clang 19.0.0git
SerializablePathCollection.cpp
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1//===--- SerializablePathCollection.cpp -- Index of paths -------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
10#include "llvm/Support/Path.h"
11
12using namespace llvm;
13using namespace clang;
14using namespace clang::index;
15
17 const std::size_t Offset = Buffer.size();
18 Buffer += Str;
19 return StringPool::StringOffsetSize(Offset, Str.size());
20}
21
24 StringRef Filename) {
25 FilePaths.emplace_back(DirPath(Root, Dir), Paths.add(Filename));
26 return FilePaths.size() - 1;
27}
28
30 return Paths.add(Dir);
31}
32
34 return FilePaths;
35}
36
37StringRef PathPool::getPaths() const { return Paths.getBuffer(); }
38
40 StringRef CurrentWorkDir, StringRef SysRoot, llvm::StringRef OutputFile)
41 : WorkDir(CurrentWorkDir),
42 SysRoot(llvm::sys::path::parent_path(SysRoot).empty() ? StringRef()
43 : SysRoot),
44 WorkDirPath(Paths.addDirPath(WorkDir)),
45 SysRootPath(Paths.addDirPath(SysRoot)),
46 OutputFilePath(Paths.addDirPath(OutputFile)) {}
47
49 auto FileIt = UniqueFiles.find(FE);
50 if (FileIt != UniqueFiles.end())
51 return FileIt->second;
52
53 const auto Dir = tryStoreDirPath(sys::path::parent_path(FE.getName()));
54 const auto FileIdx =
55 Paths.addFilePath(Dir.Root, Dir.Path, sys::path::filename(FE.getName()));
56
57 UniqueFiles.try_emplace(FE, FileIdx);
58 return FileIdx;
59}
60
61PathPool::DirPath SerializablePathCollection::tryStoreDirPath(StringRef Dir) {
62 // We don't want to strip separator if Dir is "/" - so we check size > 1.
63 while (Dir.size() > 1 && llvm::sys::path::is_separator(Dir.back()))
64 Dir = Dir.drop_back();
65
66 auto DirIt = UniqueDirs.find(Dir);
67 if (DirIt != UniqueDirs.end())
68 return DirIt->second;
69
70 const std::string OrigDir = Dir.str();
71
73 if (!SysRoot.empty() && Dir.starts_with(SysRoot) &&
74 llvm::sys::path::is_separator(Dir[SysRoot.size()])) {
76 Dir = Dir.drop_front(SysRoot.size());
77 } else if (!WorkDir.empty() && Dir.starts_with(WorkDir) &&
78 llvm::sys::path::is_separator(Dir[WorkDir.size()])) {
80 Dir = Dir.drop_front(WorkDir.size());
81 }
82
84 while (!Dir.empty() && llvm::sys::path::is_separator(Dir.front()))
85 Dir = Dir.drop_front();
86 }
87
88 PathPool::DirPath Result(Root, Paths.addDirPath(Dir));
89 UniqueDirs.try_emplace(OrigDir, Result);
90 return Result;
91}
StringRef Filename
Definition: Format.cpp:2980
A reference to a FileEntry that includes the name of the file as it was accessed by the FileManager's...
Definition: FileEntry.h:57
StringRef getName() const
The name of this FileEntry.
Definition: FileEntry.h:61
size_t addFilePath(RootDirKind Root, const StringPool::StringOffsetSize &Dir, StringRef Filename)
StringPool::StringOffsetSize addDirPath(StringRef Dir)
llvm::ArrayRef< FilePath > getFilePaths() const
RootDirKind
Special root directory of a filesystem path.
size_t tryStoreFilePath(FileEntryRef FE)
Stores path to FE if it hasn't been stored yet.
SerializablePathCollection(llvm::StringRef CurrentWorkDir, llvm::StringRef SysRoot, llvm::StringRef OutputFile)
StringOffsetSize add(StringRef Str)
The JSON file list parser is used to communicate input to InstallAPI.
@ Result
The result type of a method or function.
YAML serialization mapping.
Definition: Dominators.h:30