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Update the MemoryBuffer API to use ErrorOr.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212405 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2014-07-06 17:43:13 +00:00
parent 04e43e64a9
commit 7cba2a973f
35 changed files with 296 additions and 279 deletions
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47
include/llvm/Support/MemoryBuffer.h
View File

@ -19,6 +19,7 @@
#include "llvm/Support/CBindingWrapping.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorOr.h"
#include <memory>
#include <system_error>
@ -60,19 +61,17 @@ public:
return "Unknown buffer";
}
/// getFile - Open the specified file as a MemoryBuffer, returning a new
/// MemoryBuffer if successful, otherwise returning null. If FileSize is
/// specified, this means that the client knows that the file exists and that
/// it has the specified size.
/// Open the specified file as a MemoryBuffer, returning a new MemoryBuffer
/// if successful, otherwise returning null. If FileSize is specified, this
/// means that the client knows that the file exists and that it has the
/// specified size.
///
/// \param IsVolatileSize Set to true to indicate that the file size may be
/// changing, e.g. when libclang tries to parse while the user is
/// editing/updating the file.
static std::error_code getFile(Twine Filename,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize = -1,
bool RequiresNullTerminator = true,
bool IsVolatileSize = false);
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getFile(Twine Filename, int64_t FileSize = -1,
bool RequiresNullTerminator = true, bool IsVolatileSize = false);
/// Given an already-open file descriptor, map some slice of it into a
/// MemoryBuffer. The slice is specified by an \p Offset and \p MapSize.
@ -81,10 +80,9 @@ public:
/// \param IsVolatileSize Set to true to indicate that the file size may be
/// changing, e.g. when libclang tries to parse while the user is
/// editing/updating the file.
static std::error_code getOpenFileSlice(int FD, const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
uint64_t MapSize, int64_t Offset,
bool IsVolatileSize = false);
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getOpenFileSlice(int FD, const char *Filename, uint64_t MapSize,
int64_t Offset, bool IsVolatileSize = false);
/// Given an already-open file descriptor, read the file and return a
/// MemoryBuffer.
@ -92,11 +90,9 @@ public:
/// \param IsVolatileSize Set to true to indicate that the file size may be
/// changing, e.g. when libclang tries to parse while the user is
/// editing/updating the file.
static std::error_code getOpenFile(int FD, const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
uint64_t FileSize,
bool RequiresNullTerminator = true,
bool IsVolatileSize = false);
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getOpenFile(int FD, const char *Filename, uint64_t FileSize,
bool RequiresNullTerminator = true, bool IsVolatileSize = false);
/// getMemBuffer - Open the specified memory range as a MemoryBuffer. Note
/// that InputData must be null terminated if RequiresNullTerminator is true.
@ -123,16 +119,13 @@ public:
static MemoryBuffer *getNewUninitMemBuffer(size_t Size,
StringRef BufferName = "");
/// getSTDIN - Read all of stdin into a file buffer, and return it.
/// If an error occurs, this returns null and sets ec.
static std::error_code getSTDIN(std::unique_ptr<MemoryBuffer> &Result);
/// Read all of stdin into a file buffer, and return it.
static ErrorOr<std::unique_ptr<MemoryBuffer>> getSTDIN();
/// getFileOrSTDIN - Open the specified file as a MemoryBuffer, or open stdin
/// if the Filename is "-". If an error occurs, this returns null and sets
/// ec.
static std::error_code getFileOrSTDIN(StringRef Filename,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize = -1);
/// Open the specified file as a MemoryBuffer, or open stdin if the Filename
/// is "-".
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getFileOrSTDIN(StringRef Filename, int64_t FileSize = -1);
//===--------------------------------------------------------------------===//
// Provided for performance analysis.

9
lib/AsmParser/Parser.cpp
View File

@ -41,14 +41,15 @@ Module *llvm::ParseAssembly(MemoryBuffer *F,
Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err,
LLVMContext &Context) {
std::unique_ptr<MemoryBuffer> File;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, File)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + ec.message());
"Could not open input file: " + EC.message());
return nullptr;
}
return ParseAssembly(File.release(), nullptr, Err, Context);
return ParseAssembly(FileOrErr.get().release(), nullptr, Err, Context);
}
Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,

28
lib/IR/Core.cpp
View File

@ -2606,29 +2606,25 @@ LLVMBool LLVMCreateMemoryBufferWithContentsOfFile(
LLVMMemoryBufferRef *OutMemBuf,
char **OutMessage) {
std::unique_ptr<MemoryBuffer> MB;
std::error_code ec;
if (!(ec = MemoryBuffer::getFile(Path, MB))) {
*OutMemBuf = wrap(MB.release());
return 0;
}
*OutMessage = strdup(ec.message().c_str());
ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr = MemoryBuffer::getFile(Path);
if (std::error_code EC = MBOrErr.getError()) {
*OutMessage = strdup(EC.message().c_str());
return 1;
}
*OutMemBuf = wrap(MBOrErr.get().release());
return 0;
}
LLVMBool LLVMCreateMemoryBufferWithSTDIN(LLVMMemoryBufferRef *OutMemBuf,
char **OutMessage) {
std::unique_ptr<MemoryBuffer> MB;
std::error_code ec;
if (!(ec = MemoryBuffer::getSTDIN(MB))) {
*OutMemBuf = wrap(MB.release());
return 0;
}
*OutMessage = strdup(ec.message().c_str());
ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr = MemoryBuffer::getSTDIN();
if (std::error_code EC = MBOrErr.getError()) {
*OutMessage = strdup(EC.message().c_str());
return 1;
}
*OutMemBuf = wrap(MBOrErr.get().release());
return 0;
}
LLVMMemoryBufferRef LLVMCreateMemoryBufferWithMemoryRange(
const char *InputData,

