Enum ValueSource 

#[non_exhaustive]
pub enum ValueSource {
    Sync(Arc<dyn Fn(&Exchange) -> Value + Send + Sync>),
    Async(Arc<dyn Fn(&Exchange) -> BoxValueFuture + Send + Sync>),
}

Fallible value source for dynamic setters and log messages.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Sync(Arc<dyn Fn(&Exchange) -> Value + Send + Sync>)

Programmatic synchronous closure producing a Value.

Async(Arc<dyn Fn(&Exchange) -> BoxValueFuture + Send + Sync>)

Language-backed asynchronous expression.

Implementations

impl ValueSource

pub async fn evaluate(&self, exchange: &Exchange) -> Result<Value, CamelError>

Evaluate the value against exchange, propagating async failures.

Trait Implementations

impl Clone for ValueSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<Arc<dyn Fn(&Exchange) -> Pin<Box<dyn Future<Output = Result<Value, CamelError>> + Send>> + Sync + Send>> for ValueSource

fn from(f: Arc<dyn Fn(&Exchange) -> BoxValueFuture + Send + Sync>) -> Self

Converts to this type from the input type.

impl From<Arc<dyn Fn(&Exchange) -> Value + Sync + Send>> for ValueSource

fn from(f: Arc<dyn Fn(&Exchange) -> Value + Send + Sync>) -> Self

Converts to this type from the input type.