rubocop

https://github.com/bbatsov/rubocop

Ruby

A Ruby static code analyzer, based on the community Ruby style guide.

RuboCop::AST::Node#each_node

Calls the given block for the receiver and each descendant node in
depth-first order.
If no block is given, an `Enumerator` is returned.

This method would be useful when you treat the receiver node as the root
of a tree and want to iterate over all nodes in the tree.

Source | Google | Stack overflow

Edit

git clone [email protected]:bbatsov/rubocop.git

cd rubocop

open lib/rubocop/ast/node.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-RuboCop--AST--Node-each_node-for-pr

# Commit to git

git add lib/rubocop/ast/node.rbgit commit -m "better docs for RuboCop::AST::Node#each_node"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-RuboCop--AST--Node-each_node-for-pr

hub pull-request

# Celebrate!