1 files changed, 107 insertions, 0 deletions
diff --git a/sources/shiboken6/ApiExtractor/codesnip.h b/sources/shiboken6/ApiExtractor/codesnip.h
new file mode 100644
index 000000000..86834a1db
--- /dev/null
+++ b/sources/shiboken6/ApiExtractor/codesnip.h
@@ -0,0 +1,107 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#ifndef CODESNIP_H
+#define CODESNIP_H
+
+#include "codesniphelpers.h"
+#include "typesystem_enums.h"
+
+#include <QtCore/QList>
+#include <QtCore/QHash>
+#include <QtCore/QString>
+
+#include <memory>
+
+class TemplateInstance
+{
+public:
+    explicit TemplateInstance(const QString &name) : m_name(name) {}
+
+    void addReplaceRule(const QString &name, const QString &value)
+    {
+        replaceRules[name] = value;
+    }
+
+    QString expandCode() const;
+
+    QString name() const
+    {
+        return m_name;
+    }
+
+private:
+    const QString m_name;
+    QHash<QString, QString> replaceRules;
+};
+
+using TemplateInstancePtr = std::shared_ptr<TemplateInstance>;
+
+class CodeSnipFragment
+{
+public:
+    CodeSnipFragment() = default;
+    explicit CodeSnipFragment(const QString &code) : m_code(code) {}
+    explicit CodeSnipFragment(const TemplateInstancePtr &instance) : m_instance(instance) {}
+
+    bool isEmpty() const { return m_code.isEmpty() && !m_instance; }
+
+    QString code() const;
+
+    TemplateInstancePtr instance() const { return m_instance; }
+
+private:
+    QString m_code;
+    std::shared_ptr<TemplateInstance> m_instance;
+};
+
+class CodeSnipAbstract : public CodeSnipHelpers
+{
+public:
+    QString code() const;
+
+    void addCode(const QString &code);
+    void addCode(QStringView code) { addCode(code.toString()); }
+
+    void addTemplateInstance(const TemplateInstancePtr &ti)
+    {
+        codeList.append(CodeSnipFragment(ti));
+    }
+
+    bool isEmpty() const { return codeList.isEmpty(); }
+    void purgeEmptyFragments();
+
+    QList<CodeSnipFragment> codeList;
+
+    static QRegularExpression placeHolderRegex(int index);
+};
+
+class TemplateEntry : public CodeSnipAbstract
+{
+public:
+    explicit TemplateEntry(const QString &name) : m_name(name) {}
+
+    QString name() const
+    {
+        return m_name;
+    }
+
+private:
+    QString m_name;
+};
+
+class CodeSnip : public CodeSnipAbstract
+{
+public:
+    CodeSnip() = default;
+    explicit CodeSnip(TypeSystem::Language lang) : language(lang) {}
+
+    TypeSystem::Language language = TypeSystem::TargetLangCode;
+    TypeSystem::CodeSnipPosition position = TypeSystem::CodeSnipPositionAny;
+};
+
+/// Purge empty fragments and snippets caused by new line characters in
+/// conjunction with <insert-template>.
+void purgeEmptyCodeSnips(QList<CodeSnip> *list);
+
+#endif // CODESNIP_H