digitalmars.D.bugs - [Issue 2510] New: provide a template instantiation backtrace when compile fails in a template
- d-bugmail puremagic.com (36/36) Dec 12 2008 http://d.puremagic.com/issues/show_bug.cgi?id=2510
- d-bugmail puremagic.com (11/11) Dec 13 2008 http://d.puremagic.com/issues/show_bug.cgi?id=2510
- d-bugmail puremagic.com (8/8) Apr 26 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2510
- d-bugmail puremagic.com (21/21) Sep 26 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2510
- d-bugmail puremagic.com (11/11) Jan 13 2010 http://d.puremagic.com/issues/show_bug.cgi?id=2510
- d-bugmail puremagic.com (11/11) Jan 20 2010 http://d.puremagic.com/issues/show_bug.cgi?id=2510
http://d.puremagic.com/issues/show_bug.cgi?id=2510 Summary: provide a template instantiation backtrace when compile fails in a template Product: D Version: 1.038 Platform: PC OS/Version: Windows Status: NEW Severity: enhancement Priority: P2 Component: DMD AssignedTo: bugzilla digitalmars.com ReportedBy: wbaxter gmail.com It's very annoying to get a compiler message that consists of nothing but: " error: ATemplateFunction: int does not have a .length property" Where ATemplateFunction is something like void ATemplateFunction(ArrayT)(ArrayT x) { auto n = x.length; .... } Great so I know that *somewhere* in all my source code I called ATemplateFunction with the wrong kind of argument. The compiler knows where it was that I made the call, but it just doesn't care to enlighten me. Very frustrating. I seem to recall a discussion at one point where Walter said that template instantiation backtraces make template errors look too complicated. And I can see the reasoning in that, but omitting them entirely is like chopping off the developer's legs just because his toes are cold. So I have a couple of suggestions: 1) Only print the backtrace when compiling with -v. That way most of the time you don't have to see it. Only when you're really stuck will you pull out the -v guns to figure out what the issue is. 2) Just print out an abbreviated backtrace that consists of only file names and line numbers. 3) Do some combination of 1 and 2. --
Dec 12 2008
http://d.puremagic.com/issues/show_bug.cgi?id=2510 ------- Created an attachment (id=281) --> (http://d.puremagic.com/issues/attachment.cgi?id=281&action=view) add basic template instantiation traces We've added this to LDC a while back and I've attached the original diff. It doesn't cover all cases, but should at least provide a trace for a significant number of in-template errors. In order to not spam users, we only print long traces completely when -v is given. Otherwise only the first and last three steps in the chain are shown. --
Dec 13 2008
http://d.puremagic.com/issues/show_bug.cgi?id=2510 fvbommel wxs.nl changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |someanon yahoo.com *** Bug 2902 has been marked as a duplicate of this bug. *** --
Apr 26 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2510 Stewart Gordon <smjg iname.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |smjg iname.com You have the same typo in three different places: fprintf(stdmsg," instantiatied in %s: %s\n", cur->loc.toChars(), cur->toChars()); instantiatied -> instantiated And while(cur = cur->tinst) probably ought to be written while((cur = cur->tinst) != NULL) to avoid triggering a "possibly incorrect assignment" warning in some compilers. But I like the idea of defaulting to showing the three instantiation levels at each end of the chain. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 26 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2510 Don <clugdbug yahoo.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |clugdbug yahoo.com.au I think this was fixed in the last release, as part of the 'static assert' patch. Please confirm. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 13 2010
http://d.puremagic.com/issues/show_bug.cgi?id=2510 Don <clugdbug yahoo.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED Fixed DMD1.054 and 2.038. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jan 20 2010