Class: Toil::Attributes

Inherits:
Object
  • Object
show all
Defined in:
lib/toil/attributes.rb

Instance Method Summary collapse

Constructor Details

#initialize(hash = {}, &blk) ⇒ Attributes

Returns a new instance of Attributes.



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# File 'lib/toil/attributes.rb', line 7

def initialize(hash = {}, &blk)
  @attributes = hash.each_with_object({}) do |(k, v), h|
    h[k] = v.is_a?(DynamicValue) ? v : DynamicValue.new(v)
  end
  instance_eval(&blk) if block_given?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &blk) ⇒ Object 



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# File 'lib/toil/attributes.rb', line 14

def method_missing(m, *args, &blk)
  __set__(m, args.first, &blk)
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/toil/attributes.rb', line 29

def [](key)
  (v = @attributes[key]) && v.call
end

#__set__(key, value = nil, &blk) ⇒ Object 



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# File 'lib/toil/attributes.rb', line 33

def __set__(key, value = nil, &blk)
  @attributes[key] = DynamicValue.new(value, &blk)
end

#dup(&blk) ⇒ Object 



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# File 'lib/toil/attributes.rb', line 18

def dup(&blk)
  self.class.new(@attributes, &blk)
end

#to_h(overrides = {}) ⇒ Object Also known as: to_hash 



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# File 'lib/toil/attributes.rb', line 22

def to_h(overrides = {})
  @attributes.each_with_object({}) do |(k, v), h|
    h[k] = v.call unless overrides.key?(k)
  end.merge(overrides)
end