Struct FuncMetadata 

pub struct FuncMetadata {
    pub source: Option<Symbol>,
    pub differentiator_hint: Option<Symbol>,
    pub payload: Option<Value>,
}

Out-of-band annotations attached to a Func value.

Fields

source: Option<Symbol>

Symbol identifying where this function came from (for example, an elementary-function name), when known.

differentiator_hint: Option<Symbol>

Optional hint naming the differentiator that should handle grad/diff for this function.

payload: Option<Value>

Arbitrary caller-supplied value carried alongside the function.

Trait Implementations

impl Clone for FuncMetadata

fn clone(&self) -> FuncMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for FuncMetadata

fn default() -> FuncMetadata

Returns the “default value” for a type.