LLVM  9.0.0svn
SupportHelpers.cpp
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1 
3 
4 #include "llvm/ADT/SmallString.h"
5 #include "llvm/ADT/Twine.h"
6 #include "llvm/Support/Error.h"
9 #include "llvm/Support/Path.h"
10 
11 #include "gtest/gtest.h"
12 
13 using namespace llvm;
14 using namespace llvm::unittest;
15 
16 static std::pair<bool, SmallString<128>> findSrcDirMap(StringRef Argv0) {
18 
20 
21  SmallString<128> PathInSameDir = BaseDir;
22  llvm::sys::path::append(PathInSameDir, "llvm.srcdir.txt");
23 
24  if (llvm::sys::fs::is_regular_file(PathInSameDir))
25  return std::make_pair(true, std::move(PathInSameDir));
26 
27  SmallString<128> PathInParentDir = llvm::sys::path::parent_path(BaseDir);
28 
29  llvm::sys::path::append(PathInParentDir, "llvm.srcdir.txt");
30  if (llvm::sys::fs::is_regular_file(PathInParentDir))
31  return std::make_pair(true, std::move(PathInParentDir));
32 
33  return std::pair<bool, SmallString<128>>(false, {});
34 }
35 
37  bool Found = false;
38  SmallString<128> InputFilePath;
39  std::tie(Found, InputFilePath) = findSrcDirMap(Argv0);
40 
41  EXPECT_TRUE(Found) << "Unit test source directory file does not exist.";
42 
43  auto File = MemoryBuffer::getFile(InputFilePath);
44 
45  EXPECT_TRUE(static_cast<bool>(File))
46  << "Could not open unit test source directory file.";
47 
48  InputFilePath.clear();
49  InputFilePath.append((*File)->getBuffer().trim());
50  llvm::sys::path::append(InputFilePath, "Inputs");
51  llvm::sys::path::native(InputFilePath);
52  return InputFilePath;
53 }
void native(const Twine &path, SmallVectorImpl< char > &result, Style style=Style::native)
Convert path to the native form.
Definition: Path.cpp:521
This class represents lattice values for constants.
Definition: AllocatorList.h:23
bool is_regular_file(const basic_file_status &status)
Does status represent a regular file?
Definition: Path.cpp:1051
void append(SmallVectorImpl< char > &path, const Twine &a, const Twine &b="", const Twine &c="", const Twine &d="")
Append to path.
Definition: Path.cpp:454
void make_absolute(const Twine &current_directory, SmallVectorImpl< char > &path)
Make path an absolute path.
Definition: Path.cpp:852
void append(in_iter S, in_iter E)
Append from an iterator pair.
Definition: SmallString.h:74
Instrumentation for Order File
static std::pair< bool, SmallString< 128 > > findSrcDirMap(StringRef Argv0)
StringRef parent_path(StringRef path, Style style=Style::native)
Get parent path.
Definition: Path.cpp:465
SmallString< 128 > getInputFileDirectory(const char *Argv0)
static ErrorOr< std::unique_ptr< MemoryBuffer > > getFile(const Twine &Filename, int64_t FileSize=-1, bool RequiresNullTerminator=true, bool IsVolatile=false)
Open the specified file as a MemoryBuffer, returning a new MemoryBuffer if successful, otherwise returning null.
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48