8
lib/IR/GCOV.cpp
View File

@ -438,12 +438,16 @@ class LineConsumer {
StringRef Remaining;
public:
LineConsumer(StringRef Filename) {
if (std::error_code EC = MemoryBuffer::getFileOrSTDIN(Filename, Buffer)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = BufferOrErr.getError()) {
errs() << Filename << ": " << EC.message() << "\n";
Remaining = "";
} else
} else {
Buffer = std::move(BufferOrErr.get());
Remaining = Buffer->getBuffer();
}
}
bool empty() { return Remaining.empty(); }
void printNext(raw_ostream &OS, uint32_t LineNum) {
StringRef Line;

18
lib/IRReader/IRReader.cpp
View File

@ -51,14 +51,15 @@ static Module *getLazyIRModule(MemoryBuffer *Buffer, SMDiagnostic &Err,
Module *llvm::getLazyIRFileModule(const std::string &Filename, SMDiagnostic &Err,
LLVMContext &Context) {
std::unique_ptr<MemoryBuffer> File;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, File)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + ec.message());
"Could not open input file: " + EC.message());
return nullptr;
}
return getLazyIRModule(File.release(), Err, Context);
return getLazyIRModule(FileOrErr.get().release(), Err, Context);
}
Module *llvm::ParseIR(MemoryBuffer *Buffer, SMDiagnostic &Err,
@ -85,14 +86,15 @@ Module *llvm::ParseIR(MemoryBuffer *Buffer, SMDiagnostic &Err,
Module *llvm::ParseIRFile(const std::string &Filename, SMDiagnostic &Err,
LLVMContext &Context) {
std::unique_ptr<MemoryBuffer> File;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, File)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + ec.message());
"Could not open input file: " + EC.message());
return nullptr;
}
return ParseIR(File.get(), Err, Context);
return ParseIR(FileOrErr.get().get(), Err, Context);
}
//===----------------------------------------------------------------------===//

9
lib/LTO/LTOCodeGenerator.cpp
View File

@ -236,13 +236,14 @@ const void* LTOCodeGenerator::compile(size_t* length,
delete NativeObjectFile;
// read .o file into memory buffer
std::unique_ptr<MemoryBuffer> BuffPtr;
if (std::error_code ec = MemoryBuffer::getFile(name, BuffPtr, -1, false)) {
errMsg = ec.message();
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFile(name, -1, false);
if (std::error_code EC = BufferOrErr.getError()) {
errMsg = EC.message();
sys::fs::remove(NativeObjectPath);
return nullptr;
}
NativeObjectFile = BuffPtr.release();
NativeObjectFile = BufferOrErr.get().release();
// remove temp files
sys::fs::remove(NativeObjectPath);

19
lib/LTO/LTOModule.cpp
View File

@ -69,12 +69,13 @@ bool LTOModule::isBitcodeForTarget(MemoryBuffer *buffer,
LTOModule *LTOModule::createFromFile(const char *path, TargetOptions options,
std::string &errMsg) {
std::unique_ptr<MemoryBuffer> buffer;
if (std::error_code ec = MemoryBuffer::getFile(path, buffer)) {
errMsg = ec.message();
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFile(path);
if (std::error_code EC = BufferOrErr.getError()) {
errMsg = EC.message();
return nullptr;
}
return makeLTOModule(std::move(buffer), options, errMsg);
return makeLTOModule(std::move(BufferOrErr.get()), options, errMsg);
}
LTOModule *LTOModule::createFromOpenFile(int fd, const char *path, size_t size,
@ -87,13 +88,13 @@ LTOModule *LTOModule::createFromOpenFileSlice(int fd, const char *path,
size_t map_size, off_t offset,
TargetOptions options,
std::string &errMsg) {
std::unique_ptr<MemoryBuffer> buffer;
if (std::error_code ec =
MemoryBuffer::getOpenFileSlice(fd, path, buffer, map_size, offset)) {
errMsg = ec.message();
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getOpenFileSlice(fd, path, map_size, offset);
if (std::error_code EC = BufferOrErr.getError()) {
errMsg = EC.message();
return nullptr;
}
return makeLTOModule(std::move(buffer), options, errMsg);
return makeLTOModule(std::move(BufferOrErr.get()), options, errMsg);
}
LTOModule *LTOModule::createFromBuffer(const void *mem, size_t length,

7
lib/Object/Binary.cpp
View File

@ -75,8 +75,9 @@ ErrorOr<Binary *> object::createBinary(std::unique_ptr<MemoryBuffer> &Buffer,
}
ErrorOr<Binary *> object::createBinary(StringRef Path) {
std::unique_ptr<MemoryBuffer> File;
if (std::error_code EC = MemoryBuffer::getFileOrSTDIN(Path, File))
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Path);
if (std::error_code EC = FileOrErr.getError())
return EC;
return createBinary(File);
return createBinary(FileOrErr.get());
}

7
lib/Object/ObjectFile.cpp
View File

@ -83,8 +83,9 @@ ObjectFile::createObjectFile(std::unique_ptr<MemoryBuffer> &Object,
}
ErrorOr<ObjectFile *> ObjectFile::createObjectFile(StringRef ObjectPath) {
std::unique_ptr<MemoryBuffer> File;
if (std::error_code EC = MemoryBuffer::getFile(ObjectPath, File))
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFile(ObjectPath);
if (std::error_code EC = FileOrErr.getError())
return EC;
return createObjectFile(File);
return createObjectFile(FileOrErr.get());
}

5
lib/ProfileData/InstrProfReader.cpp
View File

@ -23,8 +23,11 @@ using namespace llvm;
static std::error_code
setupMemoryBuffer(std::string Path, std::unique_ptr<MemoryBuffer> &Buffer) {
if (std::error_code EC = MemoryBuffer::getFileOrSTDIN(Path, Buffer))
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFileOrSTDIN(Path);
if (std::error_code EC = BufferOrErr.getError())
return EC;
Buffer = std::move(BufferOrErr.get());
// Sanity check the file.
if (Buffer->getBufferSize() > std::numeric_limits<unsigned>::max())

6
lib/Support/CommandLine.cpp
View File

@ -631,9 +631,11 @@ void cl::TokenizeWindowsCommandLine(StringRef Src, StringSaver &Saver,
static bool ExpandResponseFile(const char *FName, StringSaver &Saver,
TokenizerCallback Tokenizer,
SmallVectorImpl<const char *> &NewArgv) {
std::unique_ptr<MemoryBuffer> MemBuf;
if (MemoryBuffer::getFile(FName, MemBuf))
ErrorOr<std::unique_ptr<MemoryBuffer>> MemBufOrErr =
MemoryBuffer::getFile(FName);
if (!MemBufOrErr)
return false;
std::unique_ptr<MemoryBuffer> MemBuf = std::move(MemBufOrErr.get());
StringRef Str(MemBuf->getBufferStart(), MemBuf->getBufferSize());
// If we have a UTF-16 byte order mark, convert to UTF-8 for parsing.

