llvm-project.git/clang/test/Modules/using-decl.cpp, branch main

Revert r240335.

2015-11-12T21:55:58+00:00

This failed to solve the problem it was aimed at, and introduced just as many
issues as it resolved. Realistically, we need to deal with the possibility that
multiple modules might define different internal linkage symbols with the same
name, and this isn't a problem unless two such symbols are simultaneously
visible.

The case where two modules define equivalent internal linkage symbols is
handled by r252063: if lookup finds multiple sufficiently-similar entities from
different modules, we just pick one of them as an extension (but we keep them
separate).

llvm-svn: 252957

[modules] Make sure we make hidden UsingShadowDecls visible to redeclaration

2015-09-15T18:51:56+00:00

lookup for the UsingShadowDecls themselves.

llvm-svn: 247714

[modules] A using-declaration doesn't introduce a new entity, just a new name

2015-09-15T01:28:55+00:00

for an existing entity, and as such a using-declaration doesn't need to
conflict with a hidden entity (nor vice versa).

llvm-svn: 247654

[modules] Simplify -cc1 interface for enabling implicit module maps.

2015-06-16T00:08:24+00:00

We used to have a flag to enable module maps, and two more flags to enable
implicit module maps. This is all redundant; we don't need any flag for
enabling module maps in the abstract, and we don't usually have -fno- flags for
-cc1. We now have just a single flag, -fimplicit-module-maps, that enables
implicitly searching the file system for module map files and loading them.

The driver interface is unchanged for now. We should probably rename
-fmodule-maps to -fimplicit-module-maps at some point.

llvm-svn: 239789

Make UsingShadowDecls redeclarable. This fixes some visibility problems with

2013-10-23T02:17:46+00:00

modules.

With this fixed, I no longer see any test regressions in the libc++ test suite
when enabling a single-module module.map for libc++ (other than issues with my
system headers).

llvm-svn: 193219