示例#1
0
        public static bool TryParse(string content, int start, int length, out KirinNode result)
        {
            result = null;
            if (!content.StartsWith(PreKeyword) || !content.EndsWith(PostKeyword))
            {
                return(false);
            }

            result = new KirinSwitchCase(start, length)
            {
                RawCase = content.Substring(PreKeyword.Length, content.Length - PreKeyword.Length - PostKeyword.Length)
            };
            return(true);
        }
示例#2
0
        public override object Execute(FiMClass reportClass)
        {
            if (!this.Complete)
            {
                throw new FiMException("Executing an incomplete switch statement");
            }

            var variable = reportClass.GetVariable(this.RawVariable);

            if (variable == null)
            {
                throw new FiMException("Varible " + this.RawVariable + " does not exist");
            }

            if (FiMHelper.IsTypeArray(variable))
            {
                throw new FiMException("Cannot use array on a switch");
            }

            Dictionary <object, string> CasesLookup = new Dictionary <object, string>();

            foreach (var key in Cases.Keys)
            {
                if (!KirinSwitchCase.IsValidPlace(key, reportClass, out object value))
                {
                    throw new FiMException("Invalid case " + key);
                }

                if (CasesLookup.Keys.Any(k => KirinValue.IsEqual(k, value)))
                {
                    throw new FiMException("Duplicate case value " + key);
                }

                CasesLookup.Add(value, key);
            }

            KirinStatement s = DefaultCase;

            if (CasesLookup.Keys.Any(k => KirinValue.IsEqual(k, variable.Value)))
            {
                s = Cases[CasesLookup.First(l => KirinValue.IsEqual(l.Key, variable.Value)).Value];
            }

            if (s != null)
            {
                return(s.Execute(reportClass));
            }
            return(null);
        }