Source code for


    :copyright: 2022 by Pint Authors, see AUTHORS for more details.
    :license: BSD, see LICENSE for more details.

from __future__ import annotations

import typing as ty
from dataclasses import dataclass

from ... import errors
from .. import plain

[docs]@dataclass(frozen=True) class GroupDefinition(errors.WithDefErr): """Definition of a group.""" #: name of the group name: str #: unit groups that will be included within the group using_group_names: ty.Tuple[str, ...] #: definitions for the units existing within the group definitions: ty.Tuple[plain.UnitDefinition, ...] @classmethod def from_lines(cls, lines, non_int_type): # TODO: this is to keep it backwards compatible from ...delegates import ParserConfig, txt_defparser cfg = ParserConfig(non_int_type) parser = txt_defparser.DefParser(cfg, None) pp = parser.parse_string("\n".join(lines) + "\n@end") for definition in parser.iter_parsed_project(pp): if isinstance(definition, cls): return definition @property def unit_names(self) -> ty.Tuple[str, ...]: return tuple( for el in self.definitions) def __post_init__(self): if not errors.is_valid_group_name( raise self.def_err(errors.MSG_INVALID_GROUP_NAME) for k in self.using_group_names: if not errors.is_valid_group_name(k): raise self.def_err( f"refers to '{k}' that " + errors.MSG_INVALID_GROUP_NAME )