Struct PassDetail 

pub struct PassDetail {
    pub name: String,
    pub comparator: Cow<'static, str>,
    pub value: String,
    pub expected: Option<String>,
    pub phase: Option<Cow<'static, str>>,
}

Structured record of a single passing claim — the positive counterpart to AssertDetail. Populated by Verdict’s record_pass_unary / record_pass_binary helpers at every comparator’s pass arm so the auto-repro renderer (and any other consumer that wants per-claim fidelity) can iterate passes alongside fails.

Carries the same shape primitives every comparator naturally has at the pass site: the claim’s name, a short comparator token ("eq", "ge", "is_finite", …), the value that was compared (formatted via the comparator’s Display), and an optional expected for binary comparators. Unary comparators (e.g. is_finite, set_is_empty) leave expected = None.

comparator is a wire-canonical token from COMPARATOR_VOCABULARY, NOT a string derived from the builder method name. Operator-named comparators map to operator-canonical tokens (eq/ne/ge/le/lt/gt) regardless of whether the invoking builder method is eq or at_least — tokens are the stable wire vocabulary, methods are the ergonomic surface. A renderer that wants pretty operators can map ge → >= on output.

Container-bound comparators prefix their tokens with the container type name (set_*, sequence_*) to disambiguate same- named operations across surfaces (contains is ambiguous between sets and sequences, so prefix; is_finite is scalar-only, so bare). The prefix policy is part of the vocabulary contract.

comparator is a Cow<'static, str> so call sites passing a &'static str literal — the universal case for built-in comparators — pay zero allocation; runtime-built comparator labels store as Cow::Owned. The same Cow shape applies to phase (set by the per-step RAII guard’s static label in the common case).

Structurally distinct from AssertDetail: PassDetail carries a uniform per-claim shape (every comparator emits name + comparator + value + expected), while AssertDetail uses a kind: DetailKind category enum because failure / note / warning shapes diverge. Forcing them to one mold would either lose comparator-typed slots (collapse to kind+message) or invent a Pass variant of DetailKind that doesn’t carry the typed slots cleanly. Keeping them separate is a deliberate design choice, not an inconsistency.

Distinct from a one-line tracing log — the structured form is the data path the auto-repro renderer reads to compose the bracketed phase output that surfaces passing context alongside failing assertions. The tracing log path remains the operator-facing surface for --nocapture runs.

Fields

name: String

comparator: Cow<'static, str>

value: String

expected: Option<String>

phase: Option<Cow<'static, str>>

Scenario phase the claim was made under. None outside any PhaseGuard scope; Some(label) when the active-phase thread-local has been installed at the scenario-driver step loop entry. The auto-repro renderer groups passes by this field to compose the bracketed ==== PHASE N: <label> ==== output. Cow<'static, str> so the common case (the RAII guard’s static &'static str label) pays zero allocation.

Implementations

impl PassDetail

pub fn binary( name: impl Into<String>, comparator: impl Into<Cow<'static, str>>, value: impl Into<String>, expected: impl Into<String>, ) -> Self

Construct a binary-comparator pass record (e.g. eq, ge, in_range). Both value and expected are stringified via std::fmt::Display at the call site so the struct is T-agnostic on the wire. See COMPARATOR_VOCABULARY for the full set of canonical tokens.

pub fn unary( name: impl Into<String>, comparator: impl Into<Cow<'static, str>>, value: impl Into<String>, ) -> Self

Construct a unary-comparator pass record (e.g. is_finite, set_is_empty). expected is left None — the comparator name alone carries the meaning. See COMPARATOR_VOCABULARY for the full set of canonical tokens.

pub fn with_phase(self, phase: impl Into<Cow<'static, str>>) -> Self

Builder-style setter for Self::phase. Consumes self, stamps the phase label, returns the updated value so per-phase test fixtures and the PhaseGuard RAII helper can chain PassDetail::binary(...).with_phase("step_0"). &'static str literals stay Cow::Borrowed (zero alloc); runtime-built String becomes Cow::Owned.

Trait Implementations

impl Clone for PassDetail

fn clone(&self) -> PassDetail

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PassDetail

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PassDetail

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PassDetail

fn eq(&self, other: &PassDetail) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for PassDetail

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PassDetail

impl StructuralPartialEq for PassDetail