v1.6.0

Changed

• This version uses dry-core 1.0 (@flash-gordon + @solnic)

Compare v1.5.2...v1.6.0

v1.5.2

Fixed

• Coercion failures keep the original error instead of just having a string (@flash-gordon)

Compare v1.5.1...v1.5.2

v1.5.1

Fixed

• Fixed issues with auto-loading Extensions module (issue #183 fixed via #184) (@solnic)

Compare v1.5.0...v1.5.1

v1.5.0

Changed

• Use zeitwerk for auto-loading (@flash-gordon)

Compare v1.4.0...v1.5.0

v1.4.0

Added

• Support for wrapping constructors and fallbacks, see release notes for dry-types 1.5.0 (@flash-gordon)
• Improvements of the attribute DSL, now it's possible to use optional structs as a base class (@flash-gordon)

  class User < Dry::Struct
    attribute :name, Types::String
    attribute :address, Dry::Struct.optional do
      attribute :city, Types::String
    end
  end
  
  User.new(name: "John", address: nil) # => #<User name="John" address=nil>

Compare v1.3.0...v1.4.0

v1.3.0

Added

• Nested structures will reuse type and key transformations from the enclosing struct (@flash-gordon)

  class User < Dry::Struct
    transform_keys(&:to_sym)
  
    attribute :name, Types::String
    attribute :address do
      # this struct will inherit transform_keys(&:to_sym)
      attribute :city, Types::String
    end
  
    # nested struct will _not_ transform keys because a parent
    # struct is given
    attribute :contacts, Dry::Struct do
      attribute :email, Types::String
    end
  end

• Dry::Struct::Constructor finally acts like a fully-featured type (@flash-gordon)

• Dry::Struct.abstract declares a struct class as abstract. An abstract class is used as a default superclass for nested structs (@flash-gordon)

• Struct.to_ast and struct compiler (@flash-gordon)

• Struct composition with Dry::Struct.attributes_from. It's more flexible than inheritance (@waiting-for-dev + @flash-gordon)

  class Address < Dry::Struct
    attribute :city, Types::String
    attribute :zipcode, Types::String
  end
  
  class Buyer < Dry::Struct
    attribute :name, Types::String
    attributes_from Address
  end
  
  class Seller < Dry::Struct
    attribute :name, Types::String
    attribute :email, Types::String
    attributes_from Address
  end

Changed

• [internal] metadata is now stored inside schema (@flash-gordon)

Compare v1.2.0...v1.3.0

v1.2.0

1.2.0 2019-12-20

Changed

• Dry::Struct::Value is deprecated. Dry::Struct instances were never meant to be mutable, we have no support for this. The only difference between Dry::Struct and Dry::Struct::Value is that the latter is deeply frozen. Freezing objects slows the code down and gives you very little benefit in return. If you have a use case for Value, it won't be hard to roll your own solution using ice_nine (flash-gordon)
• In the thread of the previous change, structs now use immutable equalizer. This means Struct#hash memoizes its value after the first invocation. Depending on the case, this may speed up your code significantly (flash-gordon)

Compare v1.1.1...v1.2.0

v1.1.1

1.1.1 2019-10-13

Changed

• Pattern matching syntax is simplified with deconstruct_keys (k-tsj)

  User = Dry.Struct(name: 'string', email: 'string')
  
  user = User.new(name: 'John Doe', email: 'john@acme.org')
  
  case user
  in User(name: 'John Doe', email:)
    puts email
  else
    puts 'Not John'
  end

  See more examples in the specs.

Compare v1.1.0...v1.1.1

v1.1.0

1.1.0 2019-10-07

Added

• Experimental support for pattern matching 🎉 (flash-gordon)

  User = Dry.Struct(name: 'string', email: 'string')
  
  user = User.new(name: 'John Doe', email: 'john@acme.org')
  
  case user
  in User({ name: 'John Doe', email: })
    puts email
  else
    puts 'Not John'
  end

  See more examples in the specs.

Compare v1.0.0...v1.1.0

v1.0.0

1.0.0 2019-04-23

Changed

• valid? and === behave differently, === works the same way Class#=== does and valid? checks if the value can be coerced to the struct (flash-gordon)

Added

• Struct.call now accepts an optional block that will be called on failed coercion. This behavior is consistent with dry-types 1.0. Note that .new doesn't take a block (flash-gordon)

  User = Dry::Struct(name: 'string')
  User.(1) { :oh_no }
  # => :oh_no

Compare v0.7.0...v1.0.0