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36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
"""
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Schema 根包的惰性兼容导出入口。
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公开符号清单由 ``scripts/schema/exports.py`` 从各 schema 子模块生成。
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旧的 ``app.schemas.X`` 与 ``from app.schemas import X`` 路径保持不变，但仅在首次
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访问具体符号时加载其所有者模块，避免任意 schema 导入触发完整模型图。
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"""
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from importlib import import_module as _import_module
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from typing import Any as _Any
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from app.schemas.exports import SCHEMA_EXPORTS as _SCHEMA_EXPORTS
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def __getattr__(name: str) -> _Any:
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"""
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按生成清单惰性解析并缓存 schema 公开符号。
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"""
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contract = _SCHEMA_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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"""
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返回兼容公开面，供 IDE、文档与交互式检查使用。
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"""
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return sorted({*globals(), *_SCHEMA_EXPORTS})
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__all__ = sorted(_SCHEMA_EXPORTS)
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