예제 #1
0
파일: obj.c 프로젝트: Dahsheg/microPython
// helper function to print an exception with traceback
void mp_obj_print_exception(const mp_print_t *print, mp_obj_t exc) {
    if (mp_obj_is_exception_instance(exc)) {
        size_t n, *values;
        mp_obj_exception_get_traceback(exc, &n, &values);
        if (n > 0) {
            assert(n % 3 == 0);
            mp_print_str(print, "Traceback (most recent call last):\n");
            for (int i = n - 3; i >= 0; i -= 3) {
#if MICROPY_ENABLE_SOURCE_LINE
                mp_printf(print, "  File \"%q\", line %d", values[i], (int)values[i + 1]);
#else
                mp_printf(print, "  File \"%q\"", values[i]);
#endif
                // the block name can be NULL if it's unknown
                qstr block = values[i + 2];
                if (block == MP_QSTR_NULL) {
                    mp_print_str(print, "\n");
                } else {
                    mp_printf(print, ", in %q\n", block);
                }
            }
        }
    }
    mp_obj_print_helper(print, exc, PRINT_EXC);
    mp_print_str(print, "\n");
}
예제 #2
0
// Return true if exception (type or instance) is a subclass of given
// exception type.  Assumes exc_type is a subclass of BaseException, as
// defined by mp_obj_is_exception_type(exc_type).
bool mp_obj_exception_match(mp_obj_t exc, mp_const_obj_t exc_type) {
    // if exc is an instance of an exception, then extract and use its type
    if (mp_obj_is_exception_instance(exc)) {
        exc = MP_OBJ_FROM_PTR(mp_obj_get_type(exc));
    }
    return mp_obj_is_subclass_fast(exc, exc_type);
}
예제 #3
0
파일: obj.c 프로젝트: Lothilius/micropython
// helper function to print an exception with traceback
void mp_obj_print_exception(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t exc) {
    if (mp_obj_is_exception_instance(exc)) {
        mp_uint_t n, *values;
        mp_obj_exception_get_traceback(exc, &n, &values);
        if (n > 0) {
            assert(n % 3 == 0);
            print(env, "Traceback (most recent call last):\n");
            for (int i = n - 3; i >= 0; i -= 3) {
#if MICROPY_ENABLE_SOURCE_LINE
                print(env, "  File \"%s\", line %d", qstr_str(values[i]), (int)values[i + 1]);
#else
                print(env, "  File \"%s\"", qstr_str(values[i]));
#endif
                // the block name can be NULL if it's unknown
                qstr block = values[i + 2];
                if (block == MP_QSTR_NULL) {
                    print(env, "\n");
                } else {
                    print(env, ", in %s\n", qstr_str(block));
                }
            }
        }
    }
    mp_obj_print_helper(print, env, exc, PRINT_EXC);
    print(env, "\n");
}
예제 #4
0
파일: main.c 프로젝트: A-L-E-X/micropython
void do_file(const char *file) {
    mp_lexer_t *lex = mp_lexer_new_from_file(file);
    if (lex == NULL) {
        return;
    }

    if (0) {
        // just tokenise
        while (lex->tok_kind != MP_TOKEN_END) {
            mp_lexer_show_token(lex);
            mp_lexer_to_next(lex);
        }
        mp_lexer_free(lex);

    } else {
        // parse
        mp_parse_error_kind_t parse_error_kind;
        mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT, &parse_error_kind);

        if (pn == MP_PARSE_NODE_NULL) {
            // parse error
            mp_parse_show_exception(lex, parse_error_kind);
            mp_lexer_free(lex);
            return;
        }

        mp_lexer_free(lex);

        if (pn != MP_PARSE_NODE_NULL) {
            //printf("----------------\n");
            //mp_parse_node_print(pn, 0);
            //printf("----------------\n");

            // compile
            mp_obj_t module_fun = mp_compile(pn, 0, MP_EMIT_OPT_NONE, false);

