Ruckt

A flexible, type-safe struct generator for Ruby that automatically infers and creates Ruby Struct-like classes from arbitrary data sources with runtime type validation.

Features

• Dynamic Struct Generation: Classes auto-created from hashes/data samples
• Type Safety: Runtime type validation for all attributes
• Nested Structures: Automatic handling of nested hashes
• Query Methods: Automatic boolean attribute methods (e.g., active?)
• Clear Error Messages: Descriptive errors for type mismatches

Installation

Add this line to your application's Gemfile:

gem 'ruckt'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install ruckt

Usage

Basic Example

require 'ruckt'

# Create a struct from a hash
data = {
  name: "Dave",
  age: 40,
  active: true
}

user = Ruckt.new(data)

# Access attributes
user.name      # => "Dave"
user.age       # => 40
user.active?   # => true

# Set attributes
user.name = "John"  # => works fine
user.age = "forty"  # => raises TypeError

Nested Structures

data = {
  name: "Dave",
  location: {
    city: "Sheffield",
    postcode: "S2"
  }
}

person = Ruckt.new(data)

# Access nested attributes
person.location.city      # => "Sheffield"
person.location.postcode  # => "S2"

# Type validation works for nested structures too
person.location.city = 123  # => raises TypeError

Development

After checking out the repo, run bundle install to install dependencies. Then, run rake spec to run the tests.

To install this gem onto your local machine, run bundle exec rake install.

Please ensure that any additions are fully covered by RSpec.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/dave/ruck.

License

The gem is available as open source under the terms of the MIT License.