int
main (void)
{
  jerry_init (JERRY_INIT_EMPTY);

  if (!jerry_is_feature_enabled (JERRY_FEATURE_TYPEDARRAY))
  {
    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "ArrayBuffer is disabled!\n");
    jerry_cleanup ();
    return 0;
  }

  jerry_value_t function_val = jerry_create_external_function (assert_handler);
  register_js_value ("assert", function_val);
  jerry_release_value (function_val);

  /* Test array buffer queries */
  {
    const char *eval_arraybuffer_src_p = "new ArrayBuffer (10)";
    jerry_value_t eval_arraybuffer = jerry_eval ((jerry_char_t *) eval_arraybuffer_src_p,
                                                 strlen (eval_arraybuffer_src_p),
                                                 true);
    TEST_ASSERT (!jerry_value_is_error (eval_arraybuffer));
    TEST_ASSERT (jerry_value_is_arraybuffer (eval_arraybuffer));
    TEST_ASSERT (jerry_get_arraybuffer_byte_length (eval_arraybuffer) == 10);
    jerry_release_value (eval_arraybuffer);
  }

  /* Test array buffer creation */
  {
    const uint32_t length = 15;
    jerry_value_t arraybuffer = jerry_create_arraybuffer (length);
    TEST_ASSERT (!jerry_value_is_error (arraybuffer));
    TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == length);
    jerry_release_value (arraybuffer);
  }

  /* Test array buffer read operations */
  for (uint8_t i = 0; i < 15; i++)
  {
    test_read_with_offset (i);
  }

  /* Test zero length ArrayBuffer read */
  {
    const uint32_t length = 0;
    jerry_value_t arraybuffer = jerry_create_arraybuffer (length);
    TEST_ASSERT (!jerry_value_is_error (arraybuffer));
    TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == length);

    uint8_t data[20];
    memset (data, 11, 20);

    jerry_length_t bytes_read = jerry_arraybuffer_read (arraybuffer, 0, data, 20);
    TEST_ASSERT (bytes_read == 0);

    for (int i = 0; i < 20; i++)
    {
      TEST_ASSERT (data[i] == 11);
    }

    jerry_release_value (arraybuffer);
  }

  /* Test array buffer write operations */
  for (uint8_t i = 0; i < 15; i++)
  {
    test_write_with_offset (i);
  }

  /* Test zero length ArrayBuffer write */
  {
    const uint32_t length = 0;
    jerry_value_t arraybuffer = jerry_create_arraybuffer (length);
    TEST_ASSERT (!jerry_value_is_error (arraybuffer));
    TEST_ASSERT (jerry_value_is_arraybuffer (arraybuffer));
    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arraybuffer) == length);

    uint8_t data[20];
    memset (data, 11, 20);

    jerry_length_t bytes_written = jerry_arraybuffer_write (arraybuffer, 0, data, 20);
    TEST_ASSERT (bytes_written == 0);

    jerry_release_value (arraybuffer);
  }

  /* Test ArrayBuffer with buffer allocated externally */
  {
    const uint32_t buffer_size = 15;
    const uint8_t base_value = 51;

    uint8_t buffer_p[buffer_size];
    memset (buffer_p, base_value, buffer_size);

    jerry_value_t arrayb = jerry_create_arraybuffer_external (buffer_size, buffer_p, test_free_cb);
    uint8_t new_value = 123;
    jerry_length_t copied = jerry_arraybuffer_write (arrayb, 0, &new_value, 1);
    TEST_ASSERT (copied == 1);
    TEST_ASSERT (buffer_p[0] == new_value);
    TEST_ASSERT (jerry_get_arraybuffer_byte_length (arrayb) == buffer_size);

    for (uint32_t i = 1; i < buffer_size; i++)
    {
      TEST_ASSERT (buffer_p[i] == base_value);
    }

    uint8_t test_buffer[buffer_size];
    jerry_length_t read = jerry_arraybuffer_read (arrayb, 0, test_buffer, buffer_size);
    TEST_ASSERT (read == buffer_size);
    TEST_ASSERT (test_buffer[0] == new_value);

    for (uint32_t i = 1; i < buffer_size; i++)
    {
      TEST_ASSERT (test_buffer[i] == base_value);
    }

    TEST_ASSERT (jerry_value_is_arraybuffer (arrayb));
    jerry_release_value (arrayb);
  }

  /* Test ArrayBuffer external memory map/unmap */
  {
    const uint32_t buffer_size = 20;
    uint8_t buffer_p[buffer_size];
    {
      jerry_value_t input_buffer = jerry_create_arraybuffer_external (buffer_size, buffer_p, NULL);
      register_js_value ("input_buffer", input_buffer);
      jerry_release_value (input_buffer);
    }

    const char *eval_arraybuffer_src_p = (
      "var array = new Uint8Array(input_buffer);"
      "for (var i = 0; i < array.length; i++)"
      "{"
      "  array[i] = i * 2;"
      "};"
      "array.buffer");
    jerry_value_t buffer = jerry_eval ((jerry_char_t *) eval_arraybuffer_src_p,
                                        strlen (eval_arraybuffer_src_p),
                                        true);

