Module: Kind::Functional::ClassMethods

Includes:
DependencyInjection
Defined in:
lib/kind/functional.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from DependencyInjection

#__dependencies__, #dependency

Class Method Details

.inherited(_) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/kind/functional.rb', line 73

def self.inherited(_)
  raise RuntimeError, "#{self.name} is a Kind::Functional and it can't be inherited by anyone"
end

Instance Method Details

#kind_functional! ⇒ Object 



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# File 'lib/kind/functional.rb', line 54

def kind_functional!
  return self if Kind.is?(Behavior, self)

  public_methods = self.public_instance_methods - ::Object.new.methods

  unless public_methods.include?(:call)
    raise Kind::Error.new("expected #{self} to implement `#call`")
  end

  if public_methods.size > 1
    raise Kind::Error.new("#{self} can only have `#call` as its public method")
  end

  if public_instance_method(:call).parameters.empty?
    raise ArgumentError, "#{self.name}#call must receive at least one argument"
  end

  self.send(:include, Behavior)

  def self.inherited(_)
    raise RuntimeError, "#{self.name} is a Kind::Functional and it can't be inherited by anyone"
  end

  self.class_eval(
    'def to_proc; @to_proc ||= method(:call).to_proc; end' \
    "\n" \
    'def curry; @curry ||= to_proc.curry; end'
  )

  __dependencies__.freeze

  self
end