Negative coverage: prove_wf / ADT / premise prove_after(decls, c, assumptions, &t.where_clauses) => c
Premise at line 64. Observed failure causes: failed_judgment.
ADT| Line | Coverage | Source |
|---|---|---|
| 61 | ✗ | (for_all(decls, env, assumptions, parameters, &prove_wf_recursive) => c) |
| 62 | ✗ | (let t = decls.program().adt_item_named(adt_id)?.to_adt()) |
| 63 | N/A | (let t = t.binder.instantiate_with(parameters).unwrap()) |
| 64 | 4 | (prove_after(decls, c, assumptions, &t.where_clauses) => c) |
| ──────── ("ADT") | ||
| 66 | 50 | (prove_wf(decls, env, assumptions, RigidTy { name: RigidName::AdtId(adt_id), parameters }) => c) |
4 tests failed proving this premise:
Source location: crates/formality-rust/src/prove/test/adt_wf.rs:44
#[test]
fn not_well_formed_adt() {
let assumptions: Wcs = Wcs::t();
let goal: Parameter = term("X<u64>");
prove(
decls(),
Env::default(),
assumptions,
Relation::WellFormed(goal),
)
.assert_err(expect![[r#"
crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: u64 = u32, via: Foo(u64), assumptions: {Foo(u64)}, env: Env { variables: [], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove_normalize.rs:56:1: no applicable rules for prove_normalize_via { goal: u64, via: Foo(u64), assumptions: {Foo(u64)}, env: Env { variables: [], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove_normalize.rs:56:1: no applicable rules for prove_normalize_via { goal: u32, via: Foo(u64), assumptions: {Foo(u64)}, env: Env { variables: [], 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()`"#]]);
}Failed proof tree
prove failedadt_wf.rs:38args
ruleadt_wf.rs:38prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "parameter well formed"prove_wc.rs:159prove_wf failedprove_wf.rs:11args
rule "ADT"prove_wf.rs:64prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "positive impl"prove_wc.rs:79prove failedprove_wc.rs:79args
ruleprove_wc.rs:79prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "assumption - relation"prove_wc.rs:54prove_via failedprove_via.rs:8args
rule "eq"prove_wc.rs:125prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:20args
rule "normalize-via-assumption"prove_normalize.rs:34prove_normalize_via failedprove_normalize.rs:56args
rule "symmetric"prove_eq.rs:38prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:20args
rule "normalize-via-assumption"prove_normalize.rs:34prove_normalize_via failedprove_normalize.rs:56args
rule "trait implied bound"prove_wc.rs:115 (failed: empty_collection)
Source location: tests/mir_typeck.rs:266
fn foo() -> () {
let s2: S2<S1>;
}Failed proof tree
check_all_crates failedmod.rs:41args
rule "check all prefixes"mod.rs:53check_crate failedmod.rs:60args
rule "check crate"mod.rs:73check_crate_item failedmod.rs:178rule "free fn"mod.rs:206check_free_fn failedfns.rs:14args
rule "check free fn"fns.rs:24check_fn failedfns.rs:31args
rule "check fn"fns.rs:55check_fn_body failedfns.rs:62args
rule "expr fn body"fns.rs:90borrow_check failednll.rs:127args
rule "borrow_check"nll.rs:138borrow_check_block failednll.rs:145rule "basic block"nll.rs:160borrow_check_statement failednll.rs:177args
rule "let"nll.rs:189prove failedfunction.rs:250args
rulefunction.rs:250prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "parameter well formed"prove_wc.rs:159prove_wf failedprove_wf.rs:11args
rule "ADT"prove_wf.rs:64prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "trait implied bound"prove_wc.rs:115 (failed: empty_collection)
Source location: tests/references.rs:13
Failed proof tree
check_all_crates failedmod.rs:41args
rule "check all prefixes"mod.rs:53check_crate failedmod.rs:60args
rule "check crate"mod.rs:73check_crate_item failedmod.rs:178args
rule "free fn"mod.rs:206check_free_fn failedfns.rs:14args
rule "check free fn"fns.rs:24check_fn failedfns.rs:31args
rule "check fn"fns.rs:53prove failedfunction.rs:250args
rulefunction.rs:250prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "parameter well formed"prove_wc.rs:159prove_wf failedprove_wf.rs:11args
rule "references"prove_wf.rs:34prove failedprove_wf.rs:104args
ruleprove_wf.rs:104prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "parameter well formed"prove_wc.rs:159prove_wf failedprove_wf.rs:11args
rule "ADT"prove_wf.rs:64prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "assumption - predicate"prove_wc.rs:48prove_via failedprove_via.rs:8args
rule "trait implied bound"prove_wc.rs:115 (failed: empty_collection)
Source location: tests/well_formed_trait_ref.rs:37
#[test]
fn missing_dependent_where_clause() {
FormalityTest::new(crates![crate foo {
trait Trait1 {}
trait Trait2 {}
struct S1<T> where T: Trait1 {
dummy: T,
}
struct S2<T> where S1<T> : Trait2 {
dummy: T,
}
}])
.err(expect_test::expect![[r#"
crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: @ WellFormedTraitRef(Trait2(S1<!ty_0>)), via: Trait2(S1<!ty_0>), assumptions: {Trait2(S1<!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: Trait1(!ty_0), via: Trait2(S1<!ty_0>), assumptions: {Trait2(S1<!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()`"#]])
}Failed proof tree
check_all_crates failedmod.rs:41args
rule "check all prefixes"mod.rs:53check_crate failedmod.rs:60args
rule "check crate"mod.rs:73check_crate_item failedmod.rs:178rule "adt"mod.rs:200check_adt failedadts.rs:11args
rule "check adt"adts.rs:21prove failedfunction.rs:250args
rulefunction.rs:250prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "trait well formed"prove_wc.rs:137prove_wf failedprove_wf.rs:11args
rule "ADT"prove_wf.rs:64prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "assumption - predicate"prove_wc.rs:48prove_via failedprove_via.rs:8args
rule "trait implied bound"prove_wc.rs:115 (failed: empty_collection)