feat(cpp-object-oriented-modular-refactoring): step 12 - material-property-hierarchy

include/fesa/materials/material.h

@@ -0,0 +1,28 @@
+#ifndef FESA_MATERIALS_MATERIAL_H_
+#define FESA_MATERIALS_MATERIAL_H_
+
+#include "fesa/core/source_identity.h"
+
+namespace fesa {
+
+/// @brief Identifies the supported concrete material semantics.
+enum class MaterialKind { kIsotropicLinearElastic };
+
+/// @brief Provides stable identity for a Domain-owned material definition.
+class Material {
+ public:
+  virtual ~Material() = default;
+
+  /// @brief Returns the concrete material kind.
+  virtual MaterialKind Kind() const noexcept = 0;
+
+  /// @brief Returns the stable source identity preserved for diagnostics.
+  virtual const SourceEntityId& SourceId() const noexcept = 0;
+
+  /// @brief Returns the input location that defined the material.
+  virtual const SourceLocation& Location() const noexcept = 0;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_MATERIALS_MATERIAL_H_