/**
 * The Date.prototype object's 'setMinutes' routine
 *
 * See also:
 *          ECMA-262 v5, 15.9.5.32
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value.
 */
static ecma_value_t
ecma_builtin_date_prototype_set_minutes (ecma_value_t this_arg, /**< this argument */
                                         const ecma_value_t args[], /**< arguments list */
                                         ecma_length_t args_number) /**< number of arguments */
{
  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  /* 1. */
  ECMA_TRY_CATCH (this_time_value, ecma_builtin_date_prototype_get_time (this_arg), ret_value);
  ecma_number_t t = ecma_date_local_time (*ecma_get_number_from_value (this_time_value));

  /* 2. */
  ecma_number_t m = ecma_number_make_nan ();
  ecma_number_t s = ecma_date_sec_from_time (t);
  ecma_number_t milli = ecma_date_ms_from_time (t);
  if (args_number > 0 && !ecma_is_value_undefined (args[0]))
  {
    ECMA_OP_TO_NUMBER_TRY_CATCH (min, args[0], ret_value);
    m = min;

    /* 3. */
    if (args_number > 1 && !ecma_is_value_undefined (args[1]))
    {
      ECMA_OP_TO_NUMBER_TRY_CATCH (sec, args[1], ret_value);
      s = sec;

      /* 4. */
      if (args_number > 2 && !ecma_is_value_undefined (args[2]))
      {
        ECMA_OP_TO_NUMBER_TRY_CATCH (ms, args[2], ret_value);
        milli = ms;
        ECMA_OP_TO_NUMBER_FINALIZE (ms);
      }
      ECMA_OP_TO_NUMBER_FINALIZE (sec);
    }
    ECMA_OP_TO_NUMBER_FINALIZE (min);
  }

  if (ecma_is_value_empty (ret_value))
  {
    /* 5-8. */
    ecma_number_t hour = ecma_date_hour_from_time (t);
    ret_value = ecma_date_set_internal_property (this_arg,
                                                 ecma_date_day (t),
                                                 ecma_date_make_time (hour, m, s, milli),
                                                 ECMA_DATE_LOCAL);
  }
  ECMA_FINALIZE (this_time_value);

  return ret_value;
} /* ecma_builtin_date_prototype_set_minutes */
Пример #2
0
/**
 * ToObject operation.
 *
 * See also:
 *          ECMA-262 v5, 9.9
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
ecma_op_to_object (ecma_value_t value) /**< ecma value */
{
  ecma_check_value_type_is_spec_defined (value);

  if (ecma_is_value_number (value))
  {
    return ecma_op_create_number_object (value);
  }
  else if (ecma_is_value_string (value))
  {
    return ecma_op_create_string_object (&value, 1);
  }
  else if (ecma_is_value_object (value))
  {
    return ecma_copy_value (value);
  }
  else
  {
    if (ecma_is_value_undefined (value)
        || ecma_is_value_null (value))
    {
      return ecma_raise_type_error (ECMA_ERR_MSG (""));
    }
    else
    {
      JERRY_ASSERT (ecma_is_value_boolean (value));

      return ecma_op_create_boolean_object (value);
    }
  }
} /* ecma_op_to_object */
/**
 * The Date.prototype object's 'setUTCSeconds' routine
 *
 * See also:
 *          ECMA-262 v5, 15.9.5.31
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value.
 */
static ecma_value_t
ecma_builtin_date_prototype_set_utc_seconds (ecma_value_t this_arg, /**< this argument */
                                             ecma_value_t sec, /**< second */
                                             ecma_value_t ms) /**< millisecond */
{
  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  /* 1. */
  ECMA_TRY_CATCH (this_time_value, ecma_builtin_date_prototype_get_time (this_arg), ret_value);
  ecma_number_t t = *ecma_get_number_from_value (this_time_value);

  /* 2. */
  ECMA_OP_TO_NUMBER_TRY_CATCH (s, sec, ret_value);

  /* 3. */
  ECMA_OP_TO_NUMBER_TRY_CATCH (milli, ms, ret_value);
  if (ecma_is_value_undefined (ms))
  {
    milli = ecma_date_ms_from_time (t);
  }

  /* 4-7. */
  ecma_number_t hour = ecma_date_hour_from_time (t);
  ecma_number_t min = ecma_date_min_from_time (t);
  ret_value = ecma_date_set_internal_property (this_arg,
                                               ecma_date_day (t),
                                               ecma_date_make_time (hour, min, s, milli),
                                               ECMA_DATE_UTC);

