xo-object2: + DBoolean w/ AGCObject, APrintable facets

CMakeLists.txt

@@ -28,6 +28,8 @@ xo_add_genfacet(
     OUTPUT_CPP_DIR src/object2
 )
 
+# ----------------------------------------------------------------
+
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-sequence-list
@@ -64,6 +66,34 @@ xo_add_genfacetimpl(
     OUTPUT_CPP_DIR src/object2
 )
 
+# ----------------------------------------------------------------
+
+# note: manual target; generated code committed to git
+xo_add_genfacetimpl(
+    TARGET xo-object2-facetimpl-printable-boolean
+    FACET_PKG xo_printable2
+    FACET Printable
+    REPR Boolean
+    INPUT idl/IPrintable_DBoolean.json5
+    OUTPUT_HPP_DIR include/xo/object2
+    OUTPUT_IMPL_SUBDIR boolean
+    OUTPUT_CPP_DIR src/object2
+)
+
+# note: manual target; generated code committed to git
+xo_add_genfacetimpl(
+    TARGET xo-object2-facetimpl-gcobject-boolean
+    FACET_PKG xo_gc
+    FACET GCObject
+    REPR Boolean
+    INPUT idl/IGCObject_DBoolean.json5
+    OUTPUT_HPP_DIR include/xo/object2
+    OUTPUT_IMPL_SUBDIR boolean
+    OUTPUT_CPP_DIR src/object2
+)
+
+# ----------------------------------------------------------------
+
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-float
@@ -88,6 +118,8 @@ xo_add_genfacetimpl(
     OUTPUT_CPP_DIR src/object2
 )
 
+# ----------------------------------------------------------------
+
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-integer
@@ -112,6 +144,8 @@ xo_add_genfacetimpl(
     OUTPUT_CPP_DIR src/object2
 )
 
+# ----------------------------------------------------------------
+
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-string
@@ -136,6 +170,8 @@ xo_add_genfacetimpl(
     OUTPUT_CPP_DIR src/object2
 )
 
+# ----------------------------------------------------------------
+
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-sequence-array

idl/IGCObject_DBoolean.json5

@@ -0,0 +1,15 @@
+{
+    mode: "implementation",
+    includes: [
+        "<xo/gc/GCObject.hpp>",
+        "<xo/alloc2/Allocator.hpp>"
+    ],
+    local_types: [ ],
+    namespace1: "xo",
+    namespace2: "scm",
+    facet_idl: "idl/GCObject.json5",
+    brief: "provide AGCObject interface for DBoolean",
+    using_doxygen: true,
+    repr: "DBoolean",
+    doc: [ "implement AGCObject for DBoolean" ],
+}

idl/IPrintable_DBoolean.json5

@@ -0,0 +1,13 @@
+{
+    mode: "implementation",
+    includes: [ "<xo/printable2/Printable.hpp>",
+                "<xo/printable2/detail/IPrintable_Xfer.hpp>" ],
+    local_types: [ ],
+    namespace1: "xo",
+    namespace2: "scm",
+    facet_idl: "idl/Printable.json5",
+    brief: "provide APrintable interface for DBoolean",
+    using_doxygen: true,
+    repr: "DBoolean",
+    doc: [ "implement APrintable for DBoolean" ],
+}

