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/********************* */
/*! \file term_context_stack.cpp
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds
** This file is part of the CVC4 project.
** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
** in the top-level source directory and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Term context stack
**/
#include "expr/term_context_stack.h"
#include "expr/term_context.h"
namespace CVC5 {
TCtxStack::TCtxStack(const TermContext* tctx) : d_tctx(tctx) {}
void TCtxStack::pushInitial(Node t)
{
Assert(d_stack.empty());
d_stack.push_back(std::pair<Node, uint32_t>(t, d_tctx->initialValue()));
}
void TCtxStack::pushChildren(Node t, uint32_t tval)
{
for (size_t i = 0, nchild = t.getNumChildren(); i < nchild; i++)
{
pushChild(t, tval, i);
}
}
void TCtxStack::pushChild(Node t, uint32_t tval, size_t index)
{
Assert(index < t.getNumChildren());
Trace("tctx-debug") << "TCtxStack::pushChild: computing " << t << "[" << index
<< "] / " << tval << std::endl;
uint32_t tcval = d_tctx->computeValue(t, tval, index);
Trace("tctx-debug") << "TCtxStack::pushChild: returned " << t << "[" << index
<< "] / " << tval << " ---> " << tcval << std::endl;
d_stack.push_back(std::pair<Node, uint32_t>(t[index], tcval));
}
void TCtxStack::pushOp(Node t, uint32_t tval)
{
Assert(t.hasOperator());
uint32_t toval = d_tctx->computeValueOp(t, tval);
d_stack.push_back(std::pair<Node, uint32_t>(t.getOperator(), toval));
}
void TCtxStack::push(Node t, uint32_t tval)
{
d_stack.push_back(std::pair<Node, uint32_t>(t, tval));
}
void TCtxStack::pop() { d_stack.pop_back(); }
void TCtxStack::clear() { d_stack.clear(); }
size_t TCtxStack::size() const { return d_stack.size(); }
bool TCtxStack::empty() const { return d_stack.empty(); }
std::pair<Node, uint32_t> TCtxStack::getCurrent() const
{
return d_stack.back();
}
TCtxNode TCtxStack::getCurrentNode() const
{
std::pair<Node, uint32_t> curr = TCtxStack::getCurrent();
return TCtxNode(curr.first, curr.second, d_tctx);
}
} // namespace CVC5
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