  ECMA_OP_TO_NUMBER_FINALIZE (milli);
  ECMA_OP_TO_NUMBER_FINALIZE (s);
  ECMA_FINALIZE (this_time_value);

  return ret_value;
} /* ecma_builtin_date_prototype_set_utc_seconds */
/**
 * Relation opcode handler.
 *
 * See also: ECMA-262 v5, 11.8.1, 11.8.2, 11.8.3, 11.8.4
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
opfunc_relation (ecma_value_t left_value, /**< left value */
                 ecma_value_t right_value, /**< right value */
                 bool left_first, /**< 'LeftFirst' flag */
                 bool is_invert) /**< is invert */
{
  JERRY_ASSERT (!ECMA_IS_VALUE_ERROR (left_value)
                && !ECMA_IS_VALUE_ERROR (right_value));

  ecma_value_t ret_value = ecma_op_abstract_relational_compare (left_value, right_value, left_first);

  if (ECMA_IS_VALUE_ERROR (ret_value))
  {
    return ret_value;
  }

  if (ecma_is_value_undefined (ret_value))
  {
    ret_value = ECMA_VALUE_FALSE;
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_boolean (ret_value));

    if (is_invert)
    {
      ret_value = ecma_invert_boolean_value (ret_value);
    }
  }

  return ret_value;
} /* opfunc_relation */
/**
 * The Date.prototype object's 'setUTCMonth' routine
 *
 * See also:
 *          ECMA-262 v5, 15.9.5.39
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value.
 */
static ecma_value_t
ecma_builtin_date_prototype_set_utc_month (ecma_value_t this_arg, /**< this argument */
                                           ecma_value_t month, /**< month */
                                           ecma_value_t date) /**< date */
{
  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  /* 1. */
  ECMA_TRY_CATCH (this_time_value, ecma_builtin_date_prototype_get_time (this_arg), ret_value);
  ecma_number_t t = *ecma_get_number_from_value (this_time_value);

  /* 2. */
  ECMA_OP_TO_NUMBER_TRY_CATCH (m, month, ret_value);

  /* 3. */
  ECMA_OP_TO_NUMBER_TRY_CATCH (dt, date, ret_value);
  if (ecma_is_value_undefined (date))
  {
    dt = ecma_date_date_from_time (t);
  }

  /* 4-7. */
  ecma_number_t year = ecma_date_year_from_time (t);
  ret_value = ecma_date_set_internal_property (this_arg,
                                               ecma_date_make_day (year, m, dt),
                                               ecma_date_time_within_day (t),
                                               ECMA_DATE_UTC);

  ECMA_OP_TO_NUMBER_FINALIZE (dt);
  ECMA_OP_TO_NUMBER_FINALIZE (m);
  ECMA_FINALIZE (this_time_value);

  return ret_value;
} /* ecma_builtin_date_prototype_set_utc_month */
Пример #6
0
/**
 * The Array.prototype's 'toLocaleString' single element operation routine
 *
 * See also:
 *          ECMA-262 v5, 15.4.4.3 steps 6-8 and 10.b-d
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value.
 */
ecma_value_t
ecma_builtin_helper_get_to_locale_string_at_index (ecma_object_t *obj_p, /**< this object */
                                                   uint32_t index) /**< array index */
{
  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
  ecma_string_t *index_string_p = ecma_new_ecma_string_from_uint32 (index);

  ECMA_TRY_CATCH (index_value,
                  ecma_op_object_get (obj_p, index_string_p),
                  ret_value);

  if (ecma_is_value_undefined (index_value) || ecma_is_value_null (index_value))
  {
    ecma_string_t *return_string_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY);
    ret_value = ecma_make_string_value (return_string_p);
  }
  else
  {
    ECMA_TRY_CATCH (index_obj_value,
                    ecma_op_to_object (index_value),
                    ret_value);

    ecma_object_t *index_obj_p = ecma_get_object_from_value (index_obj_value);
    ecma_string_t *locale_string_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_TO_LOCALE_STRING_UL);

    ECMA_TRY_CATCH (to_locale_value,
                    ecma_op_object_get (index_obj_p, locale_string_magic_string_p),
                    ret_value);

    if (ecma_op_is_callable (to_locale_value))
    {
      ecma_object_t *locale_func_obj_p = ecma_get_object_from_value (to_locale_value);
      ECMA_TRY_CATCH (call_value,
                      ecma_op_function_call (locale_func_obj_p,
                                             ecma_make_object_value (index_obj_p),
                                             NULL,
                                             0),
                      ret_value);
      ret_value = ecma_op_to_string (call_value);
      ECMA_FINALIZE (call_value);

    }
    else
    {
      ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
    }

    ECMA_FINALIZE (to_locale_value);

    ecma_deref_ecma_string (locale_string_magic_string_p);

    ECMA_FINALIZE (index_obj_value);
  }

  ECMA_FINALIZE (index_value);

  ecma_deref_ecma_string (index_string_p);

  return ret_value;
} /* ecma_builtin_helper_get_to_locale_string_at_index */
Пример #7
0
/**
 * 'Greater-than' opcode handler.
 *
 * See also: ECMA-262 v5, 11.8.2
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
opfunc_greater_than (ecma_value_t left_value, /**< left value */
                     ecma_value_t right_value) /**< right value */
{
  JERRY_ASSERT (!ECMA_IS_VALUE_ERROR (left_value)
                && !ECMA_IS_VALUE_ERROR (right_value));

  ecma_value_t ret_value = ecma_op_abstract_relational_compare (left_value, right_value, false);

  if (ECMA_IS_VALUE_ERROR (ret_value))
  {
    return ret_value;
  }

  if (ecma_is_value_undefined (ret_value))
  {
    ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_FALSE);
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_boolean (ret_value));
  }

  return ret_value;
} /* opfunc_greater_than */
Пример #8
0
/**
 * ToObject operation.
 *
 * See also:
 *          ECMA-262 v5, 9.9
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
ecma_op_to_object (ecma_value_t value) /**< ecma-value */
{
  ecma_check_value_type_is_spec_defined (value);