include/xo/object2/DBoolean.hpp

@@ -0,0 +1,57 @@
+/** @file DBoolean.hpp
+ *
+ *  @author Roland Conybeare, Dec 2025
+ **/
+
+#pragma once
+
+#include <xo/gc/Collector.hpp>
+#include <xo/alloc2/Allocator.hpp>
+#include <xo/indentlog/print/ppindentinfo.hpp>
+#include <xo/facet/obj.hpp>
+#include <cstdint>
+
+namespace xo {
+    namespace scm {
+        struct DBoolean {
+            using AAllocator = xo::mm::AAllocator;
+            using ACollector = xo::mm::ACollector;
+            using ppindentinfo = xo::print::ppindentinfo;
+            using value_type = long;
+
+            explicit DBoolean(bool x) : value_{x} {}
+
+            /** will likely want this to default to ANumeric, once we have it **/
+            template <typename AFacet>
+            static obj<AFacet, DBoolean> box(obj<AAllocator> mm, bool x);
+
+            /** allocate boxed value @p x using memory from @p mm **/
+            static DBoolean * _box(obj<AAllocator> mm, bool x);
+
+            bool value() const noexcept { return value_; }
+
+            bool pretty(const ppindentinfo & ppii) const;
+
+            operator bool() const noexcept { return value_; }
+
+            // GCObject facet
+
+            std::size_t shallow_size() const noexcept;
+            DBoolean * shallow_copy(obj<AAllocator> mm) const noexcept;
+            std::size_t forward_children(obj<ACollector> gc) noexcept;
+
+        private:
+            /** boxed boolean value **/
+            bool value_;
+        };
+
+        template <typename AFacet>
+        obj<AFacet, DBoolean>
+        DBoolean::box(obj<AAllocator> mm, bool x) {
+            return obj<AFacet,DBoolean>(_box(mm, x));
+        }
+
+    } /*nmaespace obj*/
+} /*namespace xo*/
+
+/* end DBoolean.hpp */

include/xo/object2/boolean/IGCObject_DBoolean.hpp

@@ -0,0 +1,67 @@
+/** @file IGCObject_DBoolean.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [/home/roland/proj/xo-umbrella2-claude1/xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/IGCObject_DBoolean.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_repr.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/IGCObject_DBoolean.json5]
+ **/
+
+#pragma once
+
+#include "GCObject.hpp"
+#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/Allocator.hpp>
+#include "DBoolean.hpp"
+
+namespace xo { namespace scm { class IGCObject_DBoolean; } }
+
+namespace xo {
+    namespace facet {
+        template <>
+        struct FacetImplementation<xo::mm::AGCObject,
+                                   xo::scm::DBoolean>
+        {
+            using ImplType = xo::mm::IGCObject_Xfer
+              <xo::scm::DBoolean,
+               xo::scm::IGCObject_DBoolean>;
+        };
+    }
+}
+
+namespace xo {
+    namespace scm {
+        /** @class IGCObject_DBoolean
+         **/
+        class IGCObject_DBoolean {
+        public:
+            /** @defgroup scm-gcobject-dboolean-type-traits **/
+            ///@{
+            using size_type = xo::mm::AGCObject::size_type;
+            using AAllocator = xo::mm::AGCObject::AAllocator;
+            using ACollector = xo::mm::AGCObject::ACollector;
+            using Copaque = xo::mm::AGCObject::Copaque;
+            using Opaque = xo::mm::AGCObject::Opaque;
+            ///@}
+            /** @defgroup scm-gcobject-dboolean-methods **/
+            ///@{
+            // const methods
+            /** memory consumption for this instance **/
+            static size_type shallow_size(const DBoolean & self) noexcept;
+            /** copy instance using allocator **/
+            static Opaque shallow_copy(const DBoolean & self, obj<AAllocator> mm) noexcept;
+
+            // non-const methods
+            /** during GC: forward immdiate children **/
+            static size_type forward_children(DBoolean & self, obj<ACollector> gc) noexcept;
+            ///@}
+        };
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end */

include/xo/object2/boolean/IPrintable_DBoolean.hpp

@@ -0,0 +1,62 @@
+/** @file IPrintable_DBoolean.hpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [/home/roland/proj/xo-umbrella2-claude1/xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/IPrintable_DBoolean.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_repr.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/IPrintable_DBoolean.json5]
+ **/
+
+#pragma once
+
+#include "Printable.hpp"
+#include <xo/printable2/Printable.hpp>
+#include <xo/printable2/detail/IPrintable_Xfer.hpp>
+#include "DBoolean.hpp"
+
+namespace xo { namespace scm { class IPrintable_DBoolean; } }
+
+namespace xo {
+    namespace facet {
+        template <>
+        struct FacetImplementation<xo::print::APrintable,
+                                   xo::scm::DBoolean>
+        {
+            using ImplType = xo::print::IPrintable_Xfer
+              <xo::scm::DBoolean,
+               xo::scm::IPrintable_DBoolean>;
+        };
+    }
+}
+
+namespace xo {
+    namespace scm {
+        /** @class IPrintable_DBoolean
+         **/
+        class IPrintable_DBoolean {
+        public:
+            /** @defgroup scm-printable-dboolean-type-traits **/
+            ///@{
+            using ppindentinfo = xo::print::APrintable::ppindentinfo;
+            using Copaque = xo::print::APrintable::Copaque;
+            using Opaque = xo::print::APrintable::Opaque;
+            ///@}
+            /** @defgroup scm-printable-dboolean-methods **/
+            ///@{
+            // const methods
+            /** Pretty-printing support for this object.
+See [xo-indentlog/xo/indentlog/pretty.hpp] **/
+            static bool pretty(const DBoolean & self, const ppindentinfo & ppii);
+
+            // non-const methods
+            ///@}
+        };
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end */

