Re: Emacs 24 semantic C++ completion problem

[Eric M. Ludlam]

Hi,

When mysterious problems occur with the smart completion engine, it is 
often a challenge to figure out what is going on. - ie - is there a bug 
in Semantic, a setup issue, etc.

I always recommend using `semantic-analyze-debug-assist', used while 
point is in a location that caused the completion problem. 
Unfortunately, this command doesn't have an autoload cookie in Emacs, so 
you need to first:

M-x load-library RET semantic/analyze/debug RET

to make it available.  Hopefully its advice can help fix any 
configuration issues.  I'll guess you need to create a small EDE project 
to point Semantic to your headers.  Most likely using an example of 
ede-cpp-root project type.

For the 2nd problem you list, that seems more like a bug that may have 
been fixed with the version of CEDET from the CEDET bzr repository. 
There have been a few bug fixes there since CEDET was last merged into 
Emacs.  If setting up EDE fixes the first but not the second, you should 
check w/ the CEDET bzr repository.

Eric

On 12/29/2011 01:32 PM, Vyacheslav Gonakhchyan wrote:
> Hi,
>
> I have a problem with C++ completion via builtin semantic.
> Environment: Linux 3.1.5, Emacs 24.0.92.1(latest bzr build), attached
> config file.
>
>
> I use command semantic-ia-complete-symbol and get confusing errors(I cut
> the some line - they are too long):
>
> *1)*
> Debugger entered--Lisp error: (error "Cannot find types for `\"mCamera\"'")
> signal(error ("Cannot find types for `\"mCamera\"'"))
> error("Cannot find types for `%s'" "\"mCamera\"")
> semantic-analyze-possible-completions-default([object
> semantic-analyze-context...
> semantic-analyze-possible-completions([object semantic-analyze-context
> "context" (690 . 690) ("mCamera" "")...
> semantic-ia-complete-symbol(690)
> call-interactively(semantic-ia-complete-symbol nil nil)
>
> *2)*
> Debugger entered--Lisp error: (wrong-type-argument
> semantic-find-tags-by-scope-protection parent semantic-tag-class type)
> signal(wrong-type-argument (semantic-find-tags-by-scope-protection
> parent semantic-tag-class type))
> semantic-find-tags-by-scope-protection(protected ("WindowEventListener"
> variable
> semantic-analyze-scoped-type-parts(("WindowEventListener" variable
> (:type ("_OgreExport" type
> ...(table dump)
