Class: Foobara::Value::Transformer

Inherits:
Processor
  • Object
show all
Defined in:
foobara-0.0.110/projects/value/src/transformer.rb

Defined Under Namespace

Classes: Runner

Instance Attribute Summary

Attributes inherited from Processor

#created_in_namespace, #declaration_data, #parent_declaration_data

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Processor

#always_applicable?, #applicable?, #attribute_name, #build_error, default_declaration_data, #dup_processor, error_class, #error_context, #error_message, #error_path, #foobara_manifest, #initialize, #inspect, instance, #method_missing, #name, new_with_agnostic_args, #possible_errors, #priority, #process_outcome, #process_outcome!, #process_value!, processor_name, requires_declaration_data?, requires_parent_declaration_data?, #respond_to_missing?, #runner, symbol

Methods included from IsManifestable

#foobara_domain, #foobara_manifest, #foobara_organization, #scoped_clear_caches

Methods included from Concern

foobara_class_methods_module_for, foobara_concern?, included

Constructor Details

This class inherits a constructor from Foobara::Value::Processor

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Foobara::Value::Processor

Class Method Details

.create(options) ⇒ Object 



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# File 'foobara-0.0.110/projects/value/src/transformer.rb', line 21

def create(options)
  subclass(**options).instance
end

.error_classes ⇒ Object 



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# File 'foobara-0.0.110/projects/value/src/transformer.rb', line 17

def error_classes
  []
end

.foobara_manifest ⇒ Object 



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# File 'foobara-0.0.110/projects/value/src/transformer.rb', line 13

def foobara_manifest
  super.merge(processor_type: :transformer)
end

.subclass(name: nil, **options) ⇒ Object

TODO: make transform the first argument for convenience



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# File 'foobara-0.0.110/projects/value/src/transformer.rb', line 26

def subclass(name: nil, **options)
  arity_zero = %i[always_applicable? priority]
  arity_one = %i[applicable? transform]
  allowed = arity_zero + arity_one

  invalid_options = options.keys - allowed

  unless invalid_options.empty?
    # :nocov:
    raise ArgumentError, "Invalid options #{invalid_options} expected only #{allowed}"
    # :nocov:
  end

  name ||= "#{self.name}::Anon#{SecureRandom.hex}"

  unless name.include?(":")
    name = "#{self.name}::#{name}"
  end

  Util.make_class(name, self) do
    arity_one.each do |method_name|
      if options.key?(method_name)
        method = options[method_name]

        define_method method_name do |value|
          method.call(value)
        end
      end
    end

    arity_zero.each do |method_name|
      if options.key?(method_name)
        value = options[method_name]

        define_method method_name do
          value
        end
      end
    end
  end
end

Instance Method Details

#process_value(value) ⇒ Object 



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# File 'foobara-0.0.110/projects/value/src/transformer.rb', line 75

def process_value(value)
  if applicable?(value)
    value = transform(value)
  end

  Outcome.success(value)
end

#transform(_value) ⇒ Object 



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# File 'foobara-0.0.110/projects/value/src/transformer.rb', line 69

def transform(_value)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end