forked from qt-creator/qt-creator
		
	...to reduce file locking on Windows caused by clangbackend's parse/reparse jobs. Considering inactive application state should help for external VCS operations, e.g. on the command line. However, activating Qt Creator while such a VCS operation runs might still lead to undesired behavior, but this should be the less common case. VCS operations started from within Qt Creator should see less locking conflicts as we know when they start and finish. However, we just avoid starting new jobs - there might be still jobs running. Pending or new jobs will be started once Qt Creator is activated again and all VCS operations finished. Task-number: QTCREATORBUG-15449 Change-Id: I5f04c34f006e66162368efbdd58bd822a706f35e Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
		
			
				
	
	
		
			516 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			516 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "clangmodelmanagersupport.h"
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#include "clangconstants.h"
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#include "clangeditordocumentprocessor.h"
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#include "clangutils.h"
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#include "clangfollowsymbol.h"
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#include "clanghoverhandler.h"
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#include "clangprojectsettings.h"
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#include "clangrefactoringengine.h"
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#include "clangcurrentdocumentfilter.h"
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#include "clangoverviewmodel.h"
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#include <coreplugin/editormanager/editormanager.h>
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#include <cpptools/cppcodemodelsettings.h>
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#include <cpptools/cppfollowsymbolundercursor.h>
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#include <cpptools/cppmodelmanager.h>
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#include <cpptools/cpptoolsreuse.h>
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#include <cpptools/editordocumenthandle.h>
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#include <cpptools/projectinfo.h>
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#include <texteditor/quickfix.h>
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#include <projectexplorer/project.h>
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#include <projectexplorer/session.h>
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#include <clangsupport/filecontainer.h>
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#include <utils/algorithm.h>
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#include <utils/qtcassert.h>
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#include <QApplication>
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#include <QMenu>
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#include <QTextBlock>
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using namespace ClangCodeModel;
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using namespace ClangCodeModel::Internal;
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static ModelManagerSupportClang *m_instance = 0;
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static CppTools::CppModelManager *cppModelManager()
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{
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    return CppTools::CppModelManager::instance();
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}
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ModelManagerSupportClang::ModelManagerSupportClang()
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    : m_completionAssistProvider(m_communicator)
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    , m_followSymbol(new ClangFollowSymbol)
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    , m_refactoringEngine(new RefactoringEngine)
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{
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    QTC_CHECK(!m_instance);
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    m_instance = this;
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    QApplication::instance()->installEventFilter(this);
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    CppTools::CppModelManager::instance()->setCurrentDocumentFilter(
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                std::make_unique<ClangCurrentDocumentFilter>());
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    Core::EditorManager *editorManager = Core::EditorManager::instance();
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    connect(editorManager, &Core::EditorManager::editorOpened,
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            this, &ModelManagerSupportClang::onEditorOpened);
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    connect(editorManager, &Core::EditorManager::currentEditorChanged,
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            this, &ModelManagerSupportClang::onCurrentEditorChanged);
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    connect(editorManager, &Core::EditorManager::editorsClosed,
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            this, &ModelManagerSupportClang::onEditorClosed);
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    CppTools::CppModelManager *modelManager = cppModelManager();
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    connect(modelManager, &CppTools::CppModelManager::abstractEditorSupportContentsUpdated,
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            this, &ModelManagerSupportClang::onAbstractEditorSupportContentsUpdated);
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    connect(modelManager, &CppTools::CppModelManager::abstractEditorSupportRemoved,
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            this, &ModelManagerSupportClang::onAbstractEditorSupportRemoved);
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    connect(modelManager, &CppTools::CppModelManager::projectPartsUpdated,
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            this, &ModelManagerSupportClang::onProjectPartsUpdated);
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    connect(modelManager, &CppTools::CppModelManager::projectPartsRemoved,
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            this, &ModelManagerSupportClang::onProjectPartsRemoved);
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    auto *sessionManager = ProjectExplorer::SessionManager::instance();
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    connect(sessionManager, &ProjectExplorer::SessionManager::projectAdded,
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            this, &ModelManagerSupportClang::onProjectAdded);
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    connect(sessionManager, &ProjectExplorer::SessionManager::aboutToRemoveProject,
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            this, &ModelManagerSupportClang::onAboutToRemoveProject);
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    CppTools::CppCodeModelSettings *settings = CppTools::codeModelSettings().data();
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    connect(settings, &CppTools::CppCodeModelSettings::clangDiagnosticConfigsInvalidated,
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            this, &ModelManagerSupportClang::onDiagnosticConfigsInvalidated);
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}
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ModelManagerSupportClang::~ModelManagerSupportClang()
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{
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    QTC_CHECK(m_projectSettings.isEmpty());
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    m_instance = 0;
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}
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CppTools::CppCompletionAssistProvider *ModelManagerSupportClang::completionAssistProvider()
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{
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    return &m_completionAssistProvider;
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}
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TextEditor::BaseHoverHandler *ModelManagerSupportClang::createHoverHandler()
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{
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    return new Internal::ClangHoverHandler;
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}
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CppTools::FollowSymbolInterface &ModelManagerSupportClang::followSymbolInterface()
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{
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    return *m_followSymbol;
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}
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CppTools::RefactoringEngineInterface &ModelManagerSupportClang::refactoringEngineInterface()
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{
