Struct Reason 

pub struct Reason {
    pub value: Term,
    pub path: Option<String>,
    pub shape: ShapeId,
    pub severity: Severity,
    pub message: String,
    pub author_message: Option<String>,
    pub sub_reasons: Vec<Reason>,
}

A single failed atomic constraint.

Fields

value: Term

The node at which the constraint failed (a value node, or the focus).

path: Option<String>

The path from the enclosing focus to value, if the failure is value-scoped (rendered in π notation).

shape: ShapeId

The failing constraint’s arena slot (cross-references the algebra dump).

severity: Severity

sh:severity on the source shape, defaulting to sh:Violation.

message: String

Engine-generated description of the failure — always present.

author_message: Option<String>

The author’s sh:message from the source shape, if any (with {$this}/{?var} placeholders resolved). Consumers should prefer this over message when set; message remains the fallback.

sub_reasons: Vec<Reason>

Non-empty when this reason is an sh:or group: one entry per OR branch that failed, so the caller can tell “fix any one of these.”

Trait Implementations

impl Clone for Reason

fn clone(&self) -> Reason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Reason

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Reason

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Reason

impl PartialEq for Reason

fn eq(&self, other: &Reason) -> 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 Reason

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Reason