Class: PlusNode

Inherits:

UnaryNode

Object
UnaryNode
PlusNode

show all

Defined in:: lib/ast.rb

Overview

plus———————————

Instance Attribute Summary

Attributes inherited from UnaryNode

Instance Method Summary collapse

#evaluate ⇒ Object
#initialize(subTree) ⇒ PlusNode constructor

A new instance of PlusNode.

Constructor Details

#initialize(subTree) ⇒ `PlusNode`

Returns a new instance of PlusNode.



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# File 'lib/ast.rb', line 85

def initialize(subTree)
  super(subTree)
end

Instance Method Details

#evaluate ⇒ `Object`



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# File 'lib/ast.rb', line 88

def evaluate
  $calc.memory =$calc.memory + subTree.evaluate()
end