Run-time type checker and transformer for Ruby

Type-checked set and array

strong_csv is a type checker for a CSV file. It lets developers declare types for each column to ensure all cells are satisfied with desired types.

Group your checkboxes like grouped select via “grouped_collection_select” in Rails. This gem adds a new Formtastic input type “grouped_check_boxes”, that helps you group long lists of checkboxes.

This gem adds Mobility plugin, which can be turned on for Rails model, and will check types of values passed to setters.

The suckysockets gem provides the user with the opportunity to check whether a power adapter is needed when travelling from one country to another. 1. How to install the gem gem install suckysockets 2. How to use it To run the program just type 'suckysockets' in the command line. You will be asked in which country you currently live. Please type the country name and press 'enter'. Next you need to enter your destination country and press 'enter' again. Then you receive the result telling you whether or nor you need an adapter travelling from you current country to the destination country. Three outcomes are possible: - an adapter is not needed. That is the case when all plugs common in your country of living fit all of the sockets in your destination country. - an adapter is definetely needed. That is the case when none of the plugs in your home country fit any of the sockets in your destination country. - an adapter is needed in certain cases: when some of your home country plugs fit some of the sockets, but some plugs don't. In that case you will get a detailed response telling you for which particular cases an adapter is needed.

Allows for easy YAML parsing and type checking, as well as generators

yae provides a simple enum class (enumerated type) implementation (Yae::Enum) that can be used to abstract a set of values. It also provides methods to check values existence in the enum and to iterate over its contents.

A new check for puppet-lint that validates that all parameters are typed.

A puppet-lint plugin to check that Optional class/defined type parameters don't default to anything other than `undef`.

Experimental type checker

Allows you check if an object match a class expression. It is typically used to check the type of method paraameters. It is an alternative to using Ruby-3 .rbs files but with a different syntax and only dynamic checks Typically you'll include the Constrain module and use #constrain to check the type of method parameters: include Constrain # f takes a String and an array of Integer objects. Raise a Constrain::Error # if parameters doesn't have the expected types def f(a, b) constrain a, String constrain b, [Integer] end Constrain works with ruby-2 (and maybe ruby-3)

Have 3-state radiobuttons instead of a 2-state checkbox for your Boolean columns which can store NULL. This gem: 1. Provides a custom Formtastic input type `:tristate_radio` which renders 3 radios (“Yes”, “No”, “Unset”) instead of a checkbox (only where you put it). 2. Teaches Rails recognize `"null"` and `"nil"` param values as `nil` 3. Encourages you to add translations for ActiveAdmin “status tag” so that `nil` be correctly translated as “Unset” instead of “False”. Does not change controls, you need to turn it on via `as: :tristate_radio` option.

Create resources with run-time payload type checking and link validation

All the flexibility of a Ruby Struct, but with type checking on its properties. Also benefit from being able to define complex types using RBS type notation.

A dynamic type checker for gRPC methods

A type coercion lib works with Sorbet's static type checker and type definitions; raises an error if the coercion fails.

# mdtoc - Markdown Table of Contents Read Markdown files and output a table of contents. ## Installation Requirements: * [Ruby](https://www.ruby-lang.org/en/) (see [.ruby-version](./.ruby-version)) ``` $ gem install mdtoc ``` ## Usage ``` $ mdtoc --help Usage: mdtoc [options] files or directories... -h, --help Show this message -o, --output PATH Update a table of contents in the file at PATH -a, --[no-]append Append to the --output file if a <!-- mdtoc --> tag isn't found -c, --[no-]create Create the --output file if it does not exist ``` 1. Add a `<!-- mdtoc -->` tag to a Markdown file. ``` $ echo '<!-- mdtoc -->` >> README.md ``` 2. Run `mdtoc` and specify input files or directories (eg. the "test/samples" directory) and an output file (eg. "README.md"). ``` $ mdtoc -aco README.md test/samples ``` ## Example Rakefile Create a `Rakefile` with the contents below, then run [`rake`](https://github.com/ruby/rake) to: * `git pull` * `git add` any *.md files * Run `mdtoc` to update the generated table of contents in the ./README.md file * Git commit and push any changes ``` task default: %w[mdtoc] desc 'Update Markdown table of contents and push changes to the git repository' task :mdtoc do |t| command = <<~END set -e git pull if [ -n "$(git diff --name-only --diff-filter=U)" ]; then echo 'Error: conflicts exist' >&2 exit 1 fi mdtoc --append --create --output README.md docs/ git add *.md **/*.md git commit -m 'Update TOC' git push END %x|#{command}| end ``` See [andornaut/til](https://github.com/andornaut/til/blob/master/Rakefile) for an example. ## Development ### Installation Requirements: * [Bundler](https://bundler.io/) ``` # Install dependencies $ bundle ``` ### Usage ``` # List rake tasks $ rake -T rake build # Build mdtoc-0.0.2.gem into the pkg directory rake default # Run the build, rubocop:auto_correct, sorbet and test tasks rake install # Build and install mdtoc-0.0.2.gem into system gems rake install:local # Build and install mdtoc-0.0.2.gem into system gems without... rake release[remote] # Create tag v0.0.2 and build and push mdtoc-0.0.2.gem to ru... rake rubocop # Run RuboCop rake rubocop:auto_correct # Auto-correct RuboCop offenses rake sorbet # Run the Sorbet type checker rake test # Run tests # Run mdtoc with test inputs $ ruby -Ilib bin/mdtoc test/samples # Run mdtoc with test inputs, and write to a newly created output file $ f=$(mktemp) && ruby -Ilib bin/mdtoc -aco ${f} test/samples ; cat ${f} ```

Type Checker for Ruby at runtime using YARD

TStruct is type checked Struct