Struct PinBoxFutRet 

pub struct PinBoxFutRet { /* private fields */ }

The return type information of a function.

Implementations

impl PinBoxFutRet

pub fn parse(ret_ty: &ReturnType) -> PinBoxFutRet

Parse a function return type in proc-macro.

pub fn is_ret_pin_box_fut(&self) -> bool

Whether the function return a Pin<Box<dyn Future<Output = RetTy>>>.

pub fn is_fut_ret_result(&self) -> bool

Whether the output type of Future is a Result.

pub fn return_type(&self) -> TokenStream

The token stream of the return type.

Trait Implementations

impl Clone for PinBoxFutRet

fn clone(&self) -> PinBoxFutRet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PinBoxFutRet

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

Formats the value using the given formatter.

impl Default for PinBoxFutRet

fn default() -> Self

Returns the “default value” for a type.