Files
fourdst/src-pybind/composition/bindings.cpp

401 lines
18 KiB
C++

#include <pybind11/pybind11.h>
#include <pybind11/stl.h> // Needed for vectors, maps, sets, strings
#include <pybind11/stl_bind.h> // Needed for binding std::vector, std::map etc. if needed directly
#include <string>
#include "fourdst/composition/composition.h"
#include "fourdst/atomic/atomicSpecies.h"
#include "bindings.h"
#include "fourdst/atomic/species.h"
#include "fourdst/composition/utils.h"
#include "fourdst/composition/utils/composition_hash.h"
#include "fourdst/composition/exceptions/exceptions_composition.h"
namespace py = pybind11;
std::string sv_to_string(std::string_view sv) {
return std::string(sv);
}
std::string get_ostream_str(const fourdst::composition::Composition& comp) {
std::ostringstream oss;
oss << comp;
return oss.str();
}
void register_comp_bindings(pybind11::module &m) {
py::class_<fourdst::composition::CanonicalComposition>(m, "CanonicalComposition")
.def_readonly("X", &fourdst::composition::CanonicalComposition::X)
.def_readonly("Y", &fourdst::composition::CanonicalComposition::Y)
.def_readonly("Z", &fourdst::composition::CanonicalComposition::Z)
.def("__repr__", // Add a string representation for easy printing in Python
[](const fourdst::composition::CanonicalComposition &cc) {
return "<CanonicalComposition(X=" + std::to_string(cc.X) +
", Y=" + std::to_string(cc.Y) +
", Z=" + std::to_string(cc.Z) + ")>";
});
// --- Binding for the main Composition class ---
py::class_<fourdst::composition::Composition>(m, "Composition")
// Constructors
.def(
py::init<>(),
"Default constructor")
.def(
py::init<const std::vector<std::string>&>(),
py::arg("symbols"),
"Constructor taking a list of symbols to register")
.def(
py::init<const std::set<std::string>&>(),
py::arg("symbols"),
"Constructor taking a set of symbols to register"
)
.def(
py::init<const std::vector<fourdst::atomic::Species>&>(),
py::arg("species"),
"Constructor taking a list of species to register")
.def(
py::init<const std::set<fourdst::atomic::Species>&>(),
py::arg("species"),
"Constructor taking a set of species to register"
)
.def(
py::init<const std::vector<std::string>&, const std::vector<double>&>(),
py::arg("symbols"),
py::arg("molarAbundances"),
"Constructor taking a list of symbols and molar abundances"
)
.def(
py::init<const std::vector<fourdst::atomic::Species>&, const std::vector<double>&>(),
py::arg("species"),
py::arg("molarAbundances"),
"Constructor taking a list of species and molar abundances"
)
.def(
py::init<const std::set<std::string>&, const std::vector<double>&>(),
py::arg("symbols"),
py::arg("molarAbundances"),
"Constructor taking a set of symbols and a list of molar abundances"
)
.def(
py::init<const std::unordered_map<fourdst::atomic::Species, double>&>(),
py::arg("speciesMolarAbundances"),
"Constructor taking an unordered map of species to molar abundances"
)
.def (
py::init<const std::map<fourdst::atomic::Species, double>&>(),
py::arg("speciesMolarAbundances"),
"Constructor taking a map of species to molar abundances"
)
.def(
py::init<const std::unordered_map<std::string, double>&>(),
py::arg("speciesMolarAbundances"),
"Constructor taking an unordered map of species to molar abundances"
)
.def (
py::init<const std::map<std::string, double>&>(),
py::arg("speciesMolarAbundances"),
"Constructor taking a map of species to molar abundances"
)
.def(
"registerSymbol",
py::overload_cast<const std::string&>(&fourdst::composition::Composition::registerSymbol),
py::arg("symbol"),
"Register a single symbol. The molar abundance will be initialized to zero.")
.def(
"registerSymbol",
py::overload_cast<const std::vector<std::string>&>(&fourdst::composition::Composition::registerSymbol),
py::arg("symbols"),
"Register multiple symbols. Each molar abundance will be initialized to zero.")
.def(
"registerSpecies",
py::overload_cast<const fourdst::atomic::Species&>(&fourdst::composition::Composition::registerSpecies),
py::arg("species"),
"Register a single species. The molar abundance will be initialized to zero.")
.def(
"registerSpecies",
py::overload_cast<const std::vector<fourdst::atomic::Species>&>(&fourdst::composition::Composition::registerSpecies),
py::arg("species"),
"Register multiple species. Each molar abundance will be initialized to zero.")
.def(
"contains",
py::overload_cast<const std::string&>(&fourdst::composition::Composition::contains, py::const_),
py::arg("symbol"),
"Check if a symbol is in the composition.")
.def(
"contains",
py::overload_cast<const fourdst::atomic::Species&>(&fourdst::composition::Composition::contains, py::const_),
py::arg("species"),
"Check if a species is in the composition.")
.def(
"size",
&fourdst::composition::Composition::size,
"Get the number of registered species in the composition.")
.def(
"setMolarAbundance",
py::overload_cast<const std::string&, const double&>(&fourdst::composition::Composition::setMolarAbundance),
py::arg("symbol"),
py::arg("molarAbundance"),
"Set the molar abundance for a symbol.")
.def(
"setMolarAbundance",
py::overload_cast<const fourdst::atomic::Species&, const double&>(&fourdst::composition::Composition::setMolarAbundance),
py::arg("species"),
py::arg("molarAbundance"),
"Set the molar abundance for a species.")
.def(
"setMolarAbundance",
py::overload_cast<const std::vector<std::string>&, const std::vector<double>&>(&fourdst::composition::Composition::setMolarAbundance),
py::arg("symbols"),
py::arg("molarAbundances"),
"Set the molar abundance for a list of symbols. The molar abundance vector must be parallel to the symbols vector.")
.def(
"setMolarAbundance",
py::overload_cast<const std::vector<fourdst::atomic::Species>&, const std::vector<double>&>(&fourdst::composition::Composition::setMolarAbundance),
py::arg("species"),
py::arg("molarAbundances"),
"Set the molar abundance for a list of species. The molar abundance vector must be parallel to the species vector.")
.def(
"getRegisteredSymbols",
&fourdst::composition::Composition::getRegisteredSymbols,
"Get the set of registered symbols.")
.def(
"getRegisteredSpecies",
&fourdst::composition::Composition::getRegisteredSpecies,
"Get the set of registered species.")
.def(
"getMassFraction",
py::overload_cast<const std::string&>(&fourdst::composition::Composition::getMassFraction, py::const_),
py::arg("symbol"),
"Get mass fraction for a symbol.")
.def(
"getMassFraction",
py::overload_cast<const fourdst::atomic::Species&>(&fourdst::composition::Composition::getMassFraction, py::const_),
py::arg("species"),
"Get mass fraction for a species.")
.def(
"getMassFraction",
py::overload_cast<>(&fourdst::composition::Composition::getMassFraction, py::const_),
"Get dictionary of all mass fractions. ")
.def(
"getNumberFraction",
py::overload_cast<const std::string&>(&fourdst::composition::Composition::getNumberFraction, py::const_),
py::arg("symbol"),
"Get number fraction for a symbol.")
.def(
"getNumberFraction",
py::overload_cast<const fourdst::atomic::Species&>(&fourdst::composition::Composition::getNumberFraction, py::const_),
py::arg("species"),
"Get number fraction for a species.")
.def("getNumberFraction", py::overload_cast<>(&fourdst::composition::Composition::getNumberFraction, py::const_),
"Get dictionary of all number fractions.")
.def(
"getMolarAbundance",
py::overload_cast<const std::string&>(&fourdst::composition::Composition::getMolarAbundance, py::const_),
py::arg("symbol"),
"Get molar abundance for a symbol.")
.def(
"getMolarAbundance",
py::overload_cast<const fourdst::atomic::Species&>(&fourdst::composition::Composition::getMolarAbundance, py::const_),
py::arg("species"),
"Get molar abundance for a species.")
.def(
"getMeanParticleMass",
&fourdst::composition::Composition::getMeanParticleMass,
"Get the mean particle mass (amu)")
.def(
"getMassFractionVector",
&fourdst::composition::Composition::getMassFractionVector,
"Get mass fractions as a vector (ordered by species mass).")
.def(
"getNumberFractionVector",
&fourdst::composition::Composition::getNumberFractionVector,
"Get number fractions as a vector (ordered by species mass)")
.def(
"getMolarAbundanceVector",
&fourdst::composition::Composition::getMolarAbundanceVector,
"Get molar abundances as a vector (ordered by species mass).")
.def(
"getSpeciesIndex",
py::overload_cast<const std::string&>(&fourdst::composition::Composition::getSpeciesIndex, py::const_), py::arg("symbol"),
"Get the index of a species in the internal ordering.")
.def(
"getSpeciesIndex",
py::overload_cast<const fourdst::atomic::Species&>(&fourdst::composition::Composition::getSpeciesIndex, py::const_), py::arg("species"),
"Get the index of a species in the internal ordering.")
.def(
"getSpeciesAtIndex",
py::overload_cast<size_t>(&fourdst::composition::Composition::getSpeciesAtIndex, py::const_), py::arg("index"),
"Get the species at a given index in the internal ordering.")
.def(
"getCanonicalComposition",
&fourdst::composition::Composition::getCanonicalComposition,
"Get a canonical composition (X, Y, Z). d")
// Add __repr__ or __str__
.def(
"__repr__",
[](const fourdst::composition::Composition &comp) {
return get_ostream_str(comp); // Use helper for C++ operator<<
})
.def(
"__iter__",
[](const fourdst::composition::Composition& comp) {
return py::make_iterator(comp.begin(), comp.end());
},
py::keep_alive<0, 1>())
.def(
"__eq__",
[](const fourdst::composition::Composition& self, const fourdst::composition::Composition& other) {
return self == other;
},
py::is_operator()
)
.def(
"__hash__",
[](const fourdst::composition::Composition& comp) {
return fourdst::composition::utils::CompositionHash::hash_exact<fourdst::composition::Composition>(comp);
}
);
// register new utils module
auto utils = m.def_submodule("utils", "Utility functions for Composition");
py::class_<fourdst::composition::utils::CompositionHash>(utils, "CompositionHash")
.def_static(
"hash_exact",
&fourdst::composition::utils::CompositionHash::hash_exact<fourdst::composition::Composition>,
py::arg("composition"),
"Compute a hash for a given Composition object."
);
utils.def(
"buildCompositionFromMassFractions",
[](const std::vector<std::string>& symbols, const std::vector<double>& massFractions) {
return fourdst::composition::buildCompositionFromMassFractions(symbols, massFractions);
},
py::arg("symbols"),
py::arg("massFractions"),
"Build a Composition object from symbols and their corresponding mass fractions."
);
utils.def("buildCompositionFromMassFractions",
[](const std::vector<fourdst::atomic::Species>& species, const std::vector<double>& massFractions) {
return fourdst::composition::buildCompositionFromMassFractions(species, massFractions);
},
py::arg("species"),
py::arg("massFractions"),
"Build a Composition object from species and their corresponding mass fractions."
);
utils.def(
"buildCompositionFromMassFractions",
[](const std::set<fourdst::atomic::Species>& species, const std::vector<double>& massFractions) {
return fourdst::composition::buildCompositionFromMassFractions(species, massFractions);
},
py::arg("species"),
py::arg("massFractions"),
"Build a Composition object from species in a set and their corresponding mass fractions."
);
utils.def(
"buildCompositionFromMassFractions",
[](const std::unordered_map<fourdst::atomic::Species, double>& massFractionsMap) {
return fourdst::composition::buildCompositionFromMassFractions(massFractionsMap);
},
py::arg("massFractionsMap"),
"Build a Composition object from a map of species to mass fractions."
);
utils.def(
"buildCompositionFromMassFractions",
[](const std::map<fourdst::atomic::Species, double>& massFractionsMap) {
return fourdst::composition::buildCompositionFromMassFractions(massFractionsMap);
},
py::arg("massFractionsMap"),
"Build a Composition object from a map of species to mass fractions."
);
}
void register_species_bindings(pybind11::module &chem_submodule) {
// --- Bindings for species module ---
py::class_<fourdst::atomic::Species>(chem_submodule, "Species")
.def("mass", &fourdst::atomic::Species::mass, "Get atomic mass (amu)")
.def("massUnc", &fourdst::atomic::Species::massUnc, "Get atomic mass uncertainty (amu)")
.def("bindingEnergy", &fourdst::atomic::Species::bindingEnergy, "Get binding energy (keV/nucleon?)") // Check units
.def("betaDecayEnergy", &fourdst::atomic::Species::betaDecayEnergy, "Get beta decay energy (keV?)") // Check units
.def("betaCode", [](const fourdst::atomic::Species& s){ return sv_to_string(s.betaCode()); }, "Get beta decay code") // Convert string_view
.def("name", [](const fourdst::atomic::Species& s){ return sv_to_string(s.name()); }, "Get species name (e.g., 'H-1')") // Convert string_view
.def("el", [](const fourdst::atomic::Species& s){ return sv_to_string(s.el()); }, "Get element symbol (e.g., 'H')") // Convert string_view
.def("nz", &fourdst::atomic::Species::nz, "Get NZ value")
.def("n", &fourdst::atomic::Species::n, "Get neutron number N")
.def("z", &fourdst::atomic::Species::z, "Get proton number Z")
.def("a", &fourdst::atomic::Species::a, "Get mass number A")
.def("__repr__",
[](const fourdst::atomic::Species &s) {
std::ostringstream oss;
oss << s;
return oss.str();
}
)
.def(
"__eq__",
[](const fourdst::atomic::Species& self, const fourdst::atomic::Species& other) {
return self == other;
},
py::is_operator()
)
.def(
"__hash__",
[](const fourdst::atomic::Species& s) {
return std::hash<fourdst::atomic::Species>()(s);
}
);
chem_submodule.attr("species") = py::cast(fourdst::atomic::species); // Expose the species map
auto replace_dash_with_underscore = [](const std::string& str) {
std::string result = str;
std::ranges::replace(result, '-', '_');
return result;
};
for (const auto& [name, species] : fourdst::atomic::species) {
chem_submodule.attr(replace_dash_with_underscore(name).c_str()) = py::cast(species);
}
chem_submodule.def("az_to_species",
[](const int a, const int z) {
const auto result = fourdst::atomic::az_to_species(a, z);
if (!result) {
throw fourdst::composition::exceptions::SpeciesError(std::format("Species with A={} and Z={} not found.", a, z));
}
return result.value();
},
py::arg("a"),
py::arg("z"),
"Get Species object from proton number (Z) and mass number (A)."
);
}
void register_comp_exceptions(pybind11::module &m) {
py::register_exception<fourdst::composition::exceptions::CompositionError>(m, "CompositionError");
py::register_exception<fourdst::composition::exceptions::InvalidCompositionError>(m, "InvalidCompositionError", m.attr("CompositionError"));
py::register_exception<fourdst::composition::exceptions::SpeciesError>(m, "SpeciesError");
py::register_exception<fourdst::composition::exceptions::UnknownSymbolError>(m, "UnknownSymbolError", m.attr("SpeciesError"));
py::register_exception<fourdst::composition::exceptions::UnregisteredSymbolError>(m, "UnregisteredSymbolError", m.attr("SpeciesError"));
}