Class: Algebrick::Serializers2::AbstractConverter

Inherits:

Object

• Object
• Algebrick::Serializers2::AbstractConverter

show all

Includes:

TypeCheck

Defined in:

lib/algebrick/serializers2/abstract.rb

Constant Summary

CannotConvert =

Algebrick.atom

Class Method Summary (collapse)

• + (Object) converts(from, to)
• + (Object) from
• + (Object) to

Instance Method Summary (collapse)

• - (Object) call(data, from, options = {})

  returns data, format.

• - (Object) cannot_convert private
• - (Object) convert(data, options = {})
• - (Object) from
• - (Object) to

Methods included from TypeCheck

#Child!, #Child?, #Match!, #Match?, #Type!, #Type?, error

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# File 'lib/algebrick/serializers2/abstract.rb', line 20

def self.converts(from, to)
  @from = from
  @to   = to
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 25

def self.from
  @from || (superclass.from if superclass < AbstractConverter) or
      raise('from not defined')
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 30

def self.to
  @to || (superclass.to if superclass < AbstractConverter) or
      raise('to not defined')
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 48

def call(data, from, options = {})
  if from == self.from
    converted_data = catch(CannotConvert) { convert data, options }
    return converted_data, to if CannotConvert != converted_data
  end
  return data, from
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 60

def cannot_convert
  throw CannotConvert, CannotConvert
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 43

def convert(data, options = {})
  raise NotImplementedError
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 35

def from
  self.class.from
end

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# File 'lib/algebrick/serializers2/abstract.rb', line 39

def to
  self.class.to
end