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node-api: enable uncaught exceptions policy by default

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This enables the option `--force-node-api-uncaught-exceptions-policy`
for a specific Node-API addon when it is compiled with
`NAPI_EXPERIMENTAL` (and this would be the default behavior when
`NAPI_VERSION` 10 releases). This would not break existing Node-API
addons.

PR-URL: https://github.com/nodejs/node/pull/49313
Refs: https://github.com/nodejs/node/pull/36510
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Gabriel Schulhof <gabrielschulhof@gmail.com>
This commit is contained in:
Chengzhong Wu 2023-09-25 12:23:58 +08:00 committed by GitHub
parent 448996cf95
commit 77597d3aea
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
16 changed files with 307 additions and 133 deletions
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8
doc/api/n-api.md
View File

@ -6249,6 +6249,13 @@ napi_create_threadsafe_function(napi_env env,
[`napi_threadsafe_function_call_js`][] provides more details.
* `[out] result`: The asynchronous thread-safe JavaScript function.
**Change History:**
* Experimental (`NAPI_EXPERIMENTAL` is defined):
Uncaught exceptions thrown in `call_js_cb` are handled with the
[`'uncaughtException'`][] event, instead of being ignored.
### `napi_get_threadsafe_function_context`
<!-- YAML
@ -6479,6 +6486,7 @@ the add-on's file name during loading.
[Visual Studio]: https://visualstudio.microsoft.com
[Working with JavaScript properties]: #working-with-javascript-properties
[Xcode]: https://developer.apple.com/xcode/
[`'uncaughtException'`]: process.md#event-uncaughtexception
[`Number.MAX_SAFE_INTEGER`]: https://tc39.github.io/ecma262/#sec-number.max_safe_integer
[`Number.MIN_SAFE_INTEGER`]: https://tc39.github.io/ecma262/#sec-number.min_safe_integer
[`Worker`]: worker_threads.md#class-worker

16
src/node_api.cc
View File

@ -82,9 +82,8 @@ void node_napi_env__::trigger_fatal_exception(v8::Local<v8::Value> local_err) {
node::errors::TriggerUncaughtException(isolate, local_err, local_msg);
}
// option enforceUncaughtExceptionPolicy is added for not breaking existing
// running n-api add-ons, and should be deprecated in the next major Node.js
// release.
// The option enforceUncaughtExceptionPolicy is added for not breaking existing
// running Node-API add-ons.
template <bool enforceUncaughtExceptionPolicy, typename T>
void node_napi_env__::CallbackIntoModule(T&& call) {
CallIntoModule(call, [](napi_env env_, v8::Local<v8::Value> local_err) {
@ -93,19 +92,24 @@ void node_napi_env__::CallbackIntoModule(T&& call) {
return;
}
node::Environment* node_env = env->node_env();
if (!node_env->options()->force_node_api_uncaught_exceptions_policy &&
// If the module api version is less than NAPI_VERSION_EXPERIMENTAL,
// and the option --force-node-api-uncaught-exceptions-policy is not
// specified, emit a warning about the uncaught exception instead of
// triggering uncaught exception event.
if (env->module_api_version < NAPI_VERSION_EXPERIMENTAL &&
!node_env->options()->force_node_api_uncaught_exceptions_policy &&
!enforceUncaughtExceptionPolicy) {
ProcessEmitDeprecationWarning(
node_env,
"Uncaught N-API callback exception detected, please run node "
"with option --force-node-api-uncaught-exceptions-policy=true"
"with option --force-node-api-uncaught-exceptions-policy=true "
"to handle those exceptions properly.",
"DEP0168");
return;
}
// If there was an unhandled exception in the complete callback,
// report it as a fatal exception. (There is no JavaScript on the
// callstack that can possibly handle it.)
// call stack that can possibly handle it.)
env->trigger_fatal_exception(local_err);
});
}