15
lib/Support/FileUtilities.cpp
View File

@ -176,18 +176,21 @@ int llvm::DiffFilesWithTolerance(StringRef NameA,
std::string *Error) {
// Now its safe to mmap the files into memory because both files
// have a non-zero size.
std::unique_ptr<MemoryBuffer> F1;
if (std::error_code ec = MemoryBuffer::getFile(NameA, F1)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> F1OrErr = MemoryBuffer::getFile(NameA);
if (std::error_code EC = F1OrErr.getError()) {
if (Error)
*Error = ec.message();
*Error = EC.message();
return 2;
}
std::unique_ptr<MemoryBuffer> F2;
if (std::error_code ec = MemoryBuffer::getFile(NameB, F2)) {
std::unique_ptr<MemoryBuffer> F1 = std::move(F1OrErr.get());
ErrorOr<std::unique_ptr<MemoryBuffer>> F2OrErr = MemoryBuffer::getFile(NameB);
if (std::error_code EC = F2OrErr.getError()) {
if (Error)
*Error = ec.message();
*Error = EC.message();
return 2;
}
std::unique_ptr<MemoryBuffer> F2 = std::move(F2OrErr.get());
// Okay, now that we opened the files, scan them for the first difference.
const char *File1Start = F1->getBufferStart();

6
lib/Support/LockFileManager.cpp
View File

@ -33,11 +33,13 @@ Optional<std::pair<std::string, int> >
LockFileManager::readLockFile(StringRef LockFileName) {
// Read the owning host and PID out of the lock file. If it appears that the
// owning process is dead, the lock file is invalid.
std::unique_ptr<MemoryBuffer> MB;
if (MemoryBuffer::getFile(LockFileName, MB)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr =
MemoryBuffer::getFile(LockFileName);
if (!MBOrErr) {
sys::fs::remove(LockFileName);
return None;
}
std::unique_ptr<MemoryBuffer> MB = std::move(MBOrErr.get());
StringRef Hostname;
StringRef PIDStr;

