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from __future__ import annotations
class DomainError(Exception):
"""Base of every domain-raised error."""
class SchemaError(DomainError):
"""Raw input violates the candidate schema mirror (type/shape only)."""
class InvalidCandidateId(SchemaError):
"""A candidate id does not match the canonical pattern."""
class FieldSchemaViolation(SchemaError):
"""A raw field has the wrong type or shape."""
class InvariantViolation(DomainError):
"""A constructed object would break a domain invariant."""
class RepresentationStageError(InvariantViolation):
"""A slice was attached out of order or accessed before population."""
class CQVInvariantError(InvariantViolation):
"""Wrong dim, NaN/inf, out-of-range cell, or schema_version mismatch."""
class ScoreInvariantError(InvariantViolation):
"""A gating or scoring-formula contradiction."""
class RankingInvariantError(InvariantViolation):
"""Count / unique-rank / monotonicity / tie-break violation."""
class ProvenanceError(DomainError):
"""An ``EvidenceRef`` path does not resolve in the ``RawCandidate``."""
class ArtifactContractError(DomainError):
"""Feature-layout / anchor-set / weights schema_version mismatch."""
class IntegrityViolation(DomainError):
"""An engine chose to fail hard on an integrity breach (rare path)."""
class IneligibleCandidate(DomainError):
"""An engine chose to fail hard on ineligibility (rare path)."""
__all__: tuple[str, ...] = (
"ArtifactContractError",
"CQVInvariantError",
"DomainError",
"FieldSchemaViolation",
"IneligibleCandidate",
"IntegrityViolation",
"InvalidCandidateId",
"InvariantViolation",
"ProvenanceError",
"RankingInvariantError",
"RepresentationStageError",
"SchemaError",
"ScoreInvariantError",
) |