How to insert a new symbol into the instance of Class: BinData::Record in Ruby

Question

I am newbie in ruby. I have a instance of a Class: BinData::Record https://www.rubydoc.info/github/dmendel/bindata/BinData/Record

class Message < BinData::Record
        endian  :big
        uint32 :header  
        uint16 :name
end

meesage is the instance of this class

message = Message.new
message.read('abcdefabcdef')

I want to add a new symbol into the instance, I tried below code

message.age = 10

But it doesn't work.

Could you please tell how to insert a new symbol into the instance of Class: BinData::Record?

question from:https://stackoverflow.com/questions/65948056/how-to-insert-a-new-symbol-into-the-instance-of-class-bindatarecord-in-ruby

Answer 1

It's better add new attributes to Class definition to use it:

class Message < BinData::Record
  uint32 :age # Add :age
end

There's no easy way to add new symbols to a instance.

If you have to do it, you could check this https://stackoverflow.com/a/27701042/15097028