Ever wanted to ensure that method arguments are of specific type in Ruby?
Well, now you can:
class Person
+[String, Integer]
def initialize(name, age)
@name, @age = name, age
end
+[Time]
def self.valid_dob?(date)
true
end
end
p1 = Person.new "Noah", 20 # all good
p2 = Person.new :Name, 6.66
# ArgumentError: expected argument 'name' to be of type String, argument 'age' to be of type Integer
Person.valid_dob?(Time.now) # all good
Person.valid_dob?(10)
# ArgumentError: expected argument 'date' to be of type TimeAdd this line to your application's Gemfile:
gem 'typed_arguments'
Or install it yourself as:
$ gem install typed_arguments
MIT.