Module: Reflekt

Defined in:
lib/reflekt.rb

Overview

REFLEKT

An Execution is created each time a method is called. Multiple Refections are created per Execution. These Reflections execute on a ShadowStack on cloned objects. Then flow is returned to the original method and normal execution continues.

Usage:

class ExampleClass
  prepend Reflekt

Defined Under Namespace

Modules: SingletonClassMethods

Constant Summary collapse

@@reflekt_reflect_amount =

The amount of reflections to create per method call.

2
@@reflection_limit =

Limit the amount of reflections that can be created per instance method. A method called thousands of times doesn’t need that many reflections.

10

Instance Method Summary collapse

Instance Method Details

#initialize(*args) ⇒ Object 



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# File 'lib/reflekt.rb', line 31

def initialize(*args)

  @reflection_counts = {}

  # Get instance methods.
  # TODO: Include parent methods like "Array.include?".
  self.class.instance_methods(false).each do |method|

    # Don't process skipped methods.
    next if self.class.reflekt_skipped?(method)

    @reflection_counts[method] = 0

    # When method called in flow.
    self.define_singleton_method(method) do |*args|

      # Don't reflect when limit reached.
      unless @reflection_counts[method] >= @@reflection_limit

        # Get current execution.
        execution = @@reflekt_stack.peek()

        # When stack empty or past execution done reflecting.
        if execution.nil? || execution.has_finished_reflecting?

          # Create execution.
          execution = Execution.new(self, @@reflekt_reflect_amount)
          @@reflekt_stack.push(execution)

        end

        # Reflect.
        # The first method call in the Execution creates a Reflection.
        # Subsequent method calls are shadow executions on cloned objects.
        if execution.has_empty_reflections? && !execution.is_reflecting?
          execution.is_reflecting = true

          # Multiple reflections per execution.
          execution.reflections.each_with_index do |value, index|

            # Flag first reflection is a control.
            is_control = false
            is_control = true if index == 0

            # Create reflection.
            reflection = Reflection.new(execution, method, is_control)
            execution.reflections[index] = reflection

            # Execute reflection.
            reflection.reflect(*args)

            # Add result.
            class_name = execution.caller_class.to_s
            method_name = method.to_s
            @@reflekt_db.get("#{class_name}.#{method_name}").push(reflection.result())

          end

          # Save results.
          @@reflekt_db.write()

          # Render results.
          reflekt_render()

          execution.is_reflecting = false
        end

      end

      @reflection_counts[method] = @reflection_counts[method] + 1

      # Continue execution / shadow execution.
      super *args

    end

  end

  # Continue initialization.
  super

end

#reflekt_render ⇒ Object

Render results.



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# File 'lib/reflekt.rb', line 117

def reflekt_render()

  # Get JSON.
  @@reflekt_json = File.read("#{@@reflekt_output_path}/db.json")

  # Save HTML.
  template = File.read("#{@@reflekt_path}/web/template.html.erb")
  rendered = ERB.new(template).result(binding)
  File.open("#{@@reflekt_output_path}/index.html", 'w+') do |f|
    f.write rendered
  end

  # Add JS.
  javascript = File.read("#{@@reflekt_path}/web/script.js")
  File.open("#{@@reflekt_output_path}/script.js", 'w+') do |f|
    f.write javascript
  end

  # Add CSS.
  stylesheet = File.read("#{@@reflekt_path}/web/style.css")
  File.open("#{@@reflekt_output_path}/style.css", 'w+') do |f|
    f.write stylesheet
  end

end