Struct FunctionPtr 

pub struct FunctionPtr<Args, Return> {
    pub kind: FunctionPtrKind,
    pub args: Args,
    pub return_type: Return,
}

A function pointer. Can be used for fn, Fn, FnMut, and FnOnce.

Example:

let function_ptr = FunctionPtr {
  kind: FunctionPtrKind::FnMut,
  args: SingularSeq(Str("String")),
  return_type: Str("bool")
};
let string = InMemoryOutput::print_output(EmptyContext, &function_ptr);
assert_eq!("FnMut(String) -> bool", string);

Fields

kind: FunctionPtrKind

The function pointer kind

args: Args

The arguments. Must be a sequence

return_type: Return

The return type, i.e. after the -> arrow

Trait Implementations

impl<Args: Clone, Return: Clone> Clone for FunctionPtr<Args, Return>

fn clone(&self) -> FunctionPtr<Args, Return>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Args: Debug, Return: Debug> Debug for FunctionPtr<Args, Return>

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

Formats the value using the given formatter.

impl<O, Args, Return> Writable<O> for FunctionPtr<Args, Return>

where O: Output, Args: WritableSeq<O>, Return: Writable<O>,

async fn write_to(&self, output: &mut O) -> Result<(), O::Error>

Writes to the output. Returns the output’s error upon failure.