Struct NumericCoercionConfig 

#[non_exhaustive]
pub struct NumericCoercionConfig {
    pub empty_string_to_zero: bool,
    pub null_to_zero: bool,
    pub bool_to_number: bool,
    pub reject_non_numeric: bool,
}

Knobs for the implicit value→number coercions arithmetic and comparison perform on non-numeric arguments.

See EvaluationConfig::numeric_coercion for how these flags interact when more than one would fire on the same value (short answer: reject_non_numeric overrides everything else; the rest are type-disjoint so they don’t conflict in practice).

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.

empty_string_to_zero: bool

"" → 0 in numeric context. Default: true. Disable to make {"+": ["", 1]} fail with a NaN error instead of returning 1.

null_to_zero: bool

null → 0 in numeric context. Default: true.

bool_to_number: bool

true → 1, false → 0 in numeric context. Default: true.

reject_non_numeric: bool

Reject non-numeric values: a non-numeric value is a type error. Default: false. When true, this flag overrides every other flag in this struct — empty strings, nulls, and booleans all raise rather than coerce. Acts as a kill switch for the rest of the coercion knobs in this struct.

Note: earlier versions also declared a reserved undefined_to_zero flag here. It never had an effect (JSONLogic does not distinguish a missing key from an explicit null — the reference missing operator treats {"a": null} exactly like {}) and it has been removed. A missing var already coerces to 0 under the default Self::null_to_zero = true.

Implementations

impl NumericCoercionConfig

pub fn with_empty_string_to_zero(self, value: bool) -> Self

Set Self::empty_string_to_zero.

pub fn with_null_to_zero(self, value: bool) -> Self

Set Self::null_to_zero.

pub fn with_bool_to_number(self, value: bool) -> Self

Set Self::bool_to_number.

pub fn with_reject_non_numeric(self, value: bool) -> Self

Set Self::reject_non_numeric. When true, this flag overrides every other flag — empty strings, nulls, and booleans all raise rather than coerce.

Trait Implementations

impl Clone for NumericCoercionConfig

fn clone(&self) -> NumericCoercionConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NumericCoercionConfig

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

Formats the value using the given formatter.

impl Default for NumericCoercionConfig

fn default() -> Self

Returns the “default value” for a type.