src/object2/CMakeLists.txt

@@ -4,6 +4,7 @@ set(SELF_LIB xo_object2)
 set(SELF_SRCS
     IGCObject_DArray.cpp
     IGCObject_DFloat.cpp
+    IGCObject_DBoolean.cpp
     IGCObject_DInteger.cpp
     IGCObject_DList.cpp
     IGCObject_DString.cpp
@@ -11,6 +12,7 @@ set(SELF_SRCS
     ISequence_DArray.cpp
     ISequence_DList.cpp
     IPrintable_DList.cpp
+    IPrintable_DBoolean.cpp
     IPrintable_DFloat.cpp
     IPrintable_DInteger.cpp
     IPrintable_DString.cpp
@@ -18,6 +20,7 @@ set(SELF_SRCS
     DList.cpp
     DFloat.cpp
     DInteger.cpp
+    DBoolean.cpp
     DString.cpp
     init_object2.cpp
     object2_register_types.cpp

src/object2/DBoolean.cpp

@@ -0,0 +1,57 @@
+/** @file DBoolean.cpp
+*
+ *  @author Roland Conybeare, Jan 2026
+ **/
+
+#include "DBoolean.hpp"
+#include <xo/indentlog/print/pretty.hpp>
+#include <xo/indentlog/scope.hpp>
+
+namespace xo {
+    using xo::facet::typeseq;
+    using xo::print::ppdetail_atomic;
+
+    namespace scm {
+        DBoolean *
+        DBoolean::_box(obj<AAllocator> mm, bool x)
+        {
+            void * mem = mm.alloc(typeseq::id<DBoolean>(),
+                                  sizeof(DBoolean));
+
+            return new (mem) DBoolean(x);
+        }
+
+        bool
+        DBoolean::pretty(const ppindentinfo & ppii) const
+        {
+            return ppdetail_atomic<long>::print_pretty(ppii, value_);
+        }
+
+        size_t
+        DBoolean::shallow_size() const noexcept
+        {
+            return sizeof(DBoolean);
+        }
+
+        DBoolean *
+        DBoolean::shallow_copy(obj<AAllocator> mm) const noexcept
+        {
+            DBoolean * copy = (DBoolean *)mm.alloc_copy((std::byte *)this);
+
+            if (copy)
+                *copy = *this;
+
+            return copy;
+        }
+
+        size_t
+        DBoolean::forward_children(obj<ACollector>) noexcept
+        {
+            return shallow_size();
+        }
+
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end DBoolean.cpp */

src/object2/IGCObject_DBoolean.cpp

@@ -0,0 +1,39 @@
+/** @file IGCObject_DBoolean.cpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [/home/roland/proj/xo-umbrella2-claude1/xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/IGCObject_DBoolean.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/IGCObject_DBoolean.json5]
+**/
+
+#include "boolean/IGCObject_DBoolean.hpp"
+
+namespace xo {
+    namespace scm {
+        auto
+        IGCObject_DBoolean::shallow_size(const DBoolean & self) noexcept -> size_type
+        {
+            return self.shallow_size();
+        }
+
+        auto
+        IGCObject_DBoolean::shallow_copy(const DBoolean & self, obj<AAllocator> mm) noexcept -> Opaque
+        {
+            return self.shallow_copy(mm);
+        }
+
+        auto
+        IGCObject_DBoolean::forward_children(DBoolean & self, obj<ACollector> gc) noexcept -> size_type
+        {
+            return self.forward_children(gc);
+        }
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end IGCObject_DBoolean.cpp */

