Module: AppKernel::Function::ClassMethods

Defined in:
lib/appkernel/function.rb

Instance Method Summary collapse

Instance Method Details

#apply(*args) ⇒ Object

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# File 'lib/appkernel/function.rb', line 96

def apply(*args)
  Result.new.tap do |result|
    @options.canonicalize(args, result.errors).tap do |params|
      if result.successful?
        new(params).tap do |function|
          function.validate(Validator.new(result.errors))
          if result.successful?
            result.return_value = function.execute
          end
        end
      end
    end
  end
end

#call(*args) ⇒ Object

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# File 'lib/appkernel/function.rb', line 90

def call(*args)
  apply(*args).tap {|result|
    result.verify!
  }.return_value
end

#option(name, modifiers = {}) ⇒ Object

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# File 'lib/appkernel/function.rb', line 70

def option(name, modifiers = {})
  @options.add(name, modifiers)
end

#options ⇒ Object

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# File 'lib/appkernel/function.rb', line 66

def options
  @options
end

#prepare! ⇒ Object

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# File 'lib/appkernel/function.rb', line 74

def prepare!
  @options = Options.new
  call = Module.new.tap do |mod|
    unless self.name.nil? || self.name.empty?
      fun = self
      path = self.name.split(/::/)
      simple_name = path[path.length - 1]
      fun_name = simple_name.gsub(/(\w)([A-Z])([a-z])/) {"#{$1}_#{$2.downcase}#{$3}"}.downcase
      mod.send(:define_method, fun_name) do |*args|
        fun.call(*args)
      end
    end
  end
  self.const_set(:Call, call)
end