xiuos/APP_Framework/lib/JerryScript/jerryscript/jerry-ext/handler/handler-assert.c

135 lines
5.2 KiB
C

/* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "jerryscript-ext/handler.h"
#include "jerryscript-port.h"
#include <inttypes.h>
/**
* Hard assert for scripts. The routine calls jerry_port_fatal on assertion failure.
*
* Notes:
* * If the `JERRY_FEATURE_LINE_INFO` runtime feature is enabled (build option: `JERRY_LINE_INFO`)
* a backtrace is also printed out.
*
* @return true - if only one argument was passed and that argument was a boolean true.
* Note that the function does not return otherwise.
*/
jerry_value_t
jerryx_handler_assert_fatal (const jerry_value_t func_obj_val, /**< function object */
const jerry_value_t this_p, /**< this arg */
const jerry_value_t args_p[], /**< function arguments */
const jerry_length_t args_cnt) /**< number of function arguments */
{
(void) func_obj_val; /* unused */
(void) this_p; /* unused */
if (args_cnt == 1
&& jerry_value_is_boolean (args_p[0])
&& jerry_get_boolean_value (args_p[0]))
{
return jerry_create_boolean (true);
}
/* Assert failed, print a bit of JS backtrace */
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Script Error: assertion failed\n");
if (jerry_is_feature_enabled (JERRY_FEATURE_LINE_INFO))
{
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Script backtrace (top 5):\n");
/* If the line info feature is disabled an empty array will be returned. */
jerry_value_t backtrace_array = jerry_get_backtrace (5);
uint32_t array_length = jerry_get_array_length (backtrace_array);
for (uint32_t idx = 0; idx < array_length; idx++)
{
jerry_value_t property = jerry_get_property_by_index (backtrace_array, idx);
jerry_length_t total_size = jerry_get_utf8_string_size (property);
jerry_length_t current_size = 0;
jerry_char_t string_buffer[64];
const jerry_length_t copy_size = (jerry_length_t) (sizeof (string_buffer) - 1);
/* On some systems the uint32_t values can't be printed with "%u" and
* on some systems it can be printed. To avoid differences in the uint32_t typdef
* The "PRIu32" macro is used to correctly add the formatter.
*/
jerry_port_log (JERRY_LOG_LEVEL_ERROR, " %"PRIu32": ", idx);
do
{
jerry_size_t copied_bytes = jerry_substring_to_utf8_char_buffer (property,
current_size,
current_size + copy_size,
string_buffer,
copy_size);
string_buffer[copied_bytes] = '\0';
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "%s", string_buffer);
current_size += copied_bytes;
}
while (total_size != current_size);
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "\n");
jerry_release_value (property);
}
jerry_release_value (backtrace_array);
}
jerry_port_fatal (ERR_FAILED_INTERNAL_ASSERTION);
} /* jerryx_handler_assert_fatal */
/**
* Soft assert for scripts. The routine throws an error on assertion failure.
*
* @return true - if only one argument was passed and that argument was a boolean true.
* error - otherwise.
*/
jerry_value_t
jerryx_handler_assert_throw (const jerry_value_t func_obj_val, /**< function object */
const jerry_value_t this_p, /**< this arg */
const jerry_value_t args_p[], /**< function arguments */
const jerry_length_t args_cnt) /**< number of function arguments */
{
(void) func_obj_val; /* unused */
(void) this_p; /* unused */
if (args_cnt == 1
&& jerry_value_is_boolean (args_p[0])
&& jerry_get_boolean_value (args_p[0]))
{
return jerry_create_boolean (true);
}
return jerry_create_error (JERRY_ERROR_COMMON, (jerry_char_t *) "assertion failed");
} /* jerryx_handler_assert_throw */
/**
* An alias to `jerryx_handler_assert_fatal`.
*
* @return true - if only one argument was passed and that argument was a boolean true.
* Note that the function does not return otherwise.
*/
jerry_value_t
jerryx_handler_assert (const jerry_value_t func_obj_val, /**< function object */
const jerry_value_t this_p, /**< this arg */
const jerry_value_t args_p[], /**< function arguments */
const jerry_length_t args_cnt) /**< number of function arguments */
{
return jerryx_handler_assert_fatal (func_obj_val, this_p, args_p, args_cnt);
} /* jerryx_handler_assert */