64 lines
3.1 KiB

#include "Update.h"
#include "src/exceptions/ExceptionMacros.h"
#include "src/exceptions/OutOfRangeException.h"
namespace storm {
namespace prism {
Update::Update(uint_fast64_t globalIndex, storm::expressions::Expression const& likelihoodExpression, std::vector<storm::prism::Assignment> const& assignments, std::string const& filename, uint_fast64_t lineNumber) : LocatedInformation(filename, lineNumber), likelihoodExpression(likelihoodExpression), assignments(assignments), variableToAssignmentIndexMap(), globalIndex(globalIndex) {
this->createAssignmentMapping();
}
storm::expressions::Expression const& Update::getLikelihoodExpression() const {
return likelihoodExpression;
}
std::size_t Update::getNumberOfAssignments() const {
return this->assignments.size();
}
std::vector<storm::prism::Assignment> const& Update::getAssignments() const {
return this->assignments;
}
storm::prism::Assignment const& Update::getAssignment(std::string const& variableName) const {
auto const& variableIndexPair = this->variableToAssignmentIndexMap.find(variableName);
LOG_THROW(variableIndexPair != this->variableToAssignmentIndexMap.end(), storm::exceptions::OutOfRangeException, "Variable '" << variableName << "' is not assigned in update.");
return this->getAssignments()[variableIndexPair->second];
}
uint_fast64_t Update::getGlobalIndex() const {
return this->globalIndex;
}
void Update::createAssignmentMapping() {
this->variableToAssignmentIndexMap.clear();
for (uint_fast64_t assignmentIndex = 0; assignmentIndex < this->getAssignments().size(); ++assignmentIndex) {
this->variableToAssignmentIndexMap[this->getAssignments()[assignmentIndex].getVariableName()] = assignmentIndex;
}
}
Update Update::substitute(std::map<std::string, storm::expressions::Expression> const& substitution) const {
std::vector<Assignment> newAssignments;
newAssignments.reserve(this->getNumberOfAssignments());
for (auto const& assignment : this->getAssignments()) {
newAssignments.emplace_back(assignment.substitute(substitution));
}
return Update(this->getGlobalIndex(), this->getLikelihoodExpression().substitute(substitution), newAssignments, this->getFilename(), this->getLineNumber());
}
std::ostream& operator<<(std::ostream& stream, Update const& update) {
stream << update.getLikelihoodExpression() << " : ";
uint_fast64_t i = 0;
for (auto const& assignment : update.getAssignments()) {
stream << assignment;
if (i < update.getAssignments().size() - 1) {
stream << " & ";
}
++i;
}
return stream;
}
} // namespace ir
} // namespace storm