Class: Tooled::Stack

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/tooled/stack.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Stack

Returns a new instance of Stack.



8
9
10
 
# File 'lib/tooled/stack.rb', line 8

def initialize
  @stack_values = []
end

Instance Method Details

#<<(value) ⇒ Object Also known as: push 



17
18
19
 
# File 'lib/tooled/stack.rb', line 17

def <<(value)
  @stack_values << value
end

#[](index) ⇒ Object 



30
31
32
 
# File 'lib/tooled/stack.rb', line 30

def [](index)
  @stack_values[@stack_values.count - (index.to_i + 1)]
end

#count ⇒ Object Also known as: length 



12
13
14
 
# File 'lib/tooled/stack.rb', line 12

def count
  @stack_values.count
end

#each(&block) ⇒ Object 



42
43
44
 
# File 'lib/tooled/stack.rb', line 42

def each(&block)
  yield block.call(pop) until empty?
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


38
39
40
 
# File 'lib/tooled/stack.rb', line 38

def empty?
  @stack_values.empty?
end

#peek ⇒ Object 



22
23
24
 
# File 'lib/tooled/stack.rb', line 22

def peek
  @stack_values.last
end

#pop ⇒ Object 



26
27
28
 
# File 'lib/tooled/stack.rb', line 26

def pop
  @stack_values.delete_at(@stack_values.count - 1)
end

#to_a ⇒ Object 



34
35
36
 
# File 'lib/tooled/stack.rb', line 34

def to_a
  @stack_values.dup
end