Class: MightyJSON::Type::Object

Inherits:
Object
  • Object
show all
Defined in:
lib/mighty_json/type.rb

Instance Method Summary collapse

Constructor Details

#initialize(fields) ⇒ Object

Returns a new instance of Object.



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# File 'lib/mighty_json/type.rb', line 140

def initialize(fields)
  @fields = fields
end

Instance Method Details

#compile(var:, path:) ⇒ Object 



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# File 'lib/mighty_json/type.rb', line 144

def compile(var:, path:)
  v = var.cur
  keys = @fields.keys.map(&:inspect)

  result = var.next
  is_fixed = @fields.values.none?{|type| type.is_a?(Optional) || (type.is_a?(Base) && type.type == :ignored)}

  <<~END
    begin
      raise Error.new(path: #{path}, type: #{self.to_s.inspect}, value: object) unless #{v}.is_a?(Hash)

      if #{!is_fixed} || #{@fields.size} != #{v}.size
        #{v}.each do |key, value|
          next if #{keys.map{|key| "#{key} == key"}.join('||')}
          raise UnexpectedFieldError.new(path: #{path.inspect} + [key], value: #{v}) # TOOD: optimize path
        end
      end

      {}.tap do |#{result}|
        #{
          @fields.map do |key, type|
            new_var = var.next
            <<~END2
              #{new_var} = #{v}.fetch(#{key.inspect}, none)
              v = #{type.compile(var: var, path: path + [key])}
              if !none.equal?(v) &&
                 #{!NONE.equal?(type)} &&
                 !(#{type.is_a?(Optional)} && none.equal?(#{new_var}))
                #{result}[#{key.inspect}] = v
              end
            END2
          end.join("\n")
        }
      end
    end
  END
end

#to_s ⇒ Object 



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# File 'lib/mighty_json/type.rb', line 182

def to_s
  fields = []

  @fields.each do |name, type|
    fields << "#{name}: #{type}"
  end

  "object(#{fields.join(', ')})"
end