Struct HostCallable 

pub struct HostCallable { /* private fields */ }

A callable closure backed by native Rust code with captured state. Used by extension modules to return objects with callable methods (e.g., DbTable.filter).

Implementations

impl HostCallable

pub fn new( f: impl Fn(&[ValueWord]) -> Result<ValueWord, String> + Send + Sync + 'static, ) -> Self

Create a new HostCallable from a closure

pub fn call(&self, args: &[ValueWord]) -> Result<ValueWord, String>

Call the host closure with the given arguments

Trait Implementations

impl Clone for HostCallable

fn clone(&self) -> HostCallable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostCallable

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

Formats the value using the given formatter.