CSLE.CLS_Expression_Compiler.Compiler_Expression_Loop_Dowhile C# (CSharp) Method

        public ICLS_Expression Compiler_Expression_Loop_Dowhile(IList<Token> tlist, ICLS_Environment content, int pos, int posend)
        {
            int b1;
            int fs1 = pos + 1;
            int fe1 = FindCodeAny(tlist, ref fs1, out b1);
            CLS_Expression_LoopDowhile value = new CLS_Expression_LoopDowhile(pos, fe1, tlist[pos].line, tlist[fe1].line);

            //do(xxx)while(...)
            {
                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;
                }
            }

            //do{...]while(yyy);
            if (tlist[fe1 + 1].text != "while") return null;
            int b2;
            int fs2 = fe1 + 2;
            int fe2 = FindCodeAny(tlist, ref fs2, out b2);
            {
                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;
                }
            }
            return value;
        }