62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
from __future__ import annotations
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import json
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import struct
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from typing import Any
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def SerializeSymbolTable(SymbolTable: dict[str, Any]) -> bytes:
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"""将符号表序列化为二进制格式
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格式:
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- 4字节: JSON数据长度（小端序）
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- N字节: JSON数据（UTF-8编码）
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Args:
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SymbolTable: 符号表字典
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Returns:
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二进制字节数据
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"""
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JsonData: bytes = json.dumps(SymbolTable, ensure_ascii=False).encode('utf-8')
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length: int = len(JsonData)
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# 使用4字节小端序整数表示长度
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header: bytes = struct.pack('<I', length)
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return header + JsonData
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def deSerializeSymbolTable(data: bytes) -> dict[str, Any]:
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"""从二进制数据反序列化符号表
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Args:
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data: 二进制字节数据
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Returns:
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符号表字典
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"""
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if len(data) < 4:
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raise ValueError("Invalid symbin file: data too short")
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# 解析4字节长度头（小端序）
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length: int = struct.unpack('<I', data[:4])[0]
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JsonData: bytes = data[4:4+length]
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return json.loads(JsonData.decode('utf-8'))
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class SymbolFile:
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"""符号文件类，用于解析和存储符号信息"""
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def __init__(self, file: str | None = None, string: str | None = None, type: str | None = None, encoding: str = 'utf-8') -> None:
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"""初始化SymbolFile对象
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Args:
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file: 文件路径
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string: 代码字符串
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type: 文件类型，支持"c"或"py"
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encoding: 文件编码
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"""
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self.FilePath: str | None = file
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self.CodeString: str | None = string
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self.FileType: str | None = type
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self.encoding: str = encoding
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self.symbols: dict[str, Any] = {}
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