107
lib/Support/MemoryBuffer.cpp
View File

@ -152,18 +152,11 @@ MemoryBuffer *MemoryBuffer::getNewMemBuffer(size_t Size, StringRef BufferName) {
return SB;
}
/// getFileOrSTDIN - Open the specified file as a MemoryBuffer, or open stdin
/// if the Filename is "-". If an error occurs, this returns null and fills
/// in *ErrStr with a reason. If stdin is empty, this API (unlike getSTDIN)
/// returns an empty buffer.
std::error_code
MemoryBuffer::getFileOrSTDIN(StringRef Filename,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize) {
ErrorOr<std::unique_ptr<MemoryBuffer>>
MemoryBuffer::getFileOrSTDIN(StringRef Filename, int64_t FileSize) {
if (Filename == "-")
return getSTDIN(Result);
return getFile(Filename, Result, FileSize);
return getSTDIN();
return getFile(Filename, FileSize);
}
@ -212,9 +205,8 @@ public:
};
}
static std::error_code
getMemoryBufferForStream(int FD, StringRef BufferName,
std::unique_ptr<MemoryBuffer> &Result) {
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getMemoryBufferForStream(int FD, StringRef BufferName) {
const ssize_t ChunkSize = 4096*4;
SmallString<ChunkSize> Buffer;
ssize_t ReadBytes;
@ -229,48 +221,43 @@ getMemoryBufferForStream(int FD, StringRef BufferName,
Buffer.set_size(Buffer.size() + ReadBytes);
} while (ReadBytes != 0);
Result.reset(MemoryBuffer::getMemBufferCopy(Buffer, BufferName));
return std::error_code();
std::unique_ptr<MemoryBuffer> Ret(
MemoryBuffer::getMemBufferCopy(Buffer, BufferName));
return std::move(Ret);
}
static std::error_code getFileAux(const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize, bool RequiresNullTerminator,
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getFileAux(const char *Filename, int64_t FileSize, bool RequiresNullTerminator,
bool IsVolatileSize);
std::error_code MemoryBuffer::getFile(Twine Filename,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize,
bool RequiresNullTerminator,
bool IsVolatileSize) {
ErrorOr<std::unique_ptr<MemoryBuffer>>
MemoryBuffer::getFile(Twine Filename, int64_t FileSize,
bool RequiresNullTerminator, bool IsVolatileSize) {
// Ensure the path is null terminated.
SmallString<256> PathBuf;
StringRef NullTerminatedName = Filename.toNullTerminatedStringRef(PathBuf);
return getFileAux(NullTerminatedName.data(), Result, FileSize,
RequiresNullTerminator, IsVolatileSize);
return getFileAux(NullTerminatedName.data(), FileSize, RequiresNullTerminator,
IsVolatileSize);
}
static std::error_code getOpenFileImpl(int FD, const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
uint64_t FileSize, uint64_t MapSize,
int64_t Offset,
bool RequiresNullTerminator,
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getOpenFileImpl(int FD, const char *Filename, uint64_t FileSize,
uint64_t MapSize, int64_t Offset, bool RequiresNullTerminator,
bool IsVolatileSize);
static std::error_code getFileAux(const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize, bool RequiresNullTerminator,
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getFileAux(const char *Filename, int64_t FileSize, bool RequiresNullTerminator,
bool IsVolatileSize) {
int FD;
std::error_code EC = sys::fs::openFileForRead(Filename, FD);
if (EC)
return EC;
std::error_code ret =
getOpenFileImpl(FD, Filename, Result, FileSize, FileSize, 0,
ErrorOr<std::unique_ptr<MemoryBuffer>> Ret =
getOpenFileImpl(FD, Filename, FileSize, FileSize, 0,
RequiresNullTerminator, IsVolatileSize);
close(FD);
return ret;
return Ret;
}
static bool shouldUseMmap(int FD,
@ -321,11 +308,9 @@ static bool shouldUseMmap(int FD,
return true;
}
static std::error_code getOpenFileImpl(int FD, const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
uint64_t FileSize, uint64_t MapSize,
int64_t Offset,
bool RequiresNullTerminator,
static ErrorOr<std::unique_ptr<MemoryBuffer>>
getOpenFileImpl(int FD, const char *Filename, uint64_t FileSize,
uint64_t MapSize, int64_t Offset, bool RequiresNullTerminator,
bool IsVolatileSize) {
static int PageSize = sys::process::get_self()->page_size();
@ -345,7 +330,7 @@ static std::error_code getOpenFileImpl(int FD, const char *Filename,
sys::fs::file_type Type = Status.type();
if (Type != sys::fs::file_type::regular_file &&
Type != sys::fs::file_type::block_file)
return getMemoryBufferForStream(FD, Filename, Result);
return getMemoryBufferForStream(FD, Filename);
FileSize = Status.getSize();
}
@ -355,10 +340,11 @@ static std::error_code getOpenFileImpl(int FD, const char *Filename,
if (shouldUseMmap(FD, FileSize, MapSize, Offset, RequiresNullTerminator,
PageSize, IsVolatileSize)) {
std::error_code EC;
Result.reset(new (NamedBufferAlloc(Filename)) MemoryBufferMMapFile(
RequiresNullTerminator, FD, MapSize, Offset, EC));
std::unique_ptr<MemoryBuffer> Result(
new (NamedBufferAlloc(Filename))
MemoryBufferMMapFile(RequiresNullTerminator, FD, MapSize, Offset, EC));
if (!EC)
return std::error_code();
return std::move(Result);
}
MemoryBuffer *Buf = MemoryBuffer::getNewUninitMemBuffer(MapSize, Filename);
@ -397,36 +383,29 @@ static std::error_code getOpenFileImpl(int FD, const char *Filename,
BufPtr += NumRead;
}
Result.swap(SB);
return std::error_code();
return std::move(SB);
}
std::error_code MemoryBuffer::getOpenFile(int FD, const char *Filename,
std::unique_ptr<MemoryBuffer> &Result,
uint64_t FileSize,
bool RequiresNullTerminator,
bool IsVolatileSize) {
return getOpenFileImpl(FD, Filename, Result, FileSize, FileSize, 0,
ErrorOr<std::unique_ptr<MemoryBuffer>>
MemoryBuffer::getOpenFile(int FD, const char *Filename, uint64_t FileSize,
bool RequiresNullTerminator, bool IsVolatileSize) {
return getOpenFileImpl(FD, Filename, FileSize, FileSize, 0,
RequiresNullTerminator, IsVolatileSize);
}
std::error_code MemoryBuffer::getOpenFileSlice(
int FD, const char *Filename, std::unique_ptr<MemoryBuffer> &Result,
uint64_t MapSize, int64_t Offset, bool IsVolatileSize) {
return getOpenFileImpl(FD, Filename, Result, -1, MapSize, Offset, false,
ErrorOr<std::unique_ptr<MemoryBuffer>>
MemoryBuffer::getOpenFileSlice(int FD, const char *Filename, uint64_t MapSize,
int64_t Offset, bool IsVolatileSize) {
return getOpenFileImpl(FD, Filename, -1, MapSize, Offset, false,
IsVolatileSize);
}
//===----------------------------------------------------------------------===//
// MemoryBuffer::getSTDIN implementation.
//===----------------------------------------------------------------------===//
std::error_code MemoryBuffer::getSTDIN(std::unique_ptr<MemoryBuffer> &Result) {
ErrorOr<std::unique_ptr<MemoryBuffer>> MemoryBuffer::getSTDIN() {
// Read in all of the data from stdin, we cannot mmap stdin.
//
// FIXME: That isn't necessarily true, we should try to mmap stdin and
// fallback if it fails.
sys::ChangeStdinToBinary();
return getMemoryBufferForStream(0, "<stdin>", Result);
return getMemoryBufferForStream(0, "<stdin>");
}

16
lib/Support/SourceMgr.cpp
View File

@ -52,20 +52,22 @@ SourceMgr::~SourceMgr() {
size_t SourceMgr::AddIncludeFile(const std::string &Filename,
SMLoc IncludeLoc,
std::string &IncludedFile) {
std::unique_ptr<MemoryBuffer> NewBuf;
IncludedFile = Filename;
MemoryBuffer::getFile(IncludedFile.c_str(), NewBuf);
ErrorOr<std::unique_ptr<MemoryBuffer>> NewBufOrErr =
MemoryBuffer::getFile(IncludedFile.c_str());
// If the file didn't exist directly, see if it's in an include path.
for (unsigned i = 0, e = IncludeDirectories.size(); i != e && !NewBuf; ++i) {
IncludedFile = IncludeDirectories[i] + sys::path::get_separator().data() + Filename;
MemoryBuffer::getFile(IncludedFile.c_str(), NewBuf);
for (unsigned i = 0, e = IncludeDirectories.size(); i != e && !NewBufOrErr;
++i) {
IncludedFile =
IncludeDirectories[i] + sys::path::get_separator().data() + Filename;
NewBufOrErr = MemoryBuffer::getFile(IncludedFile.c_str());
}
if (!NewBuf)
if (!NewBufOrErr)
return 0;
return AddNewSourceBuffer(NewBuf.release(), IncludeLoc);
return AddNewSourceBuffer(NewBufOrErr.get().release(), IncludeLoc);
}
unsigned SourceMgr::FindBufferContainingLoc(SMLoc Loc) const {