6
test/js-native-api/test_reference/binding.gyp
View File

@ -5,6 +5,12 @@
"sources": [
"test_reference.c"
]
},
{
"target_name": "test_finalizer",
"sources": [
"test_finalizer.c"
]
}
]
}

71
test/js-native-api/test_reference/test_finalizer.c Normal file
View File

@ -0,0 +1,71 @@
#include <assert.h>
#include <js_native_api.h>
#include <stdlib.h>
#include "../common.h"
#include "../entry_point.h"
static int test_value = 1;
static int finalize_count = 0;
static void FinalizeExternalCallJs(napi_env env, void* data, void* hint) {
int* actual_value = data;
NODE_API_ASSERT_RETURN_VOID(
env,
actual_value == &test_value,
"The correct pointer was passed to the finalizer");
napi_ref finalizer_ref = (napi_ref)hint;
napi_value js_finalizer;
napi_value recv;
NODE_API_CALL_RETURN_VOID(
env, napi_get_reference_value(env, finalizer_ref, &js_finalizer));
NODE_API_CALL_RETURN_VOID(env, napi_get_global(env, &recv));
NODE_API_CALL_RETURN_VOID(
env, napi_call_function(env, recv, js_finalizer, 0, NULL, NULL));
NODE_API_CALL_RETURN_VOID(env, napi_delete_reference(env, finalizer_ref));
}
static napi_value CreateExternalWithJsFinalize(napi_env env,
napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
napi_value finalizer = args[0];
napi_valuetype finalizer_valuetype;
NODE_API_CALL(env, napi_typeof(env, finalizer, &finalizer_valuetype));
NODE_API_ASSERT(env,
finalizer_valuetype == napi_function,
"Wrong type of first argument");
napi_ref finalizer_ref;
NODE_API_CALL(env, napi_create_reference(env, finalizer, 1, &finalizer_ref));
napi_value result;
NODE_API_CALL(env,
napi_create_external(env,
&test_value,
FinalizeExternalCallJs,
finalizer_ref, /* finalize_hint */
&result));
finalize_count = 0;
return result;
}
EXTERN_C_START
napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor descriptors[] = {
DECLARE_NODE_API_PROPERTY("createExternalWithJsFinalize",
CreateExternalWithJsFinalize),
};
NODE_API_CALL(
env,
napi_define_properties(env,
exports,
sizeof(descriptors) / sizeof(*descriptors),
descriptors));
return exports;
}
EXTERN_C_END

4
test/js-native-api/test_reference/test_finalizer.js
View File

@ -2,7 +2,7 @@
// Flags: --expose-gc --force-node-api-uncaught-exceptions-policy
const common = require('../../common');
const test_reference = require(`./build/${common.buildType}/test_reference`);
const binding = require(`./build/${common.buildType}/test_finalizer`);
const assert = require('assert');
process.on('uncaughtException', common.mustCall((err) => {
@ -11,7 +11,7 @@ process.on('uncaughtException', common.mustCall((err) => {
(async function() {
{
test_reference.createExternalWithJsFinalize(
binding.createExternalWithJsFinalize(
common.mustCall(() => {
throw new Error('finalizer error');
}));

