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hello-embed.c

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  • hello-embed.c 2.37 KiB
    /*
     * This file is part of the Micro Python project, http://micropython.org/
     *
     * The MIT License (MIT)
     *
     * Copyright (c) 2016 Paul Sokolovsky
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy
     * of this software and associated documentation files (the "Software"), to deal
     * in the Software without restriction, including without limitation the rights
     * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     * copies of the Software, and to permit persons to whom the Software is
     * furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in
     * all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     * THE SOFTWARE.
     */
    
    #include <string.h>
    #include <stdio.h>
    #include <stdlib.h>
    
    #include "py/compile.h"
    #include "py/runtime.h"
    #include "py/gc.h"
    #include "py/stackctrl.h"
    
    static char heap[16384];
    
    mp_obj_t execute_from_str(const char *str) {
        nlr_buf_t nlr;
        if (nlr_push(&nlr) == 0) {
            mp_lexer_t *lex = mp_lexer_new_from_str_len(0/*MP_QSTR_*/, str, strlen(str), false);
            mp_parse_tree_t pt = mp_parse(lex, MP_PARSE_FILE_INPUT);
            mp_obj_t module_fun = mp_compile(&pt, lex->source_name, MP_EMIT_OPT_NONE, false);
            mp_call_function_0(module_fun);
            nlr_pop();
            return 0;
        } else {
            // uncaught exception
            return (mp_obj_t)nlr.ret_val;
        }
    }
    
    int main() {
        // Initialized stack limit
        mp_stack_set_limit(40000 * (BYTES_PER_WORD / 4));
        // Initialize heap
        gc_init(heap, heap + sizeof(heap));
        // Initialize interpreter
        mp_init();
    
        const char str[] = "print('Hello world of easy embedding!')";
        if (execute_from_str(str)) {
            printf("Error\n");
        }
    }
    
    uint mp_import_stat(const char *path) {
        return MP_IMPORT_STAT_NO_EXIST;
    }