query_element.js.coffee

class QueryNode.Literal
  constructor: (@arg)->
  toJSON:()->
    switch typeof(@arg)
      when 'string' then "\"#{@arg}\""
      when 'number', 'boolean' then @arg
      when 'object'
        if @arg == null
          @arg
        else
          throw new Error('Literal cannot accept an object')
          
#test
describe 'QueryNode.Literal', ->
   it 'throws an error for objects', ->
     j = new QueryNode.Literal({'hey':'you'})
     expect(j.toJSON).to.throwError()