Class: Core::Boundary::Reference

Inherits:
Object
  • Object
show all
Includes:
Behavior::Normalization, Behavior::Validation, Behavior::Verifiable, Is::Inspectable
Defined in:
lib/core/boundary/reference.rb

Overview

public

Constant Summary collapse

UNDEFINED = 
Object.new

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Behavior::Verifiable

#optional, #required

Methods included from Behavior::Validation

#validate

Methods included from Behavior::Normalization

#normalize

Constructor Details

#initialize(reference, message: nil, required: false, default: UNDEFINED, type: Core::Type::Object) ⇒ Reference

Returns a new instance of Reference.



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# File 'lib/core/boundary/reference.rb', line 22

def initialize(reference, message: nil, required: false, default: UNDEFINED, type: Core::Type::Object)
  @reference = reference.to_sym
  @stringified = reference.to_s
  @message = message
  @required = required
  @default = default
  @type = type
end

Instance Attribute Details

#reference ⇒ Object (readonly)

Returns the value of attribute reference.



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# File 'lib/core/boundary/reference.rb', line 31

def reference
  @reference
end

Instance Method Details

#resolve(object, result:) ⇒ Object

public


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# File 'lib/core/boundary/reference.rb', line 35

def resolve(object, result:)
  value_undefined = false

  catch :__core_boundary_value_error__ do
    value = case object
    when Hash
      object.fetch(@reference) {
        object.fetch(@stringified) {
          if @required
            result.errors.add(@reference, @message)
            throw :__core_boundary_value_error__
          elsif @default != UNDEFINED
            @default.clone
          else
            value_undefined = true
          end
        }
      }
    else
      if object.respond_to?(@reference)
        object.__send__(@reference)
      elsif @required
        result.errors.add(@reference, @message)
        throw :__core_boundary_value_error__
      elsif @default != UNDEFINED
        @default.clone
      else
        value_undefined = true
      end
    end

    unless value_undefined
      begin
        value = @type.build(@normalizer.call(value))
      rescue Core::Type::CheckFailed
        result.errors.add(@reference, :type_failure)
        throw :__core_boundary_value_error__
      end
    end

    @validator.call(value, result: result, reference: @reference)

    unless value_undefined
      result[@reference] = if @verifier.empty?
        value
      else
        nested = @verifier.verify(value)
        result.errors.merge!(*@reference, nested.errors)
        nested.values
      end
    end
  end
end