ProgrammingLanguageNr1.Parser.statementList C# (CSharp) Method

        private AST statementList(bool isInMainScope)
        {
            #if WRITE_DEBUG_INFO
            Console.WriteLine("statement list");
            #endif
            AST statementListTree = new AST(new Token(Token.TokenType.STATEMENT_LIST, "<STATEMENT_LIST>"));

            while (lookAheadType(1) != Token.TokenType.EOF &&
                   lookAheadType(1) != Token.TokenType.ELSE)
            {
                if(lookAheadType(1) == Token.TokenType.BLOCK_END) {
                    if(isInMainScope) {
                        m_errorHandler.errorOccured("Found the word 'end' where it makes no sense",
                                                    Error.ErrorType.SYNTAX, lookAhead(1).LineNr, lookAhead(1).LinePosition);
                    }
                    break;
                }

                AST statementTree = statement();
                if(statementTree != null) {
                    statementListTree.addChild(statementTree);
                }
                else {
            #if WRITE_DEBUG_INFO
                    Console.WriteLine("null statement");
            #endif
                }
            }

            return statementListTree;
        }