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290 lines
10 KiB
Python
290 lines
10 KiB
Python
"""Per-occurrence native collaborators, with no process-wide policy replacement.
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NW3 supplies durable occurrence identity and NW4/5/6 supply qualified argument
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adapters. The bridge never creates ordinary collaborators as substitutes.
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"""
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from __future__ import annotations
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from collections.abc import Callable, Mapping
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from dataclasses import dataclass
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from types import MappingProxyType
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from typing import Any, Protocol
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from uuid import UUID
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from graphon.nodes.base.node import Node
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from runtime_contracts.builder.native.contracts import NativeTestContextRef
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from runtime_contracts.builder.native.runtime_contracts import NativeStatePort, ResolvedNativeTestContext
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from services.dify_builder.native_testing.context_binding import NativeContextUnavailable, resolve_native_context
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from services.dify_builder.native_testing.control import (
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BoundaryOwnerState,
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NativeControlSink,
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_NativeControlBoundary,
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marked_native_node_class,
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)
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@dataclass(frozen=True, slots=True)
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class NativeCollaborators:
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"""Explicit capability owners; all slots must be supplied by trusted composition."""
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http: object
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model: object
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tool: object
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retrieval: object
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file: object
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code: object
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jinja: object
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agent: object
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human_input: object
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data_source: object
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class NativeCollaboratorFactory(Protocol):
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"""Select deferred adapters only; do not resolve context or perform I/O here.
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Each adapter must enter through association.resolve() before protected
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preparation/effects and use its bound public execution_id/occurrence_path.
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An adapter must never retain an ordinary collaborator as a fallback.
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"""
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def __call__(self, *, association: NativeNodePreparation) -> NativeCollaborators: ...
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class NativeNodeArguments(Protocol):
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"""Qualified adapters select constructor parameters for the actual native class.
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Must explicitly account for every effect owner of that class. Unsupported
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implementations raise a capability reason before constructing the node.
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"""
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def __call__(
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self, *, node_id: str, node_data: Any, node_class: type, collaborators: NativeCollaborators
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) -> Mapping[str, Any]: ...
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class NativeRuntimeBridge:
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def __init__(
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self,
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*,
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state: NativeStatePort,
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collaborators: NativeCollaboratorFactory,
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boundary_owner: BoundaryOwnerState,
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control_sink: NativeControlSink,
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node_arguments: NativeNodeArguments,
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prepare_inputs: Callable[[ResolvedNativeTestContext], NativePreparedInputs] | None = None,
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):
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if (
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type(boundary_owner) is not BoundaryOwnerState
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or not isinstance(control_sink, NativeControlSink)
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or not callable(control_sink.record_control)
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):
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raise NativeContextUnavailable("native_control_unavailable")
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self._boundary_owner = boundary_owner
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self._control_sink = control_sink
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self.state = state
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self._prepare_inputs = prepare_inputs
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self._collaborators = collaborators
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self._node_arguments = node_arguments
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def prepare_inputs(self, context: ResolvedNativeTestContext) -> NativePreparedInputs:
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"""Reconstruct guarded values after each boundary; the owner must be idempotent.
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This is called by the generator, worker and runner. Any external
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preparation must share its durable operation/result identity across
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those calls and must not materialize ordinary credentials as fallback.
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"""
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if self._prepare_inputs is None:
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raise NativeContextUnavailable("native_input_adapter_unavailable")
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return self._prepare_inputs(context)
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def resolve(self, ref: NativeTestContextRef) -> ResolvedNativeTestContext:
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context = resolve_native_context(required=True, ref=ref, state=self.state)
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assert context is not None
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return context
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def prepare_node(
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self, *, ref: NativeTestContextRef, node_id: str, node_data: Any, node_class: type[Node], runtime_state: Any
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) -> NativeNodePreparation:
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"""Select explicit deferred collaborators before native public ID binding.
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This path reads no protected context, input, journal or binding state.
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Factory attaches the exact constructed instance once before returning it.
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Trusted adapters must defer every protected operation to effect entry.
