Class: Raheui::Stack

Inherits:

Store

• Object
• Store
• Raheui::Stack

Defined in:

lib/raheui/stack.rb

Overview

Stack class for Aheui.

Instance Method Summary

• #push_dup ⇒ Object

  Push the last element to Stack.

• #swap ⇒ Object

  Swap the last two elements of Stack.

Methods inherited from Store

#initialize

Constructor Details

This class inherits a constructor from Raheui::Store

Instance Method Details

#push_dup ⇒ Object

Push the last element to Stack.

# File 'lib/raheui/stack.rb', line 10

def push_dup
  push(@store.last) if size > 0
end

#swap ⇒ Object

Swap the last two elements of Stack.

# File 'lib/raheui/stack.rb', line 15

def swap
  @store[-1], @store[-2] = @store[-2], @store[-1] if size > 1
end