SymbolCacheMgr constructor

SymbolCacheMgr()

Factory constructor returning the singleton instance.

Creates the instance on first access and returns the same instance for subsequent calls to ensure global cache consistency.

Returns the singleton SymbolCacheMgr instance

Implementation

factory SymbolCacheMgr() {
  if (_instance != null) return _instance!;
  _instance = SymbolCacheMgr._();
  return _instance!;
}