public static bool TryGetStatement(Genero4glParser parser, out FglStatement node, bool isArray, IModuleResult containingModule, List <Func <PrepareStatement, bool> > prepStatementBinders, Func <ReturnStatement, ParserResult> returnStatementBinder = null, Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null, List <TokenKind> validExitKeywords = null, IEnumerable <ContextStatementFactory> contextStatementFactories = null, HashSet <TokenKind> endKeywords = null) { bool result = false; node = null; DisplayStatement inputStmt; if ((result = TryGetDisplayStatement(parser, out inputStmt, isArray))) { node = inputStmt; } else { List <ContextStatementFactory> csfs = new List <ContextStatementFactory>(); if (contextStatementFactories != null) { csfs.AddRange(contextStatementFactories); } csfs.Add((x) => { DisplayStatement testNode; TryGetDisplayStatement(x, out testNode, isArray, true); return(testNode); }); result = parser.StatementFactory.TryParseNode(parser, out node, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, false, validExitKeywords, csfs, null, endKeywords); } return(result); }
public static bool TryGetStatement(Genero4glParser parser, out FglStatement node, IModuleResult containingModule, ReportBlockNode reportNode, List <Func <PrepareStatement, bool> > prepStatementBinders, Func <ReturnStatement, ParserResult> returnStatementBinder = null, Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null, List <TokenKind> validExitKeywords = null, IEnumerable <ContextStatementFactory> contextStatementFactories = null) { bool result = false; node = null; if (!(result = TryGetReportStatement(parser, out node, reportNode))) { List <ContextStatementFactory> csfs = new List <ContextStatementFactory>(); if (contextStatementFactories != null) { csfs.AddRange(contextStatementFactories); } csfs.Add((x) => { FglStatement testNode; TryGetReportStatement(x, out testNode, reportNode, true); return(testNode); }); result = parser.StatementFactory.TryParseNode(parser, out node, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, false, validExitKeywords, csfs, new ExpressionParsingOptions { AllowStarParam = true, AdditionalExpressionParsers = new ExpressionParser[] { (x) => ParseAggregateReportFunction(x, reportNode) } }); } return(result); }
public bool TryParseNode(Genero4glParser parser, out FglStatement node, IModuleResult containingModule, List <Func <PrepareStatement, bool> > prepStatementBinders, Func <ReturnStatement, ParserResult> returnStatementBinder = null, Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null, bool returnStatementsOnly = false, List <TokenKind> validExitKeywords = null, IEnumerable <ContextStatementFactory> contextStatementFactories = null, ExpressionParsingOptions expressionOptions = null, HashSet <TokenKind> endKeywords = null) { node = null; bool result = false; if (returnStatementsOnly) { if (parser.PeekToken(TokenKind.ReturnKeyword)) { ReturnStatement retStmt; if ((result = ReturnStatement.TryParseNode(parser, out retStmt))) { node = retStmt; } } return(result); } if (contextStatementFactories != null) { foreach (var context in contextStatementFactories) { node = context(parser); if (node != null) { break; } } if (node != null) { return(true); } } switch (parser.PeekToken().Kind) { case TokenKind.LetKeyword: { LetStatement letStmt; if ((result = LetStatement.TryParseNode(parser, out letStmt, expressionOptions))) { node = letStmt; } break; } case TokenKind.DeclareKeyword: { DeclareStatement declStmt; if ((result = DeclareStatement.TryParseNode(parser, out declStmt, containingModule))) { node = declStmt; } break; } case TokenKind.DeferKeyword: { DeferStatementNode deferStmt; if ((result = DeferStatementNode.TryParseNode(parser, out deferStmt))) { node = deferStmt; } break; } case TokenKind.PrepareKeyword: { PrepareStatement prepStmt; if ((result = PrepareStatement.TryParseNode(parser, out prepStmt, containingModule))) { node = prepStmt; foreach (var binder in prepStatementBinders) { if (binder(prepStmt)) { break; } } } break; } case TokenKind.SqlKeyword: { SqlBlockNode sqlStmt; if ((result = SqlBlockNode.TryParseSqlNode(parser, out sqlStmt))) { node = sqlStmt; } break; } case TokenKind.ReturnKeyword: { ReturnStatement retStmt; if ((result = ReturnStatement.TryParseNode(parser, out retStmt))) { if (returnStatementBinder != null) { var parseResult = returnStatementBinder(retStmt); if (!parseResult.Success && !string.IsNullOrWhiteSpace(parseResult.ErrorMessage)) { parser.ReportSyntaxError(parseResult.ErrorMessage); } } node = retStmt; } break; } case TokenKind.CallKeyword: { CallStatement callStmt; if ((result = CallStatement.TryParseNode(parser, out callStmt))) { node = callStmt; } break; } case TokenKind.IfKeyword: { IfStatement ifStmt; if ((result = IfStatement.TryParseNode(parser, out ifStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, expressionOptions, endKeywords))) { node = ifStmt; } break; } case TokenKind.WhileKeyword: { WhileStatement whileStmt; if ((result = WhileStatement.TryParseNode(parser, out whileStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, expressionOptions, endKeywords))) { node = whileStmt; } break; } case TokenKind.ExitKeyword: { ExitStatement exitStatement; if ((result = ExitStatement.TryParseNode(parser, out exitStatement))) { node = exitStatement; } break; } case TokenKind.ContinueKeyword: { ContinueStatement contStmt; if ((result = ContinueStatement.TryParseNode(parser, out contStmt))) { node = contStmt; } break; } case TokenKind.WheneverKeyword: { WheneverStatement wheneverStmt; if ((result = WheneverStatement.TryParseNode(parser, out wheneverStmt))) { node = wheneverStmt; } break; } case TokenKind.ForKeyword: { ForStatement forStmt; if ((result = ForStatement.TryParserNode(parser, out forStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, expressionOptions, endKeywords))) { node = forStmt; } break; } case TokenKind.CaseKeyword: { CaseStatement caseStmt; if ((result = CaseStatement.TryParseNode(parser, out caseStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, expressionOptions, endKeywords))) { node = caseStmt; } break; } case TokenKind.InitializeKeyword: { InitializeStatement initStmt; if ((result = InitializeStatement.TryParseNode(parser, out initStmt))) { node = initStmt; } break; } case TokenKind.LocateKeyword: { LocateStatement locateStmt; if ((result = LocateStatement.TryParseNode(parser, out locateStmt))) { node = locateStmt; } break; } case TokenKind.FreeKeyword: { FreeStatement freeStmt; if ((result = FreeStatement.TryParseNode(parser, out freeStmt))) { node = freeStmt; } break; } case TokenKind.GotoKeyword: { GotoStatement gotoStmt; if ((result = GotoStatement.TryParseNode(parser, out gotoStmt))) { node = gotoStmt; } break; } case TokenKind.LabelKeyword: { LabelStatement labelStmt; if ((result = LabelStatement.TryParseNode(parser, out labelStmt))) { node = labelStmt; } break; } case TokenKind.SleepKeyword: { SleepStatement sleepStmt; if ((result = SleepStatement.TryParseNode(parser, out sleepStmt))) { node = sleepStmt; } break; } case TokenKind.TryKeyword: { TryCatchStatement tryStmt; if ((result = TryCatchStatement.TryParseNode(parser, out tryStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = tryStmt; } break; } case TokenKind.ValidateKeyword: { ValidateStatement validateStmt; if ((result = ValidateStatement.TryParseNode(parser, out validateStmt))) { node = validateStmt; } break; } case TokenKind.OptionsKeyword: { OptionsStatement optionsStmt; if ((result = OptionsStatement.TryParseNode(parser, out optionsStmt))) { node = optionsStmt; } break; } case TokenKind.ExecuteKeyword: { ExecuteStatement exeStmt; if ((result = ExecuteStatement.TryParseNode(parser, out exeStmt))) { node = exeStmt; } break; } case TokenKind.OpenKeyword: { OpenStatement openStmt; if ((result = OpenStatement.TryParseNode(parser, out openStmt))) { node = openStmt; } break; } case TokenKind.FetchKeyword: { FetchStatement fetchStmt; if ((result = FetchStatement.TryParseNode(parser, out fetchStmt))) { node = fetchStmt; } break; } case TokenKind.CloseKeyword: { CloseStatement closeStmt; if ((result = CloseStatement.TryParseNode(parser, out closeStmt))) { node = closeStmt; } break; } case TokenKind.ClearKeyword: { ClearStatement clearStmt; if ((result = ClearStatement.TryParseNode(parser, out clearStmt))) { node = clearStmt; } break; } case TokenKind.ForeachKeyword: { ForeachStatement foreachStmt; if ((result = ForeachStatement.TryParseNode(parser, out foreachStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = foreachStmt; } break; } case TokenKind.MessageKeyword: { MessageStatement msgStmt; if ((result = MessageStatement.TryParseNode(parser, out msgStmt))) { node = msgStmt; } break; } case TokenKind.MenuKeyword: { MenuBlock menuStmt; if ((result = MenuBlock.TryParseNode(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = menuStmt; if (limitedScopeVariableAdder != null) { limitedScopeVariableAdder(Genero4glAst.DialogVariable, node.StartIndex, node.EndIndex); } } break; } case TokenKind.InputKeyword: { InputBlock inputStmt; if ((result = InputBlock.TryParseNode(parser, out inputStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = inputStmt; if (limitedScopeVariableAdder != null) { limitedScopeVariableAdder(Genero4glAst.DialogVariable, node.StartIndex, node.EndIndex); } } break; } case TokenKind.ConstructKeyword: { ConstructBlock constructStmt; if ((result = ConstructBlock.TryParseNode(parser, out constructStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = constructStmt; if (limitedScopeVariableAdder != null) { limitedScopeVariableAdder(Genero4glAst.DialogVariable, node.StartIndex, node.EndIndex); } } break; } case TokenKind.FlushKeyword: { FlushStatement flushStmt; if ((result = FlushStatement.TryParseNode(parser, out flushStmt))) { node = flushStmt; } break; } case TokenKind.DisplayKeyword: { DisplayBlock dispStmt; if ((result = DisplayBlock.TryParseNode(parser, out dispStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = dispStmt; if (limitedScopeVariableAdder != null) { limitedScopeVariableAdder(Genero4glAst.DialogVariable, node.StartIndex, node.EndIndex); } } break; } case TokenKind.PromptKeyword: { PromptStatement promptStmt; if ((result = PromptStatement.TryParseNode(parser, out promptStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = promptStmt; if (limitedScopeVariableAdder != null) { limitedScopeVariableAdder(Genero4glAst.DialogVariable, node.StartIndex, node.EndIndex); } } break; } case TokenKind.DialogKeyword: { DialogBlock dialogBlock; if ((result = DialogBlock.TryParseNode(parser, out dialogBlock, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))) { node = dialogBlock; if (limitedScopeVariableAdder != null) { limitedScopeVariableAdder(Genero4glAst.DialogVariable, node.StartIndex, node.EndIndex); } } break; } case TokenKind.AcceptKeyword: { AcceptStatement acceptStmt; if ((result = AcceptStatement.TryParseNode(parser, out acceptStmt))) { node = acceptStmt; } break; } case TokenKind.LoadKeyword: { LoadStatement loadStmt; if ((result = LoadStatement.TryParseNode(parser, out loadStmt))) { node = loadStmt; } break; } case TokenKind.CreateKeyword: { CreateStatement createStmt; if ((result = CreateStatement.TryParseNode(parser, out createStmt, containingModule))) { node = createStmt; } break; } case TokenKind.BreakpointKeyword: { BreakpointStatement brkStmt; if ((result = BreakpointStatement.TryParseNode(parser, out brkStmt))) { node = brkStmt; } break; } case TokenKind.OutputKeyword: { OutputToReportStatement outRpt; if ((result = OutputToReportStatement.TryParseNode(parser, out outRpt))) { node = outRpt; } break; } case TokenKind.StartKeyword: { StartReportStatement startRpt; if ((result = StartReportStatement.TryParseNode(parser, out startRpt))) { node = startRpt; } break; } case TokenKind.FinishKeyword: { FinishReportStatement finRpt; if ((result = FinishReportStatement.TryParseNode(parser, out finRpt))) { node = finRpt; } break; } case TokenKind.TerminateKeyword: { TerminateReportStatement termRpt; if ((result = TerminateReportStatement.TryParseNode(parser, out termRpt))) { node = termRpt; } break; } default: { if (SqlStatementFactory.IsValidStatementStart(parser.PeekToken().Kind)) { bool dummy; result = SqlStatementFactory.TryParseSqlStatement(parser, out node, out dummy); } break; } } if (result) { // check for semicolon if (parser.PeekToken(TokenKind.Semicolon)) { parser.NextToken(); } } return(result); }
public static bool TryParseNode(Genero4glParser parser, out MenuOption node, IModuleResult containingModule, List <Func <PrepareStatement, bool> > prepStatementBinders, Func <ReturnStatement, ParserResult> returnStatementBinder = null, Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null, List <TokenKind> validExitKeywords = null, IEnumerable <ContextStatementFactory> contextStatementFactories = null, HashSet <TokenKind> endKeywords = null) { node = new MenuOption(); bool result = true; prepStatementBinders.Insert(0, node.BindPrepareCursorFromIdentifier); switch (parser.PeekToken().Kind) { case TokenKind.Ampersand: { PreprocessorNode preNode; PreprocessorNode.TryParseNode(parser, out preNode); node.StartIndex = -1; break; } case TokenKind.CommandKeyword: { parser.NextToken(); node.StartIndex = parser.Token.Span.Start; bool