class Array

Array instances are extened with two methods only: Fieldable#fields= and Fieldable#fields. only when Fieldable#fields= is called will the full set of ArrayFields methods auto-extend the Array instance. the Array class also has added a class generator when the fields are known apriori.

Public Class Methods

[](*elements) click to toggle source

# File lib/arrayfields.rb, line 374
def self.[] *elements
  array = new
  array.replace elements
  array
end

fields(*fields, &block) click to toggle source

# File lib/arrayfields.rb, line 381
def fields *fields, &block
  (( array = new(&block) )).fields = fields.map{|x| Enumerable === x ? x.to_a : x}.flatten
  array
end

initialize(*a, &b) click to toggle source

Calls superclass method

# File lib/arrayfields.rb, line 369
def initialize *a, &b
  super
ensure
  @fieldset = self.class.const_get :FIELDS
end

struct(*fields) click to toggle source

# File lib/arrayfields.rb, line 347
      def struct *fields
        fields = fields.flatten
        Class.new(self) do
          include ArrayFields
          const_set :FIELDS, ArrayFields::FieldSet.new(fields)
          fields.each do |field|
            field = field.to_s
            if field =~ %r/^[a-zA-Z_][a-zA-Z0-9_]*$/
              begin
                module_eval <<-code
                  def #{ field } *a
                    a.size == 0 ? self['#{ field }'] : (self.#{ field } = a.shift) 
                  end
                  def #{ field }= value
                    self['#{ field }'] = value
                  end
                code
              rescue SyntaxError
                :by_ignoring_it
              end
            end
          end
          def initialize *a, &b
            super
          ensure
            @fieldset = self.class.const_get :FIELDS
          end
          def self.[] *elements
            array = new
            array.replace elements
            array
          end
        end
      end