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import dataclasses as dc
from typing import Literal, NoReturn, overload
@dc.dataclass
class ClinicError(Exception):
message: str
_: dc.KW_ONLY
lineno: int | None = None
filename: str | None = None
def __post_init__(self) -> None:
super().__init__(self.message)
def report(self, *, warn_only: bool = False) -> str:
msg = "Warning" if warn_only else "Error"
if self.filename is not None:
msg += f" in file {self.filename!r}"
if self.lineno is not None:
msg += f" on line {self.lineno}"
msg += ":\n"
msg += f"{self.message}\n"
return msg
class ParseError(ClinicError):
pass
@overload
def warn_or_fail(
*args: object,
fail: Literal[True],
filename: str | None = None,
line_number: int | None = None,
) -> NoReturn: ...
@overload
def warn_or_fail(
*args: object,
fail: Literal[False] = False,
filename: str | None = None,
line_number: int | None = None,
) -> None: ...
def warn_or_fail(
*args: object,
fail: bool = False,
filename: str | None = None,
line_number: int | None = None,
) -> None:
joined = " ".join([str(a) for a in args])
error = ClinicError(joined, filename=filename, lineno=line_number)
if fail:
raise error
else:
print(error.report(warn_only=True))
def warn(
*args: object,
filename: str | None = None,
line_number: int | None = None,
) -> None:
return warn_or_fail(*args, filename=filename, line_number=line_number, fail=False)
def fail(
*args: object,
filename: str | None = None,
line_number: int | None = None,
) -> NoReturn:
warn_or_fail(*args, filename=filename, line_number=line_number, fail=True)
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