Struct ComputedSpec 

pub struct ComputedSpec {
    pub key: String,
    pub from: Expr,
    pub description: String,
}

A computed (derived) state variable authored as data: key is written to derived:{key} whenever the Expr evaluates to a value. Dependencies are inferred from the expression’s Expr::keys_read, so the runtime’s dependency-ordered ComputedRegistry invariants hold with nothing extra to declare. Guards read the result by its bare key (the derived: fallback).

Fields

key: String

Result key (written as derived:{key}).

from: Expr

The expression computing the value.

description: String

Human-readable note.

Trait Implementations

impl Clone for ComputedSpec

fn clone(&self) -> ComputedSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComputedSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ComputedSpec

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for ComputedSpec

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl Serialize for ComputedSpec

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

where __S: Serializer,

Serialize this value into the given Serde serializer.