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 | 5 | (prove_after(decls, c, assumptions, &t.where_clauses) => c) |
| ──────── ("ADT") | ||
| 66 | 46 | (prove_wf(decls, env, assumptions, RigidTy { name: RigidName::AdtId(adt_id), parameters }) => c) |
5 tests failed proving this premise:
Source location: crates/formality-rust/src/prove/test/adt_wf.rs:44 (all coverage from this test)
#[test]
fn not_well_formed_adt() {
let assumptions: Predicates = Predicates::t();
let goal: Parameter = term("X<u64>");
prove(
decls(),
Env::default(),
assumptions,
AtomicPredicate::WellFormed(goal),
)
.assert_err(expect![[r#"
crates/formality-rust/src/prove/prove_via.rs:9:1: 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:55:1: 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:55:1: 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_predicate.rs) failed because
expression evaluated to an empty collection: `decls.trait_invariants()`"#]]);
}Failed proof tree
prove failedadt_wf.rs:38args
ruleadt_wf.rs:38prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "parameter well formed"prove_predicate.rs:149prove_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_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "positive impl"prove_predicate.rs:71prove failedprove_predicate.rs:71args
ruleprove_predicate.rs:71prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "assumption"prove_predicate.rs:48prove_via failedprove_via.rs:9args
rule "eq"prove_predicate.rs:115prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:22args
rule "normalize-via-assumption"prove_normalize.rs:36prove_normalize_via failedprove_normalize.rs:55args
rule "symmetric"prove_eq.rs:38prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:22args
rule "normalize-via-assumption"prove_normalize.rs:36prove_normalize_via failedprove_normalize.rs:55args
rule "trait implied bound"prove_predicate.rs:106 (failed: empty_collection)
Source location: tests/drop.rs:83 (all coverage from this test)
Failed proof tree
check_all_crates failedmod.rs:42args
rule "check all prefixes"mod.rs:54check_crate failedmod.rs:61args
rule "check crate"mod.rs:74check_crate_item failedmod.rs:179rule "trait impl"mod.rs:194check_trait_impl failedimpls.rs:14rule "check_trait_impl"impls.rs:36check_trait_impl_item failedimpls.rs:151rule "fn in impl"impls.rs:163check_fn_in_impl failedimpls.rs:176rule "check_fn_in_impl"impls.rs:194check_fn failedfns.rs:31args
rule "check fn"fns.rs:50prove failedfunction.rs:250args
rulefunction.rs:250prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "parameter well formed"prove_predicate.rs:149prove_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_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "assumption"prove_predicate.rs:48prove_via failedprove_via.rs:9args
rule "trait implied bound"prove_predicate.rs:106 (failed: empty_collection)
Source location: tests/mir_typeck.rs:321 (all coverage from this test)
fn foo() -> () {
let s2: S2<S1>;
}Failed proof tree
check_all_crates failedmod.rs:42args
rule "check all prefixes"mod.rs:54check_crate failedmod.rs:61args
rule "check crate"mod.rs:74check_crate_item failedmod.rs:179rule "free fn"mod.rs:207check_free_fn failedfns.rs:14args
rule "check free fn"fns.rs:24check_fn failedfns.rs:31args
rule "check fn"fns.rs:54check_fn_body failedfns.rs:61args
rule "expr fn body"fns.rs:89borrow_check failednll.rs:124args
rule "borrow_check"nll.rs:135borrow_check_block failednll.rs:142rule "basic block"nll.rs:157borrow_check_statement failednll.rs:174args
rule "let-no-init"nll.rs:203prove failedfunction.rs:250args
rulefunction.rs:250prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "parameter well formed"prove_predicate.rs:149prove_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_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "trait implied bound"prove_predicate.rs:106 (failed: empty_collection)
Source location: tests/references.rs:13 (all coverage from this test)
Failed proof tree
check_all_crates failedmod.rs:42args
rule "check all prefixes"mod.rs:54check_crate failedmod.rs:61args
rule "check crate"mod.rs:74check_crate_item failedmod.rs:179args
rule "free fn"mod.rs:207check_free_fn failedfns.rs:14args
rule "check free fn"fns.rs:24check_fn failedfns.rs:31args
rule "check fn"fns.rs:52prove failedfunction.rs:250args
rulefunction.rs:250prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "parameter well formed"prove_predicate.rs:149prove_wf failedprove_wf.rs:11args
rule "references"prove_wf.rs:34prove failedprove_wf.rs:104args
ruleprove_wf.rs:104prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "parameter well formed"prove_predicate.rs:149prove_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_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "assumption"prove_predicate.rs:48prove_via failedprove_via.rs:9args
rule "trait implied bound"prove_predicate.rs:106 (failed: empty_collection)
Source location: tests/well_formed_trait_ref.rs:37 (all coverage from this test)
#[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:9:1: 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:9:1: 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_predicate.rs) failed because
expression evaluated to an empty collection: `decls.trait_invariants()`"#]])
}Failed proof tree
check_all_crates failedmod.rs:42args
rule "check all prefixes"mod.rs:54check_crate failedmod.rs:61args
rule "check crate"mod.rs:74check_crate_item failedmod.rs:179rule "adt"mod.rs:201check_adt failedadts.rs:11args
rule "check adt"adts.rs:20prove failedfunction.rs:250args
rulefunction.rs:250prove_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "trait well formed"prove_predicate.rs:127prove_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_predicate_list failedprove_predicate_list.rs:8args
rule "some"prove_predicate_list.rs:26prove_predicate failedprove_predicate.rs:22args
rule "assumption"prove_predicate.rs:48prove_via failedprove_via.rs:9args
rule "trait implied bound"prove_predicate.rs:106 (failed: empty_collection)