llvm-project/clang/lib/Serialization
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
..
ASTCommon.cpp [OPENMP 5.0]Add initial support for 'allocate' directive. 2019-03-07 17:54:44 +00:00
ASTCommon.h [OPENMP 5.0]Add initial support for 'allocate' directive. 2019-03-07 17:54:44 +00:00
ASTReader.cpp BitStream reader: propagate errors 2019-06-26 19:50:12 +00:00
ASTReaderDecl.cpp BitStream reader: propagate errors 2019-06-26 19:50:12 +00:00
ASTReaderInternals.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ASTReaderStmt.cpp BitStream reader: propagate errors 2019-06-26 19:50:12 +00:00
ASTWriter.cpp [clang] Add storage for APValue in ConstantExpr 2019-06-15 10:24:47 +00:00
ASTWriterDecl.cpp [C++20] add Basic consteval specifier 2019-06-14 08:56:20 +00:00
ASTWriterStmt.cpp [clang] Add storage for APValue in ConstantExpr 2019-06-15 10:24:47 +00:00
CMakeLists.txt Modules: Rename MemoryBufferCache to InMemoryModuleCache 2019-03-09 17:33:56 +00:00
GeneratePCH.cpp Modules: Add LangOptions::CacheGeneratedPCH 2019-03-12 18:38:04 +00:00
GlobalModuleIndex.cpp BitStream reader: propagate errors 2019-06-26 19:50:12 +00:00
InMemoryModuleCache.cpp Modules: Invalidate out-of-date PCMs as they're discovered 2019-03-09 17:44:01 +00:00
Module.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ModuleFileExtension.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ModuleManager.cpp Range-style std::find{,_if} -> llvm::find{,_if}. NFC 2019-03-31 08:48:19 +00:00
MultiOnDiskHashTable.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
PCHContainerOperations.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00