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/******************************************************************************
* Top contributors (to current version):
* Andrew Reynolds, Morgan Deters, Tim King
*
* This file is part of the cvc5 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.
* ****************************************************************************
*
* Implementation of trigger trie class.
*/
#include "theory/quantifiers/ematching/trigger_trie.h"
namespace cvc5 {
namespace theory {
namespace quantifiers {
namespace inst {
TriggerTrie::TriggerTrie() {}
TriggerTrie::~TriggerTrie()
{
for (size_t i = 0, ntriggers = d_tr.size(); i < ntriggers; i++)
{
delete d_tr[i];
}
}
inst::Trigger* TriggerTrie::getTrigger(std::vector<Node>& nodes)
{
std::vector<Node> temp;
temp.insert(temp.begin(), nodes.begin(), nodes.end());
std::sort(temp.begin(), temp.end());
TriggerTrie* tt = this;
for (const Node& n : temp)
{
std::map<TNode, TriggerTrie>::iterator itt = tt->d_children.find(n);
if (itt == tt->d_children.end())
{
return nullptr;
}
else
{
tt = &(itt->second);
}
}
return tt->d_tr.empty() ? nullptr : tt->d_tr[0];
}
void TriggerTrie::addTrigger(std::vector<Node>& nodes, inst::Trigger* t)
{
std::vector<Node> temp(nodes.begin(), nodes.end());
std::sort(temp.begin(), temp.end());
TriggerTrie* tt = this;
for (const Node& n : temp)
{
std::map<TNode, TriggerTrie>::iterator itt = tt->d_children.find(n);
if (itt == tt->d_children.end())
{
TriggerTrie* ttn = &tt->d_children[n];
tt = ttn;
}
else
{
tt = &(itt->second);
}
}
tt->d_tr.push_back(t);
}
} // namespace inst
} // namespace quantifiers
} // namespace theory
} // namespace cvc5
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