  if (ecma_is_value_number (value))
  {
    return ecma_op_create_number_object (value);
  }
  else if (ecma_is_value_string (value))
  {
    return ecma_op_create_string_object (&value, 1);
  }
  else if (ecma_is_value_object (value))
  {
    return ecma_make_normal_completion_value (ecma_copy_value (value, true));
  }
  else
  {
    if (ecma_is_value_undefined (value)
        || ecma_is_value_null (value))
    {
      return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
    }
    else
    {
      JERRY_ASSERT (ecma_is_value_boolean (value));

      return ecma_op_create_boolean_object (value);
    }
  }
} /* ecma_op_to_object */
/**
 * Handle calling [[Call]] of built-in SyntaxError object
 *
 * @return ecma value
 */
ecma_value_t
ecma_builtin_syntax_error_dispatch_call (const ecma_value_t *arguments_list_p, /**< arguments list */
                                         ecma_length_t arguments_list_len) /**< number of arguments */
{
  JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);

  if (arguments_list_len != 0
      && !ecma_is_value_undefined (arguments_list_p[0]))
  {
    ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

    ECMA_TRY_CATCH (msg_str_value,
                    ecma_op_to_string (arguments_list_p[0]),
                    ret_value);

    ecma_string_t *message_string_p = ecma_get_string_from_value (msg_str_value);
    ecma_object_t *new_error_object_p = ecma_new_standard_error_with_message (ECMA_ERROR_SYNTAX,
                                                                              message_string_p);
    ret_value = ecma_make_object_value (new_error_object_p);

    ECMA_FINALIZE (msg_str_value);

    return ret_value;
  }
  else
  {
    ecma_object_t *new_error_object_p = ecma_new_standard_error (ECMA_ERROR_SYNTAX);

    return ecma_make_object_value (new_error_object_p);
  }
} /* ecma_builtin_syntax_error_dispatch_call */
/**
 * Handle calling [[Call]] of a built-in error object
 *
 * @return ecma value
 */
ecma_value_t
ecma_builtin_helper_error_dispatch_call (ecma_standard_error_t error_type, /**< native error type */
                                         const ecma_value_t *arguments_list_p, /**< arguments list */
                                         ecma_length_t arguments_list_len) /**< number of arguments */
{
  JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);

  if (arguments_list_len != 0
      && !ecma_is_value_undefined (arguments_list_p[0]))
  {
    ecma_value_t ret_value = ECMA_VALUE_EMPTY;

    ECMA_TRY_CATCH (msg_str_value,
                    ecma_op_to_string (arguments_list_p[0]),
                    ret_value);

    ecma_string_t *message_string_p = ecma_get_string_from_value (msg_str_value);
    ecma_object_t *new_error_object_p = ecma_new_standard_error_with_message (error_type,
                                                                              message_string_p);
    ret_value = ecma_make_object_value (new_error_object_p);

    ECMA_FINALIZE (msg_str_value);

    return ret_value;
  }
  else
  {
    ecma_object_t *new_error_object_p = ecma_new_standard_error (error_type);

    return ecma_make_object_value (new_error_object_p);
  }
} /* ecma_builtin_helper_error_dispatch_call */
Пример #11
0
/**
 * ToString operation.
 *
 * See also:
 *          ECMA-262 v5, 9.8
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
ecma_op_to_string (ecma_value_t value) /**< ecma-value */
{
  ecma_check_value_type_is_spec_defined (value);

  if (unlikely (ecma_is_value_object (value)))
  {
    ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

    ECMA_TRY_CATCH (prim_value,
                    ecma_op_to_primitive (value, ECMA_PREFERRED_TYPE_STRING),
                    ret_value);

    ret_value = ecma_op_to_string (prim_value);

    ECMA_FINALIZE (prim_value);

    return ret_value;
  }
  else
  {
    ecma_string_t *res_p = NULL;

    if (ecma_is_value_string (value))
    {
      res_p = ecma_get_string_from_value (value);
      res_p = ecma_copy_or_ref_ecma_string (res_p);
    }
    else if (ecma_is_value_number (value))
    {
      ecma_number_t *num_p = ecma_get_number_from_value (value);
      res_p = ecma_new_ecma_string_from_number (*num_p);
    }
    else if (ecma_is_value_undefined (value))
    {
      res_p = ecma_get_magic_string (LIT_MAGIC_STRING_UNDEFINED);
    }
    else if (ecma_is_value_null (value))
    {
      res_p = ecma_get_magic_string (LIT_MAGIC_STRING_NULL);
    }
    else
    {
      JERRY_ASSERT (ecma_is_value_boolean (value));

      if (ecma_is_value_true (value))
      {
        res_p = ecma_get_magic_string (LIT_MAGIC_STRING_TRUE);
      }
      else
      {
        res_p = ecma_get_magic_string (LIT_MAGIC_STRING_FALSE);
      }
    }

    return ecma_make_normal_completion_value (ecma_make_string_value (res_p));
  }
} /* ecma_op_to_string */
Пример #12
0
/**
 * Debug assertion that specified value's type is one of ECMA-defined
 * script-visible types, i.e.: undefined, null, boolean, number, string, object.
 */
void
ecma_check_value_type_is_spec_defined (ecma_value_t value) /**< ecma value */
{
  JERRY_ASSERT (ecma_is_value_undefined (value)
                || ecma_is_value_null (value)
                || ecma_is_value_boolean (value)
                || ecma_is_value_number (value)
                || ecma_is_value_string (value)
                || ecma_is_value_object (value));
} /* ecma_check_value_type_is_spec_defined */
Пример #13
0
/**
 * Run global code
 */
jerry_completion_code_t
vm_run_global (void)
{
  JERRY_ASSERT (__program != NULL);
  JERRY_ASSERT (vm_top_context_p == NULL);

