init

core/client.py

@@ -0,0 +1,43 @@
+from typing import Dict, Tuple, Any
+
+class Client:
+	__slots__ = ('program', 'version', 'via', '_tuple', '_hash')
+	
+	program: str
+	version: str
+	via: str
+	_tuple: Tuple[str, str, str]
+	_hash: int
+	
+	@classmethod
+	def FromJSON(cls, json: Dict[str, str]) -> 'Client':
+		return Client(json['program'], json['version'], json.get('via') or 'direct')
+	
+	@classmethod
+	def ToJSON(cls, client: 'Client') -> Dict[str, str]:
+		return {
+			'program': client.program,
+			'version': client.version,
+			'via': client.via,
+		}
+	
+	def __init__(self, program: str, version: str, via: str) -> None:
+		self.program = program
+		self.version = version
+		self.via = via
+		self._tuple = (program, version, via)
+		self._hash = hash(self._tuple)
+	
+	def __setattr__(self, attr: str, value: Any) -> Any:
+		if getattr(self, '_hash', None) is None:
+			super().__setattr__(attr, value)
+			return
+		raise AttributeError("Immutable")
+	
+	def __eq__(self, other: Any) -> bool:
+		if not isinstance(other, Client):
+			return False
+		return self._tuple == other._tuple
+	
+	def __hash__(self) -> int:
+		return self._hash