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e1ced61 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | """Deterministic comparison-slot construction shared by all controlled arms."""
from __future__ import annotations
import copy
from collections.abc import Iterable, Mapping
from dataclasses import dataclass
from typing import Any
from ..hashing import canonical_json_hash, join_manifest_sha256, sha256_text
from .data import AdmittedGroup
_TARGET_SOURCE_ROLES = frozenset({"TARGET_EVIDENCE", "TARGET_REFERENT", "SUBSTITUTE"})
@dataclass(frozen=True)
class ComparisonSlot:
slot_id: str
group_id: str
base_id: str
source: str
split: str
question: str
comparison_role: str
source_role: str
full_view: dict[str, Any]
selected_view: dict[str, Any]
full_answer: Any
answer_type: str
choices: tuple[dict[str, Any], ...]
def to_row(self) -> dict[str, Any]:
return {
"schema_version": 2,
"slot_id": self.slot_id,
"group_id": self.group_id,
"base_id": self.base_id,
"source": self.source,
"split": self.split,
"question": self.question,
"comparison_role": self.comparison_role,
"source_role": self.source_role,
"full_view_id": self.full_view["view_id"],
"selected_view_id": self.selected_view["view_id"],
"selected_state": self.selected_view["state"],
"full_view": copy.deepcopy(self.full_view),
"selected_view": copy.deepcopy(self.selected_view),
"full_answer": self.full_answer,
"selected_target": self.selected_view["target_canonical"],
"answer_type": self.answer_type,
"choices": [dict(choice) for choice in self.choices],
}
def _group_row(group: AdmittedGroup | Mapping[str, Any]) -> dict[str, Any]:
return group.row if isinstance(group, AdmittedGroup) else copy.deepcopy(dict(group))
def _comparison_role(source_role: str) -> str:
if source_role == "POSITIVE":
return "POSITIVE"
if source_role == "CONTROL":
return "CONTROL"
if source_role in _TARGET_SOURCE_ROLES:
return "TARGET"
raise ValueError(f"unsupported source role: {source_role!r}")
def build_comparison_slots(
groups: Iterable[AdmittedGroup | Mapping[str, Any]],
*,
seed: int,
max_slots: int | None = None,
) -> tuple[ComparisonSlot, ...]:
"""Build one slot per available role and deterministically shuffle by seed."""
if seed < 0:
raise ValueError("seed must be non-negative")
if max_slots is not None and max_slots <= 0:
raise ValueError("max_slots must be positive")
slots: list[ComparisonSlot] = []
seen_groups: set[str] = set()
for group_value in groups:
group = _group_row(group_value)
group_id = str(group["group_id"])
if group_id in seen_groups:
raise ValueError(f"duplicate group_id: {group_id}")
seen_groups.add(group_id)
views = list(group["views"])
full_views = [view for view in views if view["state"] == "FULL"]
if len(full_views) != 1:
raise ValueError(f"group {group_id}: expected exactly one FULL view")
full = copy.deepcopy(full_views[0])
for view in sorted(views, key=lambda item: str(item["view_id"])):
source_role = str(view["role"])
role = _comparison_role(source_role)
selected = copy.deepcopy(view)
slot_id = canonical_json_hash(
{
"schema_version": 1,
"group_id": group_id,
"base_id": group["base_id"],
"comparison_role": role,
"source_role": source_role,
"selected_view_id": selected["view_id"],
}
)
slots.append(
ComparisonSlot(
slot_id=slot_id,
group_id=group_id,
base_id=str(group["base_id"]),
source=str(group.get("source", "")),
split=str(group.get("split", "")),
question=str(group["question"]),
comparison_role=role,
source_role=source_role,
full_view=copy.deepcopy(full),
selected_view=selected,
full_answer=group["full_answer_canonical"],
answer_type=str(group["answer_type"]),
choices=tuple(copy.deepcopy(group.get("choices", []))),
)
)
if not slots:
raise ValueError("cannot build comparison slots from an empty group set")
slots.sort(key=lambda slot: (sha256_text(f"{seed}:{slot.slot_id}"), slot.slot_id))
if max_slots is not None:
slots = slots[:max_slots]
return tuple(slots)
def comparison_slot_from_row(row: Mapping[str, Any]) -> ComparisonSlot:
"""Restore a persisted v2 comparison slot without consulting group data."""
if row.get("schema_version") != 2:
raise ValueError("comparison slot row must use schema_version=2")
required_strings = (
"slot_id",
"group_id",
"base_id",
"source",
"split",
"question",
"comparison_role",
"source_role",
"answer_type",
)
for field in required_strings:
if not isinstance(row.get(field), str) or not str(row[field]):
raise ValueError(f"comparison slot {field} must be a non-empty string")
full_view = row.get("full_view")
selected_view = row.get("selected_view")
if not isinstance(full_view, Mapping) or not isinstance(selected_view, Mapping):
raise ValueError("comparison slot must persist full_view and selected_view")
if full_view.get("view_id") != row.get("full_view_id"):
raise ValueError("comparison slot full_view_id drift")
if selected_view.get("view_id") != row.get("selected_view_id"):
raise ValueError("comparison slot selected_view_id drift")
if selected_view.get("state") != row.get("selected_state"):
raise ValueError("comparison slot selected_state drift")
choices = row.get("choices")
if not isinstance(choices, list) or any(not isinstance(choice, Mapping) for choice in choices):
raise ValueError("comparison slot choices must be a list of objects")
slot = ComparisonSlot(
slot_id=str(row["slot_id"]),
group_id=str(row["group_id"]),
base_id=str(row["base_id"]),
source=str(row["source"]),
split=str(row["split"]),
question=str(row["question"]),
comparison_role=str(row["comparison_role"]),
source_role=str(row["source_role"]),
full_view=copy.deepcopy(dict(full_view)),
selected_view=copy.deepcopy(dict(selected_view)),
full_answer=copy.deepcopy(row.get("full_answer")),
answer_type=str(row["answer_type"]),
choices=tuple(copy.deepcopy(dict(choice)) for choice in choices),
)
if slot.to_row() != copy.deepcopy(dict(row)):
raise ValueError("comparison slot row is not canonical")
return slot
def comparison_slot_manifest_sha256(slots: Iterable[ComparisonSlot]) -> str:
"""Hash an ordered slot sequence; all arms must record the same value."""
return join_manifest_sha256(canonical_json_hash(slot.to_row()) for slot in slots)
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