Module: NullAndVoid::Inflections

Defined in:
lib/null_and_void/inflections.rb

Class Method Summary collapse

Class Method Details

.constantize(camel_cased_word) ⇒ Object 



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# File 'lib/null_and_void/inflections.rb', line 18

def self.constantize(camel_cased_word)
  names = camel_cased_word.split('::')

  # Trigger a builtin NameError exception including the ill-formed constant in the message.
  Object.const_get(camel_cased_word) if names.empty?

  # Remove the first blank element in case of '::ClassName' notation.
  names.shift if names.size > 1 && names.first.empty?

  names.reduce(Object) do |constant, name|
    if constant == Object
      constant.const_get(name)
    else
      candidate = constant.const_get(name)
      next candidate if constant.const_defined?(name, false)
      next candidate unless Object.const_defined?(name)

      # Go down the ancestors to check it it's owned
      # directly before we reach Object or the end of ancestors.
      constant = constant.ancestors.reduce do |const, ancestor|
        break const    if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end

      # owner is in Object, so raise
      constant.const_get(name, false)
    end
  end
end

.deconstantize(path) ⇒ Object 



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# File 'lib/null_and_void/inflections.rb', line 14

def self.deconstantize(path)
  path.to_s[0, path.rindex('::') || 0] # implementation based on the one in facets' Module#spacename
end

.demodulize(path) ⇒ Object 



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# File 'lib/null_and_void/inflections.rb', line 5

def self.demodulize(path)
  path = path.to_s
  if i = path.rindex('::')
    path[(i + 2)..-1]
  else
    path
  end
end