#ifdef MEM_STATS
  interp_mem_stats_print_legend ();
#endif /* MEM_STATS */

  bool is_strict = false;
  vm_instr_counter_t start_pos = 0;

  opcode_scope_code_flags_t scope_flags = vm_get_scope_flags (__program,
                                                              start_pos++);

  if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_STRICT)
  {
    is_strict = true;
  }

  ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
  ecma_object_t *lex_env_p = ecma_get_global_environment ();

  ecma_completion_value_t completion = vm_run_from_pos (__program,
                                                        start_pos,
                                                        ecma_make_object_value (glob_obj_p),
                                                        lex_env_p,
                                                        is_strict,
                                                        false);

  jerry_completion_code_t ret_code;

  if (ecma_is_completion_value_return (completion))
  {
    JERRY_ASSERT (ecma_is_value_undefined (ecma_get_completion_value_value (completion)));

    ret_code = JERRY_COMPLETION_CODE_OK;
  }
  else
  {
    JERRY_ASSERT (ecma_is_completion_value_throw (completion));

    ret_code = JERRY_COMPLETION_CODE_UNHANDLED_EXCEPTION;
  }

  ecma_free_completion_value (completion);

  ecma_deref_object (glob_obj_p);
  ecma_deref_object (lex_env_p);

  JERRY_ASSERT (vm_top_context_p == NULL);

  return ret_code;
} /* vm_run_global */
Пример #14
0
/**
 * ToBoolean operation.
 *
 * See also:
 *          ECMA-262 v5, 9.2
 *
 * @return completion value
 *         Returned value is simple and so need not be freed.
 *         However, ecma_free_completion_value may be called for it, but it is a no-op.
 */
ecma_completion_value_t
ecma_op_to_boolean (ecma_value_t value) /**< ecma-value */
{
  ecma_check_value_type_is_spec_defined (value);

  ecma_simple_value_t ret_value;

  if (ecma_is_value_boolean (value))
  {
    ret_value = (ecma_is_value_true (value) ?
                 ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE);
  }
  else if (ecma_is_value_undefined (value)
           || ecma_is_value_null (value))
  {
    ret_value = ECMA_SIMPLE_VALUE_FALSE;
  }
  else if (ecma_is_value_number (value))
  {
    ecma_number_t *num_p = ecma_get_number_from_value (value);

    if (ecma_number_is_nan (*num_p)
        || ecma_number_is_zero (*num_p))
    {
      ret_value = ECMA_SIMPLE_VALUE_FALSE;
    }
    else
    {
      ret_value = ECMA_SIMPLE_VALUE_TRUE;
    }
  }
  else if (ecma_is_value_string (value))
  {
    ecma_string_t *str_p = ecma_get_string_from_value (value);

    if (ecma_string_get_length (str_p) == 0)
    {
      ret_value = ECMA_SIMPLE_VALUE_FALSE;
    }
    else
    {
      ret_value = ECMA_SIMPLE_VALUE_TRUE;
    }
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_object (value));

    ret_value = ECMA_SIMPLE_VALUE_TRUE;
  }

  return ecma_make_simple_completion_value (ret_value);
} /* ecma_op_to_boolean */
Пример #15
0
/**
 * CheckObjectCoercible operation.
 *
 * See also:
 *          ECMA-262 v5, 9.10
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
ecma_op_check_object_coercible (ecma_value_t value) /**< ecma-value */
{
  ecma_check_value_type_is_spec_defined (value);

  if (ecma_is_value_undefined (value)
      || ecma_is_value_null (value))
  {
    return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
  }
  else
  {
    return ecma_make_empty_completion_value ();
  }
} /* ecma_op_check_object_coercible */
Пример #16
0
/**
 * CheckObjectCoercible operation.
 *
 * See also:
 *          ECMA-262 v5, 9.10
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
ecma_op_check_object_coercible (ecma_value_t value) /**< ecma value */
{
  ecma_check_value_type_is_spec_defined (value);

