Ruby Core Objects Diagram
ArtemSyzonenko opened this issue · 9 comments
Please consider this diagram to be placed on the website:
I might be wrong, but aren't Date and DateTime only part of the standard library and not part of Ruby core?
It seems you are right. I added it because of @postmodern notice:
" just noticed that you forgot DateTime, and that Time/Date/DateTime include Comparable."
Slight off-topic: I've just double checked and found an interesting behavior:
$ rbenv shell 2.0.0-p353
$ ruby -e 'p defined? Date'
"constant"
$ ruby -e 'p [Date, Date.class, Date.superclass, Date.included_modules, Date.instance_methods - Object.instance_methods, Date.method(:new).source_location]'
[Date, Class, Object, [Kernel], [], nil]
$ ruby -e 'p defined? DateTime'
nilTime to investigate 😄
I see Time here: http://www.ruby-doc.org/core-2.0.0/
But Date here: http://www.ruby-doc.org/stdlib-2.0.0/
So according to documentation I think your notice is correct.
Date is only available from the stdlib
Sure, the known/expected behaviour is available after a require 'date', but the actual class Date seems already present before that (although empty, as shown above).
I haven't found out why that is yet; maybe some core lib does a forward reference of the Date class, maybe it's a bug, maybe it's an optimization. As I said: time to investigate 😉
I was just searching for a diagram like this and ended up here from reddit. I think @zowal has created a great resource for those of us who want to know all of Ruby core.
Seeing as this is 2 years old now, what's the status on this? What do we need to do to get this on the website?
I'm not against this proposal. but I have no idea to put this diagram to docs.ruby-lang.org.
If you have practical idea and pull request, I will merge it.