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https://github.com/jerryscript-project/jerryscript.git
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918eb22a01
Aborts are similar to exceptions except they are not caught by catch and finally blocks. Callbacks should honor aborts as well and return them without processing them. Aborts are never thrown by JavaScript code. In the future certain events such as out-of-memory condition may also throw aborts. JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "config.h"
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#include "jerryscript.h"
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#include "test-common.h"
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static jerry_value_t
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vm_exec_stop_callback (void *user_p)
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{
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int *int_p = (int *) user_p;
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if (*int_p > 0)
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{
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(*int_p)--;
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return jerry_create_undefined ();
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}
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return jerry_create_string ((const jerry_char_t *) "Abort script");
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} /* vm_exec_stop_callback */
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int
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main (void)
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{
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TEST_INIT ();
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/* Test stopping an infinite loop. */
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if (!jerry_is_feature_enabled (JERRY_FEATURE_VM_EXEC_STOP))
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{
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return 0;
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}
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jerry_init (JERRY_INIT_EMPTY);
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int countdown = 6;
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jerry_set_vm_exec_stop_callback (vm_exec_stop_callback, &countdown, 16);
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const char *inf_loop_code_src_p = "while(true) {}";
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jerry_value_t parsed_code_val = jerry_parse ((jerry_char_t *) inf_loop_code_src_p,
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strlen (inf_loop_code_src_p),
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false);
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TEST_ASSERT (!jerry_value_has_error_flag (parsed_code_val));
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jerry_value_t res = jerry_run (parsed_code_val);
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TEST_ASSERT (countdown == 0);
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TEST_ASSERT (jerry_value_has_error_flag (res));
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jerry_release_value (res);
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jerry_release_value (parsed_code_val);
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/* A more complex example. Although the callback error is captured
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* by the catch block, it is automatically thrown again. */
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/* We keep the callback function, only the countdown is reset. */
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countdown = 6;
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inf_loop_code_src_p = ("function f() { while (true) ; }\n"
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"try { f(); } catch(e) {}");
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parsed_code_val = jerry_parse ((jerry_char_t *) inf_loop_code_src_p,
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strlen (inf_loop_code_src_p),
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false);
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TEST_ASSERT (!jerry_value_has_error_flag (parsed_code_val));
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res = jerry_run (parsed_code_val);
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TEST_ASSERT (countdown == 0);
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/* The result must have an error flag which proves that
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* the error is thrown again inside the catch block. */
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TEST_ASSERT (jerry_value_has_error_flag (res));
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jerry_release_value (res);
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jerry_release_value (parsed_code_val);
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jerry_cleanup ();
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return 0;
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} /* main */
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