Pavel Labath d0775d3cfb Add error handling to the DataExtractor class ... Summary: This is motivated by D63591, where we realized that there isn't a really good way of telling whether a DataExtractor is reading actual data, or is it just returning default values because it reached the end of the buffer. This patch resolves that by providing a new "Cursor" class. A Cursor object encapsulates two things: - the current position/offset in the DataExtractor - an error object Storing the error object inside the Cursor enables one to use the same pattern as the std::{io}stream API, where one can blindly perform a sequence of reads and only check for errors once at the end of the operation. Similarly to the stream API, as soon as we encounter one error, all of the subsequent operations are skipped (return default values) too, even if the would suceed with clear error state. Unlike the std::stream API (but in line with other llvm APIs), we force the error state to be checked through usage of llvm::Error. Reviewers: probinson, dblaikie, JDevlieghere, aprantl, echristo Subscribers: kristina, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63713 llvm-svn: 370042		2019-08-27 11:24:08 +00:00
..
Unix	[Support] Improve readNativeFile(Slice) interface	2019-08-22 08:13:30 +00:00
Windows	[Support] Improve readNativeFile(Slice) interface	2019-08-22 08:13:30 +00:00
AArch64TargetParser.cpp	[AArch64][SVE2] Rename bitperm feature to sve2-bitperm	2019-07-26 15:57:50 +00:00
Allocator.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
AMDGPUMetadata.cpp	[AMDGPU] Added a new metadata for multi grid sync implicit argument	2019-07-05 16:05:17 +00:00
APFloat.cpp	[clang] Add storage for APValue in ConstantExpr	2019-06-15 10:24:47 +00:00
APInt.cpp	[C++2a] Add __builtin_bit_cast, used to implement std::bit_cast	2019-07-02 18:28:13 +00:00
APSInt.cpp	Fix parameter name comments using clang-tidy. NFC.	2019-07-16 04:46:31 +00:00
ARMAttributeParser.cpp	Fix failing test on ARM buildbot	2019-06-14 13:45:21 +00:00
ARMBuildAttrs.cpp	[ARM] add target arch definitions for 8.1-M and MVE	2019-05-30 12:57:04 +00:00
ARMTargetParser.cpp	[TargetParser][ARM] Account dependencies when processing target features	2019-07-14 20:31:15 +00:00
ARMWinEH.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Atomic.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BinaryStreamError.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BinaryStreamReader.cpp	[Support] Add LEB128 support to BinaryStreamReader/Writer.	2019-04-17 15:38:27 +00:00
BinaryStreamRef.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BinaryStreamWriter.cpp	[Support] Add LEB128 support to BinaryStreamReader/Writer.	2019-04-17 15:38:27 +00:00
BlockFrequency.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BranchProbability.cpp	[BranchProbability] Delete a redundant overflow check	2019-06-15 10:09:59 +00:00
BuryPointer.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CachePruning.cpp	Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC	2019-08-05 05:43:48 +00:00
Chrono.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
circular_raw_ostream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CMakeLists.txt	[Support] Re-introduce the RWMutexImpl for macOS < 10.12	2019-08-15 23:07:20 +00:00
CodeGenCoverage.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
COM.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CommandLine.cpp	Revert Recommit "[CommandLine] Remove OptionCategory and SubCommand caches from the Option class."	2019-07-11 08:54:28 +00:00
Compression.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ConvertUTF.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ConvertUTFWrapper.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp	[Support] Replace sys::Mutex with their standard equivalents.	2019-08-19 19:49:57 +00:00
CRC.cpp	Attempt to recommit r357901	2019-04-08 12:31:12 +00:00
DAGDeltaAlgorithm.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DataExtractor.cpp	Add error handling to the DataExtractor class	2019-08-27 11:24:08 +00:00
Debug.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DebugCounter.cpp	Print out DebugCounter info with -print-debug-counter	2018-10-23 21:51:56 +00:00
DeltaAlgorithm.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DJB.cpp	[DJB] Fix variable case after D61178	2019-04-27 15:33:22 +00:00
DynamicLibrary.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Errno.cpp	Remove some autoconf references from docs and comments	2019-07-03 09:57:59 +00:00
Error.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
ErrorHandling.cpp	[Support] Move the static initializer install_out_memory_new_handler to InitLLVM	2019-07-12 16:23:25 +00:00
FileCheck.cpp	Do a sweep of symbol internalization. NFC.	2019-08-23 19:59:23 +00:00
FileCollector.cpp	Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC	2019-08-05 05:43:48 +00:00
FileOutputBuffer.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
FileUtilities.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FoldingSet.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FormattedStream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FormatVariadic.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
GlobPattern.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
GraphWriter.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Hashing.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Host.cpp	[X86] Support -march=tigerlake	2019-08-12 01:29:46 +00:00
InitLLVM.cpp	[Support] Move the static initializer install_out_memory_new_handler to InitLLVM	2019-07-12 16:23:25 +00:00