            //printf("----------------\n");

            if (mp_obj_is_exception_instance(module_fun)) {
                mp_obj_print_exception(module_fun);
            }
        }
    }
}
예제 #5
0
파일: obj.c 프로젝트: xbe/micropython
// helper function to print an exception with traceback
void mp_obj_print_exception(mp_obj_t exc) {
    if (mp_obj_is_exception_instance(exc)) {
        machine_uint_t n, *values;
        mp_obj_exception_get_traceback(exc, &n, &values);
        if (n > 0) {
            assert(n % 3 == 0);
            printf("Traceback (most recent call last):\n");
            for (int i = n - 3; i >= 0; i -= 3) {
#if MICROPY_ENABLE_SOURCE_LINE
                printf("  File \"%s\", line %d, in %s\n", qstr_str(values[i]), (int)values[i + 1], qstr_str(values[i + 2]));
#else
                printf("  File \"%s\", in %s\n", qstr_str(values[i]), qstr_str(values[i + 2]));
#endif
            }
        }
    }
    mp_obj_print(exc, PRINT_EXC);
    printf("\n");
}
예제 #6
0
파일: main.c 프로젝트: xMoad/bitthunder
void do_str(const char *src) {
    mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
    if (lex == NULL) {
        return;
    }

    mp_parse_error_kind_t parse_error_kind;
    mp_parse_node_t pn = mp_parse(lex, MP_PARSE_SINGLE_INPUT, &parse_error_kind);

    if (pn == MP_PARSE_NODE_NULL) {
        // parse error
        mp_parse_show_exception(lex, parse_error_kind);
        mp_lexer_free(lex);
        return;
    }

    // parse okay
    qstr source_name = mp_lexer_source_name(lex);
    mp_lexer_free(lex);
    mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);

    if (mp_obj_is_exception_instance(module_fun)) {
        // compile error
        mp_obj_print_exception(module_fun);
        return;
    }

    nlr_buf_t nlr;
    if (nlr_push(&nlr) == 0) {
        mp_call_function_0(module_fun);
        nlr_pop();
    } else {
        // uncaught exception
        mp_obj_print_exception((mp_obj_t)nlr.ret_val);
    }
}
예제 #7
0
// parses, compiles and executes the code in the lexer
// frees the lexer before returning
// EXEC_FLAG_PRINT_EOF prints 2 EOF chars: 1 after normal output, 1 after exception output
// EXEC_FLAG_ALLOW_DEBUGGING allows debugging info to be printed after executing the code
// EXEC_FLAG_IS_REPL is used for REPL inputs (flag passed on to mp_compile)
STATIC int parse_compile_execute(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, int exec_flags) {
    int ret = 0;

    mp_parse_error_kind_t parse_error_kind;
    mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
    qstr source_name = mp_lexer_source_name(lex);

    // check for parse error
    if (pn == MP_PARSE_NODE_NULL) {
        if (exec_flags & EXEC_FLAG_PRINT_EOF) {
            stdout_tx_strn("\x04", 1);
        }
        mp_parse_show_exception(lex, parse_error_kind);
        mp_lexer_free(lex);
        goto finish;
    }

    mp_lexer_free(lex);

    mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, exec_flags & EXEC_FLAG_IS_REPL);

    // check for compile error
    if (mp_obj_is_exception_instance(module_fun)) {
        if (exec_flags & EXEC_FLAG_PRINT_EOF) {
            stdout_tx_strn("\x04", 1);
        }
        mp_obj_print_exception(module_fun);
        goto finish;
    }

    // execute code
    nlr_buf_t nlr;
    uint32_t start = HAL_GetTick();
    if (nlr_push(&nlr) == 0) {
        mp_hal_set_interrupt_char(CHAR_CTRL_C); // allow ctrl-C to interrupt us
        mp_call_function_0(module_fun);
        mp_hal_set_interrupt_char(-1); // disable interrupt
        nlr_pop();
        ret = 1;
        if (exec_flags & EXEC_FLAG_PRINT_EOF) {
            stdout_tx_strn("\x04", 1);
        }
    } else {
        // uncaught exception
        // FIXME it could be that an interrupt happens just before we disable it here
        mp_hal_set_interrupt_char(-1); // disable interrupt
        // print EOF after normal output
        if (exec_flags & EXEC_FLAG_PRINT_EOF) {
            stdout_tx_strn("\x04", 1);
        }
        // check for SystemExit
        if (mp_obj_is_subclass_fast(mp_obj_get_type((mp_obj_t)nlr.ret_val), &mp_type_SystemExit)) {
            // at the moment, the value of SystemExit is unused
            ret = PYEXEC_FORCED_EXIT;
        } else {
            mp_obj_print_exception((mp_obj_t)nlr.ret_val);
            ret = 0;
        }
    }

    // display debugging info if wanted
    if ((exec_flags & EXEC_FLAG_ALLOW_DEBUGGING) && repl_display_debugging_info) {
        mp_uint_t ticks = HAL_GetTick() - start; // TODO implement a function that does this properly
        printf("took " UINT_FMT " ms\n", ticks);
        gc_collect();
        // qstr info
        {
            mp_uint_t n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
            qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
            printf("qstr:\n  n_pool=" UINT_FMT "\n  n_qstr=" UINT_FMT "\n  n_str_data_bytes=" UINT_FMT "\n  n_total_bytes=" UINT_FMT "\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
        }

        // GC info
        {
            gc_info_t info;
            gc_info(&info);
            printf("GC:\n");
            printf("  " UINT_FMT " total\n", info.total);
            printf("  " UINT_FMT " : " UINT_FMT "\n", info.used, info.free);
            printf("  1=" UINT_FMT " 2=" UINT_FMT " m=" UINT_FMT "\n", info.num_1block, info.num_2block, info.max_block);
        }
    }

finish:
    if (exec_flags & EXEC_FLAG_PRINT_EOF) {
        stdout_tx_strn("\x04", 1);
    }

    return ret;
}
예제 #8
0
// parses, compiles and executes the code in the lexer
// frees the lexer before returning
bool parse_compile_execute(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
    mp_parse_error_kind_t parse_error_kind;
    mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
    qstr source_name = mp_lexer_source_name(lex);

    if (pn == MP_PARSE_NODE_NULL) {
        // parse error
        mp_parse_show_exception(lex, parse_error_kind);
        mp_lexer_free(lex);
        return false;
    }

    mp_lexer_free(lex);

    mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, is_repl);

    if (mp_obj_is_exception_instance(module_fun)) {
        mp_obj_print_exception(module_fun);
        return false;
    }

    nlr_buf_t nlr;
    bool ret;
    uint32_t start = HAL_GetTick();
    if (nlr_push(&nlr) == 0) {
        usb_vcp_set_interrupt_char(VCP_CHAR_CTRL_C); // allow ctrl-C to interrupt us
        mp_call_function_0(module_fun);
        usb_vcp_set_interrupt_char(VCP_CHAR_NONE); // disable interrupt
        nlr_pop();
        ret = true;
    } else {
        // uncaught exception
        // FIXME it could be that an interrupt happens just before we disable it here
        usb_vcp_set_interrupt_char(VCP_CHAR_NONE); // disable interrupt
        mp_obj_print_exception((mp_obj_t)nlr.ret_val);
        ret = false;
    }

    // display debugging info if wanted
    if (is_repl && repl_display_debugging_info) {
        uint32_t ticks = HAL_GetTick() - start; // TODO implement a function that does this properly
        printf("took %lu ms\n", ticks);
        gc_collect();
        // qstr info
        {
            mp_uint_t n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
            qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
            printf("qstr:\n  n_pool=" UINT_FMT "\n  n_qstr=" UINT_FMT "\n  n_str_data_bytes=" UINT_FMT "\n  n_total_bytes=" UINT_FMT "\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
        }

        // GC info
        {
            gc_info_t info;
            gc_info(&info);
            printf("GC:\n");
            printf("  " UINT_FMT " total\n", info.total);
            printf("  " UINT_FMT " : " UINT_FMT "\n", info.used, info.free);
            printf("  1=" UINT_FMT " 2=" UINT_FMT " m=" UINT_FMT "\n", info.num_1block, info.num_2block, info.max_block);
        }
    }

    return ret;
}