# Copyright 2021 The Meson development team # SPDX-license-identifier: Apache-2.0 from __future__ import annotations from ...interpreterbase import ( InterpreterObject, MesonOperator, ObjectHolder, typed_pos_args, noKwargs, noPosargs, InvalidArguments ) import typing as T if T.TYPE_CHECKING: from ...interpreterbase import TYPE_var, TYPE_kwargs class BooleanHolder(ObjectHolder[bool]): TRIVIAL_OPERATORS = { MesonOperator.BOOL: (None, lambda obj, x: obj.held_object), MesonOperator.NOT: (None, lambda obj, x: not obj.held_object), MesonOperator.EQUALS: (bool, lambda obj, x: obj.held_object == x), MesonOperator.NOT_EQUALS: (bool, lambda obj, x: obj.held_object != x), } def display_name(self) -> str: return 'bool' @noKwargs @noPosargs @InterpreterObject.method('to_int') def to_int_method(self, args: T.List[TYPE_var], kwargs: TYPE_kwargs) -> int: return 1 if self.held_object else 0 @noKwargs @typed_pos_args('bool.to_string', optargs=[str, str]) @InterpreterObject.method('to_string') def to_string_method(self, args: T.Tuple[T.Optional[str], T.Optional[str]], kwargs: TYPE_kwargs) -> str: true_str = args[0] or 'true' false_str = args[1] or 'false' if any(x is not None for x in args) and not all(x is not None for x in args): raise InvalidArguments('bool.to_string() must have either no arguments or exactly two string arguments that signify what values to return for true and false.') return true_str if self.held_object else false_str