There are three cases that must be handled:

 1. Completion in C++ style comment
 2. Completion in first line of a C style comment
 3. Completion in non-first line of a C style comment

This change fixes case 1 + 2. Case 3 will be addressed in a follow-up
change, same goes for the duplication.

Task-number: QTCREATORBUG-15143
Change-Id: I449711f965ddcbbe6158870a8a5ae33218e0d238
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>

* Update files in src/plugins

Change-Id: Ia5d77fad7d19d4bb3498e78661982f68729adb22
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

Didn't work if there was any folded text before the #include.

Change-Id: I8f16205f06bfaa8b8541401a9ebd5995c15b2227
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
Reviewed-by: Daniel Teske <daniel.teske@theqtcompany.com>

Needed for the ClangCodeModel tests, where we need to activate the clang
code model.

Change-Id: I368b840875ca2a46da4535338bf55967cbcdf5ea
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

For indexing we used a custom revision that was updated on each
modelManager BuiltinIndexingSupport::refreshSourceFiles() call. This
could lead to rejection of updated documents triggered by refactoring
actions, like for the following case:

 1. Open a project containing a.h and a.cpp
 2. Open a.cpp, insert some new lines, save and close the document
 3. Open a.h and rename a function that is defined in a.cpp
    --> The refactoring action modifies a.h and a.cpp, so re-indexing
        of those is triggered. Since a.cpp has already a higher revision
        (step 2) than the updated document, the updated document is
        discarded. As a consequence find usages and follow symbol fails
        for the renamed function.

Now the document call back provided to CppSourceProcessor is responsible
for updating the document revision based on the latest revision in the
global snapshot.

Change-Id: I4dfa0a4d34991655acfa749109f00c47b0fbfdbe
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

Regression introduced by

        commit 9fb5b0be
        CppTools: Add basic completion support for qt5 style signals/slots

Change-Id: I0a8e5ef31c1394512a51a26ed08b0f445add5acd
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

Change-Id: I711d5fb475ef814a1dc9d2822740e827f3f67125
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>

This implements the actual include_next logic and thus completes

    commit b934cc19
    C++: pass #include_next down to CppPreprocessor::tryIncludeFile

    commmit 140b5029
    C++: Highlight argument to gcc's #include_next extension

Based on https://gcc.gnu.org/onlinedocs/cpp/Wrapper-Headers.html



Task-number: QTCREATORBUG-10225
Change-Id: I7eef7f5ea64a114f6d092304d32b72c55c2ce134
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

...if the project was updated in the meanwhile.

If a project is updated mark invisible editor documents dirty and update
them if they get focus.

This also fixes document highlighting when restoring a session for
documents that the user "switched away" before the project info is
pushed to CppModelManager.

This completes

    CppTools: Update visible documents on project update
    commit c2eb91e0

which only takes care of visible documents.

Task-number: QTCREATORBUG-13270
Change-Id: Id445e7f509deac5d03194aecc54ce4629b7926ce
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

Change-Id: I3c22ef2685d7aa589f5d0ab74d693653a4c32082
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>

Change-Id: Ie6aaaa5d99ba3823d9d42331f45b2dcab397e1cd
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Replace the CppModelManagerInterface/derived CppModelManager
combo by a more common CppModelManager/CppModelManagerPrivate
pimpl pattern.

Change-Id: Ia4582845ed94d5ef60b8571bab9b2260c6290287
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

So far the pre-compiled headers were processed (thus defines from those
headers were visible), but the actual includes for the documents were
not added, which is necessary for lookup/completion.

Note that this will be only done if pre-compiled headers are not ignored
(Options > C++ > Code Model > [] Ignore pre-compiled headers).

Change-Id: I54a8e6b00597af164d958e3e9f2a1075ea187788
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Change-Id: Id86b72b275d3381a32003c0439ff2d6b3b6ab505
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Change-Id: I199e912203f329ec9b8bed2eb105e4a56f729e7d
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Unexports CppModelManager, CppSourceProcessor and CppToolsPlugin.

Now only some constructor signatures mention "Internal::" in the
exported symbols:

% nm --extern-only --demangle ./lib/qtcreator/plugins/libCppTools.so | grep "Internal::"
CppTools::CppClassesFilter::CppClassesFilter(CppTools::Internal::CppLocatorData*)
CppTools::CppClassesFilter::CppClassesFilter(CppTools::Internal::CppLocatorData*)
CppTools::CppEditorSupport::CppEditorSupport(CppTools::Internal::CppModelManager*, TextEditor::BaseTextEditor*)
CppTools::CppEditorSupport::CppEditorSupport(CppTools::Internal::CppModelManager*, TextEditor::BaseTextEditor*)

Change-Id: I167c21a6dc03cf02230c95fde66cf404e40df36f
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

They belong there. This will also kill the CppSourceProcessor dependency
from CppEditor.

