SOURCE CODE pipda.symbolic DOCS

from __future__ import annotations

from typing import Any, TYPE_CHECKING

from .expression import Expression

if TYPE_CHECKING:
    from .context import ContextType


class Symbolic(Expression):DOCS
    """The symbolic class, works as a proxy to represent the data
    In most cases it is used to construct the Reference objects.
    """

    _pipda_level = 0
    _pipda_instance = None

    def __new__(cls) -> Symbolic:
        if cls._pipda_instance is not None:
            return cls._pipda_instance

        inst = super().__new__(cls)
        cls._pipda_instance = inst
        return inst

    def __str__(self) -> str:DOCS
        return ""

    def _pipda_eval(
        self,
        data: Any,
        context: ContextType | None = None,
    ) -> Any:
        """When evaluated, this should just return the data directly"""
        return data