> semantic-analyze-scoped-inherited-tag-map(("BaseApplication" type
> (:superclasses...
> Semantic-analyze-scoped-inherited-tag-map(("TutorialApplication" type
> (:superclasses (("BaseApplication"
> semantic-analyze-scoped-inherited-tags(("TutorialApplication" type
> (:superclasses (("BaseApplication" type...
> semantic-analyze-scoped-type-parts(("TutorialApplication" type
> (:superclasses (("BaseApplication" type...
> semantic-analyze-scoped-tags-default(nil [object semantic-scope-cache
> "Cache" [object semanticdb-table "Tut.cpp"...
> semantic-analyze-scoped-tags(nil [object semantic-scope-cache "Cache"
> [object semanticdb-table "Tut.cpp"...
> semantic-calculate-scope(685)
> semantic-analyze-current-context-default(685)
> semantic-analyze-current-context(685)
> semantic-ia-complete-symbol(685)
> call-interactively(semantic-ia-complete-symbol nil nil)
>
>
> I'm trying to make completion work for C++ and I need your advice.
> Debugging these errors for newbie such as myself is tedious:(
> Also please answer if you know workaround. If you have a working .emacs
> config - it might help too.
>
> Thanks,
> Slava
>
>
>
> KGN1c3RvbS1zZXQtdmFyaWFibGVzCiA7OyBjdXN0b20tc2V0LXZhcmlhYmxlcyB3YXMgYWRkZWQg
> YnkgQ3VzdG9tLgogOzsgSWYgeW91IGVkaXQgaXQgYnkgaGFuZCwgeW91IGNvdWxkIG1lc3MgaXQg
> dXAsIHNvIGJlIGNhcmVmdWwuCiA7OyBZb3VyIGluaXQgZmlsZSBzaG91bGQgY29udGFpbiBvbmx5
> IG9uZSBzdWNoIGluc3RhbmNlLgogOzsgSWYgdGhlcmUgaXMgbW9yZSB0aGFuIG9uZSwgdGhleSB3
> b24ndCB3b3JrIHJpZ2h0LgogJyhlY2Itb3B0aW9ucy12ZXJzaW9uICIyLjQwIikKICcoZWNiLXBy
> aW1hcnktc2Vjb25kYXJ5LW1vdXNlLWJ1dHRvbnMgKHF1b3RlIG1vdXNlLTEtLUMtbW91c2UtMSkp
> CiAnKGluaGliaXQtc3RhcnR1cC1zY3JlZW4gdCkKICcoc2VtYW50aWMtYy1kZXBlbmRlbmN5LXN5
> c3RlbS1pbmNsdWRlLXBhdGggKHF1b3RlICgiL3Vzci9pbmNsdWRlIiAiL3Vzci9pbmNsdWRlL09H
> UkUiICIvdXNyL2luY2x1ZGUvT0lTIikpKSkKKGN1c3RvbS1zZXQtZmFjZXMKIDs7IGN1c3RvbS1z
> ZXQtZmFjZXMgd2FzIGFkZGVkIGJ5IEN1c3RvbS4KIDs7IElmIHlvdSBlZGl0IGl0IGJ5IGhhbmQs
> IHlvdSBjb3VsZCBtZXNzIGl0IHVwLCBzbyBiZSBjYXJlZnVsLgogOzsgWW91ciBpbml0IGZpbGUg
> c2hvdWxkIGNvbnRhaW4gb25seSBvbmUgc3VjaCBpbnN0YW5jZS4KIDs7IElmIHRoZXJlIGlzIG1v
> cmUgdGhhbiBvbmUsIHRoZXkgd29uJ3Qgd29yayByaWdodC4KICkKCihhdXRvbG9hZCAncGhwLW1v
> ZGUgInBocC1tb2RlLmVsIiAiUGhwIG1vZGUuIiB0KQooc2V0cSBhdXRvLW1vZGUtYWxpc3QgKGFw
> cGVuZCAnKCgiLyouXC5waHBbMzQ1XT8kIiAuIHBocC1tb2RlKSkgYXV0by1tb2RlLWFsaXN0KSkK
> Cjs7Q3VzdG9tIGNvZGUKKGFkZC10by1saXN0ICdsb2FkLXBhdGggKGV4cGFuZC1maWxlLW5hbWUg
