CODEWITHSUNDEEP
ruby
borjagvo
borjagvo

Reputation: 2091

Where is the documentation of 'module' method in Ruby?

Whenever you define a new module you call the method module:

module A
...
end

I've looked for it in https://ruby-doc.org/core-2.7.2/ but I didn't find it. Where is it?

Upvotes: 0

Views: 173

Answers (2)

Todd A. Jacobs
Todd A. Jacobs

Reputation: 84453

Module is Both a Keyword and an Object

While module is certainly a defined Ruby keyword, the underlying implementation is more complex. Pragmatically, a Module is a class-like Object that serves as the parent class of Class. It provides namespacing, and offers some additional features for mixin and module/class composition.

AFAICT, the syntax for creating a Module definition (rather than instantiating it) is handled by the RACC grammar, so if you’re looking for implementation details you may want to explore RACC, Ripper, and other interpreter elements to determine how the keyword actually implements the module definition.

Upvotes: 2

Holger Just
Holger Just

Reputation: 55908

The module keyword is exactly that: a keyword, not a method. Since this is part of Ruby's language syntax it is not documented along with defined classes and their methods, but in its syntax documentation at

https://ruby-doc.org/core-2.7.2/doc/syntax/modules_and_classes_rdoc.html#label-Modules

Upvotes: 3

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