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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLLSCOMPLETIONCONTEXTSTRINGS_H
#define QQMLLSCOMPLETIONCONTEXTSTRINGS_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qtconfigmacros.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringview.h>
QT_BEGIN_NAMESPACE
// finds the filter string, the base (for fully qualified accesses) and the whole string
// just before pos in code
struct CompletionContextStrings
{
CompletionContextStrings(QString code, qsizetype pos);
public:
// line up until pos
QStringView preLine() const
{
return QStringView(m_code).mid(m_lineStart, m_pos - m_lineStart);
}
// the part used to filter the completion (normally actual filtering is left to the client)
QStringView filterChars() const
{
return QStringView(m_code).mid(m_filterStart, m_pos - m_filterStart);
}
// the base part (qualified access)
QStringView base() const
{
return QStringView(m_code).mid(m_baseStart, m_filterStart - m_baseStart);
}
// if we are at line start
bool atLineStart() const { return m_atLineStart; }
qsizetype offset() const { return m_pos; }
private:
QString m_code; // the current code
qsizetype m_pos = {}; // current position of the cursor
qsizetype m_filterStart = {}; // start of the characters that are used to filter the suggestions
qsizetype m_lineStart = {}; // start of the current line
qsizetype m_baseStart = {}; // start of the dotted expression that ends at the cursor position
bool m_atLineStart = {}; // if there are only spaces before base
};
QT_END_NAMESPACE
#endif // QQMLLSCOMPLETIONCONTEXTSTRINGS_H
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