Class: CommandLion::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/command_lion/base.rb

Overview

To encapsulate some of the common patterns within Command Lion, there is a Base class which both the App and Command class inhereit from.

Direct Known Subclasses

App, Command, Flags

Class Method Summary collapse

Class Method Details

.build(&block) ⇒ Object

Build up an object with a given block.

Basic Usage

class Example < CommandLion::Base simple_attr :example end

test = Example.build do example "lol" end

test.example

=> "lol"

test.example?

=> true

Parameters:

  • (&block) 


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# File 'lib/command_lion/base.rb', line 26

def build(&block)
  obj = new
  obj.instance_eval(&block)
  obj
end

.key_value(attribute) ⇒ Object

Quickly spin up an in-memory key-value storage object for the framework.

Basic Usage

class Example < CommandLion::Base key_value :example end

test = Example.new test.example = "lol"

test.example

=> "lol"



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# File 'lib/command_lion/base.rb', line 45

def key_value(attribute)
  define_method :"#{attribute}" do 
    instance_variable_set(:"@#{attribute}", Hash.new) unless instance_variable_get(:"@#{attribute}")
    instance_variable_get(:"@#{attribute}")
  end
end

.simple_attr(attribute) ⇒ Object

This method is important for creating the basic attributes for the framework.

Basic Usage

class Example < CommandLion::Base simple_attr :example end

test = Example.new

test.example

=> nil

test.example?

=> false

test.example = "lol"

=> "lol"

test.example

=> "lol"

test.example?

=> true

Parameters:

  • attribute (Symbol) 


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# File 'lib/command_lion/base.rb', line 77

def simple_attr(attribute)
  define_method :"#{attribute}" do |value = nil|
    return instance_variable_get(:"@#{attribute}") if value.nil?
    instance_variable_set(:"@#{attribute}", value)
  end
  define_method :"#{attribute}=" do |value|
    instance_variable_set(:"@#{attribute}", value)
  end
  define_method :"#{attribute}?" do
    return true if instance_variable_get(:"@#{attribute}")
    false
  end
end

.simple_attrs(*attributes) ⇒ Object

This method is important for creating multiple basic attributes.

Basic Usage

class Example < CommandLion::Base simple_attrs :example, :example2 end

test = Example.new

test.example = "lol" test.example2 = "lol2"

Parameters:

  • attribute (Array<Symbol>) 


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# File 'lib/command_lion/base.rb', line 104

def simple_attrs(*attributes)
  attributes.each do |attribute|
    simple_attr(attribute)
  end
end