Merge pull request #10502 from ydb-platform/mergelibs-241016-1210

Library import 241016-1210

1 files changed, 167 insertions, 0 deletions

diff --git a/contrib/libs/jinja2cpp/src/value_helpers.h b/contrib/libs/jinja2cpp/src/value_helpers.h
new file mode 100644
index 0000000000..d5ac829fc4
--- /dev/null
+++ b/contrib/libs/jinja2cpp/src/value_helpers.h
@@ -0,0 +1,167 @@
+#ifndef JINJA2CPP_SRC_VALUE_HELPERS_H
+#define JINJA2CPP_SRC_VALUE_HELPERS_H
+
+#include <jinja2cpp/value.h>
+
+#include <boost/iterator/iterator_facade.hpp>
+
+namespace jinja2
+{
+#if 0
+class GenericListIterator
+        : public boost::iterator_facade<
+            GenericListIterator,
+            const InternalValue,
+            boost::random_access_traversal_tag>
+{
+public:
+    GenericListIterator()
+        : m_current(0)
+        , m_list(nullptr)
+    {}
+
+    explicit GenericListIterator(GenericList& list)
+        : m_current(0)
+        , m_list(&list)
+    {}
+
+private:
+    friend class boost::iterator_core_access;
+
+    void increment()
+    {
+        ++ m_current;
+        m_valueIdx = m_current;
+        m_currentVal = m_current == m_list->GetSize() ? InternalValue() : m_list->GetValueByIndex(static_cast<int64_t>(m_current));
+    }
+
+    int distance_to(const GenericListIterator& other) const
+    {
+        if (m_list == nullptr)
+            return other.m_list == nullptr ? 0 : -other.distance_to(*this);
+
+        if (other.m_list == nullptr)
+            return m_list->GetSize() - m_current;
+
+        return other.m_current - m_current;
+    }
+
+    void advance(int distance)
+    {
+        m_current += distance;
+        if (distance != 0)
+        {
+            m_valueIdx = m_current;
+            m_currentVal = m_current == m_list->GetSize() ? InternalValue() : m_list->GetValueByIndex(static_cast<int64_t>(m_current));
+
+        }
+    }
+
+    bool equal(const GenericListIterator& other) const
+    {
+        if (m_list == nullptr)
+            return other.m_list == nullptr ? true : other.equal(*this);
+
+        if (other.m_list == nullptr)
+            return m_current == m_list->GetSize();
+
+        return this->m_list == other.m_list && this->m_current == other.m_current;
+    }
+
+    const InternalValue& dereference() const
+    {
+        if (m_current != m_valueIdx)
+            m_currentVal = m_current == m_list->GetSize() ? InternalValue() : m_list->GetValueByIndex(static_cast<int64_t>(m_current));
+        return m_currentVal;
+    }
+
+    int64_t m_current = 0;
+    mutable int64_t m_valueIdx = -1;
+    mutable InternalValue m_currentVal;
+    GenericList* m_list;
+};
+
+class ConstGenericListIterator
+        : public boost::iterator_facade<
+            GenericListIterator,
+            const InternalValue,
+            boost::random_access_traversal_tag>
+{
+public:
+    ConstGenericListIterator()
+        : m_current(0)
+        , m_list(nullptr)
+    {}
+
+    explicit ConstGenericListIterator(const GenericList& list)
+        : m_current(0)
+        , m_list(&list)
+    {}
+
+private:
+    friend class boost::iterator_core_access;
+
+    void increment()
+    {
+        ++ m_current;
+    }
+
+    int distance_to(const ConstGenericListIterator& other) const
+    {
+        if (m_list == nullptr)
+            return other.m_list == nullptr ? 0 : -other.distance_to(*this);
+
+        if (other.m_list == nullptr)
+            return m_list->GetSize() - m_current;
+
+        return other.m_current - m_current;
+    }
+
+    void advance(int distance)
+    {
+        m_current += distance;
+    }
+
+    bool equal(const ConstGenericListIterator& other) const
+    {
+        if (m_list == nullptr)
+            return other.m_list == nullptr ? true : other.equal(*this);
+
+        if (other.m_list == nullptr)
+            return m_current == m_list->GetSize();
+
+        return this->m_list == other.m_list && this->m_current == other.m_current;
+    }
+
+    const InternalValue& dereference() const
+    {
+        return m_list->GetValueByIndex(static_cast<int64_t>(m_current));
+    }
+
+    size_t m_current;
+    const GenericList* m_list;
+};
+
+inline auto begin(GenericList& list)
+{
+    return GenericListIterator(list);
+}
+
+inline auto end(GenericList& list)
+{
+    return GenericListIterator();
+}
+
+inline auto begin(const GenericList& list)
+{
+    return ConstGenericListIterator(list);
+}
+
+inline auto end(const GenericList& list)
+{
+    return ConstGenericListIterator();
+}
+#endif
+} // namespace jinja2
+
+#endif // JINJA2CPP_SRC_VALUE_HELPERS_H