Class: TfgSupport::DeepHashAccessor

Inherits:
Object
  • Object
show all
Defined in:
lib/tfg_support/deep_hash_accessor.rb

Instance Method Summary collapse

Constructor Details

#initialize(hash) ⇒ DeepHashAccessor

Returns a new instance of DeepHashAccessor.



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# File 'lib/tfg_support/deep_hash_accessor.rb', line 4

def initialize(hash)
  @hash = hash
end

Instance Method Details

#[](*keys) ⇒ Object 



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# File 'lib/tfg_support/deep_hash_accessor.rb', line 8

def [](*keys)
  target = @hash

  keys.each do |key|
    return nil unless target.respond_to?(:[])
    target = target[key]
  end
  target
end

#[]=(*keys) ⇒ Object 



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# File 'lib/tfg_support/deep_hash_accessor.rb', line 18

def []=(*keys)
  value = keys.pop()
  set_key = keys.pop()

  target = @hash
  keys.each do |key|
    hash = target[key]
    if hash.nil?
      hash = {}
      target[key] = hash
    end
    target = hash
  end

  target[set_key] = value
end