xo-interpreter2: scaffold repl + alloc measurement frameowkr

xo-alloc2/include/xo/alloc2/ResourceVisitor.hpp

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+/** @file ResourceVisitor.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/ResourceVisitor.json5]
+ *  2. jinja2 template for facet .hpp file:
+ *       [facet.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/ResourceVisitor.json5]
+ **/
+
+#pragma once
+
+#include "visitor/AResourceVisitor.hpp"
+#include "visitor/IResourceVisitor_Any.hpp"
+#include "visitor/IResourceVisitor_Xfer.hpp"
+#include "visitor/RResourceVisitor.hpp"
+
+
+/* end ResourceVisitor.hpp */

xo-alloc2/include/xo/alloc2/visitor/AResourceVisitor.hpp

@@ -0,0 +1,74 @@
+/** @file AResourceVisitor.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/ResourceVisitor.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [abstract_facet.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/ResourceVisitor.json5]
+ **/
+
+#pragma once
+
+// includes (via {facet_includes})
+#include "Allocator.hpp"
+#include <xo/facet/obj.hpp>
+#include <xo/facet/facet_implementation.hpp>
+#include <xo/facet/typeseq.hpp>
+
+// {pretext} here
+
+namespace xo {
+namespace mm {
+
+using Copaque = const void *;
+using Opaque = void *;
+
+/**
+Visitor to receive measured resource consumption
+**/
+class AResourceVisitor {
+public:
+    /** @defgroup mm-resourcevisitor-type-traits **/
+    ///@{
+    // types
+    /** integer identifying a type **/
+    using typeseq = xo::facet::typeseq;
+    using Copaque = const void *;
+    using Opaque = void *;
+    /** type for length of a sequence **/
+    using size_type = std::size_t;
+    ///@}
+
+    /** @defgroup mm-resourcevisitor-methods **/
+    ///@{
+    // const methods
+    /** RTTI: unique id# for actual runtime data representation **/
+    virtual typeseq _typeseq() const noexcept = 0;
+    /** report memory consumption **/
+    virtual void on_allocator(Copaque data, obj<AAllocator> mm)  const  noexcept = 0;
+
+    // nonconst methods
+    ///@}
+}; /*AResourceVisitor*/
+
+/** Implementation IResourceVisitor_DRepr of AResourceVisitor for state DRepr
+ *  should provide a specialization:
+ *
+ *    template <>
+ *    struct xo::facet::FacetImplementation<AResourceVisitor, DRepr> {
+ *        using Impltype = IResourceVisitor_DRepr;
+ *    };
+ *
+ *  then IResourceVisitor_ImplType<DRepr> --> IResourceVisitor_DRepr
+ **/
+template <typename DRepr>
+using IResourceVisitor_ImplType = xo::facet::FacetImplType<AResourceVisitor, DRepr>;
+
+} /*namespace mm*/
+} /*namespace xo*/
+
+/* AResourceVisitor.hpp */

xo-alloc2/include/xo/alloc2/visitor/IResourceVisitor_Any.hpp

@@ -0,0 +1,86 @@
+/** @file IResourceVisitor_Any.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/ResourceVisitor.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/ResourceVisitor.json5]
+ **/
+
+#pragma once
+
+#include "AResourceVisitor.hpp"
+#include <xo/facet/obj.hpp>
+
+namespace xo { namespace mm { class IResourceVisitor_Any; } }
+
+namespace xo {
+namespace facet {
+
+template <>
+struct FacetImplementation<xo::mm::AResourceVisitor,
+                           DVariantPlaceholder>
+{
+    using ImplType = xo::mm::IResourceVisitor_Any;
+};
+
+}
+}
+
+namespace xo {
+namespace mm {
+
+    /** @class IResourceVisitor_Any
+     *  @brief AResourceVisitor implementation for empty variant instance
+     **/
+    class IResourceVisitor_Any : public AResourceVisitor {
+    public:
+        /** @defgroup mm-resourcevisitor-any-type-traits **/
+        ///@{
+
+        /** integer identifying a type **/
+        using typeseq = xo::facet::typeseq;
+        using size_type = AResourceVisitor::size_type;
+
+        ///@}
+        /** @defgroup mm-resourcevisitor-any-methods **/
+        ///@{
+
+        const AResourceVisitor * iface() const { return std::launder(this); }
+
+        // from AResourceVisitor
+
+        // const methods
+        typeseq _typeseq() const noexcept override { return s_typeseq; }
+        [[noreturn]] void on_allocator(Copaque, obj<AAllocator>)  const  noexcept override { _fatal(); }
+
+        // nonconst methods
+
+        ///@}
+
+    private:
+        /** @defgraoup mm-resourcevisitor-any-private-methods **/
+        ///@{
+
+        [[noreturn]] static void _fatal();
+
+        ///@}
+
+    public:
+        /** @defgroup mm-resourcevisitor-any-member-vars **/
+        ///@{
+
+        static typeseq s_typeseq;
+        static bool _valid;
+
+        ///@}
+    };
+
+} /*namespace mm */
+} /*namespace xo */
+
+/* IResourceVisitor_Any.hpp */