  if (ecma_is_value_undefined (value)
      || ecma_is_value_null (value))
  {
    return ecma_raise_type_error (ECMA_ERR_MSG (""));
  }
  else
  {
    return ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
  }
} /* ecma_op_check_object_coercible */
/**
 * 'Greater-than-or-equal' opcode handler.
 *
 * See also: ECMA-262 v5, 11.8.4
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
opfunc_greater_or_equal_than (vm_instr_t instr, /**< instruction */
                              vm_frame_ctx_t *frame_ctx_p) /**< interpreter context */
{
  const idx_t dst_var_idx = instr.data.greater_or_equal_than.dst;
  const idx_t left_var_idx = instr.data.greater_or_equal_than.var_left;
  const idx_t right_var_idx = instr.data.greater_or_equal_than.var_right;
//ilyushin
    	printf("greater_or_equal_than,");
  	//ilyushin
  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  ECMA_TRY_CATCH (left_value, get_variable_value (frame_ctx_p, left_var_idx, false), ret_value);
  ECMA_TRY_CATCH (right_value, get_variable_value (frame_ctx_p, right_var_idx, false), ret_value);
  ECMA_TRY_CATCH (compare_result,
                  ecma_op_abstract_relational_compare (left_value, right_value, true),
                  ret_value);

  ecma_simple_value_t res;

  if (ecma_is_value_undefined (compare_result))
  {
    res = ECMA_SIMPLE_VALUE_FALSE;
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_boolean (compare_result));

    if (ecma_is_value_true (compare_result))
    {
      res = ECMA_SIMPLE_VALUE_FALSE;
    }
    else
    {
      res = ECMA_SIMPLE_VALUE_TRUE;
    }
  }

  ret_value = set_variable_value (frame_ctx_p, frame_ctx_p->pos, dst_var_idx, ecma_make_simple_value (res));

  ECMA_FINALIZE (compare_result);
  ECMA_FINALIZE (right_value);
  ECMA_FINALIZE (left_value);

  frame_ctx_p->pos++;

  return ret_value;
} /* opfunc_greater_or_equal_than */
/**
 * The Object object's 'create' routine
 *
 * See also:
 *          ECMA-262 v5, 15.2.3.5
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value.
 */
static ecma_completion_value_t
ecma_builtin_object_object_create (ecma_value_t this_arg, /**< 'this' argument */
                                   ecma_value_t arg1, /**< routine's first argument */
                                   ecma_value_t arg2) /**< routine's second argument */
{
  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  // 1.
  if (!ecma_is_value_object (arg1) && !ecma_is_value_null (arg1))
  {
    ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
  }
  else
  {
    ecma_object_t *obj_p = NULL;

    if (!ecma_is_value_null (arg1))
    {
      obj_p = ecma_get_object_from_value (arg1);
    }
    // 2-3.
    ecma_object_t *result_obj_p = ecma_op_create_object_object_noarg_and_set_prototype (obj_p);

    // 4.
    if (!ecma_is_value_undefined (arg2))
    {
      ECMA_TRY_CATCH (obj,
                      ecma_builtin_object_object_define_properties (this_arg,
                                                                    ecma_make_object_value (result_obj_p),
                                                                    arg2),
                      ret_value);
      ECMA_FINALIZE (obj);
    }

    // 5.
    if (ecma_is_completion_value_empty (ret_value))
    {
      ret_value = ecma_make_normal_completion_value (ecma_copy_value (ecma_make_object_value (result_obj_p),
                                                                      true));
    }

    ecma_deref_object (result_obj_p);
  }

  return ret_value;
} /* ecma_builtin_object_object_create */
/**
 * 'Greater-than-or-equal' opcode handler.
 *
 * See also: ECMA-262 v5, 11.8.4
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
opfunc_greater_or_equal_than (opcode_t opdata, /**< operation data */
                              int_data_t *int_data) /**< interpreter context */
{
  const idx_t dst_var_idx = opdata.data.greater_or_equal_than.dst;
  const idx_t left_var_idx = opdata.data.greater_or_equal_than.var_left;
  const idx_t right_var_idx = opdata.data.greater_or_equal_than.var_right;

  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  ECMA_TRY_CATCH (left_value, get_variable_value (int_data, left_var_idx, false), ret_value);
  ECMA_TRY_CATCH (right_value, get_variable_value (int_data, right_var_idx, false), ret_value);
  ECMA_TRY_CATCH (compare_result,
                  ecma_op_abstract_relational_compare (left_value, right_value, true),
                  ret_value);

  ecma_simple_value_t res;

  if (ecma_is_value_undefined (compare_result))
  {
    res = ECMA_SIMPLE_VALUE_FALSE;
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_boolean (compare_result));

    if (ecma_is_value_true (compare_result))
    {
      res = ECMA_SIMPLE_VALUE_FALSE;
    }
    else
    {
      res = ECMA_SIMPLE_VALUE_TRUE;
    }
  }

  ret_value = set_variable_value (int_data, int_data->pos, dst_var_idx, ecma_make_simple_value (res));