11
lib/TableGen/Main.cpp
View File

@ -81,13 +81,14 @@ int TableGenMain(char *argv0, TableGenMainFn *MainFn) {
RecordKeeper Records;
// Parse the input file.
std::unique_ptr<MemoryBuffer> File;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, File)) {
errs() << "Could not open input file '" << InputFilename << "': "
<< ec.message() <<"\n";
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = FileOrErr.getError()) {
errs() << "Could not open input file '" << InputFilename
<< "': " << EC.message() << "\n";
return 1;
}
MemoryBuffer *F = File.release();
MemoryBuffer *F = FileOrErr.get().release();
// Tell SrcMgr about this buffer, which is what TGParser will pick up.
SrcMgr.AddNewSourceBuffer(F, SMLoc());

7
lib/Transforms/Scalar/SampleProfile.cpp
View File

@ -450,13 +450,14 @@ void SampleModuleProfile::dump() {
///
/// \returns true if the file was loaded successfully, false otherwise.
bool SampleModuleProfile::loadText() {
std::unique_ptr<MemoryBuffer> Buffer;
std::error_code EC = MemoryBuffer::getFile(Filename, Buffer);
if (EC) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFile(Filename);
if (std::error_code EC = BufferOrErr.getError()) {
std::string Msg(EC.message());
M.getContext().diagnose(DiagnosticInfoSampleProfile(Filename.data(), Msg));
return false;
}
std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOrErr.get());
line_iterator LineIt(*Buffer, '#');
// Read the profile of each function. Since each function may be

7
lib/Transforms/Utils/SpecialCaseList.cpp
View File

@ -54,12 +54,13 @@ SpecialCaseList *SpecialCaseList::create(
const StringRef Path, std::string &Error) {
if (Path.empty())
return new SpecialCaseList();
std::unique_ptr<MemoryBuffer> File;
if (std::error_code EC = MemoryBuffer::getFile(Path, File)) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFile(Path);
if (std::error_code EC = FileOrErr.getError()) {
Error = (Twine("Can't open file '") + Path + "': " + EC.message()).str();
return nullptr;
}
return create(File.get(), Error);
return create(FileOrErr.get().get(), Error);
}
SpecialCaseList *SpecialCaseList::create(

9
tools/gold/gold-plugin.cpp
View File

@ -280,11 +280,14 @@ static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
if (file->offset) {
offset = file->offset;
}
if (std::error_code ec = MemoryBuffer::getOpenFileSlice(
file->fd, file->name, buffer, file->filesize, offset)) {
(*message)(LDPL_ERROR, ec.message().c_str());
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getOpenFileSlice(file->fd, file->name, file->filesize,
offset);
if (std::error_code EC = BufferOrErr.getError()) {
(*message)(LDPL_ERROR, EC.message().c_str());
return LDPS_ERR;
}
buffer = std::move(BufferOrErr.get());
view = buffer->getBufferStart();
}

18
tools/lli/lli.cpp
View File

@ -285,8 +285,8 @@ public:
if (!getCacheFilename(ModuleID, CacheName))
return nullptr;
// Load the object from the cache filename
std::unique_ptr<MemoryBuffer> IRObjectBuffer;
MemoryBuffer::getFile(CacheName.c_str(), IRObjectBuffer, -1, false);
ErrorOr<std::unique_ptr<MemoryBuffer>> IRObjectBuffer =
MemoryBuffer::getFile(CacheName.c_str(), -1, false);
// If the file isn't there, that's OK.
if (!IRObjectBuffer)
return nullptr;
@ -294,7 +294,7 @@ public:
// because the file has probably just been mmapped. Instead we make
// a copy. The filed-based buffer will be released when it goes
// out of scope.
return MemoryBuffer::getMemBufferCopy(IRObjectBuffer->getBuffer());
return MemoryBuffer::getMemBufferCopy(IRObjectBuffer.get()->getBuffer());
}
private:
@ -538,15 +538,15 @@ int main(int argc, char **argv, char * const *envp) {
}
for (unsigned i = 0, e = ExtraArchives.size(); i != e; ++i) {
std::unique_ptr<MemoryBuffer> ArBuf;
std::error_code ec;
ec = MemoryBuffer::getFileOrSTDIN(ExtraArchives[i], ArBuf);
if (ec) {
ErrorOr<std::unique_ptr<MemoryBuffer>> ArBuf =
MemoryBuffer::getFileOrSTDIN(ExtraArchives[i]);
if (!ArBuf) {
Err.print(argv[0], errs());
return 1;
}
object::Archive *Ar = new object::Archive(std::move(ArBuf), ec);
if (ec || !Ar) {
std::error_code EC;
object::Archive *Ar = new object::Archive(std::move(ArBuf.get()), EC);
if (EC || !Ar) {
Err.print(argv[0], errs());
return 1;
}

15
tools/llvm-ar/llvm-ar.cpp
View File

@ -770,10 +770,10 @@ static void performWriteOperation(ArchiveOperation Operation,
const char *Filename = Member.getNew();
int FD = Member.getFD();
const sys::fs::file_status &Status = Member.getStatus();
failIfError(MemoryBuffer::getOpenFile(FD, Filename, MemberBuffer,
Status.getSize(), false),
Filename);
ErrorOr<std::unique_ptr<MemoryBuffer>> MemberBufferOrErr =
MemoryBuffer::getOpenFile(FD, Filename, Status.getSize(), false);
failIfError(MemberBufferOrErr.getError(), Filename);
MemberBuffer = std::move(MemberBufferOrErr.get());
} else {
object::Archive::child_iterator OldMember = Member.getOld();
ErrorOr<std::unique_ptr<MemoryBuffer>> MemberBufferOrErr =
@ -934,8 +934,9 @@ int ar_main(char **argv) {
static int performOperation(ArchiveOperation Operation) {
// Create or open the archive object.
std::unique_ptr<MemoryBuffer> Buf;
std::error_code EC = MemoryBuffer::getFile(ArchiveName, Buf, -1, false);
ErrorOr<std::unique_ptr<MemoryBuffer>> Buf =
MemoryBuffer::getFile(ArchiveName, -1, false);
std::error_code EC = Buf.getError();
if (EC && EC != errc::no_such_file_or_directory) {
errs() << ToolName << ": error opening '" << ArchiveName
<< "': " << EC.message() << "!\n";
@ -943,7 +944,7 @@ static int performOperation(ArchiveOperation Operation) {
}
if (!EC) {
object::Archive Archive(std::move(Buf), EC);
object::Archive Archive(std::move(Buf.get()), EC);
if (EC) {
errs() << ToolName << ": error loading '" << ArchiveName