xo-alloc2/include/xo/alloc2/visitor/IResourceVisitor_Xfer.hpp

@@ -0,0 +1,81 @@
+/** @file IResourceVisitor_Xfer.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/ResourceVisitor.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/ResourceVisitor.json5]
+ **/
+
+#pragma once
+
+#include "Allocator.hpp"
+
+namespace xo {
+namespace mm {
+    /** @class IResourceVisitor_Xfer
+     **/
+    template <typename DRepr, typename IResourceVisitor_DRepr>
+    class IResourceVisitor_Xfer : public AResourceVisitor {
+    public:
+        /** @defgroup mm-resourcevisitor-xfer-type-traits **/
+        ///@{
+        /** actual implementation (not generated; often delegates to DRepr) **/
+        using Impl = IResourceVisitor_DRepr;
+        /** integer identifying a type **/
+        using typeseq = AResourceVisitor::typeseq;
+        using size_type = AResourceVisitor::size_type;
+        ///@}
+
+        /** @defgroup mm-resourcevisitor-xfer-methods **/
+        ///@{
+
+        static const DRepr & _dcast(Copaque d) { return *(const DRepr *)d; }
+        static DRepr & _dcast(Opaque d) { return *(DRepr *)d; }
+
+        // from AResourceVisitor
+
+        // const methods
+        typeseq _typeseq() const noexcept override { return s_typeseq; }
+        void on_allocator(Copaque data, obj<AAllocator> mm)  const  noexcept override {
+            return I::on_allocator(_dcast(data), mm);
+        }
+
+        // non-const methods
+
+        ///@}
+
+    private:
+        using I = Impl;
+
+    public:
+        /** @defgroup mm-resourcevisitor-xfer-member-vars **/
+        ///@{
+
+        /** typeseq for template parameter DRepr **/
+        static typeseq s_typeseq;
+        /** true iff satisfies facet implementation **/
+        static bool _valid;
+
+        ///@}
+    };
+
+    template <typename DRepr, typename IResourceVisitor_DRepr>
+    xo::facet::typeseq
+    IResourceVisitor_Xfer<DRepr, IResourceVisitor_DRepr>::s_typeseq
+      = xo::facet::typeseq::id<DRepr>();
+
+    template <typename DRepr, typename IResourceVisitor_DRepr>
+    bool
+    IResourceVisitor_Xfer<DRepr, IResourceVisitor_DRepr>::_valid
+      = xo::facet::valid_facet_implementation<AResourceVisitor,
+                                              IResourceVisitor_Xfer>();
+
+} /*namespace mm */
+} /*namespace xo*/
+
+/* end IResourceVisitor_Xfer.hpp */

xo-alloc2/include/xo/alloc2/visitor/RResourceVisitor.hpp

@@ -0,0 +1,80 @@
+/** @file RResourceVisitor.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/ResourceVisitor.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/ResourceVisitor.json5]
+ **/
+
+#pragma once
+
+#include "AResourceVisitor.hpp"
+
+namespace xo {
+namespace mm {
+
+/** @class RResourceVisitor
+ **/
+template <typename Object>
+class RResourceVisitor : public Object {
+private:
+    using O = Object;
+
+public:
+    /** @defgroup mm-resourcevisitor-router-type-traits **/
+    ///@{
+    using ObjectType = Object;
+    using DataPtr = Object::DataPtr;
+    using typeseq = xo::reflect::typeseq;
+    using size_type = AResourceVisitor::size_type;
+    ///@}
+
+    /** @defgroup mm-resourcevisitor-router-ctors **/
+    ///@{
+    RResourceVisitor() {}
+    RResourceVisitor(Object::DataPtr data) : Object{std::move(data)} {}
+    RResourceVisitor(const AResourceVisitor * iface, void * data)
+      requires std::is_same_v<typename Object::DataType, xo::facet::DVariantPlaceholder>
+      : Object(iface, data) {}
+
+    ///@}
+    /** @defgroup mm-resourcevisitor-router-methods **/
+    ///@{
+
+    // const methods
+    typeseq _typeseq() const noexcept { return O::iface()->_typeseq(); }
+    void on_allocator(obj<AAllocator> mm)  const  noexcept {
+        return O::iface()->on_allocator(O::data(), mm);
+    }
+
+    // non-const methods (still const in router!)
+
+    ///@}
+    /** @defgroup mm-resourcevisitor-member-vars **/
+    ///@{
+
+    static bool _valid;
+
+    ///@}
+};
+
+template <typename Object>
+bool
+RResourceVisitor<Object>::_valid = xo::facet::valid_object_router<Object>();
+
+} /*namespace mm*/
+} /*namespace xo*/
+
+namespace xo { namespace facet {
+    template <typename Object>
+    struct RoutingFor<xo::mm::AResourceVisitor, Object> {
+        using RoutingType = xo::mm::RResourceVisitor<Object>;
+    };
+} }
+
+/* end RResourceVisitor.hpp */