public LoxFunctionCallable(FunctionStmt stmt, LoxEnvironment closure, bool isInitializer = false)
{
_functionStmt = stmt;
_closure = closure;
_isInitializer = isInitializer;
}
public void Visit(FunctionStmt stmt)
{
var callable = new LoxFunctionCallable(stmt, _currentEnvironment);
_currentEnvironment.Define(stmt.Name.Lexeme, callable);
}