75
test/js-native-api/test_reference/test_reference.c
View File

@ -22,20 +22,6 @@ static void FinalizeExternal(napi_env env, void* data, void* hint) {
finalize_count++;
}
static void FinalizeExternalCallJs(napi_env env, void* data, void* hint) {
int *actual_value = data;
NODE_API_ASSERT_RETURN_VOID(env, actual_value == &test_value,
"The correct pointer was passed to the finalizer");
napi_ref finalizer_ref = (napi_ref)hint;
napi_value js_finalizer;
napi_value recv;
NODE_API_CALL_RETURN_VOID(env, napi_get_reference_value(env, finalizer_ref, &js_finalizer));
NODE_API_CALL_RETURN_VOID(env, napi_get_global(env, &recv));
NODE_API_CALL_RETURN_VOID(env, napi_call_function(env, recv, js_finalizer, 0, NULL, NULL));
NODE_API_CALL_RETURN_VOID(env, napi_delete_reference(env, finalizer_ref));
}
static napi_value CreateExternal(napi_env env, napi_callback_info info) {
int* data = &test_value;
@ -118,31 +104,6 @@ CreateExternalWithFinalize(napi_env env, napi_callback_info info) {
return result;
}
static napi_value
CreateExternalWithJsFinalize(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
napi_value finalizer = args[0];
napi_valuetype finalizer_valuetype;
NODE_API_CALL(env, napi_typeof(env, finalizer, &finalizer_valuetype));
NODE_API_ASSERT(env, finalizer_valuetype == napi_function, "Wrong type of first argument");
napi_ref finalizer_ref;
NODE_API_CALL(env, napi_create_reference(env, finalizer, 1, &finalizer_ref));
napi_value result;
NODE_API_CALL(env,
napi_create_external(env,
&test_value,
FinalizeExternalCallJs,
finalizer_ref, /* finalize_hint */
&result));
finalize_count = 0;
return result;
}
static napi_value CheckExternal(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value arg;
@ -263,24 +224,24 @@ static napi_value ValidateDeleteBeforeFinalize(napi_env env, napi_callback_info
EXTERN_C_START
napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor descriptors[] = {
DECLARE_NODE_API_GETTER("finalizeCount", GetFinalizeCount),
DECLARE_NODE_API_PROPERTY("createExternal", CreateExternal),
DECLARE_NODE_API_PROPERTY("createExternalWithFinalize",
CreateExternalWithFinalize),
DECLARE_NODE_API_PROPERTY("createExternalWithJsFinalize",
CreateExternalWithJsFinalize),
DECLARE_NODE_API_PROPERTY("checkExternal", CheckExternal),
DECLARE_NODE_API_PROPERTY("createReference", CreateReference),
DECLARE_NODE_API_PROPERTY("createSymbol", CreateSymbol),
DECLARE_NODE_API_PROPERTY("createSymbolFor", CreateSymbolFor),
DECLARE_NODE_API_PROPERTY("createSymbolForEmptyString", CreateSymbolForEmptyString),
DECLARE_NODE_API_PROPERTY("createSymbolForIncorrectLength", CreateSymbolForIncorrectLength),
DECLARE_NODE_API_PROPERTY("deleteReference", DeleteReference),
DECLARE_NODE_API_PROPERTY("incrementRefcount", IncrementRefcount),
DECLARE_NODE_API_PROPERTY("decrementRefcount", DecrementRefcount),
DECLARE_NODE_API_GETTER("referenceValue", GetReferenceValue),
DECLARE_NODE_API_PROPERTY("validateDeleteBeforeFinalize",
ValidateDeleteBeforeFinalize),
DECLARE_NODE_API_GETTER("finalizeCount", GetFinalizeCount),
DECLARE_NODE_API_PROPERTY("createExternal", CreateExternal),
DECLARE_NODE_API_PROPERTY("createExternalWithFinalize",
CreateExternalWithFinalize),
DECLARE_NODE_API_PROPERTY("checkExternal", CheckExternal),
DECLARE_NODE_API_PROPERTY("createReference", CreateReference),
DECLARE_NODE_API_PROPERTY("createSymbol", CreateSymbol),
DECLARE_NODE_API_PROPERTY("createSymbolFor", CreateSymbolFor),
DECLARE_NODE_API_PROPERTY("createSymbolForEmptyString",
CreateSymbolForEmptyString),
DECLARE_NODE_API_PROPERTY("createSymbolForIncorrectLength",
CreateSymbolForIncorrectLength),
DECLARE_NODE_API_PROPERTY("deleteReference", DeleteReference),
DECLARE_NODE_API_PROPERTY("incrementRefcount", IncrementRefcount),
DECLARE_NODE_API_PROPERTY("decrementRefcount", DecrementRefcount),
DECLARE_NODE_API_GETTER("referenceValue", GetReferenceValue),
DECLARE_NODE_API_PROPERTY("validateDeleteBeforeFinalize",
ValidateDeleteBeforeFinalize),
};
NODE_API_CALL(env, napi_define_properties(

