[antlr-interest] C++ target Problem (typedef)

[Oliver Kowalke]

OK - traits header done.

Unfortunately I get another error:

error: antlr3traits.hpp:6:10: error: »antlr3« is not a type (using g++ 
4.6.1)

header antlr3traits.hpp is missing include directive for headers 
(string, antlr3memory.hpp for instance)

regards,
Oliver

Am 17.02.2012 16:02, schrieb Gokulakannan Somasundaram:
> Thanks for testing the C++ grammar. Please do mention the compiler in 
> which you are doing the testing.
>
> What you are seeing is not a bug. You should explicitly write a Traits 
> file. If you look at the example, you might understand.
> After writing the TraitsFile, you have to include the file in @includes.
>
> Suppose you are generating legacyDevCfgLexer.hpp(.cpp) and 
> legacyDevCfgParser.hpp(.cpp), then you write a TraitsFile like this.
>
> using namespace antlr3;
>
> namespace {yours} {
>       #include <antlr3traits.hpp>
>
>       typedef Traits<legacyDevCfgLexer, legacyDevCfgParser> 
> legacyDevCfgTraits;
>       typedef legacyDevCfgTraits legacyDevCfgLexerTraits;
>       typedef legacyDevCfgTraits legacyDevCfgParserTraits;
> };
>
> This will create a traits definition with all defaults. The traits is 
> required in C++, as we do change the definition at compile time using 
> metaprogramming. Please let me know, if you need any help and let me 
> know, if you find any bugs.
>
> Thanks,
> Gokul.
>
> On Fri, Feb 17, 2012 at 10:51 PM, Oliver Kowalke 
> <oliver.kowalke at gmx.de <mailto:oliver.kowalke at gmx.de>> wrote:
>
>     Hi,
>
>     I'm happy to see a runtime for C++.
>
>     Unfortunately I get an error:
>     The grammer is named 'legacyDevCfg' and in the lexer header file
>     (legacyDevCfgLexer.hpp) a typedef is declared:
>
>     typedef legacyDevCfgLexerTraits legacyDevCfgLexerImplTraits;
>
>     But legacyDevCfgLexerTraits is not defined in the files (grep
>     legacyDevCfgLexerTraits *) :/
>
>     echo $CLASSPATH
>     /home/abc/Projekte/Antlr/antlr_with_cpp-3.4.jar
>
>     g++ -W -Wall -g -pthread -I.-I./Cpp/include  -c -o main.o main.cpp
>
>     -> error: »legacyDevCfgLexerTraits« is not a type
>
>     any ideas?
>
>     thx,
>     Oliver
>
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