forked from qt-creator/qt-creator
d63624afe0
Change-Id: Id97ca27fa909979573efca12dc0cd14b28eacd17 Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
96 lines
3.6 KiB
C++
96 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://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 and
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** conditions see http://www.qt.io/terms-conditions. For further information
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** use the contact form at http://www.qt.io/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 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** 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, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company 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 "analyzerutils.h"
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#include "analyzerconstants.h"
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#include <cpptools/cppmodelmanager.h>
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#include <texteditor/texteditor.h>
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#include <texteditor/textdocument.h>
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#include <utils/qtcassert.h>
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#include <cplusplus/ExpressionUnderCursor.h>
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#include <cplusplus/TypeOfExpression.h>
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#include <cpptools/cppmodelmanager.h>
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#include <QTextCursor>
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using namespace Analyzer;
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using namespace Core;
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static void moveCursorToEndOfName(QTextCursor *tc)
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{
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QTextDocument *doc = tc->document();
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if (!doc)
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return;
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QChar ch = doc->characterAt(tc->position());
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while (ch.isLetterOrNumber() || ch == QLatin1Char('_')) {
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tc->movePosition(QTextCursor::NextCharacter);
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ch = doc->characterAt(tc->position());
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}
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}
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// TODO: Can this be improved? This code is ripped from CppEditor, especially CppElementEvaluater
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// We cannot depend on this since CppEditor plugin code is internal and requires building the implementation files ourselves
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CPlusPlus::Symbol *AnalyzerUtils::findSymbolUnderCursor()
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{
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TextEditor::TextEditorWidget *widget = TextEditor::TextEditorWidget::currentTextEditorWidget();
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if (!widget)
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return 0;
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QTextCursor tc = widget->textCursor();
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int line = 0;
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int column = 0;
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const int pos = tc.position();
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widget->convertPosition(pos, &line, &column);
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const CPlusPlus::Snapshot &snapshot = CppTools::CppModelManager::instance()->snapshot();
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CPlusPlus::Document::Ptr doc = snapshot.document(widget->textDocument()->filePath());
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QTC_ASSERT(doc, return 0);
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// fetch the expression's code
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CPlusPlus::ExpressionUnderCursor expressionUnderCursor(doc->languageFeatures());
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moveCursorToEndOfName(&tc);
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const QString &expression = expressionUnderCursor(tc);
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CPlusPlus::Scope *scope = doc->scopeAt(line, column);
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CPlusPlus::TypeOfExpression typeOfExpression;
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typeOfExpression.init(doc, snapshot);
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const QList<CPlusPlus::LookupItem> &lookupItems = typeOfExpression(expression.toUtf8(), scope);
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if (lookupItems.isEmpty())
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return 0;
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const CPlusPlus::LookupItem &lookupItem = lookupItems.first(); // ### TODO: select best candidate.
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return lookupItem.declaration();
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}
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