function parseObject()

in common/lib/jju/parse.js [331:409]

• 65 lines of code
• 21 McCabe index (conditional complexity)

  function parseObject() {
    var result = options.null_prototype ? Object.create(null) : {}
      , empty_object = {}
      , is_non_empty = false

    while (position < length) {
      skipWhiteSpace()
      var item1 = parseKey()
      skipWhiteSpace()
      tokenStart()
      var chr = input[position++]
      tokenEnd(undefined, 'separator')

      if (chr === '}' && item1 === undefined) {
        if (!json5 && is_non_empty) {
          position--
          fail('Trailing comma in object')
        }
        return result

      } else if (chr === ':' && item1 !== undefined) {
        skipWhiteSpace()
        stack.push(item1)
        var item2 = parseGeneric()
        stack.pop()

        if (item2 === undefined) fail('No value found for key ' + item1)
        if (typeof(item1) !== 'string') {
          if (!json5 || typeof(item1) !== 'number') {
            fail('Wrong key type: ' + item1)
          }
        }

        if ((item1 in empty_object || empty_object[item1] != null) && options.reserved_keys !== 'replace') {
          if (options.reserved_keys === 'throw') {
            fail('Reserved key: ' + item1)
          } else {
            // silently ignore it
          }
        } else {
          if (typeof(options.reviver) === 'function') {
            item2 = options.reviver.call(null, item1, item2)
          }

          if (item2 !== undefined) {
            is_non_empty = true
            Object.defineProperty(result, item1, {
              value: item2,
              enumerable: true,
              configurable: true,
              writable: true,
            })
          }
        }

        skipWhiteSpace()

        tokenStart()
        var chr = input[position++]
        tokenEnd(undefined, 'separator')

        if (chr === ',') {
          continue

        } else if (chr === '}') {
          return result

        } else {
          fail()
        }

      } else {
        position--
        fail()
      }
    }

    fail()
  }