> In4vLmVtYWNzLmQvbGlzcC8iKSkKKGFkZC10by1saXN0ICdsb2FkLXBhdGggKGV4cGFuZC1maWxl
> LW5hbWUgIn4vd29yay9lbWFjcy9lY2IvIikpCgo7OyBjZWRldAoocmVxdWlyZSAnc2VtYW50aWMp
> CihyZXF1aXJlICdzZW1hbnRpYy9zYikKKHJlcXVpcmUgJ3NyZWNvZGUpCihnbG9iYWwtZWRlLW1v
> ZGUgMSkKKHNlbWFudGljLW1vZGUgMSkKKGdsb2JhbC1zZW1hbnRpY2RiLW1pbm9yLW1vZGUgMSkK
> KGdsb2JhbC1zZW1hbnRpYy1pZGxlLXNjaGVkdWxlci1tb2RlIDEpCihnbG9iYWwtc2VtYW50aWMt
> aWRsZS1jb21wbGV0aW9ucy1tb2RlIDEpCihnbG9iYWwtc2VtYW50aWMtZGVjb3JhdGlvbi1tb2Rl
> IDEpCihnbG9iYWwtc2VtYW50aWMtaGlnaGxpZ2h0LWZ1bmMtbW9kZSAxKQooZ2xvYmFsLXNlbWFu
> dGljLXN0aWNreWZ1bmMtbW9kZSAtMSkKKGdsb2JhbC1zZW1hbnRpYy1pZGxlLXN1bW1hcnktbW9k
> ZSAxKQooZ2xvYmFsLXNlbWFudGljLW1ydS1ib29rbWFyay1tb2RlIDEpCihzZW1hbnRpY2RiLWVu
> YWJsZS1nbnUtZ2xvYmFsLWRhdGFiYXNlcyAnYy1tb2RlKQooc2VtYW50aWNkYi1lbmFibGUtZ251
> LWdsb2JhbC1kYXRhYmFzZXMgJ2MrKy1tb2RlKQooc2V0LWRlZmF1bHQgJ3NlbWFudGljLWNhc2Ut
> Zm9sZCB0KQoKCjs7IGVjYgooc2V0cSBzdGFjay10cmFjZS1vbi1lcnJvciB0KSA7V0EgZm9yIHZv
> aWQtdmFyaWFibGUgZXJyb3IKKHJlcXVpcmUgJ2VjYikKCjs7VHVybiBEZWJ1ZyBPTgooc2V0cSBk
> ZWJ1Zy1vbi1lcnJvciB0KQoKOztDUFAgcHJvamVjdAooZWRlLWNwcC1yb290LXByb2plY3QgIk9n
> cmVUZXJyYWluIgogICAgICAgICAgICAgICAgOm5hbWUgIk9ncmVUZXJyYWluIFByb2plY3QiCiAg
> ICAgICAgICAgICAgICA6ZmlsZSAifi93b3JrL2NwcC9PZ3JlVGVycmFpbi9DTWFrZUxpc3RzLnR4
> dCIKCQkJCTppbmNsdWRlLXBhdGggJygiLyIpCiAgICAgICAgICAgICAgICA6c3lzdGVtLWluY2x1
> ZGUtcGF0aCAnKCIvdXNyL2luY2x1ZGUvT0dSRSIgCgkJCQkgICAgICAgIi91c3IvaW5jbHVkZS9P
> R1JFL1BsdWdpbnMiCgkJCQkgICAgICAgIi91c3IvaW5jbHVkZS9PR1JFL1RlcnJhaW4iCgkJCQkg
> ICAgICAgIi91c3IvaW5jbHVkZS9PSVMiKQogICAgICAgICAgICAgIAkpCgo7O3NlbWFudGljIGtl
> eSBiaW5kaW5ncwooZGVmdW4gbXktY2VkZXQtaG9vayAoKQogIChsb2NhbC1zZXQta2V5IFsoY29u
> dHJvbCByZXR1cm4pXSAnc2VtYW50aWMtaWEtY29tcGxldGUtc3ltYm9sKQogIChsb2NhbC1zZXQt
> a2V5ICJcQy1jPyIgJ3NlbWFudGljLWlhLWNvbXBsZXRlLXN5bWJvbC1tZW51KQogIChsb2NhbC1z
> ZXQta2V5ICJcQy1jPiIgJ3NlbWFudGljLWNvbXBsZXRlLWFuYWx5emUtaW5saW5lKQogIChsb2Nh
> bC1zZXQta2V5ICJcQy1jcCIgJ3NlbWFudGljLWFuYWx5emUtcHJvdG8taW1wbC10b2dnbGUpKQoo
> YWRkLWhvb2sgJ2MtbW9kZS1jb21tb24taG9vayAnbXktY2VkZXQtaG9vaykKCjsoZGVmdW4gbXkt
> Yy1tb2RlLWNlZGV0LWhvb2sgKCkKOyAobG9jYWwtc2V0LWtleSAiLiIgJ3NlbWFudGljLWNvbXBs
> ZXRlLXNlbGYtaW5zZXJ0KQo7IChsb2NhbC1zZXQta2V5ICI+IiAnc2VtYW50aWMtY29tcGxldGUt
> c2VsZi1pbnNlcnQpKQo7KGFkZC1ob29rICdjLW1vZGUtY29tbW9uLWhvb2sgJ215LWMtbW9kZS1j
> ZWRldC1ob29rKQoK