Change-Id: Ic2ae6b0c6f0913d913636be61df194846985d1ce
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...since it does quite a bit more than only preprocessing, as the name
suggests. We use that class to process source files in general. The
output is not a preprocessed source, but a set of CPlusPlus::Documents
with symbols.

Change-Id: I787d0f22f9f042ddf0c99e8c2f0bdb9aa7001735
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

This caused displaced highlighting of macro uses after #if constructs.

MacroUse::utf16charBegin() was based on the last "continuation token",
which was wrong.

Change-Id: I89983d82fcf804ba853c04a59a7533c489785d05
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

This string table uniques strings, so that multiple identical strings
share their contents. It is used by the locator and the symbol searcher,
and will later be used by the class view.

Change-Id: Ib8b50f69bbf994d0d7a39b66dc8caf1a3d9bfb42
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

...of type 'No such file or directory' to the CPlusPlus::Document. Only
the first one was added and as a result, the editor only wavely
underlined that one.

Add also diagnostic messages if it's not possible to get the file
contents.

Change-Id: I8389d8e6af9480ea6712759ce5e130e1dd8912f1
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...in CPlusPlus::Document due to cyclic includes.

Task-number: QTCREATORBUG-11457
Change-Id: I1ca19c901c26d9984d795a61879dd6b41c57096c
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Use QCOMPARE instead of QVERIFY where appropriate.

Change-Id: I7965a00fd004b8c3a20186bb692bf541f154d12b
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

Task-number: QTCREATORBUG-5456

Change-Id: I0bb4756e3cdf3c87a4c2b0fbfe6953faaa5e1c52
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Task-number: QTCREATORBUG-11031

Change-Id: I93cce0ebf46984eb06094e1f1519717be2bbaa79
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Dynamically create data files in tempPath and clean them up when
finished.

Change-Id: Ie78f557b185b264acc0d0f5814646c203d8a93f4
Reviewed-by: Petar Perisin <petar.perisin@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Change-Id: Ib5423fdd064e4546f848c0b640b0ed0514c26d3a
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

Mostly done using the following Ruby script:

Fname = 'src/plugins/cpptools/cppcompletion_test.cpp'
s = File.read(Fname)
mod = s.gsub(/(?<declaration>void CppToolsPlugin::test_(?<test_name>[^(]+)\(\)\n\{)(?<body>.*?\n)\}/m) { |func|
  match = $~
  declaration = match['declaration']
  body = match['body']
  test_name = match['test_name'].sub('_data', '')
  final = body.gsub(/(?:completions.clear\(\);\s+)?(?: +)[^\n]* =\n(?<code>.*?);\s*(?<completions>(?:completions.append\(QLatin1String\("[^"]*"\)\);\s*)*)QTest::newRow\("case: (?<name>.+?)"\)\s*<< code << _\("(?<prefix>[^"]+)"\) << completions;/m) {
    m = $~
    res = "    QTest::newRow(\"#{test_name}: #{m['name']}\") << _(\n#{m['code'].rstrip}\n        ) << _(\"#{m['prefix']}\") << (QStringList()"
    m['completions'].scan(/completions.append\((.+)\);/) { |comp|
      res << "\n            << #{comp[0]}"
    }
    res + ');'
  }.gsub(/(?: +)[^\n]* =\n(?<code>.*?);\n\s*CompletionTestCase test\(.+?, "(?<prefix>.+?)"\);\s*QStringList expected;\s*(?<completions>(?:expected.append\(QLatin1String\("[^"]*"\)\);\s*)*)const QStringList completions = test.getCompletions\(\);\s*QCOMPARE\(completions, expected\);/m) {
    m = $~
    res = "    QTest::newRow(\"#{test_name}\") << _(\n#{m['code'].rstrip}\n        ) << _(\"#{m['prefix']}\") << (QStringList()"
    m['completions'].scan(/expected.append\((.+)\);/) { |comp|
      res << "\n            << #{comp[0]}"
    }
    res + ');'
  }.gsub(/(?: +)[^\n]* =\n(?<code>.*?);\n\s*CompletionTestCase test\(.+?(?:, (?<prefix>".+?"))?\);\s*(?:const )?QStringList completions = test.getCompletions\(\);\s*QCOMPARE\(completions.size\(\), \d+\);(?<completions>(?:\s*QVERIFY\(completions.contains\([^\n]+\);)*)\n/m) { |mm|
    m = $~
    res = "    QTest::newRow(\"#{test_name}\") << _(\n#{m['code'].rstrip}\n        ) << _(#{m['prefix']}) << (QStringList()"
    m['completions'].scan(/QVERIFY\(completions.contains\((.+?)\)\);/) { |comp|
      res << "\n            << #{comp[0]}"
    }
    res + ");\n"
  }.gsub(/(?: +)[^\n]* =\n(?<code>.*?);\n\s*CompletionTestCase test\(.+?(?:, (?<prefix>".+?"))?\);\s*bool replaceAccessOperator = false;\s*const QStringList completions = test.getCompletions\(\&replaceAccessOperator\);\s*QCOMPARE\(completions.size\(\), \d+\);(?<completions>(?:\s*QVERIFY\(completions.contains\([^\n]+\);)*)\s*QVERIFY\((?<replace>!?)[^)]*\);\n/m) { |mm|
    m = $~
    res = "    QTest::newRow(\"#{test_name}\") << _(\n#{m['code'].rstrip}\n        ) << _(#{m['prefix']}) << (QStringList()"
    m['completions'].scan(/QVERIFY\(completions.contains\((.+?)\)\);/) { |comp|
      res << "\n            << #{comp[0]}"
    }
    res + ")\n        << #{m['replace'].empty?};\n"
  }
  if final == body or final['QTest::addColumn']
    declaration + final + "}"
  else
    final
  end
}.gsub(/QTest::newRow\("([^"]+)"/) { |m|
  name = $1
  if name.size > 73
    space = name[0..73].rindex(/[ _]/)
    "QTest::newRow(\"#{name[0..space]}\"\n                  \"#{name[space+1..-1]}\""
  else
    m
  end
}.gsub(/\s+QTest::newRow/, "\n\n    QTest::newRow")
if mod != s
    File.open(Fname, 'wt').write(mod)
end

