Module: RubyRunJs::JsJsonMethods

Extended by:
Helper
Defined in:
lib/ruby_run_js/object_methods/js_json.rb

Class Method Summary collapse

Methods included from Helper

check_object, get_member, get_member_dot, is_accessor_descriptor, is_callable, is_data_descriptor, is_generic_descriptor, is_primitive, make_error, strict_equality

Methods included from ConversionHelper

#convert_to_js_type, #to_boolean, #to_int32, #to_integer, #to_number, #to_object, #to_primitive, #to_string, #to_uint16, #to_uint32

Class Method Details

._ja(value, stack, gap, property_list, replacer_function, space) ⇒ Object 



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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 190

def _ja(value, stack, gap, property_list, replacer_function, space)
  if stack.include?(value)
    raise make_error('TypeError', 'Converting circular structure to JSON')
  end
  stack << value
  stepback = @indent
  @indent += gap
  partial = []
  len = value.get('length')
  index = 0
  while index < len
    str_k = _str(index.to_s, value, replacer_function, stack, gap, property_list, space)
    if str_k == undefined
      partial << 'null'
    else
      partial << str_k
    end
    index += 1
  end
  if partial.length == 0
    final = '[]'
  else
    if gap == ''
      final = '[' + partial.join(',') + ']'
    else
      separator = ',\n' + @indent
      properties = partial.join(separator)
      final = '[\n' + @indent + properties + '\n' + stepback + ']'
    end
  end
  stack.pop()
  @indent = stepback
  final
end

._jo(value, stack, gap, property_list, replacer_function, space) ⇒ Object 



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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 152

def _jo(value, stack, gap, property_list, replacer_function, space)
  if stack.include?(value)
    raise make_error('TypeError', 'Converting circular structure to JSON')
  end
  stack << value
  stepback = @indent
  @indent += gap
  keys = property_list != undefined ? property_list : value.own.keys.filter { |k| value.own[k]['enumerable'] }
  partial = []
  keys.each do |k|
    str_k = _str(k, value, replacer_function, stack, gap, property_list, space)
    if str_k != undefined
      member = _quote(k)
      member += ':'
      if gap != ''
        member += gap
      end
      member += str_k
      partial << member
    end
  end

  if partial.length == 0
    final = '{}'
  else
    if gap == ''
      final = '{' + partial.join(',') + '}'
    else
      separator = ',\n' + @indent
      properties = partial.join(separator)
      final = '{\n' + @indent + properties + '\n' + stepback + '}'
    end
  end
  stack.pop()
  @indent = stepback
  final
end

._quote(value) ⇒ Object

Parameters:

  • (String) 


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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 148

def _quote(value)
  JSON.dump(value)
end

._str(key, holder, replacer_function, stack, gap, property_list, space) ⇒ Object 



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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 107

def _str(key, holder, replacer_function, stack, gap, property_list, space)
  value = holder.get(key)
  if value.js_type == :Object
    toJSON = value.get('toJSON')
    if is_callable(toJSON)
      value = toJSON.call(value, [key])
    end
  end
  if replacer_function != undefined
    value = replacer_function.call(holder, [key, value])
  end

  if value.js_type == :Object
    if value.js_class == 'Number'
      value = to_number(value)
    elsif value.js_class == 'String'
      value = to_string(value)
    elsif value.js_class == 'Boolean'
      value = value.value
    end
  end
  return 'null' if value == null
  return 'true' if value == true
  return 'false' if value == false
  if value.js_type == :String
    return _quote(value)
  end
  if value.js_type == :Number
    return value.finite? ? to_string(value) : 'null'
  end
  if value.js_type == :Object && !is_callable(value)
    if value.js_class == 'Array'
      return _ja(value, stack, gap, property_list, replacer_function, space)
    else
      return _jo(value, stack, gap, property_list, replacer_function, space)
    end
  end
  undefined
end

._walk(holder, name, reviver) ⇒ Object 



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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 77

def _walk(holder, name, reviver)
  val = holder.get(name)
  if val.js_type == :Object
    if val.js_class == 'Array'
      i = 0
      len = val.get('length')
      while i < len
        new_element = _walk(val, i.to_s, reviver)
        if new_element == undefined
          val.delete(i.to_s, false)
        else
          val.put(i.to_s, new_element)
        end
        i += 1
      end
    else
      keys = val.own.keys.filter { |k| val.own[k]['enumerable'] }
      keys.each do |key|
        new_element = _walk(val, key, reviver)
        if new_element == undefined
          val.delete(key, false)
        else
          val.put(key, new_element)
        end
      end
    end
  end
  return reviver.call(holder, [name, val])
end

.constructor_parse(builtin, this, str, reviver) ⇒ Object 



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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 11

def constructor_parse(builtin, this, str, reviver)
  begin
    obj = JSON.parse(str)
  rescue
    raise make_error('SyntaxError', 'JSON.parse could not parse JSON string - Invalid syntax')
  end
  unfiltered = convert_to_js_type(builtin, obj)

  if is_callable(reviver)
    result = builtin.new_object()
    result.put('': unfiltered)
    return _walk(result, '', reviver)
  else
    return unfiltered
  end
end

.constructor_stringify(builtin, this, value, replacer, space) ⇒ Object 



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# File 'lib/ruby_run_js/object_methods/js_json.rb', line 28

def constructor_stringify(builtin, this, value, replacer, space)
  stack = []
  @indent = ''
  property_list = undefined
  replacer_function = undefined
  if replacer.js_type == :Object
    if is_callable(replacer)
      replacer_function = replacer
    elsif replacer.js_class == 'Array'
      property_list = []
      replacer.get_items.each do |v|
        item = undefined
        if v.js_type == :String
          item = v
        elsif v.js_type == :Number
          item = to_string(v)
        elsif v.js_type == :Object
          if v.js_class == 'String' || v.js_class == 'Number'
            item = to_string(v)
          end
        end
        if item != undefined && !property_list.include?(item)
          property_list << item
        end
      end
    end
  end
  if space.js_type == :Object
    if space.js_class == 'Number'
      space = to_number(space)
    elsif space.js_class == 'String'
      space = to_string(space)
    end
  end

  if space.js_type == :Number
    space = [10, to_integer(space)].min
    gap = ' ' * [0, space].max
  elsif space.js_type == :String
    gap = space.length <= 10 ? space : space[0...10]
  else
    gap = ''
  end

  wrapper = builtin.new_object()
  wrapper.put('', value)
  _str('', wrapper, replacer_function, stack, gap, property_list, space)
end