Ruby developers who prefer a few tools that provide strong type checking. This is particularly useful if you are working in a larger ruby codebase.
TypedClass provides a strongly typed class for ruby. The classes are very simple to define and provide immutable classes with convenient constructors and very strong type validation for values.
Note that TypedClasses can only inherit from the class TypedClass. See examples/inheritance.rb for more information.
gem install typed-class
require 'typed_class'
class User < TypedClass
field :user_id, Integer
field :email, String
end
user = User.new(123, "[email protected]")
puts "Hello user_id[%s] with email[%s]" % [user.user_id, user.email]
=> Hello user_id[123] with email[[email protected]]
class User < TypedClass
field :user_id, Integer
field :email, String
field :name, option(String)
field :gender, option(String), :default => 'Unknown'
end
user = User.new(123, "[email protected]", :name => "Mike")
puts user.inspect
=> #<User:0x10266be28 @name="Mike", @user_id=123, @email="[email protected]", @gender="Unknown">
class User < TypedClass
field :user_id, Integer
field :email, String
after_initialize do
puts "Hello user_id[%s] email[%s]" % [user_id, email]
if email == ""
raise "Email cannot be blank"
end
end
end
User.new(123, "[email protected]")
=> Hello user_id[123] email[[email protected]]
=> #<User:0x1026030f8 @name=nil, @user_id=123, @email="[email protected]", @gender="Unknown">
More examples can be found in the examples directory.
Copyright 2013 Gilt Groupe, Inc.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.