forked from xuos/xiuos
479 lines
12 KiB
C
479 lines
12 KiB
C
/*
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* Copyright (c) 2022 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file jerry_main.c
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* @brief support jerryscript
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* @version 1.0
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* @author AIIT XUOS Lab
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* @date 2023.08.07
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*/
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#include <transform.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "jerryscript.h"
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#include "jerryscript-ext/debugger.h"
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#include "jerryscript-ext/handler.h"
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#include "jerryscript-port.h"
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#include "setjmp.h"
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/* Maximum command line arguments number.*/
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#define JERRY_MAX_COMMAND_LINE_ARGS (16)
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/*Standalone Jerry exit codes.*/
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#define JERRY_STANDALONE_EXIT_CODE_OK (0)
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#define JERRY_STANDALONE_EXIT_CODE_FAIL (1)
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/* Context size of the SYNTAX_ERROR */
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#define SYNTAX_ERROR_CONTEXT_SIZE 2
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static void print_help(char *name)
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{
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printf ("Usage: %s [OPTION]... [FILE]...\n"
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"\n"
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"Options:\n"
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" --log-level [0-3]\n"
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" --mem-stats\n"
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" --mem-stats-separate\n"
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" --show-opcodes\n"
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" --start-debug-server\n"
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" --debug-server-port [port]\n"
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"\n",
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name);
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}
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/**
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* Read source code into buffer.
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*
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* Returned value must be freed with jmem_heap_free_block if it's not NULL.
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* @return NULL, if read or allocation has failed
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* pointer to the allocated memory block, otherwise
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*/
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static const uint8_t *read_file (const char *file_name, size_t *out_size_p)
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{
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FILE *file = fopen (file_name, "r");
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if (file == NULL)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: cannot open file: %s\n", file_name);
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return NULL;
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}
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int fseek_status = fseek (file, 0, SEEK_END);
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if (fseek_status != 0)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Failed to seek (error: %d)\n", fseek_status);
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fclose (file);
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return NULL;
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}
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long script_len = ftell (file);
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if (script_len < 0)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Failed to get the file size(error %ld)\n", script_len);
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fclose (file);
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return NULL;
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}
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rewind (file);
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uint8_t *buffer = (uint8_t *) malloc (script_len);
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if (buffer == NULL)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Out of memory error\n");
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fclose (file);
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return NULL;
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}
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size_t bytes_read = fread (buffer, 1u, script_len, file);
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if (!bytes_read || bytes_read != script_len)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: failed to read file: %s\n", file_name);
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free ((void*) buffer);
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fclose (file);
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return NULL;
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}
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fclose (file);
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*out_size_p = bytes_read;
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return (const uint8_t *) buffer;
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}
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/**
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* Convert string into unsigned integer
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*
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* @return converted number
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*/
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static uint32_t str_to_uint (const char *num_str_p) /**< string to convert */
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{
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uint32_t result = 0;
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while (*num_str_p != '\0')
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{
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result *= 10;
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result += (uint32_t) (*num_str_p - '0');
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num_str_p++;
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}
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return result;
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}
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/**
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* Print error value
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*/
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static void print_unhandled_exception (jerry_value_t error_value, const jerry_char_t *source_p)
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{
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error_value = jerry_get_value_from_error (error_value, false);
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jerry_value_t err_str_val = jerry_value_to_string (error_value);
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jerry_size_t err_str_size = jerry_get_string_size (err_str_val);
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jerry_char_t err_str_buf[256];
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jerry_release_value (error_value);
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if (err_str_size >= 256)
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{
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const char msg[] = "[Error message too long]";
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err_str_size = sizeof (msg) / sizeof (char) - 1;
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memcpy (err_str_buf, msg, err_str_size);
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}
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else
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{
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jerry_size_t sz = jerry_string_to_char_buffer (err_str_val, err_str_buf, err_str_size);
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err_str_buf[err_str_size] = 0;
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if (jerry_is_feature_enabled (JERRY_FEATURE_ERROR_MESSAGES)
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&& jerry_get_error_type (error_value) == JERRY_ERROR_SYNTAX)
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{
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uint32_t err_line = 0;
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uint32_t err_col = 0;
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/* 1. parse column and line information */
