forked from qt-creator/qt-creator
80a472740d
Allows to use this header without texteditor dependency. Change-Id: I706f42799c3ea42473a716fa9ef9f3cfbef6fdd4 Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
133 lines
4.1 KiB
C++
133 lines
4.1 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 "cppcanonicalsymbol.h"
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#include <cpptools/cpptoolsreuse.h>
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#include <cplusplus/ExpressionUnderCursor.h>
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#include <utils/textutils.h>
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#include <QTextCursor>
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#include <QTextDocument>
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using namespace CPlusPlus;
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namespace CppTools {
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CanonicalSymbol::CanonicalSymbol(const Document::Ptr &document,
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const Snapshot &snapshot)
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: m_document(document),
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m_snapshot(snapshot)
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{
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m_typeOfExpression.init(document, snapshot);
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m_typeOfExpression.setExpandTemplates(true);
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}
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const LookupContext &CanonicalSymbol::context() const
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{
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return m_typeOfExpression.context();
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}
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Scope *CanonicalSymbol::getScopeAndExpression(const QTextCursor &cursor, QString *code)
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{
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if (!m_document)
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return 0;
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QTextCursor tc = cursor;
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int line, column;
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Utils::Text::convertPosition(cursor.document(), tc.position(), &line, &column);
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++column; // 1-based line and 1-based column
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int pos = tc.position();
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QTextDocument *textDocument = cursor.document();
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if (!CppTools::isValidIdentifierChar(textDocument->characterAt(pos)))
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if (!(pos > 0 && CppTools::isValidIdentifierChar(textDocument->characterAt(pos - 1))))
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return 0;
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while (CppTools::isValidIdentifierChar(textDocument->characterAt(pos)))
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++pos;
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tc.setPosition(pos);
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ExpressionUnderCursor expressionUnderCursor(m_document->languageFeatures());
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*code = expressionUnderCursor(tc);
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return m_document->scopeAt(line, column);
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}
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Symbol *CanonicalSymbol::operator()(const QTextCursor &cursor)
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{
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QString code;
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if (Scope *scope = getScopeAndExpression(cursor, &code))
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return operator()(scope, code);
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return 0;
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}
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Symbol *CanonicalSymbol::operator()(Scope *scope, const QString &code)
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{
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return canonicalSymbol(scope, code, m_typeOfExpression);
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}
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Symbol *CanonicalSymbol::canonicalSymbol(Scope *scope, const QString &code,
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TypeOfExpression &typeOfExpression)
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{
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const QList<LookupItem> results =
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typeOfExpression(code.toUtf8(), scope, TypeOfExpression::Preprocess);
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for (int i = results.size() - 1; i != -1; --i) {
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const LookupItem &r = results.at(i);
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Symbol *decl = r.declaration();
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if (!(decl && decl->enclosingScope()))
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break;
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if (Class *classScope = r.declaration()->enclosingScope()->asClass()) {
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const Identifier *declId = decl->identifier();
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const Identifier *classId = classScope->identifier();
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if (classId && classId->match(declId))
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continue; // skip it, it's a ctor or a dtor.
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if (Function *funTy = r.declaration()->type()->asFunctionType()) {
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if (funTy->isVirtual())
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return r.declaration();
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}
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}
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}
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for (int i = 0; i < results.size(); ++i) {
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const LookupItem &r = results.at(i);
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if (r.declaration())
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return r.declaration();
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}
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return 0;
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}
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} // namespace CppEditor
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