4
test/node-api/test_buffer/binding.gyp
View File

@ -3,6 +3,10 @@
{
"target_name": "test_buffer",
"sources": [ "test_buffer.c" ]
},
{
"target_name": "test_finalizer",
"sources": [ "test_finalizer.c" ]
}
]
}

50
test/node-api/test_buffer/test_buffer.c
View File

@ -22,17 +22,6 @@ static void noopDeleter(napi_env env, void* data, void* finalize_hint) {
deleterCallCount++;
}
static void malignDeleter(napi_env env, void* data, void* finalize_hint) {
NODE_API_ASSERT_RETURN_VOID(env, data != NULL && strcmp(data, theText) == 0, "invalid data");
napi_ref finalizer_ref = (napi_ref)finalize_hint;
napi_value js_finalizer;
napi_value recv;
NODE_API_CALL_RETURN_VOID(env, napi_get_reference_value(env, finalizer_ref, &js_finalizer));
NODE_API_CALL_RETURN_VOID(env, napi_get_global(env, &recv));
NODE_API_CALL_RETURN_VOID(env, napi_call_function(env, recv, js_finalizer, 0, NULL, NULL));
NODE_API_CALL_RETURN_VOID(env, napi_delete_reference(env, finalizer_ref));
}
static napi_value newBuffer(napi_env env, napi_callback_info info) {
napi_value theBuffer;
char* theCopy;
@ -118,30 +107,6 @@ static napi_value staticBuffer(napi_env env, napi_callback_info info) {
return theBuffer;
}
static napi_value malignFinalizerBuffer(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
napi_value finalizer = args[0];
napi_valuetype finalizer_valuetype;
NODE_API_CALL(env, napi_typeof(env, finalizer, &finalizer_valuetype));
NODE_API_ASSERT(env, finalizer_valuetype == napi_function, "Wrong type of first argument");
napi_ref finalizer_ref;
NODE_API_CALL(env, napi_create_reference(env, finalizer, 1, &finalizer_ref));
napi_value theBuffer;
NODE_API_CALL(
env,
napi_create_external_buffer(env,
sizeof(theText),
(void*)theText,
malignDeleter,
finalizer_ref, // finalize_hint
&theBuffer));
return theBuffer;
}
static napi_value Init(napi_env env, napi_value exports) {
napi_value theValue;
@ -151,14 +116,13 @@ static napi_value Init(napi_env env, napi_value exports) {
napi_set_named_property(env, exports, "theText", theValue));
napi_property_descriptor methods[] = {
DECLARE_NODE_API_PROPERTY("newBuffer", newBuffer),
DECLARE_NODE_API_PROPERTY("newExternalBuffer", newExternalBuffer),
DECLARE_NODE_API_PROPERTY("getDeleterCallCount", getDeleterCallCount),
DECLARE_NODE_API_PROPERTY("copyBuffer", copyBuffer),
DECLARE_NODE_API_PROPERTY("bufferHasInstance", bufferHasInstance),
DECLARE_NODE_API_PROPERTY("bufferInfo", bufferInfo),
DECLARE_NODE_API_PROPERTY("staticBuffer", staticBuffer),
DECLARE_NODE_API_PROPERTY("malignFinalizerBuffer", malignFinalizerBuffer),
DECLARE_NODE_API_PROPERTY("newBuffer", newBuffer),
DECLARE_NODE_API_PROPERTY("newExternalBuffer", newExternalBuffer),
DECLARE_NODE_API_PROPERTY("getDeleterCallCount", getDeleterCallCount),
DECLARE_NODE_API_PROPERTY("copyBuffer", copyBuffer),
DECLARE_NODE_API_PROPERTY("bufferHasInstance", bufferHasInstance),
DECLARE_NODE_API_PROPERTY("bufferInfo", bufferInfo),
DECLARE_NODE_API_PROPERTY("staticBuffer", staticBuffer),
};
NODE_API_CALL(env, napi_define_properties(

