llvm-project/llvm/lib/Support
Duncan P. N. Exon Smith 6eeaff169d Support: Stop relying on iterator auto-conversion, NFC
Stop relying on ilist implicit conversions from `value_type&` to
`iterator` in YAMLParser.cpp.

I eventually want to outlaw this entirely.  It encourages
`getNextNode()` and `getPrevNode()` in iterator logic, which is
extremely fragile (and relies on them never returning `nullptr`).

FTR, there's nothing nefarious going on in this case, it was just easy
to clean up since the callers really wanted iterators to begin with.

llvm-svn: 249767
2015-10-08 22:47:55 +00:00
..
Unix Fix Clang-tidy modernize-use-nullptr warnings in source directories and generated files; other minor cleanups. 2015-10-06 23:24:35 +00:00
Windows Windows: Fixed sys::findProgramByName to work with files containing dot in their name. 2015-10-08 16:03:19 +00:00
APFloat.cpp Remove roundingMode argument in APFloat::mod 2015-09-21 19:29:25 +00:00
APInt.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
APSInt.cpp ADT: Add a string APSInt constructor. 2015-06-23 18:22:10 +00:00
ARMBuildAttrs.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
ARMWinEH.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Allocator.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Atomic.cpp
BlockFrequency.cpp Fixed a bug that BranchProbability is not defined in BlockFrequency.cpp. NFC. 2015-09-11 02:47:30 +00:00
BranchProbability.cpp [BranchProbability] Manually round the floating point output. 2015-09-26 10:09:36 +00:00
CMakeLists.txt Revert r247692: Replace Triple with a new TargetTuple in MCTargetDesc/* and related. NFC. 2015-09-15 16:17:27 +00:00
COM.cpp Make an RAII com initializer. 2015-04-27 17:19:26 +00:00
COPYRIGHT.regex
CommandLine.cpp There is only one saver of strings. 2015-08-13 01:07:02 +00:00
Compression.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
ConvertUTF.c
ConvertUTFWrapper.cpp Make UTF8->UTF16 conversion null terminate output on empty input. 2015-02-08 18:08:51 +00:00
CrashRecoveryContext.cpp Add a comment. 2015-08-07 17:32:06 +00:00
DAGDeltaAlgorithm.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
DataExtractor.cpp
DataStream.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Debug.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
DeltaAlgorithm.cpp
Dwarf.cpp Debug info: Add dwarf backend support for DIModule. 2015-06-30 02:13:04 +00:00
DynamicLibrary.cpp Add more wrappers for symbol APIs to the C API. 2015-06-09 15:57:30 +00:00
Errno.cpp Silence warning: variable 'buffer' set but not used. 2014-12-04 21:36:38 +00:00
ErrorHandling.cpp [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
FileOutputBuffer.cpp Remove temporary file on signal. 2015-09-18 15:17:53 +00:00
FileUtilities.cpp
FoldingSet.cpp [ADT] Teach FoldingSet to be movable. 2015-08-16 23:17:27 +00:00
FormattedStream.cpp Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used. 2015-03-23 19:32:43 +00:00
GraphWriter.cpp [Support] Reapply r245289 "Always wait for GraphViz before opening the viewer" 2015-09-18 10:56:30 +00:00
Hashing.cpp
Host.cpp [ADT] Switch a bunch of places in LLVM that were doing single-character 2015-09-10 06:12:31 +00:00
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
JamCRC.cpp [MC] Add support for generating COFF CRCs 2015-09-01 21:23:58 +00:00
LEB128.cpp
LLVMBuild.txt
LineIterator.cpp Add CRLF support to LineIterator. 2014-11-03 14:09:47 +00:00
Locale.cpp Add #include llvm-config.h to Locale.cpp which depends on LLVM_ON_WIN32. 2015-09-11 13:22:47 +00:00
LockFileManager.cpp Reapply "Use gethostuuid() on Mac to identify hosts for LockFileManager" 2015-06-29 22:16:39 +00:00
MD5.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Makefile
ManagedStatic.cpp Support: Clean up TSan annotations. 2015-08-18 22:31:24 +00:00
MathExtras.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Memory.cpp
MemoryBuffer.cpp [UB] Fix yet another use of memcpy with a null pointer argument. I think 2015-08-04 01:00:56 +00:00
MemoryObject.cpp Make readBytes pure virtual. Every real implementation has it. 2014-11-12 02:30:38 +00:00
Mutex.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Options.cpp Defining a new API for debug options that doesn't rely on static global cl::opts. 2014-10-15 21:54:35 +00:00
Path.cpp [Support] Add a version of fs::make_absolute with a custom CWD. 2015-10-05 13:02:43 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp Add functions to save and restore the PrettyStackTrace state. 2015-08-07 17:47:03 +00:00
Process.cpp Assert that Process::FindInEnvPath() is passed a relative path. 2015-04-24 22:18:46 +00:00
Program.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
README.txt.system
RWMutex.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
RandomNumberGenerator.cpp Add missing include that MSVC complains about. 2015-03-23 18:19:41 +00:00
Regex.cpp Remove more superfluous .str() and replace std::string concatenation with Twine. 2015-03-30 15:42:36 +00:00
ScaledNumber.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp Rename RunCallBacksToRun to llvm::sys::RunSignalHandlers 2015-07-22 21:11:17 +00:00
SmallPtrSet.cpp Sync the __builtin_expects for our 3 quadratically probed hash table implementations. 2015-02-23 16:41:36 +00:00
SmallVector.cpp [ADT] Assert that SmallVectorBase::grow_pod() successfully reallocates memory. 2015-06-09 09:47:46 +00:00
SourceMgr.cpp MIR Serialization: Connect the machine function analysis pass to the MIR parser. 2015-06-15 20:30:22 +00:00
SpecialCaseList.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
Statistic.cpp Support: Clean up TSan annotations. 2015-08-18 22:31:24 +00:00
StreamingMemoryObject.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
StringExtras.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
StringMap.cpp Sync the __builtin_expects for our 3 quadratically probed hash table implementations. 2015-02-23 16:41:36 +00:00
StringPool.cpp
StringRef.cpp [ADT] Rewrite the StringRef::find implementation to be simpler, clearer, 2015-09-10 11:17:49 +00:00
StringSaver.cpp There is only one saver of strings. 2015-08-13 01:07:02 +00:00
SystemUtils.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
TargetParser.cpp [ARM] Handle +t2dsp feature as an ArchExtKind in ARMTargetParser.def 2015-09-24 17:31:16 +00:00
TargetRegistry.cpp Readdress r236990, use of static members on a non-static variable. 2015-05-11 22:20:48 +00:00
ThreadLocal.cpp ThreadLocal: Move Unix-specific code out of Support/ThreadLocal.cpp 2014-12-15 01:19:53 +00:00
Threading.cpp Revert 220932. 2014-11-05 04:44:31 +00:00
TimeValue.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Timer.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
ToolOutputFile.cpp
Triple.cpp [ADT] Micro-optimize the Triple constructor by doing a single split and 2015-09-10 07:51:43 +00:00
Twine.cpp Reformat. 2015-05-25 01:43:34 +00:00
Unicode.cpp
Valgrind.cpp Support: Clean up TSan annotations. 2015-08-18 22:31:24 +00:00
Watchdog.cpp
YAMLParser.cpp Support: Stop relying on iterator auto-conversion, NFC 2015-10-08 22:47:55 +00:00
YAMLTraits.cpp [YAMLTraits] Use StringRef::copy. No functionality change. 2015-08-05 14:16:38 +00:00
circular_raw_ostream.cpp
raw_os_ostream.cpp
raw_ostream.cpp Fix GCC warning: extra `;' [-Wpedantic]. 2015-08-13 18:10:19 +00:00
regcclass.h
regcname.h
regcomp.c Use wider type for overflow check on LLP64 platforms like Win64, found by clang-cl -Wtautological 2015-02-26 21:07:30 +00:00
regengine.inc
regerror.c
regex2.h
regex_impl.h
regexec.c
regfree.c
regstrlcpy.c
regutils.h

