Follow symbol in current TU or dependent files
Current algorithm tries to do the same as built-in
follow symbol but better.
Currently clang-based follow symbol has some limitations:
- following function usage may return the declaration
instead of definition because we don't have header
dependencies in backend
- overrides are not searched because of the same reason
and the amount of dependent files (parsing 250 files
takes a while)
- some includes are not handled correctly, in that case
we return failure and ask built-in code model to follow
(example: <QtGui> or other qt includes)
Change-Id: If35028ee0b5e818fdba29363c9520c5cca996348
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
...to free some memory.
The translation units of the 7 most recently used documents ("hot
documents", tracked by document visibility) are kept in memory.
Translation units of other documents are suspended and will be resumed
once they become visible again.
The resumption of a translation unit needs the same time as reparse
(since it is a reparse effectively).
The number of hot documents can be modified by the run time environment
variable QTC_CLANG_HOT_DOCUMENTS=N. Visible documents are always hot.
Task-number: QTCREATORBUG-11640
Change-Id: I68ecd2b1373e303372300203e42d90f65a4b39b3
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
Reviewed-by: Marco Bubke <marco.bubke@qt.io>
Parsing happens rotationally on the translation units.
The recently parsed translation unit is used for completion jobs while
the older version is used for parse jobs.
Advantages:
A1. A completion job cannot be blocked anymore by currently running
parse job.
A2. Faster triggering of parse jobs. A reparse was triggered about
1650ms after the last keystroke. This is down to 500ms now since we
do not have a blocking translation unit for the completion anymore.
Disadvantages:
D1. Memory consumption is doubled for an edited document.
This could be addressed by suspending the second translation unit
after some time of inactivity.
D2. Setup of the supportive translation unit takes some time.
Change-Id: I958c883c01f274530f5482c788c15cd38d6f4c3e
Reviewed-by: David Schulz <david.schulz@qt.io>
A TranslationUnit is owned by TranslationUnits now. TranslationUnits
allows to add another TranslationUnit and to update/query the recently
and previously parsed translation unit.
This does not change any behavior yet.
Change-Id: I8a2f0cc05d3e51bf739dd5d7c4da14b54147f3ab
Reviewed-by: David Schulz <david.schulz@qt.io>
...in preparation for follow-up changes. This will enable e.g. a timer
per document.
This does not change any behavior yet.
Change-Id: Ic1dc06de602373c666d47ce7a95ab99e56d389d5
Reviewed-by: David Schulz <david.schulz@qt.io>
ClangString is called many times so inlining the thin wrapper brings
little performance advantages without any disadvantages.
Change-Id: Ieb1229cf8e81ed3fda859254230df14d56c405ca
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
The "TranslationUnit parts" moved already to TranslationUnitCore.
Change-Id: I2bea7847e2b3e84fbfacc3d2dc43f180873349ac
Reviewed-by: David Schulz <david.schulz@qt.io>
Speed ups the typical use cases that can profit from this:
* Change a header file and switch then to source file
* Open documents one after the other (Follow Symbol)
* Change documents visible in splits (e.g. by refactoring action)
* Restore a session with multiple splits
Fixes the test ClangIpcServer.GetCodeCompletionDependingOnArgumets.
Change-Id: Ia575bd59780df14146dfc091a4d48794e4a0543d
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Extract TranslationUnitCore, which is the API for the high-level
operations we need. TranslationUnit does not call any clang_* functions
anymore, except the one needed for disposing the CXTranslationUnit - for
now, we keep TranslationUnit the owner of TranslationUnitCore.
TranslationUnitCore will be passed on to the worker threads.
With this, the current "TranslationUnit" looses its meaning. We will
rename it to "Document" in a follow-up change.
***
TranslationUnit::cxTranslationUnit does not implicitly
creates/parses/reparses anymore. We use more verbose update operations
now.
The test ClangIpcServer.GetCodeCompletionDependingOnArgumets fails now
because of this - CodeCompleter::completeHelper() does not recreate the
translation unit anymore, thus working on the old data.
This will be addressed in a follow-up change.
Change-Id: I6213d6f1609cd3c9a54666c84cb8b623b2fefe1c
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
...in preparation for concurrent processing of documents.
Parsing and reparsing is handled by TranslationUnit. Since we will do
this in a different thread, extract the core logic into the new class
TranslationUnitUpdater, so that we can prepare the necessary data for
the run and then later incorporate the results of the parse/reparse.
