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Class: Sprockets::ERBProcessor

Relationships & Source Files
Inherits: Object
Defined in: lib/sprockets/erb_processor.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(&block) ⇒ ERBProcessor

[ GitHub ] 

  


# File 'lib/sprockets/erb_processor.rb', line 16



def initialize(&block)
  @block = block
end


  







Class Method Details



  

    .call(input)  
  

  [ GitHub ]


  

  


# File 'lib/sprockets/erb_processor.rb', line 12



def self.call(input)
  instance.call(input)
end


  








  

    .instance  
  



  

    

Public: Return singleton instance with default options.



Returns ERBProcessor object.


  



  [ GitHub ]


  

  


# File 'lib/sprockets/erb_processor.rb', line 8



def self.instance
  @instance ||= new
end


  







Instance Attribute Details



  

    #keyword_constructor?  ⇒ Boolean  (readonly, private)
  

  [ GitHub ]


  

  


# File 'lib/sprockets/erb_processor.rb', line 39



def keyword_constructor?
  return @keyword_constructor if defined? @keyword_constructor
  @keyword_constructor = ::ERB.instance_method(:initialize).parameters.include?([:key, :trim_mode])
end


  







Instance Method Details



  

    #call(input)  
  

  [ GitHub ]


  

  


# File 'lib/sprockets/erb_processor.rb', line 20



def call(input)
  if keyword_constructor? # Ruby 2.6+
    engine = ::ERB.new(input[:data], trim_mode: '<>')
  else
    engine = ::ERB.new(input[:data], nil, '<>')
  end
  engine.filename = input[:filename]

  context = input[:environment].context_class.new(input)
  klass = (class << context; self; end)
  klass.const_set(:ENV, context.env_proxy)
  klass.class_eval(&@block) if @block

  data = engine.result(context.instance_eval('binding'))
  context.metadata.merge(data: data)
end