Re: Legalize throwing destructors! D&#39;s scope(failure) and scope(success) in C++

EP>stack_unwinding это маленькая header-only библиотека, которая реализует примитив(class unwinding_indicator) позволяющий определить, был ли вызван деструктор объекта из-за раскрутки стэка или "нормальным" образом

Интегрирована в Facebook.Folly:

Added SCOPE_FAIL and SCOPE_SUCCESS macros in non-portable C++.

Summary:
Added SCOPE_FAIL and SCOPE_SUCCESS macros in non-portable C++. The macros are similar to D's scope(failure) and scope(success).
Currently the supported platforms are GCC and MSVC. For all others, std::uncaught_exception() is used, which will fail if the macros are used in a destructor called during stack unwinding.
@override-unit-failures

Test Plan:
1. Added new unit test to ScopeGuardTest.cpp.
2. Ran fbconfig -r folly && fbmake dbg
3. Ran _build/dbg/folly/test/scope_guard_test to make sure my unit test was running and passing.

Reviewed By: andrei.alexandrescu@fb.com

FB internal diff: D1033621

	От:	Evgeny.Panasyuk
	Дата:	11.01.14 11:19
	Оценка:	20 (2)