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for (uint32_t i = 0; i < sz; i++)
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{
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if (!strncmp ((char *) (err_str_buf + i), "[line: ", 7))
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{
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i += 7;
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char num_str[8];
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uint32_t j = 0;
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while (i < sz && err_str_buf[i] != ',')
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{
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num_str[j] = (char) err_str_buf[i];
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j++;
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i++;
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}
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num_str[j] = '\0';
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err_line = str_to_uint (num_str);
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if (strncmp ((char *) (err_str_buf + i), ", column: ", 10))
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{
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break; /* wrong position info format */
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}
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i += 10;
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j = 0;
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while (i < sz && err_str_buf[i] != ']')
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{
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num_str[j] = (char) err_str_buf[i];
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j++;
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i++;
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}
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num_str[j] = '\0';
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err_col = str_to_uint (num_str);
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break;
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}
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} /* for */
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if (err_line != 0 && err_col != 0)
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{
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uint32_t curr_line = 1;
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bool is_printing_context = false;
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uint32_t pos = 0;
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/* 2. seek and print */
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while (source_p[pos] != '\0')
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{
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if (source_p[pos] == '\n')
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{
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curr_line++;
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}
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if (err_line < SYNTAX_ERROR_CONTEXT_SIZE
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|| (err_line >= curr_line
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&& (err_line - curr_line) <= SYNTAX_ERROR_CONTEXT_SIZE))
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{
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/* context must be printed */
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is_printing_context = true;
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}
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if (curr_line > err_line)
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{
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break;
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}
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if (is_printing_context)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "%c", source_p[pos]);
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}
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pos++;
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}
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "\n");
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while (--err_col)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "~");
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}
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "^\n");
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}
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}
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}
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Script Error: %s\n", err_str_buf);
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jerry_release_value (err_str_val);
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}
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/**
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* Register a JavaScript function in the global object.
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*/
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static void register_js_function (const char *name_p,jerry_external_handler_t handler_p)
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{
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jerry_value_t result_val = jerryx_handler_register_global ((const jerry_char_t *) name_p, handler_p);
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if (jerry_value_is_error (result_val))
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{
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jerry_port_log (JERRY_LOG_LEVEL_WARNING, "Warning: failed to register '%s' method.", name_p);
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}
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jerry_release_value (result_val);
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}
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void js_add_function(const jerry_value_t obj, const char *name,
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jerry_external_handler_t func)
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{
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jerry_value_t str = jerry_create_string((const jerry_char_t *)name);
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jerry_value_t jfunc = jerry_create_external_function(func);
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jerry_set_property(obj, str, jfunc);
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jerry_release_value(str);
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jerry_release_value(jfunc);
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}
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void js_set_property(const jerry_value_t obj, const char *name,
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const jerry_value_t prop)
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{
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jerry_value_t str = jerry_create_string((const jerry_char_t *)name);
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jerry_set_property(obj, str, prop);
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jerry_release_value (str);
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}
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int js_console_init(void)
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{
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jerry_value_t console = jerry_create_object();
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jerry_value_t global_obj = jerry_get_global_object();
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js_add_function(console, "log", jerryx_handler_print);
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js_set_property(global_obj, "console", console);
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jerry_release_value(global_obj);
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jerry_release_value(console);
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return 0;
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}
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static jerry_log_level_t jerry_log_level = JERRY_LOG_LEVEL_ERROR;
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int jerrytest(int argc, char *argv[])
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{
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if (argc > JERRY_MAX_COMMAND_LINE_ARGS)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR,
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"Too many command line arguments. Current maximum is %d\n",
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JERRY_MAX_COMMAND_LINE_ARGS);
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return JERRY_STANDALONE_EXIT_CODE_FAIL;
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}
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const char *file_names[JERRY_MAX_COMMAND_LINE_ARGS];
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int i;
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int files_counter = 0;
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bool start_debug_server = false;
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uint16_t debug_port = 5001;
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jerry_init_flag_t flags = JERRY_INIT_EMPTY;
