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29 lines
815 B
Python
29 lines
815 B
Python
"""调度器的惰性稳定公开入口。"""
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from importlib import import_module
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from typing import Any
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_EXPORTS = {
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"Scheduler": ("app.scheduler.facade", "Scheduler"),
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"SchedulerChain": ("app.scheduler.chain", "SchedulerChain"),
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}
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def __getattr__(name: str) -> Any:
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"""首次访问时解析旧插件 ABI，避免包根导入宿主实现。"""
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contract = _EXPORTS.get(name)
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if contract is None:
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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module_name, symbol_name = contract
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value = getattr(import_module(module_name), symbol_name)
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globals()[name] = value
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return value
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def __dir__() -> list[str]:
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"""向交互式工具暴露稳定公开面。"""
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return sorted({*globals(), *_EXPORTS})
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__all__ = ["Scheduler", "SchedulerChain"]
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