forked from qt-creator/qt-creator
db897f8146
For some reason it doesn't like signals with QFutures. Going back to pointers, but copying the future from there when it's used. Change-Id: I8dea0817b4e59ede6874ab8be01f22a92e7402a0 Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
630 lines
21 KiB
C++
630 lines
21 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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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 Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "cppcodemodelsettings.h"
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#include "cppcompletionassistprovider.h"
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#include "cpptoolseditorsupport.h"
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#include "cpptoolsplugin.h"
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#include "cppmodelmanager.h"
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#include "cpplocalsymbols.h"
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#include <coreplugin/editormanager/editormanager.h>
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#include <utils/qtcassert.h>
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#include <utils/runextensions.h>
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#include <QList>
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#include <QMutexLocker>
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#include <QTextBlock>
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#include <QTimer>
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using namespace CppTools;
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using namespace CppTools::Internal;
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using namespace CPlusPlus;
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using namespace TextEditor;
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namespace {
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class FunctionDefinitionUnderCursor: protected ASTVisitor
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{
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unsigned _line;
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unsigned _column;
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DeclarationAST *_functionDefinition;
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public:
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FunctionDefinitionUnderCursor(TranslationUnit *translationUnit)
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: ASTVisitor(translationUnit),
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_line(0), _column(0)
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{ }
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DeclarationAST *operator()(AST *ast, unsigned line, unsigned column)
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{
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_functionDefinition = 0;
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_line = line;
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_column = column;
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accept(ast);
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return _functionDefinition;
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}
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protected:
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virtual bool preVisit(AST *ast)
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{
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if (_functionDefinition)
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return false;
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if (FunctionDefinitionAST *def = ast->asFunctionDefinition())
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return checkDeclaration(def);
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if (ObjCMethodDeclarationAST *method = ast->asObjCMethodDeclaration()) {
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if (method->function_body)
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return checkDeclaration(method);
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}
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return true;
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}
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private:
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bool checkDeclaration(DeclarationAST *ast)
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{
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unsigned startLine, startColumn;
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unsigned endLine, endColumn;
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getTokenStartPosition(ast->firstToken(), &startLine, &startColumn);
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getTokenEndPosition(ast->lastToken() - 1, &endLine, &endColumn);
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if (_line > startLine || (_line == startLine && _column >= startColumn)) {
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if (_line < endLine || (_line == endLine && _column < endColumn)) {
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_functionDefinition = ast;
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return false;
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}
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}
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return true;
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}
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};
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} // anonymous namespace
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CppEditorSupport::CppEditorSupport(CppModelManager *modelManager, BaseTextEditor *textEditor)
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: QObject(modelManager)
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, m_modelManager(modelManager)
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, m_textEditor(textEditor)
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, m_updateDocumentInterval(UpdateDocumentDefaultInterval)
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, m_revision(0)
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, m_editorVisible(textEditor->widget()->isVisible())
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, m_cachedContentsEditorRevision(-1)
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, m_fileIsBeingReloaded(false)
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, m_initialized(false)
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, m_lastHighlightRevision(0)
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, m_highlightingSupport(modelManager->highlightingSupport(textEditor))
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, m_completionAssistProvider(m_modelManager->completionAssistProvider(textEditor))
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{
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connect(m_modelManager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
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this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
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if (m_highlightingSupport && m_highlightingSupport->requiresSemanticInfo()) {
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connect(this, SIGNAL(semanticInfoUpdated(CppTools::SemanticInfo)),
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this, SLOT(startHighlighting()));
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}
