+ xo-numeric/ [WIP]

include/xo/numeric/Numeric.hpp

@@ -0,0 +1,22 @@
+/** @file Numeric.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/Numeric.json5]
+ *  2. jinja2 template for facet .hpp file:
+ *       [facet.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/Numeric.json5]
+ **/
+
+#pragma once
+
+#include "detail/ANumeric.hpp"
+#include "detail/INumeric_Any.hpp"
+#include "detail/INumeric_Xfer.hpp"
+#include "detail/RNumeric.hpp"
+
+
+/* end Numeric.hpp */

include/xo/numeric/NumericDispatch.hpp

@@ -0,0 +1,20 @@
+/** @file NumericDispatch.hpp
+ *
+ *  @author Roland Conybeare, Feb 2026
+ **/
+
+#pragma once
+
+namespace xo {
+    namespace scm {
+
+        class NumericDispatch {
+        public:
+
+            
+        };
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end NumericDispatch.hpp */

include/xo/numeric/NumericOps.hpp

@@ -0,0 +1,44 @@
+/** @file NumericOps.hpp
+*
+ *  @author Roland Conybeare, Feb 2026
+ **/
+
+#pragma once
+
+#include "Numeric.hpp"
+
+namespace xo {
+    namespace scm {
+
+        class INumericOps {
+        public:
+            using BinaryOp1 = obj<ANumeric> (*)(obj<AAllocator> mm, void * x, void * y);
+
+        public:
+            explicit INumericOp9s(BinaryOp1 multiply) : multiply_{multiply} {}
+
+            /** multiply (x,y); allocate from mm **/
+            BinaryOp1 multiply_;
+        };
+
+        /** Convenience template. To use, provide implementation
+         *  for
+         *    _multiply() ...
+         *  
+         **/
+        template <typename DRepr1, typename DRepr2>
+        class NumericOps : public INumericOps {
+        public:
+            using BinaryOp1_Impl = obj<ANumeric> (*)(obj<AAllocator> mm, DRepr1 * x, DRepr2 * y);
+
+        public:
+            explicit NumericOps(BinaryOp1_Impl multiply)
+                    : INumericOps(reinterpret_cast<INumericOps::BinaryOp1>(multiply))
+            {}
+        };
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end NumericOps.hpp */
+

include/xo/numeric/detail/ANumeric.hpp

@@ -0,0 +1,70 @@
+/** @file ANumeric.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/Numeric.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [abstract_facet.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/Numeric.json5]
+ **/
+
+#pragma once
+
+// includes (via {facet_includes})
+#include <xo/facet/obj.hpp>
+#include <xo/facet/facet_implementation.hpp>
+#include <xo/facet/typeseq.hpp>
+
+
+namespace xo {
+namespace scm {
+
+using Copaque = const void *;
+using Opaque = void *;
+
+/**
+Abstraction for a schematika numeric
+**/
+class ANumeric {
+public:
+    /** @defgroup scm-numeric-type-traits **/
+    ///@{
+    // types
+    /** integer identifying a type **/
+    using typeseq = xo::facet::typeseq;
+    using Copaque = const void *;
+    using Opaque = void *;
+    ///@}
+
+    /** @defgroup scm-numeric-methods **/
+    ///@{
+    // const methods
+    /** RTTI: unique id# for actual runtime data representation **/
+    virtual typeseq _typeseq() const noexcept = 0;
+    /** destroy instance @p d; calls c++ dtor only for actual runtime type; does not recover memory **/
+    virtual void _drop(Opaque d) const noexcept = 0;
+
+    // nonconst methods
+    ///@}
+}; /*ANumeric*/
+
+/** Implementation INumeric_DRepr of ANumeric for state DRepr
+ *  should provide a specialization:
+ *
+ *    template <>
+ *    struct xo::facet::FacetImplementation<ANumeric, DRepr> {
+ *        using Impltype = INumeric_DRepr;
+ *    };
+ *
+ *  then INumeric_ImplType<DRepr> --> INumeric_DRepr
+ **/
+template <typename DRepr>
+using INumeric_ImplType = xo::facet::FacetImplType<ANumeric, DRepr>;
+
+} /*namespace scm*/
+} /*namespace xo*/
+
+/* ANumeric.hpp */

include/xo/numeric/detail/INumeric_Any.hpp

@@ -0,0 +1,87 @@
+/** @file INumeric_Any.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/Numeric.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/Numeric.json5]
+ **/
+
+#pragma once
+
+#include "ANumeric.hpp"
+#include <xo/facet/obj.hpp>
+
+namespace xo { namespace scm { class INumeric_Any; } }
+
+namespace xo {
+namespace facet {
+
+template <>
+struct FacetImplementation<xo::scm::ANumeric,
+                           DVariantPlaceholder>
+{
+    using ImplType = xo::scm::INumeric_Any;
+};
+
+}
+}
+
+namespace xo {
+namespace scm {
+
+    /** @class INumeric_Any
+     *  @brief ANumeric implementation for empty variant instance
+     **/
+    class INumeric_Any : public ANumeric {
+    public:
+        /** @defgroup scm-numeric-any-type-traits **/
+        ///@{
+
+        /** integer identifying a type **/
+        using typeseq = xo::facet::typeseq;
+
+        ///@}
+        /** @defgroup scm-numeric-any-methods **/
+        ///@{
+
+        const ANumeric * iface() const { return std::launder(this); }
+
+        // from ANumeric
+
+        // builtin methods
+        typeseq _typeseq() const noexcept override { return s_typeseq; }
+        [[noreturn]] void _drop(Opaque) const noexcept override { _fatal(); }
+
+        // const methods
+
+        // nonconst methods
+
+        ///@}
+
+    private:
+        /** @defgraoup scm-numeric-any-private-methods **/
+        ///@{
+
+        [[noreturn]] static void _fatal();
+
+        ///@}
+
+    public:
+        /** @defgroup scm-numeric-any-member-vars **/
+        ///@{
+
+        static typeseq s_typeseq;
+        static bool _valid;
+
+        ///@}
+    };
+
+} /*namespace scm */
+} /*namespace xo */
+
+/* INumeric_Any.hpp */

