Module: NRSER::Props::Immutable::Vector

Included in:
I8::Struct::Vector, Meta::Source::Location
Defined in:
lib/nrser/props/immutable/vector.rb

Overview

Mixin for classes that extend Hamster::Vector and will use itself as the property value storage, requiring that property keys be non-negative integers.

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

STORAGE =

Constants

NRSER::Props::Storage::Key.new immutable: true, key_type: :index

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

Module Methods



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# File 'lib/nrser/props/immutable/vector.rb', line 40

def self.included base
  unless base < Hamster::Vector
    raise binding.erb <<~END
      This class is only for including in {Hamster::Vector} subclasses!
    END
  end
  
  base.include NRSER::Props
  base.metadata.storage STORAGE
  base.metadata.freeze
  
  base.extend ClassMethods
end

Instance Method Details

#initialize(values = {}) ⇒ Object

Since including classes are using themselves as storage, we need to tap into the ‘#initialize` chain in order to load property values from sources and pass an Array up to the super-method to instantiate the Hamster::Vector.



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# File 'lib/nrser/props/immutable/vector.rb', line 92

def initialize values = {}
  super_values = []
  
  self.class.metadata.each_primary_prop_value_from( values ) { |prop, value|
    super_values[prop.index] = value
  }
  
  super super_values
  
  # Check additional type invariants
  self.class.invariants.each do |type|
    type.check self
  end
end