Does Crystal have attribute accessor methods like in Ruby?

Question

Does the Crystal programming language have an equivalent to Ruby's attribute accessor methods? More specifically, does Crystal have equivalents to the following?

• attr_accessor
• attr_reader
• attr_writer

?

Answer 1

Yes, they're defined as macro.

Basically:

ruby	crystal
attr_accessor	property
attr_reader	getter
attr_writer	setter

Example

class Person
  property name
end

is equal to

class Person
  def name=(@name)
  end

  def name
    @name
  end
end

For more details see the Reference