Struct ExprCause 

#[non_exhaustive]
pub struct ExprCause {
    pub code: ErrorCode,
    pub operator: Option<String>,
    pub expr_path: Option<String>,
    pub steps: Vec<ExprPathStep>,
    pub budget: Option<BudgetCause>,
    pub ops: Option<u64>,
}

Structured diagnostic details for an expression compilation, evaluation or budget failure.

Carried on Error::expr_cause and ErrorRecord::cause for host diagnostics without changing the sanitized wire serialization of Error or ErrorRecord.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

code: ErrorCode

Machine-stable error code from the expression engine.

operator: Option<String>

The operator that raised the error, when known.

expr_path: Option<String>

RFC 6901 JSON Pointer to the failing sub-expression in the authored rule, when known.

steps: Vec<ExprPathStep>

Structural steps from the root of the compiled expression to the failing node.

budget: Option<BudgetCause>

Budget exhaustion details when code is ErrorCode::BudgetExceeded.

ops: Option<u64>

Operations spent by this evaluation before failing, when metered.

Implementations

impl ExprCause

pub const fn ops_spent(&self) -> Option<u64>

Operations spent by this evaluation before failing, when metered.

Trait Implementations

impl Clone for ExprCause

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExprCause

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExprCause

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ExprCause

impl PartialEq for ExprCause

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ExprCause

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 ExprCause