Trait VarargsHandler

pub trait VarargsHandler<'py> {
    type Varargs;

    // Required methods
    fn handle_varargs_fastcall(
        py: Python<'py>,
        varargs: &[Option<Borrowed<'py, 'py, PyAny>>],
        function_description: &FunctionDescription,
    ) -> PyResult<Self::Varargs>;
    fn handle_varargs_tuple(
        args: &Bound<'py, PyTuple>,
        function_description: &FunctionDescription,
    ) -> PyResult<Self::Varargs>;
}

A trait used to control whether to accept varargs in FunctionDescription::extract_argument_(method) functions.

Required Associated Types

type Varargs

Required Methods

fn handle_varargs_fastcall( py: Python<'py>, varargs: &[Option<Borrowed<'py, 'py, PyAny>>], function_description: &FunctionDescription, ) -> PyResult<Self::Varargs>

Called by FunctionDescription::extract_arguments_fastcall with any additional arguments.

fn handle_varargs_tuple( args: &Bound<'py, PyTuple>, function_description: &FunctionDescription, ) -> PyResult<Self::Varargs>

Called by FunctionDescription::extract_arguments_tuple_dict with the original tuple.

Additional arguments are those in the tuple slice starting from function_description.positional_parameter_names.len().

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<'py> VarargsHandler<'py> for NoVarargs

type Varargs = ()

impl<'py> VarargsHandler<'py> for TupleVarargs

type Varargs = Bound<'py, PyTuple>