Ovidiu Predescu wrote: > > On Friday, October 11, 2002, at 02:09 AM, Sylvain Wallez wrote: > >> Stefano Mazzocchi wrote: >> >>> People, >>> >>> Neal Gafter is about to start the process for a new JSR on Java >>> Compiler API which would hopefully make it fir Tiger (aka Java 1.5). >>> He asked me if there are people interested in helping out with the >>> details of bootstrapping this from Apache and since we (and Tomcat) >>> are the one who need this the most (for XSP and sitemap >>> compilation), I thought about asking here. >>> >>> The idea is to allow us to compile stuff without having to use the >>> filesystem to retrieve both the source file and the classes on which >>> the code to be compiled depend upon. >>> >>> So, if you are a committer and want to join, just raise your hand >>> and we'll see what happens. >> >> >> >> What would be very cool is to be able to specify line numbers of the >> source file that generated the Java code (like #line in C). This >> would allow for source-level XSP debuggers ! > > > I've implemented this feature long time ago for the compiled sitemap, > in the sitemap.xsl stylesheet. The generated sitemap would have lines > like: > > // file: src/webapp/sitemap.xmap > // line: 123
I know this, and what I'm proposing extends it to the source file and line number information in the bytecode. The above allows to find the line in the sitemap/XSP that generated a given statement in the Java code. But exceptions stacktraces still refer to source lines of the generated java code, and not source lines of the original sitemap/XSP. My proposal would allow to have exceptions carry the file name and line number of the _sitemap/XSP file_ that originated the Java code. You would then have stacktraces like this : my.app.MyException (app failed) at my.app.MyClass (MyClass.java:315) at my.webapp.myXsp_xsp.generate (myXsp.xsp:79) <=== at ServerPagesGenerator.generate (ServerPagesGenerator.java:89) at my.webapp.sitemap_xmap.match123 (sitemap.xmap:152) <=== ... This kind of information would greatly help debugging Cocoon applications, and would also allow source-level debugging of XSPs using existing debuggers. Sylvain -- Sylvain Wallez Anyware Technologies Apache Cocoon http://www.anyware-tech.com mailto:[EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
