Class: Closure::Compiler::Compilation

Inherits:
Object
  • Object
show all
Defined in:
lib/closure/compiler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env, js_output_file = nil, log = nil) ⇒ Compilation

Returns a new instance of Compilation.



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# File 'lib/closure/compiler.rb', line 97

def initialize(env, js_output_file=nil, log=nil)
  @javascript = []
  @env = env
  @js_output_file = js_output_file
  @log = log
end

Instance Attribute Details

#js_output_file ⇒ Object (readonly)

Returns the value of attribute js_output_file.



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# File 'lib/closure/compiler.rb', line 95

def js_output_file
  @js_output_file
end

#log ⇒ Object (readonly)

Returns the value of attribute log.



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# File 'lib/closure/compiler.rb', line 94

def log
  @log
end

Instance Method Details

#<<(javascript) ⇒ Object

Appends a string to the javascript.

Parameters:

  • javascript (String) 


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# File 'lib/closure/compiler.rb', line 132

def <<(javascript)
  @javascript << javascript
  self
end

#javascript ⇒ Object Also known as: to_s

Always returns the compiled javascript (possibly an empty string).

Examples:

<%= goog.compile(args) %>


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# File 'lib/closure/compiler.rb', line 140

def javascript
  if @js_output_file
    file_js = File.read(@js_output_file) rescue ''
    ([file_js] + @javascript).join nil
  else
    @javascript.join nil
  end
end

#to_response ⇒ Rack::Response

Turn the compiled javascript into a Rack::Response object. Success and warning messages, which aren’t raised like errors, will be logged to the javascript console.

Examples:

<% @response = goog.compile(args).to_response %>

Returns:

  • (Rack::Response) 


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# File 'lib/closure/compiler.rb', line 110

def to_response
  if !log and @javascript.empty? and @js_output_file
    response = FileResponse.new @env, @js_output_file, 'application/javascript'
  else
    response = Rack::Response.new
    response.headers['Content-Type'] = 'application/javascript'
    response.headers["Cache-Control"] = 'max-age=0, private, must-revalidate'
    if log
      consolable_log = '"Closure Compiler: %s\n\n", ' + log.rstrip.dump
      if log.split("\n").first =~ / 0 warn/i
        response.write "try{console.log(#{consolable_log})}catch(err){};\n"
      else
        response.write "try{console.warn(#{consolable_log})}catch(err){};\n"
      end
    end
    response.write javascript
  end
  response
end