Class: Attrify::VariantRegistry

Inherits:
Object
  • Object
show all
Includes:
Helpers
Defined in:
lib/attrify/variant_registry.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helpers

#compute_attributes, #deep_merge_hashes, #deep_merge_hashes!, #execute_operation

Constructor Details

#initialize(base: {}, variants: {}, defaults: {}, compounds: []) ⇒ VariantRegistry

Returns a new instance of VariantRegistry.



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# File 'lib/attrify/variant_registry.rb', line 17

def initialize(base: {}, variants: {}, defaults: {}, compounds: [])
  self.base = base
  self.variants = variants
  self.defaults = defaults
  self.compounds = compounds
  @cache = {}
end

Instance Attribute Details

#base ⇒ Object

Returns the value of attribute base.



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# File 'lib/attrify/variant_registry.rb', line 15

def base
  @base
end

#compounds ⇒ Object

Returns the value of attribute compounds.



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# File 'lib/attrify/variant_registry.rb', line 15

def compounds
  @compounds
end

#defaults ⇒ Object

Returns the value of attribute defaults.



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# File 'lib/attrify/variant_registry.rb', line 15

def defaults
  @defaults
end

#variants ⇒ Object

Returns the value of attribute variants.



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# File 'lib/attrify/variant_registry.rb', line 15

def variants
  @variants
end

Instance Method Details

#fetch(**args) ⇒ Object

Fetch the correct variant, with caching



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# File 'lib/attrify/variant_registry.rb', line 42

def fetch(**args)
  # Split args into variant and operations
  variant_keys = variants.keys

  variant_args = {}
  operation_args = {}

  args.each do |key, value|
    if variant_keys.include?(key)
      variant_args[key] = value #Array(value).join("_").to_sym
    else
      operation_args[key] = value
    end
  end

  operations = Parser.parse_slots(operation_args)

  cache_key = generate_cache_key(variant_args)

  # Return the cached result if it exists
  unless @cache.key?(cache_key)
    @cache[cache_key] = compute_variant(variant: variant_args)
  end

  @cache[cache_key].adjust(operations)
end

#initialize_copy(orig) ⇒ Object 



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# File 'lib/attrify/variant_registry.rb', line 69

def initialize_copy(orig)
  super
  @base = @base.dup
  @variants = @variants.dup
  @defaults = @defaults.dup
  @compounds = @compounds.dup
  @cache = {}
end