remove useless code

Author: b3b00

src/samples/ParserExample/Program.cs

@@ -932,7 +932,7 @@ private static void AddExponentExtension(DoubleExponent token, LexemeAttribute l
                 var fsmBuilder = lexer.FSMBuilder;
 
 
-                fsmBuilder.GoTo(GenericLexer<DoubleExponent>.in_double) // start a in_double node
+                fsmBuilder.GoTo(GenericLexer<DoubleExponent>.in_double) // start an in_double node
                     .Transition(new char[] {'E','e'}) // add a transition on '.' with precondition
                     .Transition(new char[]{'+','-'})
                     .Mark("start_exponent_val")
@@ -1158,15 +1158,15 @@ public static void TestIndentedParserNeverEnding()
             Assert.True(parserRes.IsOk);
             var parser = parserRes.Result;
             Assert.NotNull(parser);
-            parser.SyntaxParseCallback = node =>
-            {
-                GraphVizEBNFSyntaxTreeVisitor<IndentedLangLexer> grapher =
-                    new GraphVizEBNFSyntaxTreeVisitor<IndentedLangLexer>();
-                var root = grapher.VisitTree(node);
-                var graph = grapher.Graph.Compile();
-                // File.WriteAllText(@"c:\tmp\graph.dot", graph);
-            };
+           
             var parseResult = parser.Parse(source);
+            
+            GraphVizEBNFSyntaxTreeVisitor<IndentedLangLexer> grapher =
+                new GraphVizEBNFSyntaxTreeVisitor<IndentedLangLexer>();
+            grapher.VisitTree(parseResult.SyntaxTree);
+            var graph = grapher.Graph.Compile();
+            //File.WriteAllText(@"c:\tmp\graph.dot", graph);
+            
             Assert.True(parseResult.IsOk);
             var ast = parseResult.Result;
             indented.Block root = ast as indented.Block;

src/sly/parser/parser/Parser.cs

@@ -16,7 +16,6 @@ namespace sly.parser
 {
     public class Parser<IN, OUT> where IN : struct
     {   
-        public Action<ISyntaxNode<IN>> SyntaxParseCallback { get; set; }
 
         public Dictionary<IN, Dictionary<string, string>> LexemeLabels => Lexer.LexemeLabels;
 
@@ -121,10 +120,7 @@ public ParseResult<IN, OUT> ParseWithContext(IList<Token<IN>> tokens, object par
             syntaxResult = cleaner.CleanSyntaxTree(syntaxResult);
             if (!syntaxResult.IsError && syntaxResult.Root != null)
             {
-                if (SyntaxParseCallback != null)
-                {
-                    SyntaxParseCallback(syntaxResult.Root);
-                }
+              
                 var r = Visitor.VisitSyntaxTree(syntaxResult.Root,parsingContext);
                 result.Result = r;
                 result.SyntaxTree = syntaxResult.Root;