Class: Contracts::Builtin::Nat

Inherits:
Object
  • Object
show all
Defined in:
lib/contracts/builtin_contracts.rb

Overview

Check that an argument is a natural number (includes zero).

Class Method Summary collapse

Class Method Details

.valid?(val) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/contracts/builtin_contracts.rb', line 53

def self.valid? val
  val && val.is_a?(Integer) && val >= 0
end