So far revisions for AbstractEditorSupport were not needed because until
recently we only had a single snapshot ("global snapshot"). Now, since
editor snapshots are introduced, we need to make sure to update the
corresponding documents in these snapshots, too. To do this efficiently,
a revision is introduced for AbstractEditorSupport.

Task-number: QTCREATORBUG-10894

Change-Id: Ibad1dbbafb7c721d1328959c1e903345fe465326
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

The document was not always updated in time.

Change-Id: Iac89985d39a8784e3cbf63dfd42b1c5150775068
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

- fix memory leak in find-usages
- do not retain snapshot in search history
- when an editor is invisible for more than 2 minutes, release the
  backing snapshot

Retaining snapshots will retain their documents, and if done for too
long, the memory consumption might grow. This is especially the case
when switching to a different kit (Qt version): in that case, the new
versions of headers will be indexed, while the old ones stay around.

Task-number: QTCREATORBUG-5583
Task-number: QTCREATORBUG-7645
Task-number: QTCREATORBUG-9842

Change-Id: I045eda1565e0a3fa702baeffaab9c12662f90289
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Only methods as programming functions are affected. Besides renaming
some actions like "Switch Between Function Declaration/Definition" this
mostly touches (api) code comments.

This is a follow-up patch to commit 872bfb70.

Change-Id: Icb65e8d73b59a022f8885b14df497169543a3b92
Reviewed-by: hjk <hjk121@nokiamail.com>

The project that was referenced at cppeditor.cpp:711 was already
deleted. CppModelManager::m_fileToProjectParts contained outdated
information. Now it is updated if a project is closed.

Exposed by commit d411c076.

Change-Id: I6fee93a02c72a045dd44a05723ab39a1eeec616e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

If two files from different (sub-)projects include the same header file,
and the defined macros differ for both files, the header file will be
parsed with only the appropriate macros for the including file.

Task-number: QTCREATORBUG-9802
Task-number: QTCREATORBUG-1249

Change-Id: I560490afa287b3bb1e863bce1bb4f57af36ad56e
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

The model-manager now supports multiple code models for semantic
highlighting and code completion, and will choose one based on the
mime-type of the editor.

The settings page is currently disabled. It will get enabled when a
second plug-in lands that has a ModelManagerSupport class.

Change-Id: I10023f52322ed6860397da15dba1c231e80e6517
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

These not only take less space than UTF-16 encoded QStrings, but due to
the caching in the CppEditorSupport also take less time to build.

This patch also fixes a number of possible encoding issues, where files
and constant strings were (falsely) assumed to be UTF-8.

Change-Id: Ib6f91c9a94ebed5b5dfbd4eb2998825c62c72784
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

Both semantic highlighting and code-completion go hand-in-hand, so now
the ModelManagerSupport class acts as a "factory" for the model manager.
Depending on the mime-type of the document in the editor, the model
manager will return the appropriate highlighter or code-completion
engine. If none is registered, the built-in fall-back is used.

Change-Id: I3e5dbb0e3b58e077dd5eda9aecb2ce5d448ac0b8
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

When a file is not part of any other project part, this project part can
be used to get at least some compiler flags, defines, etc. to use. This
can happen when either a file outside a project is opened, or when the
project description is incomplete.

Change-Id: I5d595fae7195e8b61dbad14368b6cae9eb15c21b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

This is step 1 of 2 for merging the various provider factories into a
single class. Merging has the advantage that selecting based on editor
(content) mime-type only has to select one class, instead of re-doing
the selection for each class separately.

Change-Id: I11f815151bd4769ae6028b636793d6a80d02e202
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Remove \briefs from function descriptions and use standard
wording in them.
Use standard wording for \enum.
Replace \param with \a.

Change-Id: If429b6fc67ef6d1313c18f6111aa84f9c996189f
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

And not from the global object pool. This way, the editors that have
different highlighters for various language dialects, or editors that
support multiple languages in a single editor, can decide themselves on
what CompletionAssistProvider to provide.

Change-Id: Ieebc4a8e7b3de6470fdb8103035aa3b8b2ba6598
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: I370f72fcf7a24216ee189979ce6b5c8bfc5f4140
Reviewed-by: David Schulz <david.schulz@digia.com>

Change-Id: I72993fda50ad70ad2d7c2f449923ac6e34b9e737
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

Change-Id: I4af8793ca69a3af9e99baeb7c31dad3864266f91
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

Change-Id: I38cc0e55348cac0245d2ab8f3e39c68de76e3e6d
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

(a) The code model manager figures out by itself which files were added
    or removed from the project.

