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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* Term context stack. |
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*/ |
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#include "expr/term_context_stack.h" |
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#include "expr/term_context.h" |
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namespace cvc5 { |
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TCtxStack::TCtxStack(const TermContext* tctx) : d_tctx(tctx) {} |
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void TCtxStack::pushInitial(Node t) |
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{ |
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Assert(d_stack.empty()); |
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d_stack.push_back(std::pair<Node, uint32_t>(t, d_tctx->initialValue())); |
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} |
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void TCtxStack::pushChildren(Node t, uint32_t tval) |
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{ |
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for (size_t i = 0, nchild = t.getNumChildren(); i < nchild; i++) |
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{ |
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pushChild(t, tval, i); |
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} |
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} |
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void TCtxStack::pushChild(Node t, uint32_t tval, size_t index) |
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{ |
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Assert(index < t.getNumChildren()); |
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Trace("tctx-debug") << "TCtxStack::pushChild: computing " << t << "[" << index |
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<< "] / " << tval << std::endl; |
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uint32_t tcval = d_tctx->computeValue(t, tval, index); |
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Trace("tctx-debug") << "TCtxStack::pushChild: returned " << t << "[" << index |
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<< "] / " << tval << " ---> " << tcval << std::endl; |
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d_stack.push_back(std::pair<Node, uint32_t>(t[index], tcval)); |
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} |
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void TCtxStack::pushOp(Node t, uint32_t tval) |
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{ |
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Assert(t.hasOperator()); |
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uint32_t toval = d_tctx->computeValueOp(t, tval); |
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d_stack.push_back(std::pair<Node, uint32_t>(t.getOperator(), toval)); |
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} |
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void TCtxStack::push(Node t, uint32_t tval) |
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{ |
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d_stack.push_back(std::pair<Node, uint32_t>(t, tval)); |
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} |
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void TCtxStack::pop() { d_stack.pop_back(); } |
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void TCtxStack::clear() { d_stack.clear(); } |
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size_t TCtxStack::size() const { return d_stack.size(); } |
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bool TCtxStack::empty() const { return d_stack.empty(); } |
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std::pair<Node, uint32_t> TCtxStack::getCurrent() const |
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{ |
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return d_stack.back(); |
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} |
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TCtxNode TCtxStack::getCurrentNode() const |
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{ |
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std::pair<Node, uint32_t> curr = TCtxStack::getCurrent(); |
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return TCtxNode(curr.first, curr.second, d_tctx); |
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} |
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} // namespace cvc5 |