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"""
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if type(ref) is not NativeTestContextRef or ref != self._boundary_owner.ref:
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raise NativeContextUnavailable("native_context_mismatch")
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prepared = NativeNodePreparation(
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bridge=self,
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ref=ref,
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node_id=node_id,
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node_class=marked_native_node_class(node_class, marked=True),
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runtime_state=runtime_state,
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)
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bundle = self._collaborators(association=prepared)
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if not isinstance(bundle, NativeCollaborators) or any(
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value is None
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for value in (
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bundle.http,
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bundle.model,
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bundle.tool,
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bundle.retrieval,
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bundle.file,
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bundle.code,
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bundle.jinja,
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bundle.agent,
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bundle.human_input,
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bundle.data_source,
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)
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):
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raise NativeContextUnavailable("native_collaborator_unavailable")
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arguments = dict(
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self._node_arguments(
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node_id=node_id,
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node_data=node_data,
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node_class=node_class,
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collaborators=bundle,
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)
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)
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if {
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"node_id",
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"data",
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"graph_init_params",
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"init_params",
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"graph_runtime_state",
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"runtime_state",
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"native_control_owner",
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"native_control_sink",
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}.intersection(arguments):
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raise NativeContextUnavailable("native_node_arguments_invalid")
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prepared._arguments = MappingProxyType(
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{
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**arguments,
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"native_control_owner": self._boundary_owner,
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"native_control_sink": self._control_sink,
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}
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)
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return prepared
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class NativeNodePreparation:
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"""Single native instance association; neither a binding nor dispatch authority.
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The public Graphon ID identifies this occurrence across native retry/restore.
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It is never minted from graph/config/input/counters. Invocation ownership
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remains the ref.invocation_id in each adapter's OperationKey. No nested
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lineage is inferred. A strong node reference avoids a shared current-node
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slot and keeps independent instances/child runtime clones separate.
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"""
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def __init__(
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self,
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*,
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bridge: NativeRuntimeBridge,
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ref: NativeTestContextRef,
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node_id: str,
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node_class: type[Node],
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runtime_state: Any,
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) -> None:
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self._bridge = bridge
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self._ref = ref
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self._node_id = node_id
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self._node_class = node_class
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self._arguments: Mapping[str, Any] = MappingProxyType({})
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self._runtime_state = runtime_state
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self._node: Node | None = None
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self._execution_id: str | None = None
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@property
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def ref(self) -> NativeTestContextRef:
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return self._ref
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@property
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def node_id(self) -> str:
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return self._node_id
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@property
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def node_class(self) -> type[Node]:
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return self._node_class
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@property
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def arguments(self) -> Mapping[str, Any]:
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return self._arguments
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def _validate_node(self, node: Node) -> None:
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if (
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type(node) is not self.node_class
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or node.id != self.node_id
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or node.runtime_state is not self._runtime_state
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# These are Dify control-mixin fields, never Graphon worker/frame internals.
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or not isinstance(node, _NativeControlBoundary)
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or node._native_control_owner is not self._bridge._boundary_owner
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or node._native_control_sink is not self._bridge._control_sink
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):
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raise NativeContextUnavailable("native_node_mismatch")
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if self.ref != self._bridge._boundary_owner.ref:
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raise NativeContextUnavailable("native_context_mismatch")
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def attach(self, node: Node) -> None:
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"""Attach once after construction, while public execution_id is unbound."""
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if self._node is not None:
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raise NativeContextUnavailable("native_node_already_attached")
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self._validate_node(node)
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self._node = node
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@property
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def execution_id(self) -> str:
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node = self._node
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if node is None:
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raise NativeContextUnavailable("native_node_unattached")
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self._validate_node(node)
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try:
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execution_id = node.execution_id
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except RuntimeError:
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raise NativeContextUnavailable("native_execution_id_missing") from None
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try:
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if type(execution_id) is not str or str(UUID(execution_id)) != execution_id:
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raise ValueError
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except (ValueError, TypeError, AttributeError):
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raise NativeContextUnavailable("native_execution_id_invalid") from None
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if self._execution_id is not None and execution_id != self._execution_id:
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raise NativeContextUnavailable("native_execution_id_mismatch")
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self._execution_id = execution_id
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return execution_id
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@property
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def bound_node(self) -> Node:
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"""Exact bound instance, without storage access or policy authority.
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Public node_data/runtime remain native mutable objects. Concrete effect
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owners must still compare their pinned config and prepared material.
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"""
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_ = self.execution_id
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assert self._node is not None
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return self._node
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@property
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def occurrence_path(self) -> tuple[str, ...]:
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return (self.execution_id,)
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@property
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def runtime_state(self) -> Any:
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_ = self.execution_id
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return self._runtime_state
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def resolve(self) -> ResolvedNativeTestContext:
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"""Revalidate the full private context at every actual effect boundary."""
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_ = self.execution_id
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context = self._bridge.resolve(self.ref)
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_ = self.execution_id
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return context
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@dataclass(frozen=True, slots=True)
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class NativePreparedInputs:
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"""Native typed/file/environment values from guarded input preparation."""
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inputs: Mapping[str, Any]
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files: tuple[Any, ...]
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environment_variables: tuple[Any, ...]
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