getOptionName = false; if (parser.PeekToken(TokenKind.KeyKeyword)) { parser.NextToken(); if (parser.PeekToken(TokenKind.LeftParenthesis)) { parser.NextToken(); VirtualKey keyName; if (VirtualKey.TryGetKey(parser, out keyName)) { node.KeyName = keyName; } else { parser.ReportSyntaxError("Invalid key-name found in menu command option."); } if (parser.PeekToken(TokenKind.RightParenthesis)) { parser.NextToken(); } else { parser.ReportSyntaxError("Expecting right-paren in menu command option."); } } else { parser.ReportSyntaxError("Expecting left-paren in menu command option."); } node.DecoratorEnd = parser.Token.Span.End; } else { getOptionName = true; } // at this point we need to try to get a menu-statement. If it doesn't work, we have some other stuff to gather FglStatement menuStmt = null; if (getOptionName || !MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords)) { ExpressionNode optionName; if (FglExpressionNode.TryGetExpressionNode(parser, out optionName)) { node.OptionName = optionName; } else { parser.ReportSyntaxError("Invalid option-name found in menu command option."); } node.DecoratorEnd = parser.Token.Span.End; if (parser.PeekToken(TokenCategory.StringLiteral) || parser.PeekToken(TokenCategory.Identifier)) { ExpressionNode optionComment; if (FglExpressionNode.TryGetExpressionNode(parser, out optionComment)) { node.OptionComment = optionComment; } } if (parser.PeekToken(TokenKind.HelpKeyword)) { parser.NextToken(); ExpressionNode optionNumber; if (FglExpressionNode.TryGetExpressionNode(parser, out optionNumber)) { node.HelpNumber = optionNumber; } else { parser.ReportSyntaxError("Invalid help-number found in menu command option."); } } } else if (menuStmt != null) { node.Children.Add(menuStmt.StartIndex, menuStmt); } while (MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords)) { if (menuStmt != null && !node.Children.ContainsKey(menuStmt.StartIndex)) { node.Children.Add(menuStmt.StartIndex, menuStmt); } } break; } case TokenKind.OnKeyword: { parser.NextToken(); node.StartIndex = parser.Token.Span.Start; if (parser.PeekToken(TokenKind.ActionKeyword)) { parser.NextToken(); FglNameExpression action; if (FglNameExpression.TryParseNode(parser, out action)) { node.ActionName = action; } else { parser.ReportSyntaxError("Invalid action-name found in menu option."); } node.DecoratorEnd = parser.Token.Span.End; FglStatement menuStmt = null; while (MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && menuStmt != null) { node.Children.Add(menuStmt.StartIndex, menuStmt); } } else if (parser.PeekToken(TokenKind.IdleKeyword)) { parser.NextToken(); ExpressionNode idleExpr; if (FglExpressionNode.TryGetExpressionNode(parser, out idleExpr)) { node.IdleSeconds = idleExpr; } else { parser.ReportSyntaxError("Invalid idle-seconds found in menu block."); } node.DecoratorEnd = parser.Token.Span.End; FglStatement menuStmt = null; while (MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder, limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && menuStmt != null) { node.Children.Add(menuStmt.StartIndex, menuStmt); } } else { parser.ReportSyntaxError("Expecting \"action\" or \"idle\" keyword in menu option."); } break; } default: result = false; break; } prepStatementBinders.RemoveAt(0); node.EndIndex = parser.Token.Span.End; return(result); }
public FglStatementExpression(FglStatement statement) { _statement = statement; }
private static bool TryGetReportStatement(IParser parser, out FglStatement node, ReportBlockNode reportNode, bool returnFalseInsteadOfErrors = false) { bool result = false; node = null; switch (parser.PeekToken().Kind) { case TokenKind.PrintKeyword: { PrintStatement prtStmt; if ((result = PrintStatement.TryParseNode(parser, out prtStmt, reportNode))) { node = prtStmt; } break; } case TokenKind.PrintxKeyword: { PrintxStatement prtxStmt; if ((result = PrintxStatement.TryParseNode(parser, out prtxStmt))) { node = prtxStmt; } break; } case TokenKind.NeedKeyword: { NeedStatement needStmt; if ((result = NeedStatement.TryParseNode(parser, out needStmt))) { node = needStmt; } break; } case TokenKind.PauseKeyword: { PauseStatement pauseStmt; if ((result = PauseStatement.TryParseNode(parser, out pauseStmt))) { node = pauseStmt; } break; } case TokenKind.SkipKeyword: { SkipStatement skipStmt; if ((result = SkipStatement.TryParseNode(parser, out skipStmt))) { node = skipStmt; } break; } default: result = false; break; } return(result); }