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    return *m_refactoringEngine;
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}
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std::unique_ptr<CppTools::AbstractOverviewModel> ModelManagerSupportClang::createOverviewModel()
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{
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    return std::make_unique<OverviewModel>();
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}
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void ModelManagerSupportClang::setBackendJobsPostponed(bool postponed)
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{
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    m_communicator.setBackendJobsPostponed(postponed);
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}
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CppTools::BaseEditorDocumentProcessor *ModelManagerSupportClang::createEditorDocumentProcessor(
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        TextEditor::TextDocument *baseTextDocument)
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{
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    return new ClangEditorDocumentProcessor(m_communicator, baseTextDocument);
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}
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void ModelManagerSupportClang::onCurrentEditorChanged(Core::IEditor *editor)
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{
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    m_communicator.documentVisibilityChanged();
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    // Update task hub issues for current CppEditorDocument
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    ClangEditorDocumentProcessor::clearTaskHubIssues();
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    if (!editor || !editor->document() || !cppModelManager()->isCppEditor(editor))
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        return;
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    const ::Utils::FileName filePath = editor->document()->filePath();
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    if (auto processor = ClangEditorDocumentProcessor::get(filePath.toString()))
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        processor->generateTaskHubIssues();
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}
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void ModelManagerSupportClang::connectTextDocumentToTranslationUnit(TextEditor::TextDocument *textDocument)
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{
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    // Handle externally changed documents
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    connect(textDocument, &Core::IDocument::aboutToReload,
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            this, &ModelManagerSupportClang::onCppDocumentAboutToReloadOnTranslationUnit,
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            Qt::UniqueConnection);
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    connect(textDocument, &Core::IDocument::reloadFinished,
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            this, &ModelManagerSupportClang::onCppDocumentReloadFinishedOnTranslationUnit,
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            Qt::UniqueConnection);
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    // Handle changes from e.g. refactoring actions
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    connectToTextDocumentContentsChangedForTranslationUnit(textDocument);
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}
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void ModelManagerSupportClang::connectTextDocumentToUnsavedFiles(TextEditor::TextDocument *textDocument)
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{
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    // Handle externally changed documents
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    connect(textDocument, &Core::IDocument::aboutToReload,
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            this, &ModelManagerSupportClang::onCppDocumentAboutToReloadOnUnsavedFile,
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            Qt::UniqueConnection);
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    connect(textDocument, &Core::IDocument::reloadFinished,
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            this, &ModelManagerSupportClang::onCppDocumentReloadFinishedOnUnsavedFile,
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            Qt::UniqueConnection);
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    // Handle changes from e.g. refactoring actions
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    connectToTextDocumentContentsChangedForUnsavedFile(textDocument);
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}
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void ModelManagerSupportClang::connectToTextDocumentContentsChangedForTranslationUnit(
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        TextEditor::TextDocument *textDocument)
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{
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    connect(textDocument, &TextEditor::TextDocument::contentsChangedWithPosition,
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            this, &ModelManagerSupportClang::onCppDocumentContentsChangedOnTranslationUnit,
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            Qt::UniqueConnection);
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}
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void ModelManagerSupportClang::connectToTextDocumentContentsChangedForUnsavedFile(
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        TextEditor::TextDocument *textDocument)
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{
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    connect(textDocument, &TextEditor::TextDocument::contentsChangedWithPosition,
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            this, &ModelManagerSupportClang::onCppDocumentContentsChangedOnUnsavedFile,
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            Qt::UniqueConnection);
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}
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void ModelManagerSupportClang::connectToWidgetsMarkContextMenuRequested(QWidget *editorWidget)
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{
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    const auto widget = qobject_cast<TextEditor::TextEditorWidget *>(editorWidget);
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    if (widget) {
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        connect(widget, &TextEditor::TextEditorWidget::markContextMenuRequested,
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                this, &ModelManagerSupportClang::onTextMarkContextMenuRequested);
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    }
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}
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bool ModelManagerSupportClang::eventFilter(QObject *obj, QEvent *e)
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{
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    if (obj == QApplication::instance() && e->type() == QEvent::ApplicationStateChange) {
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        switch (QApplication::applicationState()) {
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        case Qt::ApplicationInactive: setBackendJobsPostponed(true); break;
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        case Qt::ApplicationActive: setBackendJobsPostponed(false); break;
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        default:
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            QTC_CHECK(false && "Unexpected Qt::ApplicationState");
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        }
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    }
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    return false;
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}
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void ModelManagerSupportClang::onEditorOpened(Core::IEditor *editor)
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{
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    QTC_ASSERT(editor, return);
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    Core::IDocument *document = editor->document();
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    QTC_ASSERT(document, return);
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    TextEditor::TextDocument *textDocument = qobject_cast<TextEditor::TextDocument *>(document);
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    if (textDocument && cppModelManager()->isCppEditor(editor)) {
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        connectTextDocumentToTranslationUnit(textDocument);
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        connectToWidgetsMarkContextMenuRequested(editor->widget());
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        // TODO: Ensure that not fully loaded documents are updated?
