示例#1
0
        internal Variable ProcessSwitch(ParsingScript script)
        {
            Variable switchValue = Utils.GetItem(script);

            script.Forward();

            Variable result  = Variable.EmptyInstance;
            var      caseSep = ":".ToCharArray();

            bool caseDone = false;

            while (script.StillValid())
            {
                var nextToken = Utils.GetBodySize(script, Constants.CASE, Constants.DEFAULT);
                if (string.IsNullOrEmpty(nextToken))
                {
                    break;
                }
                if (nextToken == Constants.DEFAULT && !caseDone)
                {
                    result = ProcessBlock(script);
                    break;
                }
                if (!caseDone)
                {
                    Variable caseValue = script.Execute(caseSep);
                    script.Forward();

                    if (switchValue.Type == caseValue.Type && switchValue.Equals(caseValue))
                    {
                        caseDone = true;
                        result   = ProcessBlock(script);
                        if (script.Prev == '}')
                        {
                            break;
                        }
                        script.Forward();
                    }
                }
            }
            script.MoveForwardIfNotPrevious('}');
            script.GoToNextStatement();
            return(result);
        }