Class: Sprockets::ERBProcessor

Inherits:
Object
  • Object
show all
Defined in:
lib/sprockets/erb_processor.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ ERBProcessor

Returns a new instance of ERBProcessor.



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

def initialize(&block)
  @block = block
end

Class Method Details

.call(input) ⇒ Object 



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

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

.instance ⇒ Object

Public: Return singleton instance with default options.

Returns ERBProcessor object.



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

def self.instance
  @instance ||= new
end

Instance Method Details

#call(input) ⇒ Object 



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

def call(input)
  match = ERB.version.match(/\Aerb\.rb \[(?<version>[^ ]+) /)
  if match && match[:version] >= "2.2.0" # 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