  ECMA_FINALIZE (compare_result);
  ECMA_FINALIZE (right_value);
  ECMA_FINALIZE (left_value);

  int_data->pos++;

  return ret_value;
} /* opfunc_greater_or_equal_than */
Пример #20
0
/**
 * 'typeof' opcode handler.
 *
 * See also: ECMA-262 v5, 11.4.3
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
opfunc_typeof (ecma_value_t left_value) /**< left value */
{
  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  ecma_string_t *type_str_p = NULL;

  if (ecma_is_value_undefined (left_value))
  {
    type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_UNDEFINED);
  }
  else if (ecma_is_value_null (left_value))
  {
    type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_OBJECT);
  }
  else if (ecma_is_value_boolean (left_value))
  {
    type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_BOOLEAN);
  }
  else if (ecma_is_value_number (left_value))
  {
    type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_NUMBER);
  }
  else if (ecma_is_value_string (left_value))
  {
    type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_STRING);
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_object (left_value));

    if (ecma_op_is_callable (left_value))
    {
      type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_FUNCTION);
    }
    else
    {
      type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_OBJECT);
    }
  }

  ret_value = ecma_make_string_value (type_str_p);

  return ret_value;
} /* opfunc_typeof */
Пример #21
0
/**
 * Deletes an object property.
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
vm_op_delete_prop (ecma_value_t object, /**< base object */
                   ecma_value_t property, /**< property name */
                   bool is_strict) /**< strict mode */
{
  ecma_value_t completion_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  if (ecma_is_value_undefined (object))
  {
    completion_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
  }
  else
  {
    completion_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

    ECMA_TRY_CATCH (check_coercible_ret,
                    ecma_op_check_object_coercible (object),
                    completion_value);
    ECMA_TRY_CATCH (str_name_value,
                    ecma_op_to_string (property),
                    completion_value);

    JERRY_ASSERT (ecma_is_value_string (str_name_value));
    ecma_string_t *name_string_p = ecma_get_string_from_value (str_name_value);

    ECMA_TRY_CATCH (obj_value, ecma_op_to_object (object), completion_value);

    JERRY_ASSERT (ecma_is_value_object (obj_value));
    ecma_object_t *obj_p = ecma_get_object_from_value (obj_value);
    JERRY_ASSERT (!ecma_is_lexical_environment (obj_p));

    ECMA_TRY_CATCH (delete_op_ret_val,
                    ecma_op_object_delete (obj_p, name_string_p, is_strict),
                    completion_value);

    completion_value = delete_op_ret_val;

    ECMA_FINALIZE (delete_op_ret_val);
    ECMA_FINALIZE (obj_value);
    ECMA_FINALIZE (str_name_value);
    ECMA_FINALIZE (check_coercible_ret);
  }

  return completion_value;
} /* vm_op_delete_prop */
Пример #22
0
/**
 * Deletes a variable.
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value
 */
ecma_value_t
vm_op_delete_var (lit_cpointer_t name_literal, /**< name literal */
                  ecma_object_t *lex_env_p, /**< lexical environment */
                  bool is_strict) /**< strict mode */
{
  ecma_value_t completion_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  ecma_string_t *var_name_str_p;

  var_name_str_p = ecma_new_ecma_string_from_lit_cp (name_literal);
  ecma_reference_t ref = ecma_op_get_identifier_reference (lex_env_p,
                                                           var_name_str_p,
                                                           is_strict);

  JERRY_ASSERT (!ref.is_strict);

  if (ecma_is_value_undefined (ref.base))
  {
    completion_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
  }
  else
  {
    ecma_object_t *ref_base_lex_env_p = ecma_op_resolve_reference_base (lex_env_p, var_name_str_p);

    JERRY_ASSERT (ecma_is_lexical_environment (ref_base_lex_env_p));

    ECMA_TRY_CATCH (delete_op_ret_val,
                    ecma_op_delete_binding (ref_base_lex_env_p,
                                            ECMA_GET_NON_NULL_POINTER (ecma_string_t,
                                                                       ref.referenced_name_cp)),
                    completion_value);

    completion_value = delete_op_ret_val;

    ECMA_FINALIZE (delete_op_ret_val);

  }

  ecma_free_reference (ref);
  ecma_deref_ecma_string (var_name_str_p);

  return completion_value;
} /* vm_op_delete_var */
Пример #23
0
/**
 * CreateImmutableBinding operation.
 *
 * See also: ECMA-262 v5, 10.2.1
 */
void
ecma_op_create_immutable_binding (ecma_object_t *lex_env_p, /**< lexical environment */
                                  ecma_string_t *name_p) /**< argument N */
{
  JERRY_ASSERT (lex_env_p != NULL
                && ecma_is_lexical_environment (lex_env_p));
  JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE);

  /*
   * Warning:
   *         Whether immutable bindings are deletable seems not to be defined by ECMA v5.
   */
  ecma_property_t *prop_p = ecma_create_named_data_property (lex_env_p,
                                                             name_p,
                                                             false, false, false);

  JERRY_ASSERT (ecma_is_value_undefined (ecma_get_named_data_property_value (prop_p)));

  ecma_set_named_data_property_value (prop_p,
                                      ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY));
} /* ecma_op_create_immutable_binding */
/**
 * Handle calling [[Call]] of built-in Object object
 *
 * @return completion-value
 */
ecma_completion_value_t
ecma_builtin_object_dispatch_call (const ecma_value_t *arguments_list_p, /**< arguments list */
                                   ecma_length_t arguments_list_len) /**< number of arguments */
{
  JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);

