premise
check_drop_impl_always_applicableDrop impl is always applicablesuper::prove_goal(&program, &env, &adt_bound.whe… (line 358)3 tests
check_all_cratescheck all prefixesfor_all(i in 0..crates.len()) (let program = cra… (line 51, blamed at line 53)not counted by the judgment view
check_cratecheck cratefor_all(item in &c.items) (check_crate_item(prog… (line 72, blamed at line 73)not counted by the judgment view
check_crate_itemtrait implcheck_drop_impl_always_applicable(program, v, cr… (line 194)5 tests
prove_eqsymmetricprove_eq(decls, env, assumptions, r, l) => env_c (line 38)15 tests
prove_eqrigidprove(decls, env, assumptions, Wcs::all_eq(a_par… (line 47)1 test
prove_eqnormalize-lprove_normalize(decls, env, assumptions, x) => C… (line 68)15 tests
prove_normalizenormalize-via-assumptionprove_normalize_via(decls, env, assumptions, a, … (line 32)10 tests
prove_wcassumptionprove_via(decls, env, assumptions, a, goal) => c (line 48)21 tests
prove_wcpositive implprove(decls, env, co_assumptions, Wcs::all_eq(&t… (line 73)7 tests
prove_wctrait implied boundti in decls.trait_invariants() (line 109)14 tests
prove_wceqprove_eq(decls, env, assumptions, a, b) => c (line 119)15 tests
prove_wc_listsomeprove_wc(decls, env, assumptions, wc0) => c (line 26)42 tests

Proof trees

Failed proof tree