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/***********************************************************************************
* Copyright (c) 2016, UT-Battelle
* 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.
* * Neither the name of the xacc nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 <COPYRIGHT HOLDER> 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.
*
* Contributors:
* Initial API and implementation - Alex McCaskey
*
**********************************************************************************/
#ifndef QUANTUM_GATE_UTILS_QUANTUMCIRCUIT_HPP_
#define QUANTUM_GATE_UTILS_QUANTUMCIRCUIT_HPP_
#include "Graph.hpp"
#include <boost/algorithm/string.hpp>
namespace xacc {
namespace quantum {
/**
* CircuitNode subclasses QCIVertex to provide the following
* parameters in the given order:
*
* Parameters: Gate, Layer (ie time sequence), Gate Vertex Id,
* Qubit Ids that the gate acts on, enabled state, vector of parameters names
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*/
class CircuitNode: public qci::common::QCIVertex<std::string, int, int,
std::vector<int>, bool, std::vector<std::string>> {
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public:
CircuitNode() :
QCIVertex() {
propertyNames[0] = "Gate";
propertyNames[1] = "Circuit Layer";
propertyNames[2] = "Gate Vertex Id";
propertyNames[3] = "Gate Acting Qubits";
propertyNames[4] = "Enabled";
propertyNames[5] = "RuntimeParameters";
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// by default all circuit nodes
// are enabled and
std::get<4>(properties) = true;
}
};
/**
* The QuantumCircuit is a subclass of Graph that provides
* its Vertex template parameter as a CircuitNode. It adds the
* ability to read QuantumCircuits from a graphviz dot file.
*/
class QuantumCircuit : virtual public qci::common::Graph<CircuitNode> {
public:
virtual void read(std::istream& stream) {
std::string content { std::istreambuf_iterator<char>(stream),
std::istreambuf_iterator<char>() };
std::vector<std::string> lines, sections;
boost::split(sections, content, boost::is_any_of("}"));
// Sections should be size 2 for a valid dot file
boost::split(lines, sections[0], boost::is_any_of("\n"));
for (auto line : lines) {
if (boost::contains(line, "label")) {
CircuitNode v;
auto firstBracket = line.find_first_of('[');
line = line.substr(firstBracket+1, line.size()-2);
boost::replace_all(line, ";", "");
boost::replace_all(line, "[", "");
boost::replace_all(line, "]", "");
boost::replace_all(line, "\"", "");
boost::replace_all(line, "label=", "");
boost::trim(line);
std::vector<std::string> labelLineSplit, removeId;
boost::split(labelLineSplit, line, boost::is_any_of(","));
for (auto a : labelLineSplit) {
std::vector<std::string> eqsplit;
boost::split(eqsplit, a, boost::is_any_of("="));
if (eqsplit[0] == "Gate") {
std::get<0>(v.properties) = eqsplit[1];
} else if (eqsplit[0] == "Circuit Layer") {
std::get<1>(v.properties) = std::stoi(eqsplit[1]);
} else if (eqsplit[0] == "Gate Vertex Id") {
std::get<2>(v.properties) = std::stoi(eqsplit[1]);
} else if (eqsplit[0] == "Gate Acting Qubits") {
auto qubitsStr = eqsplit[1];
boost::replace_all(qubitsStr, "[", "");
boost::replace_all(qubitsStr, "[", "");
std::vector<std::string> elementsStr;
std::vector<int> qubits;
boost::split(elementsStr, qubitsStr,
boost::is_any_of(" "));
for (auto element : elementsStr) {
qubits.push_back(std::stoi(element));
}
std::get<3>(v.properties) = qubits;
} else if (eqsplit[0] == "Enabled") {
std::get<4>(v.properties) = (bool) std::stoi(
eqsplit[1]);
}
}
addVertex(v);
}
}
// Now add the edges
lines.clear();
boost::split(lines, sections[1], boost::is_any_of(";\n"));
for (auto line : lines) {
boost::trim(line);
if (line == "}" || line.empty()) continue;
boost::trim(line);
boost::replace_all(line, "--", " ");
std::vector<std::string> vertexPairs;
boost::split(vertexPairs, line, boost::is_any_of(" "));
addEdge(std::stoi(vertexPairs[0]), std::stoi(vertexPairs[1]));
}
}
virtual ~QuantumCircuit() {}
};
}
}
#endif /* QUANTUM_GATE_UTILS_QUANTUMCIRCUIT_HPP_ */