Module: Vanguard

Defined in:
lib/vanguard.rb,
lib/vanguard/dsl.rb,
lib/vanguard/rule.rb,
lib/vanguard/result.rb,
lib/vanguard/builder.rb,
lib/vanguard/matcher.rb,
lib/vanguard/evaluator.rb,
lib/vanguard/validator.rb,
lib/vanguard/violation.rb,
lib/vanguard/rule/guard.rb,
lib/vanguard/rule/nullary.rb,
lib/vanguard/dsl/evaluator.rb,
lib/vanguard/matcher/unary.rb,
lib/vanguard/support/blank.rb,
lib/vanguard/matcher/binary.rb,
lib/vanguard/builder/nullary.rb,
lib/vanguard/matcher/nullary.rb,
lib/vanguard/instance_methods.rb,
lib/vanguard/matcher/binary/or.rb,
lib/vanguard/matcher/unary/not.rb,
lib/vanguard/validator/builder.rb,
lib/vanguard/matcher/binary/and.rb,
lib/vanguard/matcher/binary/xor.rb,
lib/vanguard/matcher/nullary/proc.rb,
lib/vanguard/matcher/nullary/value.rb,
lib/vanguard/matcher/nullary/format.rb,
lib/vanguard/rule/nullary/attribute.rb,
lib/vanguard/matcher/unary/attribute.rb,
lib/vanguard/matcher/nullary/equality.rb,
lib/vanguard/matcher/nullary/identity.rb,
lib/vanguard/matcher/nullary/inclusion.rb,
lib/vanguard/matcher/nullary/less_than.rb,
lib/vanguard/matcher/nullary/primitive.rb,
lib/vanguard/rule/nullary/confirmation.rb,
lib/vanguard/matcher/nullary/greater_than.rb,
lib/vanguard/rule/nullary/attribute/format.rb,
lib/vanguard/rule/nullary/attribute/length.rb,
lib/vanguard/rule/nullary/attribute/absence.rb,
lib/vanguard/rule/nullary/attribute/presence.rb,
lib/vanguard/rule/nullary/attribute/inclusion.rb,
lib/vanguard/rule/nullary/attribute/predicate.rb,
lib/vanguard/rule/nullary/attribute/primitive.rb

Overview

Library namespace

Defined Under Namespace

Modules: DSL, InstanceMethods Classes: Builder, Evaluator, Matcher, Result, Rule, Validator, Violation

Class Method Summary collapse

Class Method Details

.blank?(value) ⇒ true, false

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Determines whether the specified value is blank

Parameters:

  • value (Object)

Returns:

  • (true) —

    if object is fale empty or a whitespace string

  • (false) —

    otherwise



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# File 'lib/vanguard/support/blank.rb', line 15

def self.blank?(value)
  case value
  when ::NilClass, ::FalseClass
    true
  when ::TrueClass, ::Numeric
    false
  when ::Array, ::Hash
    value.empty?
  when ::String
    value !~ /\S/
  else
    value.nil? || (value.respond_to?(:empty?) && value.empty?)
  end
end

.singleton_constant(klass, name, &block) ⇒ self

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Define constant singleton class

Parameters:

  • klass (Class)
  • name (Symbol)

Returns:

  • (self) 


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# File 'lib/vanguard.rb', line 25

def self.singleton_constant(klass, name, &block)
  subclass = Class.new(klass) do
    # Return inspection string
    #
    # @return [String]
    #
    # @api private
    #
    def inspect
      klass = self.class
      "#{klass.superclass.name}::#{klass.name}".freeze
    end
  end
  subclass.class_eval(&block)
  klass.const_set(name, subclass.new)
  self
end