Change-Id: Ic9d936d193ee6795a755f0cfc38c0b2a7bd402cc
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
* Make the necessary data implicitly shared since it might get
accessed/modified from two different threads with follow-up changes.
This applies for UnsavedFiles/UnsavedFile and ProjectPart::arguments().
* Avoid returning references.
Change-Id: I98842c1cb90ae0d344a15c63b72cbc89568722d3
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
libclang 3.8 seems to be sensitive to file paths separators [1]. On Windows,
this led to not updated document annotations and/or crashes after reparsing.
When passing file paths to libclang, convert to native separators.
When getting file paths from libclang, convert back.
This handles:
* main file path
* file paths of the unsaved files
* -I<DIR> arguments, the resource path (for builtins) and the paths to the
wrapped qt headers
* included header files from libclang
* source locations from libclang
Also, minimize the conversion in SourceLocation to a minimum by making
filePath() lazy.
[1] https://llvm.org/bugs/show_bug.cgi?id=28381
Change-Id: If5866f34a6fdc6b34b16c022d3988e8e6eae2a0a
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
We want to share more functionality of the IPC mechanism and for what we
need more interface classes. But we use this names already for the
ClangCodeModel implementation. So we rename the them to ClangCodeModel*.
Change-Id: Ie320e0d3b993586a9bcc6a5aa0d32427af41202e
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
The position of the dot character was determined on an outdated
translation unit.
We queried the translation unit for the source location of the dot
character, but apparently clang_codeCompleteAt() does not update the
source locations for the translation unit. And we do not want to reparse
since this is expensive. Thus, determine the byte position manually by
scanning over the document until the right line/column is reached.
Change-Id: I25e256bb81a83bb71c7e46a0fb3e927bf4031b16
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Remember whether clang_parseTranslationUnit() or
clang_reparseTranslationUnit() failed the last time and do not trigger
parse/reparse again.
Also, check whether the main file exists before reparsing.
Task-number: QTCREATORBUG-16051
Task-number: QTCREATORBUG-16140
Change-Id: Ied39e66a18032854911229898573941fe2ada35b
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
This simplifies UnsavedFiles and makes TemporaryModifiedUnsavedFiles
useless.
Change-Id: I1896f971215ed22ce7aa7bf21b16381862b7469d
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>
1 struct Foo { int member; };
2 void f(Foo *foo)
3 {
4 foo.<REQUEST COMPLETION> // correct '.' to '->' and provide results
5 }
The preferred approach would be to check if "foo" in line 4 is of
pointer type, but there is no suitable cursor (only CompoundStmt) at
that position since the code is usually not yet parsed and thus invalid.
Thus, just run the completion as is. If there are not any results for a
dot completion, re-run the completion with "." exchanged by "->". This
approach is inherently slower than the preferred approach implemented in
the built-in code model.
The following rare cases are not handled:
1) Requesting completion after white space:
Works: foo.<COMPLETE HERE>
Fails: foo. <COMPLETE HERE>
2) Opening a file and requesting completion (ctrl+space) without prior
editing. No editing before triggering completion means that no
unsaved file is generated on the backend side, which is a
requirement for the correction.
Task-number: QTCREATORBUG-11581
Change-Id: I6bc8e8594778774ab342755fdb01a8a3e5c52ba0
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>
Prepare the move of the semantic highlighting to the clang back end. We
have it under tests too so it should be quite easy to make changes or
corrections.
Change-Id: I5706a8a06fde5a9ba2eba3a8ba62782102ac0bd3
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
Provide the language option (e.g. "-x c++-header") when registering a
translation unit for the editor.
Task-number: QTCREATORBUG-14787
Change-Id: Ie06f9fdab302f1b21ba72cdb65b6aabf9f7bc04c
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>
If an editor is changing all translation units independent of their project
part they must be updated too. So we introduce a new message to update all
translation units with the same file path.
Change-Id: I70d0ea2bbca9fa880111ff7219573e54f3277026
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
Includes are now watched by a file watcher. Unsaved file changes are
watched too. If they are changed the translation units which depend on
them are set to a state which require a reparse. Later the diagnostics
of this units are collected and send back to creator.
Change-Id: I2fb5c7dd6644687f22399edd8d18edd6215c9505
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
Diagnostics are now moved to the clang backend process. Fixits are
supported too.
Change-Id: I20faacf466bbf78dec479220c3d7b336a47bc453
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
