Class: Lipwa::Money

Inherits:
Dry::Struct
  • Object
show all
Defined in:
lib/lipwa/money.rb

Overview

Immutable representation of an amount in minor currency units. KES has no subunit in practice, but we keep minor units as the storage form so other currencies fit the same shape later.

Instance Method Summary collapse

Instance Method Details

#+(other) ⇒ Object 



14
15
16
17
 
# File 'lib/lipwa/money.rb', line 14

def +(other)
  assert_same_currency!(other)
  self.class.new(amount: amount + other.amount, currency: currency)
end

#-(other) ⇒ Object 



19
20
21
22
 
# File 'lib/lipwa/money.rb', line 19

def -(other)
  assert_same_currency!(other)
  self.class.new(amount: amount - other.amount, currency: currency)
end

#to_s ⇒ Object 



24
25
26
 
# File 'lib/lipwa/money.rb', line 24

def to_s
  "#{amount} #{currency}"
end