rubocop

https://github.com/bbatsov/rubocop

Ruby

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

RuboCop::AST::Node#updated

Override `AST::Node#updated` so that `AST::Processor` does not try to
mutate our ASTs. Since we keep references from children to parents and
not just the other way around, we cannot update an AST and share
identical subtrees. Rather, the entire AST must be copied any time any
part of it is changed.

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-updated-for-pr

# Commit to git

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

# 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-updated-for-pr

hub pull-request

# Celebrate!