C++ ecma_is_value_undefined函数代码示例

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本文整理汇总了C++中ecma_is_value_undefined函数的典型用法代码示例。如果您正苦于以下问题：C++ ecma_is_value_undefined函数的具体用法？C++ ecma_is_value_undefined怎么用？C++ ecma_is_value_undefined使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了ecma_is_value_undefined函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: ecma_builtin_date_prototype_set_minutes

/**
 * 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 */

开发者ID:Akromx16，项目名称:jerryscript，代码行数:60，代码来源:ecma-builtin-date-prototype.c

示例2: ecma_op_to_object

/**
 * 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 */

开发者ID:vvreal，项目名称:jerryscript，代码行数:41，代码来源:ecma-conversion.c

示例3: ecma_builtin_date_prototype_set_utc_seconds

/**
 * 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 */

开发者ID:Akromx16，项目名称:jerryscript，代码行数:44，代码来源:ecma-builtin-date-prototype.c

示例4: opfunc_relation

/**
 * 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 */

开发者ID:Samsung，项目名称:jerryscript，代码行数:40，代码来源:opcodes-ecma-relational-equality.c

示例5: ecma_builtin_date_prototype_set_utc_month

/**
 * 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 */

开发者ID:Akromx16，项目名称:jerryscript，代码行数:43，代码来源:ecma-builtin-date-prototype.c

示例6: ecma_builtin_helper_get_to_locale_string_at_index

/**
 * 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 */

开发者ID:gudbooy，项目名称:jerryscript，代码行数:69，代码来源:ecma-builtin-helpers.c

示例7: opfunc_greater_than

/**
 * '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 */

开发者ID:drashti304，项目名称:TizenRT，代码行数:33，代码来源:opcodes-ecma-relational.c

示例8: ecma_op_to_object

/**
 * 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 */

开发者ID:kkristof，项目名称:jerryscript，代码行数:41，代码来源:ecma-conversion.cpp

示例9: ecma_builtin_syntax_error_dispatch_call

/**
 * 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 */

开发者ID:SmartFire，项目名称:jerryscript，代码行数:36，代码来源:ecma-builtin-syntaxerror.c

示例10: ecma_builtin_helper_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 */

开发者ID:Samsung，项目名称:jerryscript，代码行数:37，代码来源:ecma-builtin-helpers-error.c

示例11: ecma_op_to_string

/**
 * 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 */

开发者ID:kkristof，项目名称:jerryscript，代码行数:67，代码来源:ecma-conversion.cpp

示例12: ecma_check_value_type_is_spec_defined

/**
 * 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 */

开发者ID:SmartFire，项目名称:jerryscript，代码行数:14，代码来源:ecma-helpers-value.c

示例13: vm_run_global

/**
 * 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 */

开发者ID:szledan，项目名称:jerryscript，代码行数:58，代码来源:vm.cpp

示例14: ecma_op_to_boolean

/**
 * 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 */

开发者ID:kkristof，项目名称:jerryscript，代码行数:63，代码来源:ecma-conversion.cpp

示例15: ecma_op_check_object_coercible

/**
 * 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 */

开发者ID:kkristof，项目名称:jerryscript，代码行数:24，代码来源:ecma-conversion.cpp

示例16: ecma_op_check_object_coercible

/**
 * 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 */

开发者ID:vvreal，项目名称:jerryscript，代码行数:24，代码来源:ecma-conversion.c

示例17: opfunc_greater_or_equal_than

/**
 * '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 */

开发者ID:Ilyushin，项目名称:jerryscript，代码行数:56，代码来源:opcodes-ecma-relational.cpp

示例18: ecma_builtin_object_object_create

/**
 * 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 */

开发者ID:jiangrunwu，项目名称:iotjs-openwrt，代码行数:55，代码来源:ecma-builtin-object.cpp

示例19: opfunc_greater_or_equal_than

/**
 * '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 */

开发者ID:galpeter，项目名称:jerryscript_old，代码行数:54，代码来源:opcodes-ecma-relational.cpp

示例20: opfunc_typeof

/**
 * '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 */

开发者ID:drashti304，项目名称:TizenRT，代码行数:53，代码来源:opcodes.c

注：本文中的ecma_is_value_undefined函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。