| 1 | // Copyright (C) 2023 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QQMLLSCOMPLETIONCONTEXTSTRINGS_H |
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| 5 | #define QQMLLSCOMPLETIONCONTEXTSTRINGS_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtCore/qtconfigmacros.h> |
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| 19 | #include <QtCore/qstring.h> |
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| 20 | #include <QtCore/qstringview.h> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | // finds the filter string, the base (for fully qualified accesses) and the whole string |
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| 25 | // just before pos in code |
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| 26 | struct CompletionContextStrings |
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| 27 | { |
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| 28 | CompletionContextStrings(QString code, qsizetype pos); |
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| 29 | |
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| 30 | public: |
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| 31 | // line up until pos |
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| 32 | QStringView preLine() const |
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| 33 | { |
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| 34 | return QStringView(m_code).mid(pos: m_lineStart, n: m_pos - m_lineStart); |
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| 35 | } |
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| 36 | // the part used to filter the completion (normally actual filtering is left to the client) |
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| 37 | QStringView filterChars() const |
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| 38 | { |
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| 39 | return QStringView(m_code).mid(pos: m_filterStart, n: m_pos - m_filterStart); |
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| 40 | } |
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| 41 | // the base part (qualified access) |
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| 42 | QStringView base() const |
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| 43 | { |
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| 44 | return QStringView(m_code).mid(pos: m_baseStart, n: m_filterStart - m_baseStart); |
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| 45 | } |
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| 46 | // if we are at line start |
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| 47 | bool atLineStart() const { return m_atLineStart; } |
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| 48 | |
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| 49 | qsizetype offset() const { return m_pos; } |
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| 50 | |
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| 51 | private: |
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| 52 | QString m_code; // the current code |
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| 53 | qsizetype m_pos = {}; // current position of the cursor |
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| 54 | qsizetype m_filterStart = {}; // start of the characters that are used to filter the suggestions |
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| 55 | qsizetype m_lineStart = {}; // start of the current line |
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| 56 | qsizetype m_baseStart = {}; // start of the dotted expression that ends at the cursor position |
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| 57 | bool m_atLineStart = {}; // if there are only spaces before base |
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| 58 | }; |
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| 59 | |
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| 60 | QT_END_NAMESPACE |
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| 61 | |
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| 62 | #endif // QQMLLSCOMPLETIONCONTEXTSTRINGS_H |
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| 63 | |
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