//     Copyright 2021, Kay Hayen, mailto:kay.hayen@gmail.com
//
//     Part of "Nuitka", an optimizing Python compiler that is compatible and
//     integrates with CPython, but also works on its own.
//
//     Licensed under the Apache License, Version 2.0 (the "License");
//     you may not use this file except in compliance with the License.
//     You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//     Unless required by applicable law or agreed to in writing, software
//     distributed under the License is distributed on an "AS IS" BASIS,
//     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//     See the License for the specific language governing permissions and
//     limitations under the License.
//
#ifndef __NUITKA_UNFREEZING_H__
#define __NUITKA_UNFREEZING_H__

/* Modes for loading modules, can be compiled, external shared library, or
 * bytecode. */
#define NUITKA_COMPILED_MODULE 0
#define NUITKA_SHLIB_FLAG 1
#define NUITKA_PACKAGE_FLAG 2
#define NUITKA_BYTECODE_FLAG 4

#define NUITKA_ABORT_MODULE_FLAG 8

struct Nuitka_MetaPathBasedLoaderEntry;

typedef PyObject *(*module_initfunc)(PyObject *module, struct Nuitka_MetaPathBasedLoaderEntry const *module_entry);

struct Nuitka_MetaPathBasedLoaderEntry {
    /* Full module name, including package name. */
    char const *name;

    /* Entry function if compiled module, otherwise NULL. */
    module_initfunc python_initfunc;

    /* For bytecode modules, start and size inside the constants blob. */
    int bytecode_index;
    int bytecode_size;

    /* Flags: Indicators if this is compiled, bytecode or shared library. */
    int flags;
};

/* For embedded modules, register the meta path based loader. Used by main
 * program/package only.
 */
extern void registerMetaPathBasedUnfreezer(struct Nuitka_MetaPathBasedLoaderEntry *loader_entries,
                                           unsigned char **bytecode_data);

/* Create a loader object responsible for a package. */
extern PyObject *Nuitka_Loader_New(struct Nuitka_MetaPathBasedLoaderEntry const *entry);

#endif
