class Sprockets::Rails::LazyCompressor

:nodoc:
#compress is called the first time.
This postpones the initialization of the compressor until
engine when needed.
An asset compressor which only initializes the underlying compression

def compress(content) 

def compress(content)
  compressor.compress(content)
end

def compressor 

def compressor
  @compressor ||= (@block.call || NullCompressor.new)
end

def initialize(&block)

which responds to #compress.
The block should return a compressor when called, i.e. an object

Initializes a new LazyCompressor.
:nodoc:
#compress is called the first time.
This postpones the initialization of the compressor until

engine when needed.
An asset compressor which only initializes the underlying compression 
def initialize(&block)
  @block = block
end