2024-03-19 17:45:12 +08:00

82 lines
3.8 KiB
C++

/**************************************************************************************/
/* */
/* Visualization Library */
/* http://visualizationlibrary.org */
/* */
/* Copyright (c) 2005-2020, Michele Bosi */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or without modification, */
/* are permitted provided that the following conditions are met: */
/* */
/* - Redistributions of source code must retain the above copyright notice, this */
/* list of conditions and the following disclaimer. */
/* */
/* - Redistributions in binary form must reproduce the above copyright notice, this */
/* list of conditions and the following disclaimer in the documentation and/or */
/* other materials provided with the distribution. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND */
/* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */
/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR */
/* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */
/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/**************************************************************************************/
#ifndef VLXLinker_INCLUDE_ONCE
#define VLXLinker_INCLUDE_ONCE
#include <vlX/VisitorLinker.hpp>
#include <vlX/VisitorLinkMapper.hpp>
namespace vlX
{
/** Links several VLX hierachies also resolving IDs across them. */
class Linker
{
public:
void add(VLXTaggedValue* module)
{
mModules.push_back(module);
}
bool link()
{
std::map< std::string, vl::ref<VLXStructure> > link_map;
// map all the IDs to the appropriate VLXStructures
VisitorLinkMapper link_mapper(&link_map);
for(size_t i=0; i<mModules.size(); ++i)
mModules[i]->acceptVisitor(&link_mapper);
if (link_mapper.error())
return false;
// link all the IDs to the associated VLXStructure
VisitorLinker linker(&link_map);
for(size_t i=0; i<mModules.size(); ++i)
mModules[i]->acceptVisitor(&linker);
if (linker.error())
return false;
return true;
}
std::vector< vl::ref<VLXTaggedValue> >& modules() { return mModules; }
const std::vector< vl::ref<VLXTaggedValue> >& modules() const { return mModules; }
public:
std::vector< vl::ref<VLXTaggedValue> > mModules;
};
}
#endif