89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
//===- HeaderFile.cpp ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/InstallAPI/HeaderFile.h"
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#include "llvm/TextAPI/Utils.h"
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using namespace llvm;
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namespace clang::installapi {
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llvm::Regex HeaderFile::getFrameworkIncludeRule() {
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return llvm::Regex("/(.+)\\.framework/(.+)?Headers/(.+)");
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}
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std::optional<std::string> createIncludeHeaderName(const StringRef FullPath) {
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// Headers in usr(/local)*/include.
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std::string Pattern = "/include/";
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auto PathPrefix = FullPath.find(Pattern);
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if (PathPrefix != StringRef::npos) {
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PathPrefix += Pattern.size();
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return FullPath.drop_front(PathPrefix).str();
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}
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// Framework Headers.
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SmallVector<StringRef, 4> Matches;
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HeaderFile::getFrameworkIncludeRule().match(FullPath, &Matches);
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// Returned matches are always in stable order.
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if (Matches.size() != 4)
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return std::nullopt;
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return Matches[1].drop_front(Matches[1].rfind('/') + 1).str() + "/" +
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Matches[3].str();
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}
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bool isHeaderFile(StringRef Path) {
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return StringSwitch<bool>(sys::path::extension(Path))
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.Cases(".h", ".H", ".hh", ".hpp", ".hxx", true)
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.Default(false);
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}
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llvm::Expected<PathSeq> enumerateFiles(FileManager &FM, StringRef Directory) {
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PathSeq Files;
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std::error_code EC;
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auto &FS = FM.getVirtualFileSystem();
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for (llvm::vfs::recursive_directory_iterator i(FS, Directory, EC), ie;
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i != ie; i.increment(EC)) {
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if (EC)
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return errorCodeToError(EC);
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// Skip files that do not exist. This usually happens for broken symlinks.
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if (FS.status(i->path()) == std::errc::no_such_file_or_directory)
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continue;
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StringRef Path = i->path();
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if (isHeaderFile(Path))
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Files.emplace_back(Path);
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}
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return Files;
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}
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HeaderGlob::HeaderGlob(StringRef GlobString, Regex &&Rule, HeaderType Type)
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: GlobString(GlobString), Rule(std::move(Rule)), Type(Type) {}
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bool HeaderGlob::match(const HeaderFile &Header) {
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if (Header.getType() != Type)
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return false;
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bool Match = Rule.match(Header.getPath());
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if (Match)
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FoundMatch = true;
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return Match;
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}
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Expected<std::unique_ptr<HeaderGlob>> HeaderGlob::create(StringRef GlobString,
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HeaderType Type) {
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auto Rule = MachO::createRegexFromGlob(GlobString);
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if (!Rule)
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return Rule.takeError();
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return std::make_unique<HeaderGlob>(GlobString, std::move(*Rule), Type);
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}
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} // namespace clang::installapi
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