README.txt.system

Design Of lib/System
====================

The software in this directory is designed to completely shield LLVM from any
and all operating system specific functionality. It is not intended to be a
complete operating system wrapper (such as ACE), but only to provide the
functionality necessary to support LLVM.

The software located here, of necessity, has very specific and stringent design
rules. Violation of these rules means that cracks in the shield could form and
the primary goal of the library is defeated. By consistently using this library,
LLVM becomes more easily ported to new platforms since the only thing requiring
porting is this library.

Complete documentation for the library can be found in the file:
  llvm/docs/SystemLibrary.html
or at this URL:
  http://llvm.org/docs/SystemLibrary.html

While we recommend that you read the more detailed documentation, for the
impatient, here's a high level summary of the library's requirements.

 1. No system header files are to be exposed through the interface.
 2. Std C++ and Std C header files are okay to be exposed through the interface.
 3. No exposed system-specific functions.
 4. No exposed system-specific data.
 5. Data in lib/System classes must use only simple C++ intrinsic types.
 6. Errors are handled by returning "true" and setting an optional std::string
 7. Library must not throw any exceptions, period.
 8. Interface functions must not have throw() specifications.
 9. No duplicate function impementations are permitted within an operating
    system class.

To accomplish these requirements, the library has numerous design criteria that
must be satisfied. Here's a high level summary of the library's design criteria:

 1. No unused functionality (only what LLVM needs)
 2. High-Level Interfaces
 3. Use Opaque Classes
 4. Common Implementations
 5. Multiple Implementations
 6. Minimize Memory Allocation
 7. No Virtual Methods