Class: Necromancer::Converter Private

Inherits:

Object

• Object
• Necromancer::Converter

Defined in:

lib/necromancer/converter.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Abstract converter used internally as a base for other converters

Direct Known Subclasses

ArrayConverters::ArrayToBooleanArrayConverter, ArrayConverters::ArrayToFloatArrayConverter, ArrayConverters::ArrayToIntegerArrayConverter, ArrayConverters::ArrayToNumericArrayConverter, ArrayConverters::ArrayToSetConverter, ArrayConverters::ObjectToArrayConverter, ArrayConverters::StringToArrayConverter, ArrayConverters::StringToBooleanArrayConverter, ArrayConverters::StringToFloatArrayConverter, ArrayConverters::StringToIntegerArrayConverter, ArrayConverters::StringToNumericArrayConverter, BooleanConverters::BooleanToIntegerConverter, BooleanConverters::IntegerToBooleanConverter, BooleanConverters::StringToBooleanConverter, DateTimeConverters::StringToDateConverter, DateTimeConverters::StringToDateTimeConverter, DateTimeConverters::StringToTimeConverter, HashConverters::StringToBooleanHashConverter, HashConverters::StringToFloatHashConverter, HashConverters::StringToHashConverter, HashConverters::StringToIntegerHashConverter, HashConverters::StringToNumericHashConverter, NullConverter, NumericConverters::IntegerToStringConverter, NumericConverters::StringToFloatConverter, NumericConverters::StringToIntegerConverter, NumericConverters::StringToNumericConverter, RangeConverters::StringToRangeConverter

Instance Attribute Summary

• #config ⇒ Object readonly private

  protected.

• #convert ⇒ Object private
• #source ⇒ Object private
• #target ⇒ Object private

Class Method Summary

• .create(&block) ⇒ Object private

  Creates anonymous converter.

Instance Method Summary

• #call ⇒ Object private

  Run converter.

• #initialize(source = nil, target = nil) ⇒ Converter constructor

  Create an abstract converter.

• #raise_conversion_type(value) ⇒ Object private

  Fail with conversion type error.

Constructor Details

#initialize(source = nil, target = nil) ⇒ Converter

Create an abstract converter

Parameters:

• source (Object) (defaults to: nil) —

  the source object type

• target (Object) (defaults to: nil) —

  the target object type

# File 'lib/necromancer/converter.rb', line 19

def initialize(source = nil, target = nil)
  @source = source if source
  @target = target if target
  @config ||= Configuration.new
end

Instance Attribute Details

#config ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

protected

# File 'lib/necromancer/converter.rb', line 62

def config
  @config
end

#convert ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

# File 'lib/necromancer/converter.rb', line 58

def convert
  @convert
end

#source ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

# File 'lib/necromancer/converter.rb', line 54

def source
  @source
end

#target ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

# File 'lib/necromancer/converter.rb', line 56

def target
  @target
end

Class Method Details

.create(&block) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Creates anonymous converter

# File 'lib/necromancer/converter.rb', line 35

def self.create(&block)
  Class.new(self) do
    define_method(:initialize) { |*a| block.(self, *a) }

    define_method(:call) { |value| convert.(value) }
  end.new
end

Instance Method Details

#call ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Run converter

Raises:

• (NotImplementedError)

# File 'lib/necromancer/converter.rb', line 28

def call(*)
  raise NotImplementedError
end

#raise_conversion_type(value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Fail with conversion type error

Parameters:

• value (Object) —

  the value that cannot be converted

Raises:

• (ConversionTypeError)

# File 'lib/necromancer/converter.rb', line 49

def raise_conversion_type(value)
  raise ConversionTypeError, "'#{value}' could not be converted " \
                             "from `#{source}` into `#{target}`"
end