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m_updateDocumentTimer = new QTimer(this);
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m_updateDocumentTimer->setSingleShot(true);
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m_updateDocumentTimer->setInterval(m_updateDocumentInterval);
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connect(m_updateDocumentTimer, SIGNAL(timeout()), this, SLOT(updateDocumentNow()));
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m_updateEditorTimer = new QTimer(this);
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m_updateEditorTimer->setInterval(UpdateEditorInterval);
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m_updateEditorTimer->setSingleShot(true);
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connect(m_updateEditorTimer, SIGNAL(timeout()),
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this, SLOT(updateEditorNow()));
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connect(m_textEditor->document(), SIGNAL(contentsChanged()), this, SLOT(updateDocument()));
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connect(this, SIGNAL(diagnosticsChanged()), this, SLOT(onDiagnosticsChanged()));
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connect(m_textEditor->document(), SIGNAL(mimeTypeChanged()),
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this, SLOT(onMimeTypeChanged()));
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connect(m_textEditor->document(), SIGNAL(aboutToReload()),
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this, SLOT(onAboutToReload()));
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connect(m_textEditor->document(), SIGNAL(reloadFinished(bool)),
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this, SLOT(onReloadFinished()));
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connect(Core::EditorManager::instance(), SIGNAL(currentEditorChanged(Core::IEditor*)),
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this, SLOT(onCurrentEditorChanged()));
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m_editorGCTimer = new QTimer(this);
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m_editorGCTimer->setSingleShot(true);
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m_editorGCTimer->setInterval(EditorHiddenGCTimeout);
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connect(m_editorGCTimer, SIGNAL(timeout()), this, SLOT(releaseResources()));
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updateDocument();
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}
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CppEditorSupport::~CppEditorSupport()
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{
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m_documentParser.cancel();
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m_highlighter.cancel();
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m_futureSemanticInfo.cancel();
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m_documentParser.waitForFinished();
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m_highlighter.waitForFinished();
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m_futureSemanticInfo.waitForFinished();
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}
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QString CppEditorSupport::fileName() const
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{
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return m_textEditor->document()->filePath();
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}
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QByteArray CppEditorSupport::contents() const
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{
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QMutexLocker locker(&m_cachedContentsLock);
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const int editorRev = editorRevision();
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if (m_cachedContentsEditorRevision != editorRev && !m_fileIsBeingReloaded) {
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m_cachedContentsEditorRevision = editorRev;
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m_cachedContents = m_textEditor->textDocument()->plainText().toUtf8();
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}
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return m_cachedContents;
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}
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unsigned CppEditorSupport::editorRevision() const
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{
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return m_textEditor->editorWidget()->document()->revision();
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}
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void CppEditorSupport::setExtraDiagnostics(const QString &key,
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const QList<Document::DiagnosticMessage> &messages)
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{
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{
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QMutexLocker locker(&m_diagnosticsMutex);
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m_allDiagnostics.insert(key, messages);
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}
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emit diagnosticsChanged();
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}
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void CppEditorSupport::setIfdefedOutBlocks(const QList<BlockRange> &ifdefedOutBlocks)
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{
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m_editorUpdates.ifdefedOutBlocks = ifdefedOutBlocks;
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emit diagnosticsChanged();
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}
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bool CppEditorSupport::initialized()
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{
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return m_initialized;
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}
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SemanticInfo CppEditorSupport::recalculateSemanticInfo(bool emitSignalWhenFinished)
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{
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m_futureSemanticInfo.cancel();
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SemanticInfo::Source source = currentSource(false);
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recalculateSemanticInfoNow(source, emitSignalWhenFinished);
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return m_lastSemanticInfo;
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}
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Document::Ptr CppEditorSupport::lastSemanticInfoDocument() const
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{
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QMutexLocker locker(&m_lastSemanticInfoLock);
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return m_lastSemanticInfo.doc;
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}
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void CppEditorSupport::recalculateSemanticInfoDetached(bool force)
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{
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// Block premature calculation caused by CppEditorPlugin::currentEditorChanged
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// when the editor is created.