9
tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
View File

@ -478,10 +478,11 @@ static void PrintSize(uint64_t Bits) {
/// AnalyzeBitcode - Analyze the bitcode file specified by InputFilename.
static int AnalyzeBitcode() {
// Read the input file.
std::unique_ptr<MemoryBuffer> MemBuf;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, MemBuf))
return Error("Error reading '" + InputFilename + "': " + ec.message());
ErrorOr<std::unique_ptr<MemoryBuffer>> MemBufOrErr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = MemBufOrErr.getError())
return Error("Error reading '" + InputFilename + "': " + EC.message());
std::unique_ptr<MemoryBuffer> MemBuf = std::move(MemBufOrErr.get());
if (MemBuf->getBufferSize() & 3)
return Error("Bitcode stream should be a multiple of 4 bytes in length");

20
tools/llvm-cov/llvm-cov.cpp
View File

@ -97,27 +97,29 @@ void reportCoverage(StringRef SourceFile) {
: InputGCDA;
GCOVFile GF;
std::unique_ptr<MemoryBuffer> GCNO_Buff;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(GCNO, GCNO_Buff)) {
errs() << GCNO << ": " << ec.message() << "\n";
ErrorOr<std::unique_ptr<MemoryBuffer>> GCNO_Buff =
MemoryBuffer::getFileOrSTDIN(GCNO);
if (std::error_code EC = GCNO_Buff.getError()) {
errs() << GCNO << ": " << EC.message() << "\n";
return;
}
GCOVBuffer GCNO_GB(GCNO_Buff.get());
GCOVBuffer GCNO_GB(GCNO_Buff.get().get());
if (!GF.readGCNO(GCNO_GB)) {
errs() << "Invalid .gcno File!\n";
return;
}
std::unique_ptr<MemoryBuffer> GCDA_Buff;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(GCDA, GCDA_Buff)) {
if (ec != errc::no_such_file_or_directory) {
errs() << GCDA << ": " << ec.message() << "\n";
ErrorOr<std::unique_ptr<MemoryBuffer>> GCDA_Buff =
MemoryBuffer::getFileOrSTDIN(GCDA);
if (std::error_code EC = GCDA_Buff.getError()) {
if (EC != errc::no_such_file_or_directory) {
errs() << GCDA << ": " << EC.message() << "\n";
return;
}
// Clear the filename to make it clear we didn't read anything.
GCDA = "-";
} else {
GCOVBuffer GCDA_GB(GCDA_Buff.get());
GCOVBuffer GCDA_GB(GCDA_Buff.get().get());
if (!GF.readGCDA(GCDA_GB)) {
errs() << "Invalid .gcda File!\n";
return;

9
tools/llvm-dwarfdump/llvm-dwarfdump.cpp
View File

@ -66,14 +66,15 @@ DumpType("debug-dump", cl::init(DIDT_All),
clEnumValEnd));
static void DumpInput(const StringRef &Filename) {
std::unique_ptr<MemoryBuffer> Buff;
ErrorOr<std::unique_ptr<MemoryBuffer>> Buff =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
errs() << Filename << ": " << ec.message() << "\n";
if (std::error_code EC = Buff.getError()) {
errs() << Filename << ": " << EC.message() << "\n";
return;
}
ErrorOr<ObjectFile *> ObjOrErr(ObjectFile::createObjectFile(Buff));
ErrorOr<ObjectFile *> ObjOrErr(ObjectFile::createObjectFile(Buff.get()));
if (std::error_code EC = ObjOrErr.getError()) {
errs() << Filename << ": " << EC.message() << '\n';
return;

10
tools/llvm-mc/llvm-mc.cpp
View File

@ -367,13 +367,13 @@ int main(int argc, char **argv) {
if (!TheTarget)
return 1;
std::unique_ptr<MemoryBuffer> BufferPtr;
if (std::error_code ec =
MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr)) {
errs() << ProgName << ": " << ec.message() << '\n';
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = BufferPtr.getError()) {
errs() << ProgName << ": " << EC.message() << '\n';
return 1;
}
MemoryBuffer *Buffer = BufferPtr.release();
MemoryBuffer *Buffer = BufferPtr->release();
SourceMgr SrcMgr;

9
tools/llvm-mcmarkup/llvm-mcmarkup.cpp
View File

@ -135,12 +135,13 @@ MarkupTag MarkupParser::parseTag() {
}
static void parseMCMarkup(StringRef Filename) {
std::unique_ptr<MemoryBuffer> BufferPtr;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, BufferPtr)) {
errs() << ToolName << ": " << ec.message() << '\n';
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = BufferPtr.getError()) {
errs() << ToolName << ": " << EC.message() << '\n';
return;
}
MemoryBuffer *Buffer = BufferPtr.release();
MemoryBuffer *Buffer = BufferPtr->release();
SourceMgr SrcMgr;

6
tools/llvm-nm/llvm-nm.cpp
View File

@ -805,9 +805,11 @@ static bool checkMachOAndArchFlags(SymbolicFile *O, std::string &Filename) {
}
static void dumpSymbolNamesFromFile(std::string &Filename) {
std::unique_ptr<MemoryBuffer> Buffer;
if (error(MemoryBuffer::getFileOrSTDIN(Filename, Buffer), Filename))
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (error(BufferOrErr.getError(), Filename))
return;
std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOrErr.get());
LLVMContext &Context = getGlobalContext();
ErrorOr<Binary *> BinaryOrErr = createBinary(Buffer, &Context);

