Class: Declarative::Defaults::Merge

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

Overview

Private! Don’t use this anywhere. Merges two hashes and joins same-named arrays. This is often needed when dealing with defaults.

Class Method Summary collapse

Class Method Details

.call(a, b) ⇒ Object 



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# File 'lib/declarative/defaults.rb', line 32

def self.call(a, b)
  a = a.dup
  b.each do |k, v|
    a[k] = v and next unless a.has_key?(k)
    a[k] = v and next unless a[k].is_a?(Array)
    a[k] = a[k] += v # only for arrays.
  end

  a
end