    TEST_ASSERT (!jerry_value_is_error (buffer));
    TEST_ASSERT (jerry_value_is_arraybuffer (buffer));
    TEST_ASSERT (jerry_get_arraybuffer_byte_length (buffer) == 20);

    uint8_t *const data = jerry_get_arraybuffer_pointer (buffer);

    /* test memory read */
    for (int i = 0; i < 20; i++)
    {
      TEST_ASSERT (data[i] == (uint8_t) (i * 2));
    }

    /* "upload" new data */
    double sum = 0;
    for (int i = 0; i < 20; i++)
    {
      data[i] = (uint8_t)(i * 3);
      sum += data[i];
    }

    jerry_release_value (buffer);

    const char *eval_test_arraybuffer_p = (
      "var sum = 0;"
      "for (var i = 0; i < array.length; i++)"
      "{"
      "  var expected = i * 3;"
      "  assert(array[i] == expected, 'Array at index ' + i + ' was: ' + array[i] + ' should be: ' + expected);"
      "  sum += array[i]"
      "};"
      "sum");
    jerry_value_t res = jerry_eval ((jerry_char_t *) eval_test_arraybuffer_p,
                                    strlen (eval_test_arraybuffer_p),
                                    true);
    TEST_ASSERT (jerry_value_is_number (res));
    TEST_ASSERT (jerry_get_number_value (res) == sum);
    jerry_release_value (res);

    jerry_release_value (buffer);
  }

  /* Test ArrayBuffer external with invalid arguments */
  {
    jerry_value_t input_buffer = jerry_create_arraybuffer_external (0, NULL, NULL);
    TEST_ASSERT (jerry_value_is_error (input_buffer));
    TEST_ASSERT (jerry_get_error_type (input_buffer) == JERRY_ERROR_RANGE);
    jerry_release_value (input_buffer);
  }

  jerry_cleanup ();

  TEST_ASSERT (callback_called == true);

  return 0;
} /* main */
Exemple #2
0
/**
 * Print error value
 */
static void
print_unhandled_exception (jerry_value_t error_value, /**< error value */
                           const jerry_char_t *source_p) /**< source_p */
{
  assert (jerry_value_has_error_flag (error_value));

  error_value = jerry_get_value_without_error_flag (error_value);
  jerry_value_t err_str_val = jerry_value_to_string (error_value);
  jerry_size_t err_str_size = jerry_get_string_size (err_str_val);
  jerry_char_t err_str_buf[256];

  jerry_release_value (error_value);

  if (err_str_size >= 256)
  {
    const char msg[] = "[Error message too long]";
    err_str_size = sizeof (msg) / sizeof (char) - 1;
    memcpy (err_str_buf, msg, err_str_size);
  }
  else
  {
    jerry_size_t sz = jerry_string_to_char_buffer (err_str_val, err_str_buf, err_str_size);
    assert (sz == err_str_size);
    err_str_buf[err_str_size] = 0;

    if (jerry_is_feature_enabled (JERRY_FEATURE_ERROR_MESSAGES)
        && jerry_get_error_type (error_value) == JERRY_ERROR_SYNTAX)
    {
      unsigned int err_line = 0;
      unsigned int err_col = 0;

      /* 1. parse column and line information */
      for (jerry_size_t i = 0; i < sz; i++)
      {
        if (!strncmp ((char *) (err_str_buf + i), "[line: ", 7))
        {
          i += 7;

          char num_str[8];
          unsigned int j = 0;

          while (i < sz && err_str_buf[i] != ',')
          {
            num_str[j] = (char) err_str_buf[i];
            j++;
            i++;
          }
          num_str[j] = '\0';

          err_line = (unsigned int) strtol (num_str, NULL, 10);

          if (strncmp ((char *) (err_str_buf + i), ", column: ", 10))
          {
            break; /* wrong position info format */
          }

          i += 10;
          j = 0;

          while (i < sz && err_str_buf[i] != ']')
          {
            num_str[j] = (char) err_str_buf[i];
            j++;
            i++;
          }
          num_str[j] = '\0';

          err_col = (unsigned int) strtol (num_str, NULL, 10);
          break;
        }
      } /* for */

      if (err_line != 0 && err_col != 0)
      {
        unsigned int curr_line = 1;

        bool is_printing_context = false;
        unsigned int pos = 0;

        /* 2. seek and print */
        while (source_p[pos] != '\0')
        {
          if (source_p[pos] == '\n')
          {
            curr_line++;
          }

          if (err_line < SYNTAX_ERROR_CONTEXT_SIZE
              || (err_line >= curr_line
                  && (err_line - curr_line) <= SYNTAX_ERROR_CONTEXT_SIZE))
          {
            /* context must be printed */
            is_printing_context = true;
          }

          if (curr_line > err_line)
          {
            break;
          }

          if (is_printing_context)
          {
            jerry_port_log (JERRY_LOG_LEVEL_ERROR, "%c", source_p[pos]);
          }

          pos++;
        }

        jerry_port_log (JERRY_LOG_LEVEL_ERROR, "\n");

        while (--err_col)
        {
          jerry_port_log (JERRY_LOG_LEVEL_ERROR, "~");
        }

        jerry_port_log (JERRY_LOG_LEVEL_ERROR, "^\n");
      }
    }
  }

  jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Script Error: %s\n", err_str_buf);
  jerry_release_value (err_str_val);
} /* print_unhandled_exception */