61
test/node-api/test_buffer/test_finalizer.c Normal file
View File

@ -0,0 +1,61 @@
#include <node_api.h>
#include <stdlib.h>
#include <string.h>
#include "../../js-native-api/common.h"
static const char theText[] =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
static void malignDeleter(napi_env env, void* data, void* finalize_hint) {
NODE_API_ASSERT_RETURN_VOID(
env, data != NULL && strcmp(data, theText) == 0, "invalid data");
napi_ref finalizer_ref = (napi_ref)finalize_hint;
napi_value js_finalizer;
napi_value recv;
NODE_API_CALL_RETURN_VOID(
env, napi_get_reference_value(env, finalizer_ref, &js_finalizer));
NODE_API_CALL_RETURN_VOID(env, napi_get_global(env, &recv));
NODE_API_CALL_RETURN_VOID(
env, napi_call_function(env, recv, js_finalizer, 0, NULL, NULL));
NODE_API_CALL_RETURN_VOID(env, napi_delete_reference(env, finalizer_ref));
}
static napi_value malignFinalizerBuffer(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
napi_value finalizer = args[0];
napi_valuetype finalizer_valuetype;
NODE_API_CALL(env, napi_typeof(env, finalizer, &finalizer_valuetype));
NODE_API_ASSERT(env,
finalizer_valuetype == napi_function,
"Wrong type of first argument");
napi_ref finalizer_ref;
NODE_API_CALL(env, napi_create_reference(env, finalizer, 1, &finalizer_ref));
napi_value theBuffer;
NODE_API_CALL(env,
napi_create_external_buffer(env,
sizeof(theText),
(void*)theText,
malignDeleter,
finalizer_ref, // finalize_hint
&theBuffer));
return theBuffer;
}
static napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor methods[] = {
DECLARE_NODE_API_PROPERTY("malignFinalizerBuffer", malignFinalizerBuffer),
};
NODE_API_CALL(
env,
napi_define_properties(
env, exports, sizeof(methods) / sizeof(methods[0]), methods));
return exports;
}
NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)

2
test/node-api/test_buffer/test_finalizer.js
View File

@ -2,7 +2,7 @@
// Flags: --expose-gc --force-node-api-uncaught-exceptions-policy
const common = require('../../common');
const binding = require(`./build/${common.buildType}/test_buffer`);
const binding = require(`./build/${common.buildType}/test_finalizer`);
const assert = require('assert');
const tick = require('util').promisify(require('../../common/tick'));

14
test/node-api/test_threadsafe_function/binding.gyp
View File

@ -3,6 +3,20 @@
{
'target_name': 'binding',
'sources': ['binding.c']
},
{
'target_name': 'test_uncaught_exception_v9',
'defines': [
'NAPI_VERSION=9'
],
'sources': ['test_uncaught_exception.c']
},
{
'target_name': 'test_uncaught_exception',
'defines': [
'NAPI_EXPERIMENTAL'
],
'sources': ['test_uncaught_exception.c']
}
]
}

2
test/node-api/test_threadsafe_function/test_force_uncaught_exception.js → test/node-api/test_threadsafe_function/test_legacy_uncaught_exception.js
View File

@ -2,7 +2,7 @@
// Flags: --no-force-node-api-uncaught-exceptions-policy
const common = require('../../common');
const binding = require(`./build/${common.buildType}/binding`);
const binding = require(`./build/${common.buildType}/test_uncaught_exception_v9`);
process.on(
'uncaughtException',

62
test/node-api/test_threadsafe_function/test_uncaught_exception.c Normal file
View File

