AST.CompoundStmt.GetStmt C# (CSharp) Метод

        public override Tuple<ABT.Env, ABT.Stmt> GetStmt(ABT.Env env) {
            env = env.InScope();
            List<Tuple<ABT.Env, ABT.Decln>> declns = new List<Tuple<ABT.Env, ABT.Decln>>();
            List<Tuple<ABT.Env, ABT.Stmt>> stmts = new List<Tuple<ABT.Env, ABT.Stmt>>();

            foreach (Decln decln in this.Declns) {
                //Tuple<AST.Env, List<Tuple<AST.Env, AST.Decln>>> r_decln = decln.GetDeclns_(env);
                //env = r_decln.Item1;
                //declns.AddRange(r_decln.Item2);

                var declns_ = Semant(decln.GetDeclns, ref env);
                declns.AddRange(declns_);
            }

            foreach (Stmt stmt in this.Stmts) {
                Tuple<ABT.Env, ABT.Stmt> r_stmt = stmt.GetStmt(env);
                env = r_stmt.Item1;
                stmts.Add(r_stmt);
            }

            env = env.OutScope();

            return new Tuple<ABT.Env, ABT.Stmt>(env, new ABT.CompoundStmt(declns, stmts));
        }
    }