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    }
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}
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void ModelManagerSupportClang::onEditorClosed(const QList<Core::IEditor *> &)
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{
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    m_communicator.documentVisibilityChanged();
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}
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void ModelManagerSupportClang::onCppDocumentAboutToReloadOnTranslationUnit()
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{
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    TextEditor::TextDocument *textDocument = qobject_cast<TextEditor::TextDocument *>(sender());
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    disconnect(textDocument, &TextEditor::TextDocument::contentsChangedWithPosition,
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               this, &ModelManagerSupportClang::onCppDocumentContentsChangedOnTranslationUnit);
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}
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void ModelManagerSupportClang::onCppDocumentReloadFinishedOnTranslationUnit(bool success)
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{
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    if (success) {
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        TextEditor::TextDocument *textDocument = qobject_cast<TextEditor::TextDocument *>(sender());
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        connectToTextDocumentContentsChangedForTranslationUnit(textDocument);
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        m_communicator.documentsChangedWithRevisionCheck(textDocument);
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    }
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}
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namespace {
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void clearDiagnosticFixIts(const QString &filePath)
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{
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    auto processor = ClangEditorDocumentProcessor::get(filePath);
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    if (processor)
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        processor->clearDiagnosticsWithFixIts();
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}
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}
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void ModelManagerSupportClang::onCppDocumentContentsChangedOnTranslationUnit(int position,
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                                                                             int /*charsRemoved*/,
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                                                                             int /*charsAdded*/)
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{
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    Core::IDocument *document = qobject_cast<Core::IDocument *>(sender());
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    m_communicator.updateChangeContentStartPosition(document->filePath().toString(),
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                                                       position);
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    m_communicator.documentsChangedIfNotCurrentDocument(document);
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    clearDiagnosticFixIts(document->filePath().toString());
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}
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void ModelManagerSupportClang::onCppDocumentAboutToReloadOnUnsavedFile()
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{
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    TextEditor::TextDocument *textDocument = qobject_cast<TextEditor::TextDocument *>(sender());
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    disconnect(textDocument, &TextEditor::TextDocument::contentsChangedWithPosition,
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               this, &ModelManagerSupportClang::onCppDocumentContentsChangedOnUnsavedFile);
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}
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void ModelManagerSupportClang::onCppDocumentReloadFinishedOnUnsavedFile(bool success)
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{
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    if (success) {
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        TextEditor::TextDocument *textDocument = qobject_cast<TextEditor::TextDocument *>(sender());
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        connectToTextDocumentContentsChangedForUnsavedFile(textDocument);
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        m_communicator.unsavedFilesUpdated(textDocument);
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    }
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}
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void ModelManagerSupportClang::onCppDocumentContentsChangedOnUnsavedFile()
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{
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    Core::IDocument *document = qobject_cast<Core::IDocument *>(sender());
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    m_communicator.unsavedFilesUpdated(document);
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}
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void ModelManagerSupportClang::onAbstractEditorSupportContentsUpdated(const QString &filePath,
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                                                                      const QByteArray &content)
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{
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    QTC_ASSERT(!filePath.isEmpty(), return);
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    const QString mappedPath = m_uiHeaderOnDiskManager.createIfNeeded(filePath);
