1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798 |
- /*
- * Copyright 2012-present Facebook, Inc.
- *
- * 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 <iostream>
- #include <stdexcept>
- #include <folly/experimental/exception_tracer/ExceptionTracer.h>
- // clang-format off
- [[noreturn]] void bar() {
- throw std::runtime_error("hello");
- }
- // clang-format on
- void dumpExceptions(const char* prefix) {
- std::cerr << "--- " << prefix << "\n";
- auto exceptions = ::folly::exception_tracer::getCurrentExceptions();
- for (auto& exc : exceptions) {
- std::cerr << exc << "\n";
- }
- }
- void foo() {
- try {
- try {
- bar();
- } catch (const std::exception& e) {
- dumpExceptions("foo: simple catch");
- bar();
- }
- } catch (const std::exception& e) {
- dumpExceptions("foo: catch, exception thrown from previous catch block");
- }
- }
- [[noreturn]] void baz() {
- try {
- try {
- bar();
- } catch (...) {
- dumpExceptions("baz: simple catch");
- throw;
- }
- } catch (const std::exception& e) {
- dumpExceptions("baz: catch rethrown exception");
- throw "hello";
- }
- }
- void testExceptionPtr1() {
- std::exception_ptr exc;
- try {
- bar();
- } catch (...) {
- exc = std::current_exception();
- }
- try {
- std::rethrow_exception(exc);
- } catch (...) {
- dumpExceptions("std::rethrow_exception 1");
- }
- }
- void testExceptionPtr2() {
- std::exception_ptr exc;
- try {
- throw std::out_of_range("x");
- } catch (...) {
- exc = std::current_exception();
- }
- try {
- std::rethrow_exception(exc);
- } catch (...) {
- dumpExceptions("std::rethrow_exception 2");
- }
- }
- int main(int /* argc */, char* /* argv */ []) {
- foo();
- testExceptionPtr1();
- testExceptionPtr2();
- baz();
- // no return because baz() is [[noreturn]]
- }
|