IntEqClasses.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
IntervalMap.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ItaniumManglingCanonicalizer.cpp	Update more file headers across all of the LLVM projects in the monorepo	2019-01-19 10:56:40 +00:00
JamCRC.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
JSON.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
KnownBits.cpp	[KnownBits] Add computeForAddCarry()	2019-04-12 18:18:08 +00:00
LEB128.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
LineIterator.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
LLVMBuild.txt	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Locale.cpp	[Windows] Convert from UTF-8 to UTF-16 when writing to a Windows console	2018-09-05 00:08:56 +00:00
LockFileManager.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
LowLevelType.cpp	Fix parameter name comments using clang-tidy. NFC.	2019-07-16 04:46:31 +00:00
ManagedStatic.cpp	[Support] Replace sys::Mutex with their standard equivalents.	2019-08-19 19:49:57 +00:00
MathExtras.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
MD5.cpp
Memory.cpp	[Support] Renamed member 'Size' to 'AllocatedSize' in MemoryBlock and OwningMemoryBlock.	2019-05-20 20:53:05 +00:00
MemoryBuffer.cpp	[Support] Improve readNativeFile(Slice) interface	2019-08-22 08:13:30 +00:00
NativeFormatting.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Optional.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Options.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Parallel.cpp	Parallel: only allow the first TaskGroup to run tasks parallelly	2019-04-25 11:33:30 +00:00
Path.cpp	[Path] Fix bug in make_absolute logic	2019-08-06 15:46:45 +00:00
PluginLoader.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
PrettyStackTrace.cpp	Make GCC happy about attribute location	2019-07-25 16:58:15 +00:00
Process.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Program.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
RandomNumberGenerator.cpp	[CommandLine] Provide parser<unsigned long> instantiation to allow cl::opt<uint64_t> on LP64 platforms	2019-04-24 02:40:20 +00:00
raw_os_ostream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
raw_ostream.cpp	Revert "raw_ostream: add operator<< overload for std::error_code"	2019-08-14 13:59:04 +00:00
regcomp.c	Allow Compiler.h to be included in C files and fix fallthrough warnings	2019-08-23 17:25:21 +00:00
regengine.inc	[ADT] Replace std::isprint by llvm::isPrint.	2018-07-26 15:31:41 +00:00
regerror.c
regex2.h
regex_impl.h	Remove trailing space	2018-07-30 19:41:25 +00:00
Regex.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp	[RWMutex] Simplify availability check	2019-08-16 21:25:40 +00:00
ScaledNumber.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ScopedPrinter.cpp
SHA1.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Signals.cpp	Only use argv[0] as the main executable name if it exists.	2019-04-15 22:07:56 +00:00
Signposts.cpp	[Support] Fix Wundef warning	2019-08-15 10:05:22 +00:00
SmallPtrSet.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SmallVector.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SourceMgr.cpp	Simplify std::lower_bound with llvm::{bsearch,lower_bound}. NFC	2019-06-21 05:40:31 +00:00
SpecialCaseList.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
Statistic.cpp	Use llvm::stable_sort	2019-04-23 14:51:27 +00:00
StringExtras.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringMap.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringPool.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringRef.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringSaver.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SymbolRemappingReader.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SystemUtils.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TargetParser.cpp	[AMDGPU] gfx908 target	2019-07-09 18:10:06 +00:00
TargetRegistry.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TarWriter.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Threading.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ThreadLocal.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ThreadPool.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TimeProfiler.cpp	[Support][Time profiler] Make FE codegen blocks to be inside frontend blocks	2019-08-19 22:58:26 +00:00
Timer.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
ToolOutputFile.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TrigramIndex.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Triple.cpp	[triple] Use 'macabi' environment name for the Mac Catalyst triples	2019-07-03 01:02:43 +00:00
Twine.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Unicode.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
UnicodeCaseFold.cpp
Valgrind.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
VersionTuple.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
VirtualFileSystem.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
Watchdog.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
WithColor.cpp	Revert r367649: Improve raw_ostream so that you can "write" colors using operator<<	2019-08-02 07:22:34 +00:00
xxhash.cpp	Make ICF log output order deterministic.	2018-07-31 18:04:58 +00:00
YAMLParser.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
YAMLTraits.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00
Z3Solver.cpp	[llvm] Migrate llvm::make_unique to std::make_unique	2019-08-15 15:54:37 +00:00