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    m_communicator.unsavedFilesUpdated(mappedPath, content, 0);
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}
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void ModelManagerSupportClang::onAbstractEditorSupportRemoved(const QString &filePath)
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{
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    QTC_ASSERT(!filePath.isEmpty(), return);
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    if (!cppModelManager()->cppEditorDocument(filePath)) {
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        const QString mappedPath = m_uiHeaderOnDiskManager.remove(filePath);
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        const QString projectPartId = Utils::projectPartIdForFile(filePath);
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        m_communicator.unsavedFilesRemoved({{mappedPath, projectPartId}});
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    }
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}
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void addFixItsActionsToMenu(QMenu *menu, const TextEditor::QuickFixOperations &fixItOperations)
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{
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    foreach (const auto &fixItOperation, fixItOperations) {
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        QAction *action = menu->addAction(fixItOperation->description());
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        QObject::connect(action, &QAction::triggered, [fixItOperation]() {
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            fixItOperation->perform();
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        });
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    }
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}
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static int lineToPosition(const QTextDocument *textDocument, int lineNumber)
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{
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    QTC_ASSERT(textDocument, return 0);
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    const QTextBlock textBlock = textDocument->findBlockByLineNumber(lineNumber);
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    return textBlock.isValid() ? textBlock.position() - 1 : 0;
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}
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static TextEditor::AssistInterface createAssistInterface(TextEditor::TextEditorWidget *widget,
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                                                         int lineNumber)
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{
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    return TextEditor::AssistInterface(widget->document(),
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                                       lineToPosition(widget->document(), lineNumber),
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                                       widget->textDocument()->filePath().toString(),
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                                       TextEditor::IdleEditor);
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}
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void ModelManagerSupportClang::onTextMarkContextMenuRequested(TextEditor::TextEditorWidget *widget,
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                                                              int lineNumber,
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                                                              QMenu *menu)
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{
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    QTC_ASSERT(widget, return);
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    QTC_ASSERT(lineNumber >= 1, return);
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    QTC_ASSERT(menu, return);
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    const auto filePath = widget->textDocument()->filePath().toString();
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    ClangEditorDocumentProcessor *processor = ClangEditorDocumentProcessor::get(filePath);
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    if (processor) {
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        const auto assistInterface = createAssistInterface(widget, lineNumber);
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        const auto fixItOperations = processor->extraRefactoringOperations(assistInterface);
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        addFixItsActionsToMenu(menu, fixItOperations);
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    }
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}
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using ClangEditorDocumentProcessors = QVector<ClangEditorDocumentProcessor *>;
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static ClangEditorDocumentProcessors clangProcessors()
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{
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    ClangEditorDocumentProcessors result;
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    foreach (auto *editorDocument, cppModelManager()->cppEditorDocuments())
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        result.append(qobject_cast<ClangEditorDocumentProcessor *>(editorDocument->processor()));
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    return result;
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}
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static ClangEditorDocumentProcessors
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clangProcessorsWithProject(const ProjectExplorer::Project *project)
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{
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    return ::Utils::filtered(clangProcessors(), [project](ClangEditorDocumentProcessor *p) {