  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  if (arguments_list_len == 0
      || ecma_is_value_undefined (arguments_list_p[0])
      || ecma_is_value_null (arguments_list_p[0]))
  {
    ret_value = ecma_builtin_object_dispatch_construct (arguments_list_p, arguments_list_len);
  }
  else
  {
    ret_value = ecma_op_to_object (arguments_list_p[0]);
  }

  return ret_value;
} /* ecma_builtin_object_dispatch_call */
Пример #25
0
/**
 * 'Variable declaration' opcode handler.
 *
 * See also: ECMA-262 v5, 10.5 - Declaration binding instantiation (block 8).
 *
 * @return ecma value
 *         Returned value is simple and so need not be freed.
 *         However, ecma_free_value may be called for it, but it is a no-op.
 */
ecma_value_t
vm_var_decl (vm_frame_ctx_t *frame_ctx_p, /**< interpreter context */
             ecma_string_t *var_name_str_p) /**< variable name */
{
  if (!ecma_op_has_binding (frame_ctx_p->lex_env_p, var_name_str_p))
  {
    const bool is_configurable_bindings = frame_ctx_p->is_eval_code;

    ecma_value_t completion_value = ecma_op_create_mutable_binding (frame_ctx_p->lex_env_p,
                                                                    var_name_str_p,
                                                                    is_configurable_bindings);

    JERRY_ASSERT (ecma_is_value_empty (completion_value));

    /* Skipping SetMutableBinding as we have already checked that there were not
     * any binding with specified name in current lexical environment
     * and CreateMutableBinding sets the created binding's value to undefined */
    JERRY_ASSERT (ecma_is_value_undefined (ecma_op_get_binding_value (frame_ctx_p->lex_env_p,
                                                                      var_name_str_p,
                                                                      true)));
  }
  return ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
} /* vm_var_decl */
Пример #26
0
/**
 * 'for-in' opcode handler
 *
 * See also:
 *          ECMA-262 v5, 12.6.4
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_value
 */
ecma_collection_header_t *
opfunc_for_in (ecma_value_t left_value, /**< left value */
               ecma_value_t *result_obj_p) /**< expression object */
{
  ecma_value_t compl_val = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
  ecma_collection_header_t *prop_names_p = NULL;

  /* 3. */
  if (!ecma_is_value_undefined (left_value)
      && !ecma_is_value_null (left_value))
  {
    /* 4. */
    ECMA_TRY_CATCH (obj_expr_value,
                    ecma_op_to_object (left_value),
                    compl_val);

    ecma_object_t *obj_p = ecma_get_object_from_value (obj_expr_value);
    prop_names_p = ecma_op_object_get_property_names (obj_p, false, true, true);

    if (prop_names_p->unit_number != 0)
    {
      ecma_ref_object (obj_p);
      *result_obj_p = ecma_make_object_value (obj_p);
    }
    else
    {
      ecma_dealloc_collection_header (prop_names_p);
      prop_names_p = NULL;
    }

    ECMA_FINALIZE (obj_expr_value);
  }

  JERRY_ASSERT (ecma_is_value_empty (compl_val));

  return prop_names_p;
} /* opfunc_for_in */
Пример #27
0
/**
 * ToBoolean operation. Cannot throw an exception.
 *
 * See also:
 *          ECMA-262 v5, 9.2
 *
 * @return true if the logical value is true
 *         false otherwise
 */
bool
ecma_op_to_boolean (ecma_value_t value) /**< ecma value */
{
  ecma_check_value_type_is_spec_defined (value);

  if (ecma_is_value_simple (value))
  {
    JERRY_ASSERT (ecma_is_value_boolean (value)
                  || ecma_is_value_undefined (value)
                  || ecma_is_value_null (value));

    return ecma_is_value_true (value);
  }

  if (ecma_is_value_integer_number (value))
  {
    return (value != ecma_make_integer_value (0));
  }

  if (ecma_is_value_float_number (value))
  {
    ecma_number_t num = ecma_get_float_from_value (value);

    return (!ecma_number_is_nan (num) && !ecma_number_is_zero (num));
  }

  if (ecma_is_value_string (value))
  {
    ecma_string_t *str_p = ecma_get_string_from_value (value);

    return ecma_string_get_length (str_p) != 0;
  }

  JERRY_ASSERT (ecma_is_value_object (value));

  return true;
} /* ecma_op_to_boolean */
Пример #28
0
/**
 * 'Object' object creation operation with one argument.
 *
 * See also: ECMA-262 v5, 15.2.2.1
 *
 * @return pointer to newly created 'Object' object
 */
ecma_completion_value_t
ecma_op_create_object_object_arg (ecma_value_t value) /**< argument of constructor */
{
  ecma_check_value_type_is_spec_defined (value);

  if (ecma_is_value_object (value)
      || ecma_is_value_number (value)
      || ecma_is_value_string (value)
      || ecma_is_value_boolean (value))
  {
    // 1.b, 1.c, 1.d
    return ecma_op_to_object (value);
  }
  else
  {
    // 2.
    JERRY_ASSERT (ecma_is_value_undefined (value)
                  || ecma_is_value_null (value));

    ecma_object_t *obj_p = ecma_op_create_object_object_noarg ();

    return ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
  }
} /* ecma_op_create_object_object_arg */
Пример #29
0
ecma_completion_value_t
ecma_builtin_helper_object_to_string (const ecma_value_t this_arg) /**< this argument */
{
  lit_magic_string_id_t type_string;

  if (ecma_is_value_undefined (this_arg))
  {
    type_string = LIT_MAGIC_STRING_UNDEFINED_UL;
  }
  else if (ecma_is_value_null (this_arg))
  {
    type_string = LIT_MAGIC_STRING_NULL_UL;
  }
  else
  {
    ecma_completion_value_t obj_this = ecma_op_to_object (this_arg);

    if (!ecma_is_completion_value_normal (obj_this))
    {
      return obj_this;
    }

