llvm-project/clang/lib/Frontend/Rewrite
JF Bastien 0e82895826 BitStream reader: propagate errors
The bitstream reader handles errors poorly. This has two effects:

 * Bugs in file handling (especially modules) manifest as an "unexpected end of
   file" crash
 * Users of clang as a library end up aborting because the code unconditionally
   calls `report_fatal_error`

The bitstream reader should be more resilient and return Expected / Error as
soon as an error is encountered, not way late like it does now. This patch
starts doing so and adopting the error handling where I think it makes sense.
There's plenty more to do: this patch propagates errors to be minimally useful,
and follow-ups will propagate them further and improve diagnostics.

https://bugs.llvm.org/show_bug.cgi?id=42311
<rdar://problem/33159405>

Differential Revision: https://reviews.llvm.org/D63518

llvm-svn: 364464
2019-06-26 19:50:12 +00:00
..
CMakeLists.txt Attempt to fix shared library build: RewriteFrontend depends on Serialization after r305116. 2017-06-09 22:02:33 +00:00
FixItRewriter.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
FrontendActions.cpp BitStream reader: propagate errors 2019-06-26 19:50:12 +00:00
HTMLPrint.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
InclusionRewriter.cpp [Preprocessor] Add a note with framework location for "file not found" error. 2019-02-05 22:34:55 +00:00
RewriteMacros.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
RewriteModernObjC.cpp Convert MemberExpr creation and serialization to work the same way as 2019-06-06 23:24:15 +00:00
RewriteObjC.cpp Convert MemberExpr creation and serialization to work the same way as 2019-06-06 23:24:15 +00:00
RewriteTest.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00