Change-Id: Id6bfb03cdf31ac27b36028fcdc861c340a5398f4
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

...and rename it to FunctionUtils.

Change-Id: If076ec01fd82e8ba728764bdeab7e87e8bc1ff3b
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Example:
namespace NS { struct S { int member; void fun(); }; }
using NS::S;
void S::fun()
{
mem// ctrl+space
}

Task-number: QTCREATORBUG-9037
Change-Id: I5a568be1b5c44deb02caa04996167a88a9c5d4d7
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: I7a82f2b22105d4e096fc0bd69679adacdde2c731
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

This reverts commit 5be56c07 except for its tests. While it fixed the
problem described in the bug report, it also introduced regressions.

For now, we use a hard limit.

Change-Id: I19a85be454e3d7969371707e3eb1c3d42a16ecee
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

This is the first phase of fixing bug QTCREATORBUG-10320.
This change resolves typedefs of template parameters(and resolves
problem with endless loop).

The next step will be matching appropriate template specialization
(this is needed to solve problem with missing code completion).

Missing matching: template specialization with the same parameters,
e.g.:
template <class T1, class T2, class T3>
class T
{
};

template <class T1, class T2>
class T<T1, T2, T2>
{
};

Task-number: QTCREATORBUG-10320
Change-Id: Icb6b539c021b2a67a66db9011a2e627f7d96526b
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

The UI side will come in another commit.

Change-Id: I1038a438587fe4cef70408f7f627d08837fc192d
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Task-number: QTCREATORBUG-476

Change-Id: I82ed92acdcda551d2c6a9ca221832ac20117a08f
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@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>

Since fuzzy completions are allowed, the lexicographically first proposal
is not necessarily most relevant. The patch modifies sorting of proposals
so that the exact match and continuations go first, and fuzzy completions
follow.

Moreover, being a continuation seem to be a more important characteristic
of a proposal, than being it a function argument or keyword etc. That's why
the check for continuation is placed before the check for order.

Task-number: QTCREATORBUG-8737
Task-number: QTCREATORBUG-9236
Change-Id: I89aae9d2ce6bfa59af7c2f75e6f3af00212008ca
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Alexey Zhondin <lexxmark.dev@gmail.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Some projects use separate directories for sources and headers.

An example tree:
*
|-- src
     |-- foo.cpp
|-- include
     |-- foo.h

Allow the user to specify directories for finding out-of-project related
header/source files, in addition to current directory

Task-number: QTCREATORBUG-8883
Change-Id: I57215c8f2feffcc246d0d161798290861bcfcdd4
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: Ia36e7e7142dbc030a428369ed04e76e70e8eef0b
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>