rusttypes.traits

class rusttypes.traits.Default

Bases: ABC

Default trait for use creating default instances of a type.

Example:

from __future__ import annotations
from dataclasses import dataclass
from rusttypes.traits import Default

@dataclass
class Foo(Default):
    value: int

    @staticmethod
    def default() -> Foo:
        return Foo(42)

assert Foo.default() == Foo(42)

abstract classmethod default() → T

Protopype method for creating a default instance of a type.