Class: Mutant::Transform::JSON Private

Inherits:
Object
  • Object
show all
Defined in:
lib/mutant/transform/json.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Bidirectional JSON transform

Wraps a pair of dump/load transforms and optionally adds JSON string serialization via .build

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.build(dump:, load:) ⇒ JSON

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Build a JSON transform that wraps raw transforms with JSON.parse/generate

rubocop:disable Metrics/MethodLength

Parameters:

Returns:



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# File 'lib/mutant/transform/json.rb', line 19

def self.build(dump:, load:)
  new(
    dump_transform: Sequence.new(
      steps: [
        dump,
        Success.new(block: ::JSON.public_method(:generate))
      ]
    ),
    load_transform: Sequence.new(
      steps: [
        Exception.new(error_class: ::JSON::ParserError, block: ::JSON.public_method(:parse)),
        load
      ]
    )
  )
end

.for_anima(klass) ⇒ JSON

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Build a JSON transform for simple Anima objects with JSON-primitive fields

Parameters:

  • klass (Class)

Returns:



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# File 'lib/mutant/transform/json.rb', line 42

def self.for_anima(klass)
  new(
    dump_transform: Success.new(block: ->(object) { object.to_h.transform_keys(&:to_s) }),
    load_transform: Success.new(block: ->(hash) { klass.new(**hash.transform_keys(&:to_sym)) })
  )
end

Instance Method Details

#dump(object) ⇒ Either<Error, Object>

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Dump object to hash or JSON string

Parameters:

  • object (Object)

Returns:



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# File 'lib/mutant/transform/json.rb', line 54

def dump(object)
  dump_transform.call(object)
end

#load(input) ⇒ Either<Error, Object>

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Load object from hash or JSON string

Parameters:

  • input (Object)

Returns:



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# File 'lib/mutant/transform/json.rb', line 63

def load(input)
  load_transform.call(input)
end