mirror of
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60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
"""宿主模块目录的应用层端口。"""
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from __future__ import annotations
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from collections.abc import Callable
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from typing import Any, Protocol
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class ModuleRuntime(Protocol):
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"""声明入口层消费的模块目录能力。"""
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def __getattr__(self, name: str) -> Any:
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"""允许兼容门面访问既有模块管理方法。"""
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ModuleRuntimeProvider = Callable[[], ModuleRuntime]
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def _unconfigured_runtime() -> ModuleRuntime:
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"""拒绝在组合根装配前隐式创建模块管理器。"""
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raise RuntimeError("宿主模块运行时尚未由启动组合根装配")
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_runtime_provider: ModuleRuntimeProvider = _unconfigured_runtime
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def configure_module_runtime(provider: ModuleRuntimeProvider) -> None:
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"""由启动组合根注册模块运行时实例提供器。"""
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global _runtime_provider
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_runtime_provider = provider
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def get_module_manager() -> ModuleRuntime:
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"""返回当前组合根提供的模块目录能力。"""
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return _runtime_provider()
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class _ModuleRuntimeProxy(type):
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"""把历史 ``ModuleManager`` 调用转发到应用端口。"""
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def __getattr__(cls, name: str) -> Any:
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"""转发旧的类级静态调用。"""
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return getattr(get_module_manager(), name)
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class ModuleManager(metaclass=_ModuleRuntimeProxy):
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"""应用层兼容门面，实例调用返回组合根装配的模块管理器。"""
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def __new__(cls) -> ModuleRuntime:
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"""返回实际模块管理器，不复制运行态注册表。"""
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return get_module_manager()
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__all__ = [
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"ModuleManager",
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"ModuleRuntime",
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"configure_module_runtime",
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"get_module_manager",
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]
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