initial implementation

src/pyprintjson/CMakeLists.txt

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+# xo_pyprintjson/src/pyprintjson/CMakeLists.txt
+
+set(SELF_LIB pyprintjson)
+set(SELF_SRCS pyprintjson.cpp)
+
+xo_pybind11_library(${SELF_LIB} ${PROJECT_NAME}Targets ${SELF_SRCS})
+
+xo_pybind11_dependency(${SELF_LIB} printjson)

src/pyprintjson/EXAMPLES

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+import pyprintjson
+pj=pyprintjson.PrintJson()

src/pyprintjson/pyprintjson.cpp

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+/* @file pyprintjson.cpp */
+
+// note: need pyreflect/ here bc pyreflect.hpp is generated, located in build directory
+#include "pyprintjson.hpp"
+#include "xo/pyreflect/pyreflect.hpp"
+
+#include "xo/printjson/PrintJson.hpp"
+#include "xo/reflect/TaggedRcptr.hpp"
+//#include "reflect/SelfTagging.hpp"
+//#include "refcnt/Refcounted.hpp"
+//#include "refcnt/Unowned.hpp"
+#include "xo/pyutil/pyutil.hpp"
+//#include <pybind11/pybind11.h>
+//#include <pybind11/stl.h>
+//#include <pybind11/chrono.h>
+//#include <pybind11/operators.h>
+
+namespace xo {
+    namespace py = pybind11;
+
+    namespace json {
+        using xo::reflect::SelfTagging;
+        using xo::reflect::TaggedRcptr;
+        using xo::ref::rp;
+        using xo::ref::unowned_ptr;
+
+        PYBIND11_MODULE(PYPRINTJSON_MODULE_NAME(), m) {
+            PYREFLECT_IMPORT_MODULE();
+
+            py::class_<PrintJson, rp<PrintJson>>(m, "PrintJson")
+                .def_static("instance", &PrintJsonSingleton::instance)
+                .def("print",
+                     [](PrintJson & pj, TaggedRcptr p)
+                         {
+                             pj.print_tp(p, &std::cout); std::cout << "\n";
+                         },
+                     py::arg("value"))
+                .def("print",
+                     [](PrintJson & pj, rp<SelfTagging> const & p)
+                         {
+                             pj.print_obj(p, &std::cout); std::cout << "\n";
+                         },
+                     py::arg("value"));
+
+            //m.def("print_json", [](){ return PrintJsonSingleton::instance_ptr(); });
+        } /*pyprintjson*/
+    } /*namespace json*/
+} /*namespace xo*/
+
+/* end pyprintjson.cpp */

src/pyprintjson/pyprintjson.hpp.in

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+/* @file pyprintjson.hpp
+ *
+ * automatically generated from src/pyprintjson/pyprintjson.hpp.in
+ * see src/pyprintjson/CMakeLists.txt
+ */
+
+/* python requires module name = library name
+ * example:
+ *   PYBIND11_MODULE(PYPRINTJSON_MODULE_NAME(), m) { ... }
+ */
+#define PYPRINTJSON_MODULE_NAME() @SELF_LIB@
+
+/* example:
+ *   py::module_::import(PYPRINTJSON_MODULE_NAME_STR)
+ */
+#define PYPRINTJSON_MODULE_NAME_STR "@SELF_LIB@"
+
+/* example:
+ *   PYPRINTJSON_IMPORT_MODULE()
+ * replaces
+ *   py::module_::import("pyprintjson")
+ */
+#define PYPRINTJSON_IMPORT_MODULE() py::module_::import("@SELF_LIB@")
+
+/* end pyprintjson.hpp */