19
tools/llvm-objdump/MachODump.cpp
View File

@ -195,15 +195,15 @@ static void DisassembleInputMachO2(StringRef Filename,
MachOObjectFile *MachOOF);
void llvm::DisassembleInputMachO(StringRef Filename) {
std::unique_ptr<MemoryBuffer> Buff;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n";
ErrorOr<std::unique_ptr<MemoryBuffer>> Buff =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = Buff.getError()) {
errs() << "llvm-objdump: " << Filename << ": " << EC.message() << "\n";
return;
}
std::unique_ptr<MachOObjectFile> MachOOF(static_cast<MachOObjectFile *>(
ObjectFile::createMachOObjectFile(Buff).get()));
ObjectFile::createMachOObjectFile(Buff.get()).get()));
DisassembleInputMachO2(Filename, MachOOF.get());
}
@ -288,12 +288,13 @@ static void DisassembleInputMachO2(StringRef Filename,
// A separate DSym file path was specified, parse it as a macho file,
// get the sections and supply it to the section name parsing machinery.
if (!DSYMFile.empty()) {
std::unique_ptr<MemoryBuffer> Buf;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile, Buf)) {
errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n';
ErrorOr<std::unique_ptr<MemoryBuffer>> Buf =
MemoryBuffer::getFileOrSTDIN(DSYMFile);
if (std::error_code EC = Buf.getError()) {
errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n';
return;
}
DbgObj = ObjectFile::createMachOObjectFile(Buf).get();
DbgObj = ObjectFile::createMachOObjectFile(Buf.get()).get();
}
// Setup the DIContext

47
tools/llvm-rtdyld/llvm-rtdyld.cpp
View File

@ -175,14 +175,16 @@ static int printLineInfoForInput() {
RuntimeDyld Dyld(&MemMgr);
// Load the input memory buffer.
std::unique_ptr<MemoryBuffer> InputBuffer;
std::unique_ptr<ObjectImage> LoadedObject;
if (std::error_code ec =
MemoryBuffer::getFileOrSTDIN(InputFileList[i], InputBuffer))
return Error("unable to read input: '" + ec.message() + "'");
ErrorOr<std::unique_ptr<MemoryBuffer>> InputBuffer =
MemoryBuffer::getFileOrSTDIN(InputFileList[i]);
if (std::error_code EC = InputBuffer.getError())
return Error("unable to read input: '" + EC.message() + "'");
std::unique_ptr<ObjectImage> LoadedObject;
// Load the object file
LoadedObject.reset(Dyld.loadObject(new ObjectBuffer(InputBuffer.release())));
LoadedObject.reset(
Dyld.loadObject(new ObjectBuffer(InputBuffer.get().release())));
if (!LoadedObject) {
return Error(Dyld.getErrorString());
}
@ -236,14 +238,14 @@ static int executeInput() {
InputFileList.push_back("-");
for(unsigned i = 0, e = InputFileList.size(); i != e; ++i) {
// Load the input memory buffer.
std::unique_ptr<MemoryBuffer> InputBuffer;
ErrorOr<std::unique_ptr<MemoryBuffer>> InputBuffer =
MemoryBuffer::getFileOrSTDIN(InputFileList[i]);
if (std::error_code EC = InputBuffer.getError())
return Error("unable to read input: '" + EC.message() + "'");
std::unique_ptr<ObjectImage> LoadedObject;
if (std::error_code ec =
MemoryBuffer::getFileOrSTDIN(InputFileList[i], InputBuffer))
return Error("unable to read input: '" + ec.message() + "'");
// Load the object file
LoadedObject.reset(Dyld.loadObject(new ObjectBuffer(InputBuffer.release())));
LoadedObject.reset(
Dyld.loadObject(new ObjectBuffer(InputBuffer.get().release())));
if (!LoadedObject) {
return Error(Dyld.getErrorString());
}
@ -285,13 +287,14 @@ static int executeInput() {
static int checkAllExpressions(RuntimeDyldChecker &Checker) {
for (const auto& CheckerFileName : CheckFiles) {
std::unique_ptr<MemoryBuffer> CheckerFileBuf;
if (std::error_code EC =
MemoryBuffer::getFileOrSTDIN(CheckerFileName, CheckerFileBuf))
ErrorOr<std::unique_ptr<MemoryBuffer>> CheckerFileBuf =
MemoryBuffer::getFileOrSTDIN(CheckerFileName);
if (std::error_code EC = CheckerFileBuf.getError())
return Error("unable to read input '" + CheckerFileName + "': " +
EC.message());
if (!Checker.checkAllRulesInBuffer("# rtdyld-check:", CheckerFileBuf.get()))
if (!Checker.checkAllRulesInBuffer("# rtdyld-check:",
CheckerFileBuf.get().get()))
return Error("some checks in '" + CheckerFileName + "' failed");
}
return 0;
@ -350,15 +353,15 @@ static int linkAndVerify() {
InputFileList.push_back("-");
for(unsigned i = 0, e = InputFileList.size(); i != e; ++i) {
// Load the input memory buffer.
std::unique_ptr<MemoryBuffer> InputBuffer;
std::unique_ptr<ObjectImage> LoadedObject;
if (std::error_code ec =
MemoryBuffer::getFileOrSTDIN(InputFileList[i], InputBuffer))
return Error("unable to read input: '" + ec.message() + "'");
ErrorOr<std::unique_ptr<MemoryBuffer>> InputBuffer =
MemoryBuffer::getFileOrSTDIN(InputFileList[i]);
if (std::error_code EC = InputBuffer.getError())
return Error("unable to read input: '" + EC.message() + "'");
std::unique_ptr<ObjectImage> LoadedObject;
// Load the object file
LoadedObject.reset(
Dyld.loadObject(new ObjectBuffer(InputBuffer.release())));
Dyld.loadObject(new ObjectBuffer(InputBuffer.get().release())));
if (!LoadedObject) {
return Error(Dyld.getErrorString());
}