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if (!m_initialized)
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return;
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m_futureSemanticInfo.cancel();
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SemanticInfo::Source source = currentSource(force);
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m_futureSemanticInfo = QtConcurrent::run<CppEditorSupport, void>(
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&CppEditorSupport::recalculateSemanticInfoDetached_helper, this, source);
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if (force && m_highlightingSupport && !m_highlightingSupport->requiresSemanticInfo())
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startHighlighting();
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}
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CppCompletionAssistProvider *CppEditorSupport::completionAssistProvider() const
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{
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return m_completionAssistProvider;
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}
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QSharedPointer<SnapshotUpdater> CppEditorSupport::snapshotUpdater()
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{
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QSharedPointer<SnapshotUpdater> updater = m_snapshotUpdater;
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if (!updater || updater->fileInEditor() != fileName()) {
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updater = QSharedPointer<SnapshotUpdater>(new SnapshotUpdater(fileName()));
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m_snapshotUpdater = updater;
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QSharedPointer<CppCodeModelSettings> cms = CppToolsPlugin::instance()->codeModelSettings();
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updater->setUsePrecompiledHeaders(cms->pchUsage() != CppCodeModelSettings::PchUse_None);
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}
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return updater;
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}
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void CppEditorSupport::updateDocument()
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{
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m_revision = editorRevision();
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if (qobject_cast<BaseTextEditorWidget*>(m_textEditor->widget()) != 0)
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m_updateEditorTimer->stop();
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m_updateDocumentTimer->start(m_updateDocumentInterval);
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}
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static void parse(QFutureInterface<void> &future, QSharedPointer<SnapshotUpdater> updater)
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{
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future.setProgressRange(0, 1);
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if (future.isCanceled()) {
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future.setProgressValue(1);
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return;
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}
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CppModelManager *cmm = qobject_cast<CppModelManager *>(CppModelManager::instance());
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updater->update(cmm->workingCopy());
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cmm->finishedRefreshingSourceFiles(QStringList(updater->fileInEditor()));
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future.setProgressValue(1);
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}
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void CppEditorSupport::updateDocumentNow()
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{
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if (m_documentParser.isRunning() || m_revision != editorRevision()) {
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m_updateDocumentTimer->start(m_updateDocumentInterval);
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} else {
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m_updateDocumentTimer->stop();
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if (m_fileIsBeingReloaded || fileName().isEmpty())
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return;
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if (m_highlightingSupport && !m_highlightingSupport->requiresSemanticInfo())
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startHighlighting();
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m_documentParser = QtConcurrent::run(&parse, snapshotUpdater());
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}
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}
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bool CppEditorSupport::isUpdatingDocument()
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{
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return m_updateDocumentTimer->isActive() || m_documentParser.isRunning();
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}
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void CppEditorSupport::onDocumentUpdated(Document::Ptr doc)
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{
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if (doc.isNull())
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return;
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if (doc->fileName() != fileName())
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return; // some other document got updated
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if (doc->editorRevision() != editorRevision())
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return; // outdated content, wait for a new document to be parsed
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// Update the ifdeffed-out blocks:
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if (m_highlightingSupport && !m_highlightingSupport->hightlighterHandlesIfdefedOutBlocks()) {
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QList<Document::Block> skippedBlocks = doc->skippedBlocks();
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QList<BlockRange> ifdefedOutBlocks;
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ifdefedOutBlocks.reserve(skippedBlocks.size());
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foreach (const Document::Block &block, skippedBlocks)
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ifdefedOutBlocks.append(BlockRange(block.begin(), block.end()));
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setIfdefedOutBlocks(ifdefedOutBlocks);
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}
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if (m_highlightingSupport && !m_highlightingSupport->hightlighterHandlesDiagnostics()) {
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// Update the parser errors/warnings:
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static const QString key = QLatin1String("CppTools.ParserDiagnostics");
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setExtraDiagnostics(key, doc->diagnosticMessages());
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}
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// update semantic info in a future
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if (!m_initialized ||
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(m_textEditor->widget()->isVisible()
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&& (m_lastSemanticInfo.doc.isNull()
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|| m_lastSemanticInfo.doc->translationUnit()->ast() == 0
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|| m_lastSemanticInfo.doc->fileName() != fileName()))) {
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m_initialized = true;
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recalculateSemanticInfoDetached(/* force = */ true);
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}
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// notify the editor that the document is updated
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emit documentUpdated();
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}
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void CppEditorSupport::startHighlighting()
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{
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if (!m_highlightingSupport)
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return;
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// Start highlighting only if the editor is or would be visible
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// (in case another mode is active) in the edit mode.
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if (!Core::EditorManager::visibleEditors().contains(m_textEditor))
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return;
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if (m_highlightingSupport->requiresSemanticInfo()) {
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Snapshot snapshot;
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Document::Ptr doc;
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unsigned revision;
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bool forced;
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{
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QMutexLocker locker(&m_lastSemanticInfoLock);
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snapshot = m_lastSemanticInfo.snapshot;
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doc = m_lastSemanticInfo.doc;
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revision = m_lastSemanticInfo.revision;
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forced = m_lastSemanticInfo.forced;
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}
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if (doc.isNull())
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return;
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if (!forced && m_lastHighlightRevision == revision)
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return;
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m_highlighter.cancel();
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m_highlighter = m_highlightingSupport->highlightingFuture(doc, snapshot);
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m_lastHighlightRevision = revision;
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emit highlighterStarted(&m_highlighter, m_lastHighlightRevision);
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} else {
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const unsigned revision = currentSource(false).revision;
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if (m_lastHighlightRevision == revision)
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return;
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m_lastHighlightRevision = revision;
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static const Document::Ptr dummyDoc;
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static const Snapshot dummySnapshot;
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m_highlighter = m_highlightingSupport->highlightingFuture(dummyDoc, dummySnapshot);
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emit highlighterStarted(&m_highlighter, m_lastHighlightRevision);
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}
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}
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/// \brief This slot puts the new diagnostics into the editorUpdates. This function has to be called
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/// on the UI thread.
