Class: Contracts::Send

Inherits:

CallableClass

• Object
• CallableClass
• Contracts::Send

Defined in:

lib/contracts/builtin_contracts.rb

Overview

Takes a variable number of method names as symbols. Given an argument, all of those methods are called on the argument one by one. If they all return true, the contract passes. Example: Send[:valid?]

Instance Method Summary

• #initialize(*meths) ⇒ Send constructor

  A new instance of Send.

• #to_s ⇒ Object
• #valid?(val) ⇒ Boolean

Methods inherited from CallableClass

[]

Constructor Details

#initialize(*meths) ⇒ Send

# File 'lib/contracts/builtin_contracts.rb', line 206

def initialize(*meths)
  @meths = meths
end

Instance Method Details

#to_s ⇒ Object

# File 'lib/contracts/builtin_contracts.rb', line 216

def to_s
  "a value that returns true for all of #{@meths.inspect}"
end

#valid?(val) ⇒ Boolean

# File 'lib/contracts/builtin_contracts.rb', line 210

def valid?(val)
  @meths.all? do |meth|
    val.send(meth)
  end
end