forked from qt-creator/qt-creator
c6358e5d38
In most cases we need to work with the utf16 indices. Only in cppfindreferences the byte interface is still needed since there we read in files and work on a QByteArray to save memory. Change-Id: I6ef6a93fc1875a8c9a305c075d51a9ca034c41bb Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
622 lines
21 KiB
C++
622 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_lastHighlightOnCompleteSemanticInfo(true)
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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()
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{
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m_futureSemanticInfo.cancel();
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return recalculateSemanticInfoNow(currentSource(false), /*emitSignalWhenFinished=*/ false);
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}
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Document::Ptr CppEditorSupport::lastSemanticInfoDocument() const
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{
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return semanticInfo().doc;
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}
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void CppEditorSupport::recalculateSemanticInfoDetached(ForceReason forceReason)
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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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const bool force = forceReason != NoForce;
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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(forceReason);
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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 = snapshotUpdater_internal();
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if (!updater || updater->fileInEditor() != fileName()) {
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updater = QSharedPointer<SnapshotUpdater>(new SnapshotUpdater(fileName()));
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setSnapshotUpdater_internal(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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CppModelManagerInterface::WorkingCopy workingCopy)
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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(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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CppModelManager::instance()->workingCopy());
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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.utf16charsBegin(), block.utf16charsEnd()));
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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 if necessary
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if (!m_initialized || (m_textEditor->widget()->isVisible() && !isSemanticInfoValid())) {
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m_initialized = true;
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recalculateSemanticInfoDetached(ForceDueToInvalidSemanticInfo);
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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(ForceReason forceReason)
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{
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if (!m_highlightingSupport)
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return;
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if (m_highlightingSupport->requiresSemanticInfo()) {
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const SemanticInfo info = semanticInfo();
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if (info.doc.isNull())
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return;
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const bool forced = info.forced || !m_lastHighlightOnCompleteSemanticInfo;
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if (!forced && m_lastHighlightRevision == info.revision)
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return;
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m_highlighter.cancel();
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m_highlighter = m_highlightingSupport->highlightingFuture(info.doc, info.snapshot);
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m_lastHighlightRevision = info.revision;
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m_lastHighlightOnCompleteSemanticInfo = info.complete;
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emit highlighterStarted(&m_highlighter, m_lastHighlightRevision);
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} else {
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const unsigned revision = editorRevision();
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if (forceReason != ForceDueEditorRequest && m_lastHighlightRevision == revision)
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return;
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m_highlighter.cancel();
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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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m_lastHighlightRevision = revision;
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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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if (!lastSemanticInfoDocument())
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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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setSemanticInfo(SemanticInfo(), /*emitSignal=*/ false);
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m_lastHighlightOnCompleteSemanticInfo = true;
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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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return SemanticInfo::Source(Snapshot(), fileName(), contents(), line, column, editorRevision(),
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force);
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}
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SemanticInfo CppEditorSupport::recalculateSemanticInfoNow(const SemanticInfo::Source &source,
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bool emitSignalWhenFinished,
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FuturizedTopLevelDeclarationProcessor *processor)
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{
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const SemanticInfo lastSemanticInfo = semanticInfo();
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SemanticInfo newSemanticInfo;
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newSemanticInfo.forced = source.force;
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newSemanticInfo.revision = source.revision;
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// Try to reuse as much as possible from the last semantic info
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if (!source.force
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&& lastSemanticInfo.complete
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&& lastSemanticInfo.revision == source.revision
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&& lastSemanticInfo.doc
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&& lastSemanticInfo.doc->translationUnit()->ast()
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|
&& lastSemanticInfo.doc->fileName() == source.fileName) {
|
|
newSemanticInfo.snapshot = lastSemanticInfo.snapshot; // ### TODO: use the new snapshot.
|
|
newSemanticInfo.doc = lastSemanticInfo.doc;
|
|
|
|
// Otherwise reprocess document
|
|
} else {
|
|
const QSharedPointer<SnapshotUpdater> snapshotUpdater = snapshotUpdater_internal();
|
|
QTC_ASSERT(snapshotUpdater, return newSemanticInfo);
|
|
newSemanticInfo.snapshot = snapshotUpdater->snapshot();
|
|
QTC_ASSERT(newSemanticInfo.snapshot.contains(source.fileName), return newSemanticInfo);
|
|
Document::Ptr doc = newSemanticInfo.snapshot.preprocessedDocument(source.code,
|
|
source.fileName);
|
|
if (processor)
|
|
doc->control()->setTopLevelDeclarationProcessor(processor);
|
|
doc->check();
|
|
if (processor && processor->isCanceled())
|
|
newSemanticInfo.complete = false;
|
|
newSemanticInfo.doc = doc;
|
|
}
|
|
|
|
// Update local uses for the document
|
|
TranslationUnit *translationUnit = newSemanticInfo.doc->translationUnit();
|
|
AST *ast = translationUnit->ast();
|
|
FunctionDefinitionUnderCursor functionDefinitionUnderCursor(newSemanticInfo.doc->translationUnit());
|
|
const LocalSymbols useTable(newSemanticInfo.doc,
|
|
functionDefinitionUnderCursor(ast, source.line, source.column));
|
|
newSemanticInfo.localUses = useTable.uses;
|
|
|
|
// Update semantic info
|
|
setSemanticInfo(newSemanticInfo, emitSignalWhenFinished);
|
|
|
|
return newSemanticInfo;
|
|
}
|
|
|
|
void CppEditorSupport::recalculateSemanticInfoDetached_helper(QFutureInterface<void> &future, SemanticInfo::Source source)
|
|
{
|
|
FuturizedTopLevelDeclarationProcessor processor(future);
|
|
recalculateSemanticInfoNow(source, true, &processor);
|
|
}
|
|
|
|
bool CppEditorSupport::isSemanticInfoValid() const
|
|
{
|
|
const Document::Ptr document = lastSemanticInfoDocument();
|
|
return document
|
|
&& document->translationUnit()->ast()
|
|
&& document->fileName() == fileName();
|
|
}
|
|
|
|
SemanticInfo CppEditorSupport::semanticInfo() const
|
|
{
|
|
QMutexLocker locker(&m_lastSemanticInfoLock);
|
|
return m_lastSemanticInfo;
|
|
}
|
|
|
|
void CppEditorSupport::setSemanticInfo(const SemanticInfo &semanticInfo, bool emitSignal)
|
|
{
|
|
{
|
|
QMutexLocker locker(&m_lastSemanticInfoLock);
|
|
m_lastSemanticInfo = semanticInfo;
|
|
}
|
|
if (emitSignal)
|
|
emit semanticInfoUpdated(semanticInfo);
|
|
}
|
|
|
|
QSharedPointer<SnapshotUpdater> CppEditorSupport::snapshotUpdater_internal() const
|
|
{
|
|
QMutexLocker locker(&m_snapshotUpdaterLock);
|
|
return m_snapshotUpdater;
|
|
}
|
|
|
|
void CppEditorSupport::setSnapshotUpdater_internal(const QSharedPointer<SnapshotUpdater> &updater)
|
|
{
|
|
QMutexLocker locker(&m_snapshotUpdaterLock);
|
|
m_snapshotUpdater = updater;
|
|
}
|
|
|
|
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();
|
|
}
|