Trait PyStructSequenceData 

pub trait PyStructSequenceData: Sized {
    const REQUIRED_FIELD_NAMES: &'static [&'static str];
    const OPTIONAL_FIELD_NAMES: &'static [&'static str];
    const UNNAMED_FIELDS_LEN: usize = 0;

    // Required method
    fn into_tuple(self, vm: &VirtualMachine) -> PyTuple;

    // Provided method
    fn try_from_elements(
        _elements: Vec<PyObjectRef>,
        vm: &VirtualMachine,
    ) -> PyResult<Self> { ... }
}

Trait for Data structs that back a PyStructSequence.

This trait is implemented by #[pystruct_sequence_data] on the Data struct. It provides field information, tuple conversion, and element parsing.

Required Associated Constants

const REQUIRED_FIELD_NAMES: &'static [&'static str]

Names of required fields (in order). Shown in repr.

const OPTIONAL_FIELD_NAMES: &'static [&'static str]

Names of optional/skipped fields (in order, after required fields).

Provided Associated Constants

const UNNAMED_FIELDS_LEN: usize = 0

Number of unnamed fields (visible but index-only access).

Required Methods

fn into_tuple(self, vm: &VirtualMachine) -> PyTuple

Convert this Data struct into a PyTuple.

Provided Methods

fn try_from_elements( _elements: Vec<PyObjectRef>, vm: &VirtualMachine, ) -> PyResult<Self>

Construct this Data struct from tuple elements. Default implementation returns an error. Override with #[pystruct_sequence_data(try_from_object)] to enable.

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