7
tools/llvm-symbolizer/LLVMSymbolize.cpp
View File

@ -220,10 +220,11 @@ static std::string getDarwinDWARFResourceForPath(const std::string &Path) {
}
static bool checkFileCRC(StringRef Path, uint32_t CRCHash) {
std::unique_ptr<MemoryBuffer> MB;
if (MemoryBuffer::getFileOrSTDIN(Path, MB))
ErrorOr<std::unique_ptr<MemoryBuffer>> MB =
MemoryBuffer::getFileOrSTDIN(Path);
if (!MB)
return false;
return !zlib::isAvailable() || CRCHash == zlib::crc32(MB->getBuffer());
return !zlib::isAvailable() || CRCHash == zlib::crc32(MB.get()->getBuffer());
}
static bool findDebugBinary(const std::string &OrigPath,

6
tools/lto/lto.cpp
View File

@ -88,10 +88,10 @@ bool lto_module_is_object_file(const char* path) {
bool lto_module_is_object_file_for_target(const char* path,
const char* target_triplet_prefix) {
std::unique_ptr<MemoryBuffer> buffer;
if (MemoryBuffer::getFile(path, buffer))
ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer = MemoryBuffer::getFile(path);
if (!Buffer)
return false;
return LTOModule::isBitcodeForTarget(buffer.get(), target_triplet_prefix);
return LTOModule::isBitcodeForTarget(Buffer->get(), target_triplet_prefix);
}
bool lto_module_is_object_file_in_memory(const void* mem, size_t length) {

7
tools/yaml2obj/yaml2obj.cpp
View File

@ -91,8 +91,9 @@ int main(int argc, char **argv) {
return 1;
}
std::unique_ptr<MemoryBuffer> Buf;
if (MemoryBuffer::getFileOrSTDIN(Input, Buf))
ErrorOr<std::unique_ptr<MemoryBuffer>> Buf =
MemoryBuffer::getFileOrSTDIN(Input);
if (!Buf)
return 1;
ConvertFuncPtr Convert = nullptr;
@ -105,7 +106,7 @@ int main(int argc, char **argv) {
return 1;
}
yaml::Input YIn(Buf->getBuffer());
yaml::Input YIn(Buf.get()->getBuffer());
int Res = convertYAML(YIn, Out->os(), Convert);
if (Res == 0)

15
unittests/Support/MemoryBufferTest.cpp
View File

@ -77,11 +77,11 @@ TEST_F(MemoryBufferTest, NullTerminator4K) {
}
OF.close();
OwningBuffer MB;
std::error_code EC = MemoryBuffer::getFile(TestPath.c_str(), MB);
ErrorOr<OwningBuffer> MB = MemoryBuffer::getFile(TestPath.c_str());
std::error_code EC = MB.getError();
ASSERT_FALSE(EC);
const char *BufData = MB->getBufferStart();
const char *BufData = MB.get()->getBufferStart();
EXPECT_EQ('f', BufData[4095]);
EXPECT_EQ('\0', BufData[4096]);
}
@ -146,15 +146,16 @@ void MemoryBufferTest::testGetOpenFileSlice(bool Reopen) {
EXPECT_FALSE(sys::fs::openFileForRead(TestPath.c_str(), TestFD));
}
OwningBuffer Buf;
std::error_code EC =
MemoryBuffer::getOpenFileSlice(TestFD, TestPath.c_str(), Buf,
ErrorOr<OwningBuffer> Buf =
MemoryBuffer::getOpenFileSlice(TestFD, TestPath.c_str(),
40000, // Size
80000 // Offset
);
std::error_code EC = Buf.getError();
EXPECT_FALSE(EC);
StringRef BufData = Buf->getBuffer();
StringRef BufData = Buf.get()->getBuffer();
EXPECT_EQ(BufData.size(), 40000U);
EXPECT_EQ(BufData[0], '0');
EXPECT_EQ(BufData[9], '9');

23
utils/FileCheck/FileCheck.cpp
View File

@ -820,17 +820,18 @@ static StringRef FindFirstMatchingPrefix(StringRef &Buffer,
/// Returns true in case of an error, false otherwise.
static bool ReadCheckFile(SourceMgr &SM,
std::vector<CheckString> &CheckStrings) {
std::unique_ptr<MemoryBuffer> File;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(CheckFilename, File)) {
errs() << "Could not open check file '" << CheckFilename << "': "
<< ec.message() << '\n';
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(CheckFilename);
if (std::error_code EC = FileOrErr.getError()) {
errs() << "Could not open check file '" << CheckFilename
<< "': " << EC.message() << '\n';
return true;
}
// If we want to canonicalize whitespace, strip excess whitespace from the
// buffer containing the CHECK lines. Remove DOS style line endings.
MemoryBuffer *F =
CanonicalizeInputFile(File.release(), NoCanonicalizeWhiteSpace);
MemoryBuffer *F = CanonicalizeInputFile(FileOrErr.get().release(),
NoCanonicalizeWhiteSpace);
SM.AddNewSourceBuffer(F, SMLoc());
@ -1223,12 +1224,14 @@ int main(int argc, char **argv) {
return 2;
// Open the file to check and add it to SourceMgr.
std::unique_ptr<MemoryBuffer> File;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, File)) {
errs() << "Could not open input file '" << InputFilename << "': "
<< ec.message() << '\n';
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = FileOrErr.getError()) {
errs() << "Could not open input file '" << InputFilename
<< "': " << EC.message() << '\n';
return 2;
}
std::unique_ptr<MemoryBuffer> File = std::move(FileOrErr.get());
if (File->getBufferSize() == 0) {
errs() << "FileCheck error: '" << InputFilename << "' is empty.\n";

6
utils/yaml-bench/YAMLBench.cpp
View File

@ -188,9 +188,11 @@ static std::string createJSONText(size_t MemoryMB, unsigned ValueSize) {
int main(int argc, char **argv) {
llvm::cl::ParseCommandLineOptions(argc, argv);
if (Input.getNumOccurrences()) {
std::unique_ptr<MemoryBuffer> Buf;
if (MemoryBuffer::getFileOrSTDIN(Input, Buf))
ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr =
MemoryBuffer::getFileOrSTDIN(Input);
if (!BufOrErr)
return 1;
std::unique_ptr<MemoryBuffer> Buf = std::move(BufOrErr.get());
llvm::SourceMgr sm;
if (DumpTokens) {