Class: Hash

Inherits:
Object show all
Defined in:
lib/mumukit/core/hash.rb

Instance Method Summary collapse

Instance Method Details

#amend(other) ⇒ Object 



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# File 'lib/mumukit/core/hash.rb', line 19

def amend(other)
  other.merge(self)
end

#deep_diff(other) ⇒ Object 



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# File 'lib/mumukit/core/hash.rb', line 29

def deep_diff(other)
  diff = diff(other)
  deep_diff = diff.dup
  deep_deletions = deep_diff[:deletions]
  deep_additions = deep_diff[:additions]

  diff[:deletions].each do |k, v|
    added_v = diff[:additions][k]
    next if !diff[:additions].include?(k) || v.class != added_v.class
    if Array === v
      values = v.zip(added_v)
      deep_deletions[k] = []
      deep_additions[k] = []
      values.select { |v1, v2| v1 != v2 }.each do |v1, v2|
        if Hash === v1 && Hash === v2
          sub_diff = v1.deep_diff(v2)
          deep_deletions[k] << sub_diff[:deletions]
          deep_additions[k] << sub_diff[:additions]
        else
          deep_deletions[k] << v1
          deep_additions[k] << v2
        end
      end
    elsif Hash === v
      sub_diff = v.deep_diff(added_v)
      deep_deletions[k] = sub_diff[:deletions]
      deep_additions[k] = sub_diff[:additions]
    end
  end

  deep_diff
end

#diff(other) ⇒ Object 



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# File 'lib/mumukit/core/hash.rb', line 23

def diff(other)
  s1 = Set.new(self)
  s2 = Set.new(other)
  { deletions: (s1 - s2).to_h, additions: (s2 - s1).to_h }
end

#dig(key, *keys) ⇒ Object 



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# File 'lib/mumukit/core/hash.rb', line 5

def dig(key, *keys)
  value = self[key]
  if !value.nil? && !keys.empty?
    value.dig(*keys)
  else
    value
  end
end

#to_struct ⇒ Object 



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# File 'lib/mumukit/core/hash.rb', line 15

def to_struct
  OpenStruct.new self
end