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

include/fesa/properties/element_property.h

@@ -0,0 +1,28 @@
+#ifndef FESA_PROPERTIES_ELEMENT_PROPERTY_H_
+#define FESA_PROPERTIES_ELEMENT_PROPERTY_H_
+
+#include "fesa/core/source_identity.h"
+
+namespace fesa {
+
+/// @brief Identifies the supported concrete element-property semantics.
+enum class ElementPropertyKind { kGeneralBeamSection, kShellSection };
+
+/// @brief Provides stable identity for a Domain-owned element property.
+class ElementProperty {
+ public:
+  virtual ~ElementProperty() = default;
+
+  /// @brief Returns the concrete property kind.
+  virtual ElementPropertyKind 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 property.
+  virtual const SourceLocation& Location() const noexcept = 0;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_PROPERTIES_ELEMENT_PROPERTY_H_