/* @file pyjit.cpp */

#include "pyjit.hpp"
#include "xo/pyexpression/pyexpression.hpp"
#include "xo/jit/Jit.hpp"
#include "xo/pyutil/pyutil.hpp"
#include <pybind11/stl.h>

namespace xo {
    namespace jit {
        using xo::ast::Expression;
        using xo::ref::rp;
        using xo::ref::unowned_ptr;
        namespace py = pybind11;

        PYBIND11_MODULE(XO_PYJIT_MODULE_NAME(), m) {
            // e.g. for xo::ast::Expression
            XO_PYEXPRESSION_IMPORT_MODULE(); // py::module_::import("pyexpression");

            m.doc() = "pybind11 plugin for xo-jit";

            py::class_<Jit, rp<Jit>>(m, "Jit")
                .def_static("make", &Jit::make,
                            py::doc("create Jit instance. Not threadsafe,"
                                    " but does not share resources with any other Jit instance"))

                .def("codegen",
                     [](Jit & jit, const rp<Expression> & expr) {
                         return jit.codegen(expr.borrow());
                     },
                     py::arg("x"),
                     py::doc("generate llvm (IR) code for Expression x"),
                     /* we're assuming llvm-generated code lives for as long as the Jit
                      * instance that created it.
                      *
                      * RC 14jun2024 - I think this is true modulo use of llvm resource trackers.
                      */
                     py::return_value_policy::reference_internal)
                ;

            py::class_<llvm::Value,
                       unowned_ptr<llvm::Value>>(m, "llvm_Value")
                .def("print",
                     [](llvm::Value & x) {
                         std::string buf;
                         llvm::raw_string_ostream ss(buf);
                         x.print(ss);
                         return buf;
                     })
//                .def("__repr__",
//                     &Jit::display_string)
                ;

        }


    } /*namespace jit*/
} /*namespace xo*/


/* end pyjit.cpp */