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void CppEditorSupport::onDiagnosticsChanged()
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{
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QList<Document::DiagnosticMessage> allDiagnostics;
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{
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QMutexLocker locker(&m_diagnosticsMutex);
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foreach (const QList<Document::DiagnosticMessage> &msgs, m_allDiagnostics)
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allDiagnostics.append(msgs);
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}
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if (!m_textEditor)
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return;
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// set up the format for the errors
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QTextCharFormat errorFormat;
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errorFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);
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errorFormat.setUnderlineColor(Qt::red);
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// set up the format for the warnings.
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QTextCharFormat warningFormat;
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warningFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);
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warningFormat.setUnderlineColor(Qt::darkYellow);
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QTextDocument *doc = m_textEditor->editorWidget()->document();
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m_editorUpdates.selections.clear();
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foreach (const Document::DiagnosticMessage &m, allDiagnostics) {
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QTextEdit::ExtraSelection sel;
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if (m.isWarning())
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sel.format = warningFormat;
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else
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sel.format = errorFormat;
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QTextCursor c(doc->findBlockByNumber(m.line() - 1));
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const QString text = c.block().text();
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if (m.length() > 0 && m.column() + m.length() < (unsigned)text.size()) {
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int column = m.column() > 0 ? m.column() - 1 : 0;
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c.setPosition(c.position() + column);
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c.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, m.length());
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} else {
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for (int i = 0; i < text.size(); ++i) {
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if (!text.at(i).isSpace()) {
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c.setPosition(c.position() + i);
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break;
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}
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}
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c.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
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}
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sel.cursor = c;
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sel.format.setToolTip(m.text());
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m_editorUpdates.selections.append(sel);
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}
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m_editorUpdates.revision = doc->revision();
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updateEditor();
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}
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void CppEditorSupport::updateEditor()
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{
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m_updateEditorTimer->start(UpdateEditorInterval);
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}
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void CppEditorSupport::updateEditorNow()
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{
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if (!m_textEditor)
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return;
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BaseTextEditorWidget *editorWidget = m_textEditor->editorWidget();
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if (editorWidget->document()->revision() != m_editorUpdates.revision)
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return; // outdated
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editorWidget->setExtraSelections(BaseTextEditorWidget::CodeWarningsSelection,
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m_editorUpdates.selections);
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editorWidget->setIfdefedOutBlocks(m_editorUpdates.ifdefedOutBlocks);
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}
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void CppEditorSupport::onCurrentEditorChanged()
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{
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bool editorVisible = m_textEditor->widget()->isVisible();
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if (m_editorVisible != editorVisible) {
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m_editorVisible = editorVisible;
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if (editorVisible) {
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m_editorGCTimer->stop();
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QMutexLocker locker(&m_lastSemanticInfoLock);
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if (!m_lastSemanticInfo.doc)
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updateDocumentNow();
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} else {
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m_editorGCTimer->start(EditorHiddenGCTimeout);
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}
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}
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}
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void CppEditorSupport::releaseResources()
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{
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m_highlighter.cancel();
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m_highlighter = QFuture<TextEditor::HighlightingResult>();
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snapshotUpdater()->releaseSnapshot();
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QMutexLocker semanticLocker(&m_lastSemanticInfoLock);
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m_lastSemanticInfo = SemanticInfo();
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}
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SemanticInfo::Source CppEditorSupport::currentSource(bool force)
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{
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int line = 0, column = 0;
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m_textEditor->convertPosition(m_textEditor->editorWidget()->position(), &line, &column);
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const Snapshot snapshot = snapshotUpdater()->snapshot();
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QByteArray code;
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if (force || m_lastSemanticInfo.revision != editorRevision())
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code = contents(); // get the source code only when needed.
