Class: Algebrick::ProductConstructors::Abstract

Inherits:
Object
  • Object
show all
Extended by:
TypeCheck
Includes:
Value
Defined in:
lib/algebrick/product_constructors/abstract.rb

Direct Known Subclasses

Basic, Named

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from TypeCheck

Child!, Child?, Match!, Match?, Type!, Type?

Methods included from Value

#inspect, #pretty_print, #to_s

Methods included from Matching

#any, #match, #match?, #on

Constructor Details

#initialize(*fields) ⇒ Abstract

Returns a new instance of Abstract.



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# File 'lib/algebrick/product_constructors/abstract.rb', line 22

def initialize(*fields)
  if fields.size == 1 && fields.first.is_a?(Hash)
    fields = type.field_names.map { |k| fields.first[k] }
  end
  @fields = fields.zip(self.class.type.fields).map { |field, type| Type! field, type }.freeze
end

Instance Attribute Details

#fields ⇒ Object (readonly)

Returns the value of attribute fields.



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# File 'lib/algebrick/product_constructors/abstract.rb', line 20

def fields
  @fields
end

Class Method Details

.name ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 56

def self.name
  @type.to_s
end

.to_s ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 60

def self.to_s
  name
end

.type ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 48

def self.type
  @type || raise
end

.type=(type) ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 64

def self.type=(type)
  Type! type, ProductVariant
  raise if @type
  @type = type
  include type
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 37

def ==(other)
  return false unless other.kind_of? self.class
  @fields == other.fields
end

#hash ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 44

def hash
  [self.class, @fields].hash
end

#to_a ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 33

def to_a
  @fields
end

#to_ary ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 29

def to_ary
  @fields
end

#type ⇒ Object 



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# File 'lib/algebrick/product_constructors/abstract.rb', line 52

def type
  self.class.type
end

#update(*fields) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/algebrick/product_constructors/abstract.rb', line 71

def update(*fields)
  raise NotImplementedError
end