Module: RecordLens

Defined in:
lib/ruby-optics/record/record_lens.rb

Class Method Summary collapse

Class Method Details

.build(attribute_name) ⇒ Object 



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# File 'lib/ruby-optics/record/record_lens.rb', line 4

def self.build(attribute_name)
  Lens.new(
    -> (record) { record.send(attribute_name) },
    -> (new_attr_value, record) {
      record.copy_with(attribute_name => new_attr_value)
    }
  )
end