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        return p->hasProjectPart() && p->projectPart()->project == project;
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    });
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}
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static void updateProcessors(const ClangEditorDocumentProcessors &processors)
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{
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    CppTools::CppModelManager *modelManager = cppModelManager();
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    for (ClangEditorDocumentProcessor *processor : processors)
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        modelManager->cppEditorDocument(processor->filePath())->resetProcessor();
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    modelManager->updateCppEditorDocuments(/*projectsUpdated=*/ false);
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}
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void ModelManagerSupportClang::onProjectAdded(ProjectExplorer::Project *project)
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{
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    QTC_ASSERT(!m_projectSettings.value(project), return);
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    auto *settings = new Internal::ClangProjectSettings(project);
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    connect(settings, &Internal::ClangProjectSettings::changed, [project]() {
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        updateProcessors(clangProcessorsWithProject(project));
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    });
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    m_projectSettings.insert(project, settings);
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}
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						|
void ModelManagerSupportClang::onAboutToRemoveProject(ProjectExplorer::Project *project)
 | 
						|
{
 | 
						|
    ClangProjectSettings * const settings = m_projectSettings.value(project);
 | 
						|
    QTC_ASSERT(settings, return);
 | 
						|
    m_projectSettings.remove(project);
 | 
						|
    delete settings;
 | 
						|
}
 | 
						|
 | 
						|
void ModelManagerSupportClang::onProjectPartsUpdated(ProjectExplorer::Project *project)
 | 
						|
{
 | 
						|
    QTC_ASSERT(project, return);
 | 
						|
    const CppTools::ProjectInfo projectInfo = cppModelManager()->projectInfo(project);
 | 
						|
    QTC_ASSERT(projectInfo.isValid(), return);
 | 
						|
 | 
						|
    QStringList projectPartIds;
 | 
						|
    for (const CppTools::ProjectPart::Ptr &projectPart : projectInfo.projectParts())
 | 
						|
        projectPartIds.append(projectPart->id());
 | 
						|
    onProjectPartsRemoved(projectPartIds);
 | 
						|
}
 | 
						|
 | 
						|
void ModelManagerSupportClang::onProjectPartsRemoved(const QStringList &projectPartIds)
 | 
						|
{
 | 
						|
    if (!projectPartIds.isEmpty())
 | 
						|
        reinitializeBackendDocuments(projectPartIds);
 | 
						|
}
 | 
						|
 | 
						|
static ClangEditorDocumentProcessors clangProcessorsWithDiagnosticConfig(
 | 
						|
    const QVector<Core::Id> &configIds)
 | 
						|
{
 | 
						|
    return ::Utils::filtered(clangProcessors(), [configIds](ClangEditorDocumentProcessor *p) {
 | 
						|
        return configIds.contains(p->diagnosticConfigId());
 | 
						|
    });
 | 
						|
}
 | 
						|
 | 
						|
void ModelManagerSupportClang::onDiagnosticConfigsInvalidated(const QVector<Core::Id> &configIds)
 | 
						|
{
 | 
						|
    updateProcessors(clangProcessorsWithDiagnosticConfig(configIds));
 | 
						|
}
 | 
						|
 | 
						|
static ClangEditorDocumentProcessors
 | 
						|
clangProcessorsWithProjectParts(const QStringList &projectPartIds)
 | 
						|
{
 | 
						|
    return ::Utils::filtered(clangProcessors(), [projectPartIds](ClangEditorDocumentProcessor *p) {
 | 
						|
        return p->hasProjectPart() && projectPartIds.contains(p->projectPart()->id());
 | 
						|
    });
 | 
						|
}
 | 
						|
 | 
						|
void ModelManagerSupportClang::reinitializeBackendDocuments(const QStringList &projectPartIds)
 | 
						|
{
 | 
						|
    const auto processors = clangProcessorsWithProjectParts(projectPartIds);
 | 
						|
    foreach (ClangEditorDocumentProcessor *processor, processors) {
 | 
						|
        processor->closeBackendDocument();
 | 
						|
        processor->clearProjectPart();
 | 
						|
        processor->run();
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
ModelManagerSupportClang *ModelManagerSupportClang::instance()
 | 
						|
{
 | 
						|
    return m_instance;
 | 
						|
}
 | 
						|
 | 
						|
BackendCommunicator &ModelManagerSupportClang::communicator()
 | 
						|
{
 | 
						|
    return m_communicator;
 | 
						|
}
 | 
						|
 | 
						|
QString ModelManagerSupportClang::dummyUiHeaderOnDiskPath(const QString &filePath) const
 | 
						|
{
 | 
						|
    return m_uiHeaderOnDiskManager.mapPath(filePath);
 | 
						|
}
 | 
						|
 | 
						|
ClangProjectSettings &ModelManagerSupportClang::projectSettings(
 | 
						|
    ProjectExplorer::Project *project) const
 | 
						|
{
 | 
						|
    return *m_projectSettings.value(project);
 | 
						|
}
 | 
						|
 | 
						|
QString ModelManagerSupportClang::dummyUiHeaderOnDiskDirPath() const
 | 
						|
{
 | 
						|
    return m_uiHeaderOnDiskManager.directoryPath();
 | 
						|
}
 | 
						|
 | 
						|
QString ModelManagerSupportProviderClang::id() const
 | 
						|
{
 | 
						|
    return QLatin1String(Constants::CLANG_MODELMANAGERSUPPORT_ID);
 | 
						|
}
 | 
						|
 | 
						|
QString ModelManagerSupportProviderClang::displayName() const
 | 
						|
{
 | 
						|
    //: Display name
 | 
						|
    return QCoreApplication::translate("ClangCodeModel::Internal::ModelManagerSupport",
 | 
						|
                                       "Clang");
 | 
						|
}
 | 
						|
 | 
						|
CppTools::ModelManagerSupport::Ptr ModelManagerSupportProviderClang::createModelManagerSupport()
 | 
						|
{
 | 
						|
    return CppTools::ModelManagerSupport::Ptr(new ModelManagerSupportClang);
 | 
						|
}
 |