Enum ValueSchema 

pub enum ValueSchema {
    Number {
        kind: NumberKind,
    },
    Bool,
    Text {
        max_len: Option<usize>,
    },
    Enum {
        variants: Vec<String>,
    },
    Array {
        items: Box<ValueSchema>,
        min_len: Option<usize>,
        max_len: Option<usize>,
    },
    Record {
        fields: Vec<FieldSchema>,
        allow_extra: bool,
    },
    Quantity {
        dimension: Option<Dimension>,
        allow_delta: bool,
    },
    Money,
    Matrix {
        max_elems: Option<usize>,
        square: bool,
    },
    Expression {
        variables: Vec<String>,
    },
    Bound,
    Any,
}

The schema of a single value.

Variants

Number

Fields

kind: NumberKind

Bool

Text

Fields

max_len: Option<usize>

Enum

Fields

variants: Vec<String>

Array

Fields

items: Box<ValueSchema>

min_len: Option<usize>

max_len: Option<usize>

Record

Fields

fields: Vec<FieldSchema>

allow_extra: bool

Quantity

Fields

dimension: Option<Dimension>

allow_delta: bool

Whether a temperature-difference style quantity is accepted.

Money

Matrix

Fields

max_elems: Option<usize>

square: bool

Expression

A restricted expression string, parsed by the engine before invocation.

Fields

variables: Vec<String>

Bound

Any

Implementations

impl ValueSchema

pub fn number(kind: NumberKind) -> ValueSchema

pub fn exact() -> ValueSchema

pub fn float64() -> ValueSchema

pub fn text() -> ValueSchema

pub fn array(items: ValueSchema) -> ValueSchema

pub fn array_with_len( items: ValueSchema, min_len: usize, max_len: Option<usize>, ) -> ValueSchema

pub fn validate( &self, value: &Value, path: &str, limits: &Limits, ) -> Result<(), EngineError>

Validate an already-typed value.

pub fn coerce( &self, raw: &Value, path: &str, limits: &Limits, numeric_shorthand: bool, ) -> Result<Value, EngineError>

Coerce raw JSON into a typed value, applying the documented shorthand rules: JSON integers/decimals are exact, and when numeric_shorthand is true a string is parsed as a numeric literal for numeric schemas.

pub fn is_numeric(&self) -> bool

True when this schema accepts exact numeric payloads and therefore may receive string shorthand in expressions/requests.

pub fn summary(&self) -> String

A short human-readable description, used in generated documentation.

pub fn to_json_schema(&self) -> Value

Convert to a JSON-schema-like description used in MCP tool definitions.

Trait Implementations

impl Clone for ValueSchema

fn clone(&self) -> ValueSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueSchema

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ValueSchema

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ValueSchema

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ValueSchema

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 ValueSchema