25 lines
729 B
Python
25 lines
729 B
Python
"""Application error hierarchy.
|
|
|
|
Every expected failure is a subclass of :class:`LedgerlyError`, so the CLI
|
|
layer can translate failures into stable exit codes instead of inspecting
|
|
message text (single source of truth for error semantics).
|
|
"""
|
|
|
|
__all__ = ["ConflictError", "LedgerlyError", "NotFoundError", "ValidationError"]
|
|
|
|
|
|
class LedgerlyError(Exception):
|
|
"""Base class for all expected Ledgerly failures."""
|
|
|
|
|
|
class ValidationError(LedgerlyError):
|
|
"""Input does not satisfy a domain rule (R1-R10)."""
|
|
|
|
|
|
class NotFoundError(LedgerlyError):
|
|
"""The requested entity does not exist (R8, R12)."""
|
|
|
|
|
|
class ConflictError(LedgerlyError):
|
|
"""The request conflicts with current state (e.g. a category in use, R9)."""
|