Class: Module

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

Instance Method Summary collapse

Instance Method Details

#lazy_accessor(*syms, &blk) ⇒ Object 



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# File 'lib/laissez.rb', line 31

def lazy_accessor(*syms, &blk)
  lazy_reader(*syms, &blk)
  lazy_writer(*syms, &blk)
end

#lazy_reader(*syms) ⇒ Object 



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# File 'lib/laissez.rb', line 4

def lazy_reader(*syms)
  syms.map(&:to_s).each do |sym|
    raise NameError.new("invalid attribute name: #{sym}") unless sym =~ /^[_A-Za-z]\w*$/
    class_eval("      def \#{sym}(&block)\n        return self.\#{sym}=(block) if block_given?\n        \#{sym} = @\#{sym}\n        \#{sym} = \#{sym}.call if \#{sym}.is_a? Proc\n        \#{sym}\n      end\n    EOS\n  end\nend\n", __FILE__, __LINE__ + 1)

#lazy_writer(*syms) ⇒ Object 



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# File 'lib/laissez.rb', line 18

def lazy_writer(*syms)
  syms.map(&:to_s).each do |sym|
    raise NameError.new("invalid attribute name: #{sym}") unless sym =~ /^[_A-Za-z]\w*$/
    class_eval("      @\#{sym} = nil unless defined? @\#{sym}\n\n      def \#{sym}=(obj)\n        @\#{sym} = obj\n      end\n    EOS\n  end\nend\n", __FILE__, __LINE__ + 1)