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for (i = 1; i < argc; i++)
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{
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if (!strcmp ("-h", argv[i]) || !strcmp ("--help", argv[i]))
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{
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print_help (argv[0]);
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return JERRY_STANDALONE_EXIT_CODE_OK;
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}
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else if (!strcmp ("--mem-stats", argv[i]))
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{
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flags |= JERRY_INIT_MEM_STATS;
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jerry_log_level = JERRY_LOG_LEVEL_DEBUG;
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}
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else if (!strcmp ("--mem-stats-separate", argv[i]))
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{
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flags |= JERRY_INIT_MEM_STATS_SEPARATE;
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jerry_log_level = JERRY_LOG_LEVEL_DEBUG;
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}
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else if (!strcmp ("--show-opcodes", argv[i]))
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{
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flags |= JERRY_INIT_SHOW_OPCODES | JERRY_INIT_SHOW_REGEXP_OPCODES;
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jerry_log_level = JERRY_LOG_LEVEL_DEBUG;
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}
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else if (!strcmp ("--log-level", argv[i]))
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{
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if (++i < argc && strlen (argv[i]) == 1 && argv[i][0] >='0' && argv[i][0] <= '3')
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{
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jerry_log_level = argv[i][0] - '0';
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}
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else
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: wrong format or invalid argument\n");
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return JERRY_STANDALONE_EXIT_CODE_FAIL;
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}
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}
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else if (!strcmp ("--start-debug-server", argv[i]))
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{
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start_debug_server = true;
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}
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else if (!strcmp ("--debug-server-port", argv[i]))
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{
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if (++i < argc)
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{
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debug_port = str_to_uint (argv[i]);
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}
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else
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: wrong format or invalid argument\n");
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return JERRY_STANDALONE_EXIT_CODE_FAIL;
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}
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}
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else
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{
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file_names[files_counter++] = argv[i];
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}
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}
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jerry_init (flags);
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if (start_debug_server)
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{
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jerryx_debugger_after_connect (jerryx_debugger_tcp_create (debug_port)
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&& jerryx_debugger_ws_create ());
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}
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register_js_function ("gc", jerryx_handler_gc);
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register_js_function ("print", jerryx_handler_print);
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js_console_init();
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jerry_value_t ret_value = jerry_create_undefined ();
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if (files_counter == 0)
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{
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printf ("running a hello world demo:");
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const jerry_char_t script[] = "var str = 'Hello World'; print(str + ' from JerryScript.')";
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ret_value = jerry_parse (NULL, 0, script, sizeof (script) - 1, JERRY_PARSE_NO_OPTS);
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if (!jerry_value_is_error (ret_value))
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{
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ret_value = jerry_run (ret_value);
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}
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}
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else
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{
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for (i = 0; i < files_counter; i++)
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{
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size_t source_size;
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const jerry_char_t *source_p = read_file (file_names[i], &source_size);
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if (source_p == NULL)
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{
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jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Source file load error\n");
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return JERRY_STANDALONE_EXIT_CODE_FAIL;
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}
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ret_value = jerry_parse ((jerry_char_t *) file_names[i],
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strlen (file_names[i]),
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source_p,
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source_size,
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JERRY_PARSE_NO_OPTS);
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if (!jerry_value_is_error (ret_value))
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{
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jerry_value_t func_val = ret_value;
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ret_value = jerry_run (func_val);
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jerry_release_value (func_val);
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}
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if (jerry_value_is_error (ret_value))
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{
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print_unhandled_exception (ret_value, source_p);
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free ((void*) source_p);
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break;
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}
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free ((void*) source_p);
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jerry_release_value (ret_value);
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ret_value = jerry_create_undefined ();
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}
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}
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int ret_code = JERRY_STANDALONE_EXIT_CODE_OK;
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if (jerry_value_is_error (ret_value))
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{
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ret_code = JERRY_STANDALONE_EXIT_CODE_FAIL;
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}
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jerry_release_value (ret_value);
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ret_value = jerry_run_all_enqueued_jobs ();
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if (jerry_value_is_error (ret_value))
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{
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ret_code = JERRY_STANDALONE_EXIT_CODE_FAIL;
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}
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jerry_release_value (ret_value);
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jerry_cleanup ();
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return ret_code;
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}
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PRIV_SHELL_CMD_FUNCTION(jerrytest, jerryscript test sample, PRIV_SHELL_CMD_MAIN_ATTR);
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