Struct NativeFn 

pub struct NativeFn {
    pub name: String,
    pub func: Box<NativeFnInner>,
    pub payload: Option<Rc<dyn Any>>,
    pub is_closure: bool,
}

Fields

name: String

func: Box<NativeFnInner>

payload: Option<Rc<dyn Any>>

is_closure: bool

True when this NativeFn is actually the fallback wrapper for a VM closure (a user-defined lambda/fn), not a genuine builtin. The VM represents closures as NativeFns carrying a VmClosurePayload; this flag lets type/type_name report :lambda instead of :native-fn without sema-core/sema-stdlib needing to know the VM’s payload type.

Implementations

impl NativeFn

pub fn simple( name: impl Into<String>, f: impl Fn(&[Value]) -> Result<Value, SemaError> + 'static, ) -> Self

pub fn with_ctx( name: impl Into<String>, f: impl Fn(&EvalContext, &[Value]) -> Result<Value, SemaError> + 'static, ) -> Self

pub fn with_payload( name: impl Into<String>, payload: Rc<dyn Any>, f: impl Fn(&EvalContext, &[Value]) -> Result<Value, SemaError> + 'static, ) -> Self

Trait Implementations

impl Debug for NativeFn

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

Formats the value using the given formatter.