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| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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| ** Alternatively, this file may be used under the terms of the GNU |
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| |
| // |
| // 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. |
| |
| #ifndef Patternist_SourceLocationReflection_H |
| #define Patternist_SourceLocationReflection_H |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QString; |
| |
| namespace QPatternist |
| { |
| /** |
| * @short Base class for all instances that represents something |
| * at a certain location. |
| * |
| * SourceLocationReflection does not provide the source location itself, |
| * the address to an instance is the mark for it, that in turn can be used |
| * for looking up the source location where that mapping is provided. |
| * |
| * However, this SourceLocationReflection is not itself the mark. The real |
| * mark is retrieved by calling actualReflection(). This mechanism |
| * allows a SourceLocationReflection sub-class to delegate, or be an alias, |
| * for another source location mark. |
| * |
| * If sourceLocation() returns a non-null object, it will be used instead |
| * of looking up via actualReflection(). |
| * |
| * @author Frans Englich <frans.englich@nokia.com> |
| * @ingroup Patternist_expressions |
| */ |
| class Q_AUTOTEST_EXPORT SourceLocationReflection |
| { |
| public: |
| inline SourceLocationReflection() |
| { |
| } |
| |
| virtual ~SourceLocationReflection() |
| { |
| } |
| |
| virtual const SourceLocationReflection *actualReflection() const = 0; |
| |
| /** |
| * A description of what represents the source code location, for |
| * human consumption. Must be translated, as appropriate. |
| */ |
| virtual QString description() const |
| { |
| return QString(); |
| } |
| |
| virtual QSourceLocation sourceLocation() const; |
| |
| private: |
| Q_DISABLE_COPY(SourceLocationReflection) |
| }; |
| |
| class DelegatingSourceLocationReflection : public SourceLocationReflection |
| { |
| public: |
| inline DelegatingSourceLocationReflection(const SourceLocationReflection *const r) : m_r(r) |
| { |
| Q_ASSERT(r); |
| } |
| |
| virtual const SourceLocationReflection *actualReflection() const; |
| virtual QString description() const; |
| |
| private: |
| const SourceLocationReflection *const m_r; |
| }; |
| |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif |