feat(libmeanfield): variadic refactor

also added normaliztion operator
2026-09-06 10:15:00 -04:00
parent 71423d543f
commit 76818f2f82
63 changed files with 28794 additions and 1119 deletions
--- a/extension_example/tests/rotating_stellar_model.cpp
+++ b/extension_example/tests/rotating_stellar_model.cpp
@@ -0,0 +1,67 @@
+#include <concepts>
+#include <type_traits>
+
+#include <catch2/catch_test_macros.hpp>
+
+import mean_field;
+import mean_field_extension_example.rotating_stellar_model;
+
+TEST_CASE("The example EOS composes with existing stellar specifications",
+          "[extension-example][model][type]") {
+    using namespace mean_field;
+    namespace example = mean_field::extension_example;
+
+    const auto stellarModel = example::makeRotatingStellarModel({
+        .equationOfState = {
+            .meanMolecularWeight = 0.62,
+            .boltzmannConstant = 1.380649e-16,
+            .atomicMassUnit = 1.66053906660e-24,
+            .radiationConstant = 7.5657e-15
+        },
+        .surfacePressure = dimensions::PressureValue{0.0},
+        .totalMass = dimensions::MassValue{1.75},
+        .totalAngularMomentum = dimensions::AngularMomentumValue{0.3},
+        .rotationAxis = {0.0, 0.0, 4.0},
+        .rotationCenter = {0.1, -0.2, 0.3}
+    });
+    using Model = std::remove_cvref_t<decltype(stellarModel)>;
+
+    STATIC_CHECK(std::same_as<Model, example::RotatingStellarModel>);
+    STATIC_CHECK(model::StellarModelType<Model>);
+    STATIC_CHECK(Model::symbolicallySquare);
+    STATIC_CHECK(Model::specificationCount == 4);
+    STATIC_CHECK(std::same_as<model::EquationOfStateType<Model>, example::IdealGasRadiation>);
+    STATIC_CHECK(Model::template containsSpecification<integral::FixedTotalMass>);
+    STATIC_CHECK(Model::template containsSpecification<integral::FixedAngularMomentum>);
+    STATIC_CHECK(Model::template specificationRoleCount<models::SpecificationRole::constitutive_law> == 1);
+    STATIC_CHECK(Model::template specificationRoleCount<models::SpecificationRole::boundary_condition> == 1);
+    STATIC_CHECK(Model::template specificationRoleCount<models::SpecificationRole::invariant> == 2);
+
+    CHECK(stellarModel.equationOfState().parameters().meanMolecularWeight == 0.62);
+    CHECK(stellarModel.surfaceCondition().targetPressure() == dimensions::PressureValue{0.0});
+    CHECK(stellarModel.specification<integral::FixedTotalMass>().targetMass() == dimensions::MassValue{1.75});
+
+    const auto &angularMomentum = stellarModel.specification<integral::FixedAngularMomentum>();
+    CHECK(angularMomentum.targetAngularMomentum() == dimensions::AngularMomentumValue{0.3});
+    CHECK(angularMomentum.axis()[0] == 0.0);
+    CHECK(angularMomentum.axis()[1] == 0.0);
+    CHECK(angularMomentum.axis()[2] == 1.0);
+    CHECK(angularMomentum.center()[0] == 0.1);
+    CHECK(angularMomentum.center()[1] == -0.2);
+    CHECK(angularMomentum.center()[2] == 0.3);
+    CHECK(stellarModel.runtimeSpecificationDescriptors().size() == 4);
+}
+
+TEST_CASE("The example states the current thermal-runtime boundary explicitly",
+          "[extension-example][model][capability]") {
+    using Model = mean_field::extension_example::RotatingStellarModel;
+
+    /*
+     * This is not a failure of model composition.  It is the intended
+     * compile-time rejection of a thermal EOS by a currently barotropic
+     * numerical core.  See the manual section 'What compiles today'.
+     */
+    STATIC_CHECK(mean_field::model::StellarModelType<Model>);
+    STATIC_CHECK_FALSE(mean_field::extension_example::currentEquilibriumBackendSupportsIdealGasRadiation);
+    STATIC_CHECK_FALSE(mean_field::equilibrium::StellarEquilibriumModel<Model>);
+}