Sha256: 67349e17b2de7c152de1e0273018f7ca7395b01fa08010f1f73c3daba46157ec
Contents?: true
Size: 874 Bytes
Versions: 3
Compression:
Stored size: 874 Bytes
Contents
module Glimmer
class Calculator
class Command
class Operation < Command
def execute
if number1 && number2 && operation && !last_command.equals?
self.result = operation.calculate.to_s
self.number1 = self.result
else
self.result = last_result || '0'
self.operation = self
end
end
def calculate
calculation_result = BigDecimal.new(number1.to_s).send(operation_method, BigDecimal.new(number2.to_s)).to_f
calculation_result.to_s.match(/\.0+$/) ? calculation_result.to_i : calculation_result
end
# Subclasses must implement to indicate operation method on number (e.g. :+ for addition)
def operation_method
raise 'Not implemented!'
end
end
end
end
end
Version data entries
3 entries across 3 versions & 1 rubygems