Hi Maik, I'll be fixing this issue for the next release of the C# target. In the meantime, you can make the follow 3 changes to the CSharp3 templates and things will work for you.
1. Add the following rule CSharp3.stg: ruleListLabelType() ::= "<ASTLabelType>" 2. Add the following rule to ST.stg: ruleListLabelType() ::= "StringTemplate" 3. In CSharp3.stg, find the ruleLabelDefs rule. Change the reference from <ASTLabelType> to <ruleListLabelType()>. Sam -----Original Message----- From: antlr-interest-boun...@antlr.org [mailto:antlr-interest-boun...@antlr.org] On Behalf Of Maik Schmidt Sent: Thursday, August 25, 2011 10:15 AM To: antlr-interest@antlr.org Subject: [antlr-interest] Problems with Tree Grammars outputting Templates in C# Hi! I am working through the "Language Implementation Patterns" book and I am translating all examples to C#. Unfortunately, I cannot get StringTemplate output to work. Attached you'll find a grammar named Cymbol.g3 and a tree parser named Gen.g3. I have downloaded them from the publisher's web site and only had to change a few minor thing to make them compliant with C#. VisualStudio 2010 turns the g3 files into grammars and lexers nicely, but unfortunately I cannot compile them. The problem seems to appear whenever an expression such as "d+=" is used as in the following rule: compilationUnit: ( d+=classDeclaration | d+=methodDeclaration | d+=varDeclaration )+ -> file(defs={$d}) For such rules I get errors like the following: Error 6 Argument 1: cannot convert from 'Antlr3.ST.StringTemplate' to 'Antlr.Runtime.Tree.CommonTree' c:\users\mschmidt2\documents\visual studio 2010\Projects\StringTemplateTest\StringTemplateTest\obj\x86\Debug\Gen.cs The corresponding code snippet looks as follows: case 1: DebugEnterAlt(1); // Gen.g3:13:11: d+= classDeclaration { DebugLocation(13, 12); PushFollow(Follow._classDeclaration_in_compilationUnit74); d=classDeclaration(); PopFollow(); if (state.failed) return retval; if (list_d==null) list_d=new List<StringTemplate>(); list_d.Add(d.Template); The problem seems to be the initial definition of list_d which is List<CommonTree> list_d = null; What am I doing wrong? Cheers, Maik List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
