Exception: Rhino::JSError

Inherits:
StandardError
  • Object
show all
Defined in:
lib/rhino/error.rb

Instance Method Summary collapse

Constructor Details

#initialize(native) ⇒ JSError

Returns a new instance of JSError.



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# File 'lib/rhino/error.rb', line 6

def initialize(native)
  @native = native # NativeException wrapping a Java Throwable
  message = value ? value : ( cause ? cause.details : @native )
  super(message)
end

Instance Method Details

#cause ⇒ Object

most likely a Rhino::JS::JavaScriptException



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# File 'lib/rhino/error.rb', line 13

def cause
  @native.respond_to?(:cause) ? @native.cause : nil
end

#javascript_backtrace ⇒ Object 



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# File 'lib/rhino/error.rb', line 43

def javascript_backtrace
  cause.is_a?(JS::RhinoException) ? cause.getScriptStackTrace : nil
end

#unwrap ⇒ Object 



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# File 'lib/rhino/error.rb', line 28

def unwrap
  return @unwrap if defined?(@unwrap)
  cause = self.cause
  if cause && cause.is_a?(JS::WrappedException) 
    e = cause.getWrappedException
    if e && e.is_a?(Java::OrgJrubyExceptions::RaiseException)
      @unwrap = e.getException
    else
      @unwrap = e
    end
  else
    @unwrap = nil
  end
end

#value ⇒ Object 



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# File 'lib/rhino/error.rb', line 17

def value
  return @value if defined?(@value)
  if cause.respond_to?(:value) # e.g. JavaScriptException.getValue
    @value = cause.value
  elsif ( unwrap = self.unwrap ) && unwrap.respond_to?(:value)
    @value = unwrap.value
  else
    @value = nil
  end
end