1 files changed, 85 insertions, 0 deletions
diff --git a/idlc/source/aststack.cxx b/idlc/source/aststack.cxx
new file mode 100644
index 000000000..6e01cdabf
--- /dev/null
+++ b/idlc/source/aststack.cxx
@@ -0,0 +1,85 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <rtl/alloc.h>
+#include <aststack.hxx>
+#include <astscope.hxx>
+
+AstStack::AstStack()
+{
+}
+
+AstStack::~AstStack()
+{
+    for (AstScope* p : m_stack)
+        delete p;
+}
+
+
+AstScope* AstStack::top()
+{
+    if (m_stack.empty())
+        return nullptr;
+    return m_stack.back();
+}
+
+AstScope* AstStack::bottom()
+{
+    if (m_stack.empty())
+        return nullptr;
+    return m_stack.front();
+}
+
+AstScope* AstStack::nextToTop()
+{
+    if (m_stack.size() < 2)
+        return nullptr;
+
+    return m_stack[m_stack.size() - 2];
+}
+
+AstScope* AstStack::topNonNull()
+{
+    for (sal_uInt32 i = m_stack.size(); i > 0; i--)
+    {
+        if ( m_stack[i - 1] )
+            return m_stack[i - 1];
+    }
+    return nullptr;
+}
+
+AstStack* AstStack::push(AstScope* pScope)
+{
+    m_stack.push_back(pScope);
+    return this;
+}
+
+void AstStack::pop()
+{
+    if (m_stack.empty())
+        return;
+    m_stack.pop_back();
+}
+
+void AstStack::clear()
+{
+   m_stack.clear();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */