Class: Less::JavaScript::NashornContext

Inherits:
Object
  • Object
show all
Defined in:
lib/nashorn/rhino/less.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(globals = nil) ⇒ NashornContext

Returns a new instance of NashornContext.



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# File 'lib/nashorn/rhino/less.rb', line 18

def initialize(globals = nil)
  @context = Nashorn::Context.new :java => true
  #if @context.respond_to?(:version)
  #  @context.version = '1.8'
  #  apply_1_8_compatibility! if @context.version.to_s != '1.8'
  #else
  #  apply_1_8_compatibility!
  #end
  globals.each { |key, val| @context[key] = val } if globals
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(symbol, *args) ⇒ Object 



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# File 'lib/nashorn/rhino/less.rb', line 53

def method_missing(symbol, *args)
  if @context.respond_to?(symbol)
    @context.send(symbol, *args)
  else
    super
  end
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/nashorn/rhino/less.rb', line 14

def self.instance
  return new # NOTE: for Rhino a context should be kept open per thread !
end

Instance Method Details

#call(properties, *args) ⇒ Object 



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# File 'lib/nashorn/rhino/less.rb', line 46

def call(properties, *args)
  args.last.is_a?(::Hash) ? args.pop : {} # extract_option!
  @context.eval(properties).call(*args)
rescue Nashorn::JSError => e
  handle_js_error(e)
end

#eval(source, options = nil) ⇒ Object 



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# File 'lib/nashorn/rhino/less.rb', line 39

def eval(source, options = nil)
  source = source.encode('UTF-8') if source.respond_to?(:encode)
  @context.eval("(#{source})")
rescue Nashorn::JSError => e
  handle_js_error(e)
end

#exec(&block) ⇒ Object 



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# File 'lib/nashorn/rhino/less.rb', line 33

def exec(&block)
  @context.open(&block)
rescue Nashorn::JSError => e
  handle_js_error(e)
end

#unwrap ⇒ Object 



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# File 'lib/nashorn/rhino/less.rb', line 29

def unwrap
  @context
end