Class: Base::Stack

Inherits:

Object

• Object
• Base::Stack

Defined in:

lib/base/stack.rb

Constant Summary

Error =

Class.new(StandardError)

Instance Method Summary

• #empty? ⇒ Boolean
• #initialize ⇒ Stack constructor

  A new instance of Stack.

• #inner ⇒ Object
• #pop ⇒ Object
• #push(value) ⇒ Object

Constructor Details

#initialize ⇒ Stack

Returns a new instance of Stack.

# File 'lib/base/stack.rb', line 5

def initialize
  @stack = []
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/base/stack.rb', line 17

def empty?
  @stack.empty?
end

#inner ⇒ Object

# File 'lib/base/stack.rb', line 21

def inner
  @stack
end

#pop ⇒ Object

# File 'lib/base/stack.rb', line 13

def pop
  @stack.pop or raise Error, "pop requested on empty stack"
end

#push(value) ⇒ Object

# File 'lib/base/stack.rb', line 9

def push(value)
  @stack.push(value)
end