Commit Graph

3 Commits

Author SHA1 Message Date
Reid Kleckner bd6942eb21 Re-land "[MS] Fix assert handling enum forward decls in hasVisibleDefinition"
This reverts commit 9b2ab41037 and
reinstates e62dc1f625 with changes.

This fix is speculative, since I don't have access to a crashing test
case for the old code, and fixing the crash bug on Windows when C++20 is
enabled seems more important than running it down.
2020-04-23 16:22:01 -07:00
Rumeet Dhindsa 9b2ab41037 Revert "[MS] Fix assert handling enum forward decls in hasVisibleDefinition"
This reverts commit e62dc1f625.

Reverting as per discussion with the patch author.
This patch causes module import error, but there was no intended
behavior change for code that does not use Microsoft extensions.
2020-04-20 10:40:27 -07:00
Reid Kleckner e62dc1f625 [MS] Fix assert handling enum forward decls in hasVisibleDefinition
An enum may be considered to be a complete type if it was forward
declared. It may be declared with a fixed underlying type, or, in MSVC
compatiblity mode, with no type at all.

Previously, the code was written with special handling for fixed enums.
I generalized the code to check if the underlying integer type is known,
which should be the case when targetting the MSVC C++ ABI.

Fixes PR45409
2020-04-03 16:46:07 -07:00