When should I use Struct vs. OpenStruct?

Question

In general, what are the advantages and disadvantages of using an OpenStruct as compared to a Struct? What type of general use-cases would fit each of these?

Answer 1

Have a look at the API with regard to the new method. A lot of the differences can be found there.

Personally, I quite like OpenStruct, as I don't have to define the structure of the object beforehand, and just add stuff as I want. I guess that would be its main (dis)advantage?

• http://www.ruby-doc.org/core/classes/Struct.html
• http://www.ruby-doc.org/stdlib/libdoc/ostruct/rdoc/classes/OpenStruct.html