1 files changed, 154 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/shared/vtables.cxx b/bridges/source/cpp_uno/shared/vtables.cxx
new file mode 100644
index 000000000000..2779d928f24e
--- /dev/null
+++ b/bridges/source/cpp_uno/shared/vtables.cxx
@@ -0,0 +1,154 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_bridges.hxx"
+
+#include "bridges/cpp_uno/shared/vtables.hxx"
+
+#include "osl/diagnose.h"
+#include "sal/types.h"
+#include "typelib/typedescription.h"
+
+#include <algorithm>
+
+namespace
+{
+
+/**
+ *  Calculates the number of vtables associated with an interface type.
+ *
+ * <p>Multiple-inheritance C++ classes have more than one vtable.</p>
+ *
+ * @param type a non-null pointer to an interface type description
+ * @return the number of vtables associated with the given interface type
+ */
+sal_Int32 getVtableCount(typelib_InterfaceTypeDescription const * type) {
+    sal_Int32 n = 0;
+    for (sal_Int32 i = 0; i < type->nBaseTypes; ++i) {
+        n += getVtableCount(type->ppBaseTypes[i]);
+    }
+    return std::max< sal_Int32 >(n, 1);
+}
+
+/**
+ * Maps a local member index to a local function index.
+ *
+ * <p><em>Local</em> members/functions are those not inherited from any base
+ * types.  The number of <em>functions</em> is potentially larger than the
+ * number of <em>members</em>, as each read&ndash;write attribute member counts
+ * as two functions.</p>
+ *
+ * @param type a non-null pointer to an interface type description
+ * @param localMember a local member index, relative to the given interface type
+ * @return the local function index corresponding to the given local member
+ *     index, relative to the given interface type
+ */
+sal_Int32 mapLocalMemberToLocalFunction(
+    typelib_InterfaceTypeDescription * type, sal_Int32 localMember)
+{
+    typelib_typedescription_complete(
+        reinterpret_cast< typelib_TypeDescription ** >(&type));
+    sal_Int32 localMemberOffset = type->nAllMembers - type->nMembers;
+    sal_Int32 localFunctionOffset = type->nMapFunctionIndexToMemberIndex
+        - bridges::cpp_uno::shared::getLocalFunctions(type);
+    return type->pMapMemberIndexToFunctionIndex[localMemberOffset + localMember]
+        - localFunctionOffset;
+}
+
+// Since on Solaris we compile with --instances=static, getVtableSlot cannot be
+// a template function, with explicit instantiates for
+// T = typelib_InterfaceAttributeTypeDescription and
+// T = typelib_InterfaceMethodTypeDescription in this file; hence, there are two
+// overloaded versions of getVtableSlot that both delegate to this template
+// function:
+template< typename T > bridges::cpp_uno::shared::VtableSlot doGetVtableSlot(
+    T const * ifcMember)
+{
+    bridges::cpp_uno::shared::VtableSlot slot;
+    slot.offset = 0;
+    T * member = const_cast< T * >(ifcMember);
+    while (member->pBaseRef != 0) {
+        OSL_ASSERT(member->nIndex < member->pInterface->nBaseTypes);
+        for (sal_Int32 i = 0; i < member->nIndex; ++i) {
+            slot.offset += getVtableCount(member->pInterface->ppBaseTypes[i]);
+        }
+        typelib_TypeDescription * desc = 0;
+        typelib_typedescriptionreference_getDescription(
+            &desc, member->pBaseRef);
+        OSL_ASSERT(
+            desc != 0 && desc->eTypeClass == member->aBase.aBase.eTypeClass);
+        if (member != ifcMember) {
+            typelib_typedescription_release(&member->aBase.aBase);
+        }
+        member = reinterpret_cast< T * >(desc);
+    }
+    slot.index
+        = bridges::cpp_uno::shared::getPrimaryFunctions(
+            member->pInterface->pBaseTypeDescription)
+        + mapLocalMemberToLocalFunction(member->pInterface, member->nIndex);
+    if (member != ifcMember) {
+        typelib_typedescription_release(&member->aBase.aBase);
+    }
+    return slot;
+}
+
+}
+
+namespace bridges { namespace cpp_uno { namespace shared {
+
+sal_Int32 getLocalFunctions(typelib_InterfaceTypeDescription const * type) {
+    return type->nMembers == 0
+        ? 0
+        : (type->nMapFunctionIndexToMemberIndex
+           - type->pMapMemberIndexToFunctionIndex[
+               type->nAllMembers - type->nMembers]);
+}
+
+sal_Int32 getPrimaryFunctions(typelib_InterfaceTypeDescription * type) {
+    sal_Int32 n = 0;
+    for (; type != 0; type = type->pBaseTypeDescription) {
+        typelib_typedescription_complete(
+            reinterpret_cast< typelib_TypeDescription ** >(&type));
+        n += getLocalFunctions(type);
+    }
+    return n;
+}
+
+VtableSlot getVtableSlot(
+    typelib_InterfaceAttributeTypeDescription const * ifcMember)
+{
+    return doGetVtableSlot(ifcMember);
+}
+
+VtableSlot getVtableSlot(
+    typelib_InterfaceMethodTypeDescription const * ifcMember)
+{
+    return doGetVtableSlot(ifcMember);
+}
+
+} } }