Fix captured error issue

Rajesh Jinaga · Rajesh Jinaga · commit 803b8b2c296c · 2022-07-27T16:35:25.000+05:30
diff --git a/src/Simpleflow/CodeGenerator/SimpleflowErrorListener.cs b/src/Simpleflow/CodeGenerator/SimpleflowErrorListener.cs
@@ -17,7 +17,7 @@ public override void SyntaxError(TextWriter output, IRecognizer recognizer, ITok
             string msg, RecognitionException e)
         {
 
-            if (recognizer.Atn.states[e.OffendingState].StateType == Antlr4.Runtime.Atn.StateType.BlockStart)
+            if (e != null && recognizer.Atn.states[e.OffendingState].StateType == Antlr4.Runtime.Atn.StateType.BlockStart)
             {
                 Errors.Add(new SyntaxError(recognizer, offendingSymbol, line, charPositionInLine, $"Unexpected token {offendingSymbol.Text}, a newline expected", e));
             }

Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,7 @@ public override void SyntaxError(TextWriter output, IRecognizer recognizer, ITok`
`17`	`17`	`string msg, RecognitionException e)`
`18`	`18`	`{`
`19`	`19`
`20`		`- if (recognizer.Atn.states[e.OffendingState].StateType == Antlr4.Runtime.Atn.StateType.BlockStart)`
	`20`	`+ if (e != null && recognizer.Atn.states[e.OffendingState].StateType == Antlr4.Runtime.Atn.StateType.BlockStart)`
`21`	`21`	`{`
`22`	`22`	`Errors.Add(new SyntaxError(recognizer, offendingSymbol, line, charPositionInLine, $"Unexpected token {offendingSymbol.Text}, a newline expected", e));`
`23`	`23`	`}`