Review Request 118238: Get the top-level context associated with a QML module

Sven Brauch svenbrauch at googlemail.com
Thu May 22 16:20:05 UTC 2014


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https://git.reviewboard.kde.org/r/118238/#review58321
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Sorry, what exactly do I do to make it fail? I applied your patch and added import QtQuick 1.0 to tests/files/plugins.qml, then ran ./tests/filestest. I understood this should crash, but it doesn't. Am I doing it wrong? ;)

- Sven Brauch


On May 22, 2014, 2:56 p.m., Denis Steckelmacher wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/118238/
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> 
> (Updated May 22, 2014, 2:56 p.m.)
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> 
> Review request for KDevelop.
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> Repository: kdev-qmljs
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> Description
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> This patch adds a method that returns the top-level DUContext associated with a QML plugin. It uses KStandardDirs to get the plugin.qmltypes file associated with the module (these files are installed by the plugin in KDE_DATA/kdevqmljssupport/qmlplugins/Module.qml), and then schedules a parse job for the file. If the file has already been parsed, then its top level context is returned. This method will be used to implement import statements. The module files and the complete support for import statements can be found in the "import_statements" of kde:scratch/dsteckelmacher.
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> Diffs
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>   duchain/declarationbuilder.h 265d0ce 
>   duchain/declarationbuilder.cpp 10701bd 
>   duchain/parsesession.h 0facef4 
>   duchain/parsesession.cpp 998e5b0 
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> Diff: https://git.reviewboard.kde.org/r/118238/diff/
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> 
> Testing
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> This patch cannot be tested as the method is not yet called, but the support for import statements is already implemented in my kde:scratch/dsteckelmacher repository. Import statements work right in KDevelop, but the unit tests segfault when they have to parse a file containing an import. The crash always happens in an openDeclaration() or currentDeclaration() call, and if I comment the faulting call, another one will crash. The crash does not happen anymore if I remove the calls to "bgparser->addDocument" added in this patch, and does not happen in a complete KDevelop instance.
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> I'm therefore wondering how the background parser can interact with openDeclaration(). I've checked and a DUChainReadLock or a DUChainWriteLock is always held when openDeclaration() is called, but maybe there are other locks that may be needed. I turn to more advanced KDevelop developers on this matter.
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> Thanks,
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> Denis Steckelmacher
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>

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