Class: RShade::Serializer::Traversal

Inherits:
Object
  • Object
show all
Defined in:
lib/rshade/serializer/traversal.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(custom_types = {}) ⇒ Traversal

Returns a new instance of Traversal.



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# File 'lib/rshade/serializer/traversal.rb', line 8

def initialize(custom_types = {})
  @types = default_types.merge(custom_types)
end

Instance Attribute Details

#types ⇒ Object (readonly)

Returns the value of attribute types.



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# File 'lib/rshade/serializer/traversal.rb', line 6

def types
  @types
end

Instance Method Details

#call(hash) ⇒ Object 



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# File 'lib/rshade/serializer/traversal.rb', line 12

def call(hash)
  new_val = {}
  hash.each do |name, value|
    new_val[name] = traverse(value)
  end
  new_val
end

#default_types ⇒ Object 



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# File 'lib/rshade/serializer/traversal.rb', line 24

def default_types
  {
    default: lambda(&:to_s),
    Integer => ->(value) { value },
    Float => ->(value) { value },
    Numeric => ->(value) { value },
    String => ->(value) { value },
    Hash => lambda do |value|
      hash = {}
      value.each do |k, v|
        hash[k] = traverse(v)
      end
      hash
    end,
    Array => lambda do |value|
      value.map { |item| traverse(item) }
    end
  }
end

#merge!(new_types) ⇒ Object 



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# File 'lib/rshade/serializer/traversal.rb', line 20

def merge!(new_types)
  @types.merge!(new_types)
end

#traverse(value) ⇒ Object 



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# File 'lib/rshade/serializer/traversal.rb', line 44

def traverse(value)
  klass = Class
  klass = value.class unless value.is_a?(Class)
  serializer = types[klass]
  serializer ||= types[:default]
  serializer.call(value)
end