1 files changed, 144 insertions, 0 deletions
diff --git a/sources/shiboken2/ApiExtractor/parser/rpp/pp-environment.h b/sources/shiboken2/ApiExtractor/parser/rpp/pp-environment.h
new file mode 100644
index 000000000..23f22e483
--- /dev/null
+++ b/sources/shiboken2/ApiExtractor/parser/rpp/pp-environment.h
@@ -0,0 +1,144 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of PySide2.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PP_ENVIRONMENT_H
+#define PP_ENVIRONMENT_H
+
+#include <vector>
+#include <string>
+#include <cstring>
+#include "pp-macro.h"
+
+namespace rpp
+{
+
+class pp_environment
+{
+public:
+    typedef std::vector<pp_macro*>::const_iterator const_iterator;
+
+public:
+    pp_environment():
+            current_line(0),
+            _M_hash_size(4093) {
+        _M_base = (pp_macro **) memset(new pp_macro* [_M_hash_size], 0, _M_hash_size * sizeof(pp_macro*));
+    }
+
+    ~pp_environment() {
+        for (std::size_t i = 0; i < _M_macros.size(); ++i)
+            delete _M_macros [i];
+
+        delete [] _M_base;
+    }
+
+    const_iterator first_macro() const {
+        return _M_macros.begin();
+    }
+    const_iterator last_macro() const {
+        return _M_macros.end();
+    }
+
+    inline void bind(pp_fast_string const *__name, pp_macro const &__macro) {
+        std::size_t h = hash_code(*__name) % _M_hash_size;
+        pp_macro *m = new pp_macro(__macro);
+        m->name = __name;
+        m->next = _M_base [h];
+        m->hash_code = h;
+        _M_base [h] = m;
+
+        _M_macros.push_back(m);
+
+        if (_M_macros.size() == _M_hash_size)
+            rehash();
+    }
+
+    inline void unbind(pp_fast_string const *__name) {
+        if (pp_macro *m = resolve(__name))
+            m->hidden = true;
+    }
+
+    inline void unbind(char const *__s, std::size_t __size) {
+        pp_fast_string __tmp(__s, __size);
+        unbind(&__tmp);
+    }
+
+    inline pp_macro *resolve(pp_fast_string const *__name) const {
+        std::size_t h = hash_code(*__name) % _M_hash_size;
+        pp_macro *it = _M_base [h];
+
+        while (it && it->name && it->hash_code == h && (*it->name != *__name || it->hidden))
+            it = it->next;
+
+        return it;
+    }
+
+    inline pp_macro *resolve(char const *__data, std::size_t __size) const {
+        pp_fast_string const __tmp(__data, __size);
+        return resolve(&__tmp);
+    }
+
+    std::string current_file;
+    int current_line;
+
+private:
+    inline std::size_t hash_code(pp_fast_string const &s) const {
+        std::size_t hash_value = 0;
+
+        for (std::size_t i = 0; i < s.size(); ++i)
+            hash_value = (hash_value << 5) - hash_value + s.at(i);
+
+        return hash_value;
+    }
+
+    void rehash() {
+        delete[] _M_base;
+
+        _M_hash_size <<= 1;
+
+        _M_base = (pp_macro **) memset(new pp_macro* [_M_hash_size], 0, _M_hash_size * sizeof(pp_macro*));
+        for (std::size_t index = 0; index < _M_macros.size(); ++index) {
+            pp_macro *elt = _M_macros [index];
+            std::size_t h = hash_code(*elt->name) % _M_hash_size;
+            elt->next = _M_base [h];
+            elt->hash_code = h;
+            _M_base [h] = elt;
+        }
+    }
+
+private:
+    std::vector<pp_macro*> _M_macros;
+    pp_macro **_M_base;
+    std::size_t _M_hash_size;
+};
+
+} // namespace rpp
+
+#endif // PP_ENVIRONMENT_H
+
+// kate: space-indent on; indent-width 2; replace-tabs on;