Class: Dart2Js

Inherits:
Sprockets::Processor
  • Object
show all
Defined in:
lib/dart2js.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_or_data, options = {}) ⇒ Dart2Js

Returns a new instance of Dart2Js.



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# File 'lib/dart2js.rb', line 28

def initialize(file_or_data, options = {})
  @dart2js_binary = options[:dart2js_binary] || self.class.dart2js_binary
  @out_dir = options[:out_dir] if options[:out_dir]
  @out_file = options[:out_file] || File.join((@out_dir || Dir::tmpdir), "dart2js_#{self.object_id}_#{Time.now.usec}.js")
  if file_or_data.respond_to?(:path)
    if File.exists?(file_or_data)
      @input_file = file_or_data
    else
      throw 'File not found!'
    end
  else
    @data = file_or_data
  end
end

Class Attribute Details

.dart2js_binary ⇒ Object 



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# File 'lib/dart2js.rb', line 8

def dart2js_binary
  @dart2js_binary ||= (ENV['DART2JS_SOURCE_PATH'] || find_dart2js_in_path || find_dart2js_in_sdk)
end

Instance Attribute Details

#dart2js_binary ⇒ Object

Returns the value of attribute dart2js_binary.



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# File 'lib/dart2js.rb', line 26

def dart2js_binary
  @dart2js_binary
end

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/dart2js.rb', line 25

def data
  @data
end

#input_file ⇒ Object (readonly)

Returns the value of attribute input_file.



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# File 'lib/dart2js.rb', line 25

def input_file
  @input_file
end

#out_dir ⇒ Object

Returns the value of attribute out_dir.



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# File 'lib/dart2js.rb', line 26

def out_dir
  @out_dir
end

#out_file ⇒ Object

Returns the value of attribute out_file.



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# File 'lib/dart2js.rb', line 26

def out_file
  @out_file
end

#result ⇒ Object (readonly)

Returns the value of attribute result.



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# File 'lib/dart2js.rb', line 25

def result
  @result
end

Instance Method Details

#compile(minify = true) ⇒ Object 



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# File 'lib/dart2js.rb', line 43

def compile minify=true
  cmd = [ @dart2js_binary,
          minify ? ' -m ' : '',
          %Q{-o"#{out_file}"},
          in_file = prepare_input.path ].join(' ')
  process = IO.popen(cmd, 'r')
  @result = process.read
  process.close
  return_code = $?.to_i
  return_code == 0 ? true : Dart2JsExceptions::CompilationException.new(cmd, in_file, @result)
end

#get_js_content ⇒ Object 



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# File 'lib/dart2js.rb', line 55

def get_js_content
  File.read(@out_file)
end