    If this was done successfully, check also the timestamp of the
    common files and reindex if necessary.

(b) A full reindexing is only triggered if the project configuration
    changes (defines, includes, framework paths).

(c) If project files were removed, the garbage collector is called.

Task-number: QTCREATORBUG-9730
Change-Id: Ib855614b070880576233a3525813617c967a72f3
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>

...except the configuration file if no projects are open. For this case
there is no need to keep the configuration file around.

Task-number: QTCREATORBUG-9829

Change-Id: I51b01b30c17cbc1ced491ef2c47c338dae6ed983
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Currently GC() is invoked if
   - 5 CppEditors were closed or the last CppEditor was closed
   - a project is about to be removed
   - a session is about to be unloaded

Thus, for the following use cases, too much GC() calls (can) happen:
    - File > Close All
    - Close All Projects and Editors
    - Changing the session

Fixed by introducing a timer.

Change-Id: I9c984d9de735fc8c6ee77a518e9fb5b63dba5881
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Use it instead of retrieving this information from the document.

Change-Id: I809fcb2daf59021cf503c371a5d40d75d7448796
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

* Const correctness
* Better variable names
* Sort order of includes and forward declarations
* Comment fixes
* Cosmetic/Whitespace changes

Change-Id: Ieb137266ac7eddedb00c37f8b2cc8677d67e4bdd
Reviewed-by: David Schulz <david.schulz@digia.com>

Change-Id: Ic7e634e4249fb64edbc2daceb65ec8e9b5f0f8b9
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Aurindam Jana <aurindam.jana@digia.com>

This introduces an API change for the project managers. Those are not
expected to call updateSourceFiles() anymore.

Task-number: QTCREATORBUG-9581
Change-Id: I77befd29fb851c9acf87204d571da00183c9cd05
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Task-number: QTCREATORBUG-9828

Change-Id: Ie0ef9757cedb772702e49542b58d5b589506aa9e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

There is no need to have that logic in CppEditorWidget. The
CppModelManager knows how many editors are open and can therefore call
GC() by itself.

Change-Id: I2ed4051ad7b8c87615014d73e29291027d49d2ab
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

That is what it actually is, wrt how Qt API calls it.

Change-Id: Ied02055debf6aad75556b0d9d22e8ba2f72be555
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

When the editor is closed, the CppEditorSupport waits for the
highlighting and semantic info futures to finish. These futures might
access the CppEditorSupport through the CppModelManager, causing a
deadlock on the m_editorSupportMutex.

Change-Id: Ifeb3864ed3bc2666d83607ef50d7bfee8f3d118f
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

When a second project was opened the snapshot was reset. That resulted
in all kinds of problems since from then on the code model effectively
was not aware of the files of the first project.

The regression was introduced by commit a0d6df7b.

Change-Id: I1ccc9de68177205b49a4ba8ead2bc8abe4592b32
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>

Task-number: QTCREATORBUG-9597

Change-Id: I726a818c7d4af35dcb4863f74b08cd639a189bdd
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

QDoc does some magic with the \class and \namespaces
and \brief commands, so the following wording must be used:
"The xxx class yyy ..."

Change-Id: Id231f30e8464898b776888d5423523de404aae34
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

Task-number: QTCREATORBUG-9404

Change-Id: I732b729e64b065b4ac75c547d9370cbc64918a31
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Moved it from the handleIfDefDirective to the pre-defined macros, so
that #if defined() can also see it.

Task-number: QTCREATORBUG-9322
Change-Id: Icbecad5c885dd2374b559969c99631c3ddc73844
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: Ie7bd3b36139ab7fac1186cefa7222dff7277eb53
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: I399d667a1fccb376fadbd6ab8fbba243e86d8f4b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: I59fdb898e270af0fcc18e79ae922e119504ef10e
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

- Moved document update handling into CppTools.
- Moved semantic info calculation into CppTools.
- Moved semantic highlighting into CppTools.

Change-Id: I253861bf074a64b1f657f7a4a8e6583871b5285f
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

After processing configurationFileName() the first time, it was added to
the already seen files (m_included). Thus, on parsing further files, it
was ignored and with that all the project defines.

Task-number: QTCREATORBUG-9107
Change-Id: Ia4817dfa3b30ed27d142f7f3eeb6f099d0653441
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

This operation is quite costly if a lot of files are involved, and in
case of exiting Creator, it's also useless.

Change-Id: I97d178d47a3a2f6b214f7ebc45c871edd26b8286
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

Change-Id: Ib501bbe16548b194ff5028a1b3ab74c5f0e3230d
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>