diff options
| author | David Blaikie <dblaikie@gmail.com> | 2013-02-18 22:06:02 +0000 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2013-02-18 22:06:02 +0000 |
| commit | 39e6ab4be93d9c5e729a578ddd9d415cd2d49872 (patch) | |
| tree | fc9c9aad9c0b7b392ff2b08bb1d5df59c8d6c048 /lib/Sema/SemaTemplateVariadic.cpp | |
| parent | 9ba7627d25a7555b1afff04f685d2f161974e682 (diff) | |
Replace TypeLoc llvm::cast support to be well-defined.
The TypeLoc hierarchy used the llvm::cast machinery to perform undefined
behavior by casting pointers/references to TypeLoc objects to derived types
and then using the derived copy constructors (or even returning pointers to
derived types that actually point to the original TypeLoc object).
Some context is in this thread:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-December/056804.html
Though it's spread over a few months which can be hard to read in the mail
archive.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175462 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaTemplateVariadic.cpp')
| -rw-r--r-- | lib/Sema/SemaTemplateVariadic.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Sema/SemaTemplateVariadic.cpp b/lib/Sema/SemaTemplateVariadic.cpp index c13a2f6ce9..f250e30565 100644 --- a/lib/Sema/SemaTemplateVariadic.cpp +++ b/lib/Sema/SemaTemplateVariadic.cpp @@ -462,7 +462,8 @@ TypeSourceInfo *Sema::CheckPackExpansion(TypeSourceInfo *Pattern, return 0; TypeSourceInfo *TSResult = Context.CreateTypeSourceInfo(Result); - PackExpansionTypeLoc TL = cast<PackExpansionTypeLoc>(TSResult->getTypeLoc()); + PackExpansionTypeLoc TL = + TSResult->getTypeLoc().castAs<PackExpansionTypeLoc>(); TL.setEllipsisLoc(EllipsisLoc); // Copy over the source-location information from the type. |