class Contracts::Builtin::Xor

Takes a variable number of contracts. The contract passes if exactly one of those contracts pass. Example: Xor[Fixnum, Float]

Public Class Methods

new(*vals) click to toggle source
# File lib/contracts/builtin_contracts.rb, line 123
def initialize(*vals)
  @vals = vals
end

Public Instance Methods

to_s() click to toggle source
# File lib/contracts/builtin_contracts.rb, line 135
def to_s
  EnumInspector.inspect(@vals, "xor")
end
valid?(val) click to toggle source
# File lib/contracts/builtin_contracts.rb, line 127
def valid?(val)
  results = @vals.map do |contract|
    res,  = Contract.valid?(val, contract)
    res
  end
  results.count(true) == 1
end