src/object2/IPrintable_DBoolean.cpp

@@ -0,0 +1,28 @@
+/** @file IPrintable_DBoolean.cpp
+ *
+ *  Generated automagically from ingredients:
+ *  1. code generator:
+ *       [/home/roland/proj/xo-umbrella2-claude1/xo-facet/codegen/genfacet]
+ *     arguments:
+ *       --input [idl/IPrintable_DBoolean.json5]
+ *  2. jinja2 template for abstract facet .hpp file:
+ *       [iface_facet_any.hpp.j2]
+ *  3. idl for facet methods
+ *       [idl/IPrintable_DBoolean.json5]
+**/
+
+#include "boolean/IPrintable_DBoolean.hpp"
+
+namespace xo {
+    namespace scm {
+        auto
+        IPrintable_DBoolean::pretty(const DBoolean & self, const ppindentinfo & ppii) -> bool
+        {
+            return self.pretty(ppii);
+        }
+
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end IPrintable_DBoolean.cpp */

src/object2/object2_register_facets.cpp

@@ -7,11 +7,13 @@
 
 #include <xo/object2/array/IGCObject_DArray.hpp>
 #include <xo/object2/list/IGCObject_DList.hpp>
+#include <xo/object2/boolean/IGCObject_DBoolean.hpp>
 #include <xo/object2/number/IGCObject_DFloat.hpp>
 #include <xo/object2/number/IGCObject_DInteger.hpp>
 #include <xo/object2/string/IGCObject_DString.hpp>
 
 #include <xo/object2/list/IPrintable_DList.hpp>
+#include <xo/object2/boolean/IPrintable_DBoolean.hpp>
 #include <xo/object2/number/IPrintable_DFloat.hpp>
 #include <xo/object2/number/IPrintable_DInteger.hpp>
 #include <xo/object2/string/IPrintable_DString.hpp>
@@ -29,9 +31,11 @@ namespace xo {
     using xo::mm::AAllocator;
     using xo::mm::AGCObject;
     using xo::scm::DList;
+    using xo::scm::DBoolean;
     using xo::scm::DFloat;
     using xo::scm::DString;
     using xo::scm::DArray;
+    using xo::facet::DVariantPlaceholder;
     using xo::facet::FacetRegistry;
     using xo::facet::typeseq;
 
@@ -45,6 +49,9 @@ namespace xo {
             FacetRegistry::register_impl<APrintable, DList>();
             FacetRegistry::register_impl<ASequence, DList>();
 
+            FacetRegistry::register_impl<AGCObject, DBoolean>();
+            FacetRegistry::register_impl<APrintable, DBoolean>();
+
             FacetRegistry::register_impl<AGCObject, DFloat>();
             FacetRegistry::register_impl<APrintable, DFloat>();
 
@@ -57,7 +64,10 @@ namespace xo {
             FacetRegistry::register_impl<AGCObject, DArray>();
             FacetRegistry::register_impl<ASequence, DArray>();
 
+            log && log(xtag("DVariantPlaceholder.tseq", typeseq::id<DVariantPlaceholder>()));
+
             log && log(xtag("DList.tseq", typeseq::id<DList>()));
+            log && log(xtag("DBoolean.tseq", typeseq::id<DFloat>()));
             log && log(xtag("DFloat.tseq", typeseq::id<DFloat>()));
             log && log(xtag("DInteger.tseq", typeseq::id<DInteger>()));
             log && log(xtag("DString.tseq", typeseq::id<DString>()));

src/object2/object2_register_types.cpp

@@ -5,6 +5,7 @@
 
 #include "object2_register_types.hpp"
 
+#include "boolean/IGCObject_DBoolean.hpp"
 #include "number/IGCObject_DFloat.hpp"
 #include "number/IGCObject_DInteger.hpp"
 #include "string/IGCObject_DString.hpp"
@@ -33,6 +34,8 @@ namespace xo {
 
             bool ok = true;
 
+            ok &= gc.install_type(impl_for<AGCObject, DBoolean>());
+
             ok &= gc.install_type(impl_for<AGCObject, DFloat>());
 
             ok &= gc.install_type(impl_for<AGCObject, DInteger>());