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"""Module-wide errors.
Part of the tagit module.
A copy of the license is provided with the project.
Author: Matthias Baumgartner, 2022
"""
# exports
__all__ = (
'EmptyFileError',
'LoaderError',
'NotAFileError',
'ProgrammingError',
'UserError',
'abstract',
)
## code ##
def abstract():
"""Marks that a method has to be implemented in a child class."""
raise NotImplementedError('abstract method that must be implemented in a subclass')
class ProgrammingError(Exception):
"""Reached a program state that shouldn't be reachable."""
pass
class UserError(ValueError):
"""Found an illegal value that was specified directly by the user."""
pass
class NotAFileError(OSError):
"""A file-system object is not a regular file."""
pass
class EmptyFileError(OSError):
"""A file is unexpectedly empty."""
pass
class LoaderError(Exception):
"""Failed to load or initialize a critical data structure."""
pass
class ParserFrontendError(Exception):
"""Generic parser frontend error."""
pass
class ParserBackendError(Exception):
"""Generic parser backend error."""
pass
class ParserError(Exception):
"""String parsing failure."""
pass
class BackendError(Exception):
"""Generic backend error."""
pass
## EOF ##
|