include/xo/numeric/detail/INumeric_Xfer.hpp

@@ -0,0 +1,79 @@
+/** @file INumeric_Xfer.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/Numeric.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/Numeric.json5]
+ **/
+
+#pragma once
+
+
+namespace xo {
+namespace scm {
+    /** @class INumeric_Xfer
+     **/
+    template <typename DRepr, typename INumeric_DRepr>
+    class INumeric_Xfer : public ANumeric {
+    public:
+        /** @defgroup scm-numeric-xfer-type-traits **/
+        ///@{
+        /** actual implementation (not generated; often delegates to DRepr) **/
+        using Impl = INumeric_DRepr;
+        /** integer identifying a type **/
+        using typeseq = ANumeric::typeseq;
+        ///@}
+
+        /** @defgroup scm-numeric-xfer-methods **/
+        ///@{
+
+        static const DRepr & _dcast(Copaque d) { return *(const DRepr *)d; }
+        static DRepr & _dcast(Opaque d) { return *(DRepr *)d; }
+
+        // from ANumeric
+
+        // builtin methods
+        typeseq _typeseq() const noexcept override { return s_typeseq; }
+        void _drop(Opaque d) const noexcept override { _dcast(d).~DRepr(); }
+
+        // const methods
+
+        // non-const methods
+
+        ///@}
+
+    private:
+        using I = Impl;
+
+    public:
+        /** @defgroup scm-numeric-xfer-member-vars **/
+        ///@{
+
+        /** typeseq for template parameter DRepr **/
+        static typeseq s_typeseq;
+        /** true iff satisfies facet implementation **/
+        static bool _valid;
+
+        ///@}
+    };
+
+    template <typename DRepr, typename INumeric_DRepr>
+    xo::facet::typeseq
+    INumeric_Xfer<DRepr, INumeric_DRepr>::s_typeseq
+      = xo::facet::typeseq::id<DRepr>();
+
+    template <typename DRepr, typename INumeric_DRepr>
+    bool
+    INumeric_Xfer<DRepr, INumeric_DRepr>::_valid
+      = xo::facet::valid_facet_implementation<ANumeric,
+                                              INumeric_Xfer>();
+
+} /*namespace scm */
+} /*namespace xo*/
+
+/* end INumeric_Xfer.hpp */

include/xo/numeric/detail/RNumeric.hpp

@@ -0,0 +1,81 @@
+/** @file RNumeric.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/Numeric.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/Numeric.json5]
+ **/
+
+#pragma once
+
+#include "ANumeric.hpp"
+
+namespace xo {
+namespace scm {
+
+/** @class RNumeric
+ **/
+template <typename Object>
+class RNumeric : public Object {
+private:
+    using O = Object;
+
+public:
+    /** @defgroup scm-numeric-router-type-traits **/
+    ///@{
+    using ObjectType = Object;
+    using DataPtr = Object::DataPtr;
+    using typeseq = xo::reflect::typeseq;
+    ///@}
+
+    /** @defgroup scm-numeric-router-ctors **/
+    ///@{
+    RNumeric() {}
+    RNumeric(Object::DataPtr data) : Object{std::move(data)} {}
+    RNumeric(const ANumeric * iface, void * data)
+      requires std::is_same_v<typename Object::DataType, xo::facet::DVariantPlaceholder>
+      : Object(iface, data) {}
+
+    ///@}
+    /** @defgroup scm-numeric-router-methods **/
+    ///@{
+
+    // explicit injected content
+
+    // builtin methods
+    typeseq _typeseq() const noexcept { return O::iface()->_typeseq(); }
+    void _drop() const noexcept { O::iface()->_drop(O::data()); }
+
+    // const methods
+
+    // non-const methods (still const in router!)
+
+    ///@}
+    /** @defgroup scm-numeric-member-vars **/
+    ///@{
+
+    static bool _valid;
+
+    ///@}
+};
+
+template <typename Object>
+bool
+RNumeric<Object>::_valid = xo::facet::valid_object_router<Object>();
+
+} /*namespace scm*/
+} /*namespace xo*/
+
+namespace xo { namespace facet {
+    template <typename Object>
+    struct RoutingFor<xo::scm::ANumeric, Object> {
+        using RoutingType = xo::scm::RNumeric<Object>;
+    };
+} }
+
+/* end RNumeric.hpp */