@ -0,0 +1,62 @@
#include <node_api.h>
#include "../../js-native-api/common.h"
// Testing calling into JavaScript
static void ThreadSafeFunctionFinalize(napi_env env,
void* finalize_data,
void* finalize_hint) {
napi_ref js_func_ref = (napi_ref)finalize_data;
napi_value js_func;
napi_value recv;
NODE_API_CALL_RETURN_VOID(
env, napi_get_reference_value(env, js_func_ref, &js_func));
NODE_API_CALL_RETURN_VOID(env, napi_get_global(env, &recv));
NODE_API_CALL_RETURN_VOID(
env, napi_call_function(env, recv, js_func, 0, NULL, NULL));
NODE_API_CALL_RETURN_VOID(env, napi_delete_reference(env, js_func_ref));
}
// Testing calling into JavaScript
static napi_value CallIntoModule(napi_env env, napi_callback_info info) {
size_t argc = 4;
napi_value argv[4];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, argv, NULL, NULL));
napi_ref finalize_func;
NODE_API_CALL(env, napi_create_reference(env, argv[3], 1, &finalize_func));
napi_threadsafe_function tsfn;
NODE_API_CALL(env,
napi_create_threadsafe_function(env,
argv[0],
argv[1],
argv[2],
0,
1,
finalize_func,
ThreadSafeFunctionFinalize,
NULL,
NULL,
&tsfn));
NODE_API_CALL(env,
napi_call_threadsafe_function(tsfn, NULL, napi_tsfn_blocking));
NODE_API_CALL(env, napi_release_threadsafe_function(tsfn, napi_tsfn_release));
return NULL;
}
// Module init
static napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor properties[] = {
DECLARE_NODE_API_PROPERTY("CallIntoModule", CallIntoModule),
};
NODE_API_CALL(
env,
napi_define_properties(env,
exports,
sizeof(properties) / sizeof(properties[0]),
properties));
return exports;
}
NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)

26
test/node-api/test_threadsafe_function/test_uncaught_exception.js
View File

@ -1,27 +1,7 @@
'use strict';
// Flags: --force-node-api-uncaught-exceptions-policy
const common = require('../../common');
const assert = require('assert');
const binding = require(`./build/${common.buildType}/binding`);
const binding = require(`./build/${common.buildType}/test_uncaught_exception`);
const { testUncaughtException } = require('./uncaught_exception');
const callbackCheck = common.mustCall((err) => {
assert.throws(() => { throw err; }, /callback error/);
process.removeListener('uncaughtException', callbackCheck);
process.on('uncaughtException', finalizerCheck);
});
const finalizerCheck = common.mustCall((err) => {
assert.throws(() => { throw err; }, /finalizer error/);
});
process.on('uncaughtException', callbackCheck);
binding.CallIntoModule(
common.mustCall(() => {
throw new Error('callback error');
}),
{},
'resource_name',
common.mustCall(function finalizer() {
throw new Error('finalizer error');
}),
);
testUncaughtException(binding);

8
test/node-api/test_threadsafe_function/test_uncaught_exception_v9.js Normal file
View File

@ -0,0 +1,8 @@
'use strict';
// Flags: --force-node-api-uncaught-exceptions-policy
const common = require('../../common');
const binding = require(`./build/${common.buildType}/test_uncaught_exception_v9`);
const { testUncaughtException } = require('./uncaught_exception');
testUncaughtException(binding);

31
test/node-api/test_threadsafe_function/uncaught_exception.js Normal file
View File

@ -0,0 +1,31 @@
'use strict';
const common = require('../../common');
const assert = require('assert');
function testUncaughtException(binding) {
const callbackCheck = common.mustCall((err) => {
assert.throws(() => { throw err; }, /callback error/);
process.removeListener('uncaughtException', callbackCheck);
process.on('uncaughtException', finalizerCheck);
});
const finalizerCheck = common.mustCall((err) => {
assert.throws(() => { throw err; }, /finalizer error/);
});
process.on('uncaughtException', callbackCheck);
binding.CallIntoModule(
common.mustCall(() => {
throw new Error('callback error');
}),
{},
'resource_name',
common.mustCall(function finalizer() {
throw new Error('finalizer error');
}),
);
}
module.exports = {
testUncaughtException,
};