Module: NRSER::Props::Immutable::HashVariable

Included in:
Base
Defined in:
lib/nrser/props/immutable/hash_variable.rb

Overview

Mix-in to store property values in an immutable Hamster::Hash instance in an instance variable.

This is basically an improvement of how the original props implementation worked.

Defined Under Namespace

Classes: Base

Constant Summary collapse

KEY_STORAGE = 
NRSER::Props::Storage::Key.new immutable: true, key_type: :name
INSTANCE_VARIABLE_STORAGE = 
NRSER::Props::Storage::InstanceVariable.new sub_storage: KEY_STORAGE

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

Class Methods



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# File 'lib/nrser/props/immutable/hash_variable.rb', line 43

def self.included base
  base.include NRSER::Props
  base.metadata.storage INSTANCE_VARIABLE_STORAGE
  base.metadata.freeze
end

Instance Method Details

#initialize_props(values = {}) ⇒ Object

Instantiate a new ‘NRSER::Props::Immutable::Vector`.



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# File 'lib/nrser/props/immutable/hash_variable.rb', line 54

def initialize_props values = {}
  prop_values = {}
  
  self.class.metadata.each_primary_prop_value_from( values ) { |prop, value|
    prop_values[prop.name] = value
  }
  
  instance_variable_set self.class.metadata.storage.var_name,
                        Hamster::Hash.new( values )

  # Check additional type invariants
  self.class.invariants.each do |type|
    type.check self
  end
end