    JERRY_ASSERT (ecma_is_value_object (ecma_get_completion_value_value (obj_this)));

    ecma_object_t *obj_p = ecma_get_object_from_completion_value (obj_this);

    type_string = ecma_object_get_class_name (obj_p);

    ecma_free_completion_value (obj_this);
  }

  ecma_string_t *ret_string_p;

  /* Building string "[object #type#]" where type is 'Undefined',
     'Null' or one of possible object's classes.
     The string with null character is maximum 19 characters long. */
  const ssize_t buffer_size = 19;
  MEM_DEFINE_LOCAL_ARRAY (str_buffer, buffer_size, lit_utf8_byte_t);

  lit_utf8_byte_t *buffer_ptr = str_buffer;
  ssize_t buffer_size_left = buffer_size;

  const lit_magic_string_id_t magic_string_ids[] =
  {
    LIT_MAGIC_STRING_LEFT_SQUARE_CHAR,
    LIT_MAGIC_STRING_OBJECT,
    LIT_MAGIC_STRING_SPACE_CHAR,
    type_string,
    LIT_MAGIC_STRING_RIGHT_SQUARE_CHAR
  };

  for (uint32_t i = 0; i < sizeof (magic_string_ids) / sizeof (lit_magic_string_id_t); ++i)
  {
    buffer_ptr = lit_copy_magic_string_to_buffer (magic_string_ids[i], buffer_ptr, buffer_size_left);
    buffer_size_left = buffer_size - (buffer_ptr - str_buffer);
  }

  JERRY_ASSERT (buffer_size_left >= 0);

  ret_string_p = ecma_new_ecma_string_from_utf8 (str_buffer, (lit_utf8_size_t) (buffer_size - buffer_size_left));

  MEM_FINALIZE_LOCAL_ARRAY (str_buffer);

  return ecma_make_normal_completion_value (ecma_make_string_value (ret_string_p));
} /* ecma_builtin_helper_object_to_string */
/**
 * The Function.prototype object's 'apply' routine
 *
 * See also:
 *          ECMA-262 v5, 15.3.4.3
 *
 * @return ecma value
 *         Returned value must be freed with ecma_free_value.
 */
static ecma_value_t
ecma_builtin_function_prototype_object_apply (ecma_value_t this_arg, /**< this argument */
                                              ecma_value_t arg1, /**< first argument */
                                              ecma_value_t arg2) /**< second argument */
{
  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);

  /* 1. */
  if (!ecma_op_is_callable (this_arg))
  {
    ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
  }
  else
  {
    ecma_object_t *func_obj_p = ecma_get_object_from_value (this_arg);

    /* 2. */
    if (ecma_is_value_null (arg2) || ecma_is_value_undefined (arg2))
    {
      ret_value = ecma_op_function_call (func_obj_p, arg1, NULL, 0);
    }
    else
    {
      /* 3. */
      if (!ecma_is_value_object (arg2))
      {
        ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
      }
      else
      {
        ecma_object_t *obj_p = ecma_get_object_from_value (arg2);
        ecma_string_t *length_magic_string_p = ecma_new_ecma_length_string ();

        /* 4. */
        ECMA_TRY_CATCH (length_value,
                        ecma_op_object_get (obj_p, length_magic_string_p),
                        ret_value);

        ECMA_OP_TO_NUMBER_TRY_CATCH (length_number,
                                     length_value,
                                     ret_value);

        /* 5. */
        const uint32_t length = ecma_number_to_uint32 (length_number);

        /* 6. */
        JMEM_DEFINE_LOCAL_ARRAY (arguments_list_p, length, ecma_value_t);
        uint32_t last_index = 0;

        /* 7. */
        for (uint32_t index = 0;
             index < length && ecma_is_value_empty (ret_value);
             index++)
        {
          ecma_string_t *curr_idx_str_p = ecma_new_ecma_string_from_uint32 (index);

          ECMA_TRY_CATCH (get_value,
                          ecma_op_object_get (obj_p, curr_idx_str_p),
                          ret_value);

          arguments_list_p[index] = ecma_copy_value (get_value);
          last_index = index + 1;

          ECMA_FINALIZE (get_value);
          ecma_deref_ecma_string (curr_idx_str_p);
        }

        if (ecma_is_value_empty (ret_value))
        {
          JERRY_ASSERT (last_index == length);
          ret_value = ecma_op_function_call (func_obj_p,
                                             arg1,
                                             arguments_list_p,
                                             length);
        }

        for (uint32_t index = 0; index < last_index; index++)
        {
          ecma_free_value (arguments_list_p[index]);
        }

        JMEM_FINALIZE_LOCAL_ARRAY (arguments_list_p);

        ECMA_OP_TO_NUMBER_FINALIZE (length_number);
        ECMA_FINALIZE (length_value);
        ecma_deref_ecma_string (length_magic_string_p);
      }
    }
  }

  return ret_value;
} /* ecma_builtin_function_prototype_object_apply */