Module: Mutant::Util Private

Defined in:
lib/mutant/util.rb

Overview

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

Utility methods

Class Method Summary collapse

Class Method Details

.max_one(array) ⇒ 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.

Return only element in array if it contains max one member

rubocop:disable Lint/EmptyInPattern

Parameters:

  • array (Array)

Returns:

  • (Object) —

    first entry

  • (nil) —

    if empty



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# File 'lib/mutant/util.rb', line 23

def self.max_one(array)
  case array
  in []
  in [value]
    value
  else
    fail Unparser::Util::SizeError, "expected size to be max 1 but size was #{array.size}"
  end
end

.one(array) ⇒ 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.

Return only element in array if it contains exactly one member

Parameters:

  • array (Array)

Returns:

  • (Object) —

    first entry



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# File 'lib/mutant/util.rb', line 11

def self.one(array)
  Unparser::Util.one(array)
end