CSLE.CLS_Expression_Compiler.Compiler_Expression_Loop_Try C# (CSharp) Метод

        public ICLS_Expression Compiler_Expression_Loop_Try(IList<Token> tlist, ICLS_Environment content, int pos, int posend)
        {

            CLS_Expression_LoopTry value = new CLS_Expression_LoopTry(pos, posend, tlist[pos].line, tlist[posend].line);
            int b1;
            int fs1 = pos + 1;
            int fe1 = FindCodeAny(tlist, ref fs1, out b1);
            if (b1 != 2)
            {
                return null;
            }

            //try
            {
                ICLS_Expression subvalue;
                bool succ = Compiler_Expression_Block(tlist, content, fs1, fe1, out subvalue);
                if (succ)
                {
                    value.tokenEnd = fe1;
                    value.lineEnd = tlist[fe1].line;
                    value.listParam.Add(subvalue);
                }
                else
                {
                    return null;
                }
            }

            while (fe1 < posend && tlist[fe1 + 1].text == "catch")
            {
                //catch(...)

                int b2;
                int fs2 = fe1 + 2;
                int fe2 = FindCodeAny(tlist, ref fs2, out b2);
                {
                    if (b2 != 1)
                    {
                        return null;
                    }
                    ICLS_Expression subvalue;
                    bool succ = Compiler_Expression(tlist, content, fs2, fe2, out subvalue);
                    if (succ)
                    {
                        value.tokenEnd = fe2;
                        value.lineEnd = tlist[fe2].line;
                        value.listParam.Add(subvalue);
                    }
                    else
                    {
                        return null;
                    }
                }
                //catch(){...}

                {
                    int b3;
                    int fs3 = fe2 + 1;
                    int fe3 = FindCodeAny(tlist, ref fs3, out b3);
                    if (b3 != 2)
                    {
                        return null;
                    }

                    ICLS_Expression subvalue;
                    bool succ = Compiler_Expression_Block(tlist, content, fs3, fe3, out subvalue);
                    if (succ)
                    {
                        value.tokenEnd = fe3;
                        value.lineEnd = tlist[fe3].line;
                        value.listParam.Add(subvalue);
                    }
                    else
                    {
                        return null;
                    }
                    fe1 = fe3;
                }
            }


            return value;
        }
        public ICLS_Expression Compiler_Expression_Loop_Return(IList<Token> tlist, ICLS_Environment content, int pos, int posend)