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const unsigned revision = editorRevision();
|
|
SemanticInfo::Source source(snapshot, fileName(), code, line, column, revision, force);
|
|
return source;
|
|
}
|
|
|
|
void CppEditorSupport::recalculateSemanticInfoNow(const SemanticInfo::Source &source,
|
|
bool emitSignalWhenFinished,
|
|
TopLevelDeclarationProcessor *processor)
|
|
{
|
|
SemanticInfo semanticInfo;
|
|
|
|
{
|
|
QMutexLocker locker(&m_lastSemanticInfoLock);
|
|
semanticInfo.revision = m_lastSemanticInfo.revision;
|
|
semanticInfo.forced = source.force;
|
|
|
|
if (!source.force
|
|
&& m_lastSemanticInfo.revision == source.revision
|
|
&& m_lastSemanticInfo.doc
|
|
&& m_lastSemanticInfo.doc->translationUnit()->ast()
|
|
&& m_lastSemanticInfo.doc->fileName() == source.fileName) {
|
|
semanticInfo.snapshot = m_lastSemanticInfo.snapshot; // ### TODO: use the new snapshot.
|
|
semanticInfo.doc = m_lastSemanticInfo.doc;
|
|
}
|
|
}
|
|
|
|
if (semanticInfo.doc.isNull()) {
|
|
semanticInfo.snapshot = source.snapshot;
|
|
if (source.snapshot.contains(source.fileName)) {
|
|
Document::Ptr doc = source.snapshot.preprocessedDocument(source.code, source.fileName);
|
|
if (processor)
|
|
doc->control()->setTopLevelDeclarationProcessor(processor);
|
|
doc->check();
|
|
semanticInfo.doc = doc;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (semanticInfo.doc) {
|
|
TranslationUnit *translationUnit = semanticInfo.doc->translationUnit();
|
|
AST * ast = translationUnit->ast();
|
|
|
|
FunctionDefinitionUnderCursor functionDefinitionUnderCursor(semanticInfo.doc->translationUnit());
|
|
DeclarationAST *currentFunctionDefinition = functionDefinitionUnderCursor(ast, source.line, source.column);
|
|
|
|
const LocalSymbols useTable(semanticInfo.doc, currentFunctionDefinition);
|
|
semanticInfo.revision = source.revision;
|
|
semanticInfo.localUses = useTable.uses;
|
|
}
|
|
|
|
{
|
|
QMutexLocker locker(&m_lastSemanticInfoLock);
|
|
m_lastSemanticInfo = semanticInfo;
|
|
}
|
|
|
|
if (emitSignalWhenFinished)
|
|
emit semanticInfoUpdated(semanticInfo);
|
|
}
|
|
|
|
void CppEditorSupport::recalculateSemanticInfoDetached_helper(QFutureInterface<void> &future, SemanticInfo::Source source)
|
|
{
|
|
class TLDProc: public TopLevelDeclarationProcessor
|
|
{
|
|
QFutureInterface<void> m_theFuture;
|
|
|
|
public:
|
|
TLDProc(QFutureInterface<void> &aFuture): m_theFuture(aFuture) {}
|
|
virtual ~TLDProc() {}
|
|
virtual bool processDeclaration(DeclarationAST *ast) {
|
|
Q_UNUSED(ast);
|
|
return m_theFuture.isCanceled();
|
|
}
|
|
};
|
|
|
|
TLDProc tldProc(future);
|
|
recalculateSemanticInfoNow(source, true, &tldProc);
|
|
}
|
|
|
|
void CppEditorSupport::onMimeTypeChanged()
|
|
{
|
|
m_highlighter.cancel();
|
|
m_highlighter.waitForFinished();
|
|
|
|
m_highlightingSupport.reset(m_modelManager->highlightingSupport(m_textEditor));
|
|
|
|
disconnect(this, SIGNAL(semanticInfoUpdated(CppTools::SemanticInfo)),
|
|
this, SLOT(startHighlighting()));
|
|
if (m_highlightingSupport && m_highlightingSupport->requiresSemanticInfo())
|
|
connect(this, SIGNAL(semanticInfoUpdated(CppTools::SemanticInfo)),
|
|
this, SLOT(startHighlighting()));
|
|
|
|
m_completionAssistProvider = m_modelManager->completionAssistProvider(m_textEditor);
|
|
|
|
updateDocumentNow();
|
|
}
|
|
|
|
void CppEditorSupport::onAboutToReload()
|
|
{
|
|
QTC_CHECK(!m_fileIsBeingReloaded);
|
|
m_fileIsBeingReloaded = true;
|
|
}
|
|
|
|
void CppEditorSupport::onReloadFinished()
|
|
{
|
|
QTC_CHECK(m_fileIsBeingReloaded);
|
|
m_fileIsBeingReloaded = false;
|
|
updateDocument();
|
|
}
|