Class: Molecule::Stack

Inherits:

Object

• Object
• Molecule::Stack

Defined in:

lib/molecule/stack.rb

Instance Attribute Summary

• #molecules ⇒ Object

  Returns the value of attribute molecules.

Instance Method Summary

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

  A new instance of Stack.

• #pop ⇒ Object
• #push(molecule) ⇒ Object

Constructor Details

#initialize ⇒ Stack

Returns a new instance of Stack.

# File 'lib/molecule/stack.rb', line 8

def initialize
  @molecules = []
end

Instance Attribute Details

#molecules ⇒ Object

Returns the value of attribute molecules.

# File 'lib/molecule/stack.rb', line 6

def molecules
  @molecules
end

Instance Method Details

#current_molecule ⇒ Object

# File 'lib/molecule/stack.rb', line 16

def current_molecule
  @molecules.last
end

#empty? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/molecule/stack.rb', line 24

def empty?
  @molecules.empty?
end

#pop ⇒ Object

# File 'lib/molecule/stack.rb', line 20

def pop
  @molecules.pop
end

#push(molecule) ⇒ Object

# File 'lib/molecule/stack.rb', line 12

def push molecule
  @molecules.push(molecule)
end