clang-tools-extra/include-fixer/YamlSymbolIndex.cpp

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//===-- YamlSymbolIndex.cpp -----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "YamlSymbolIndex.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/Errc.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include <string>
#include <vector>
using clang::find_all_symbols::SymbolInfo;
namespace clang {
namespace include_fixer {
llvm::ErrorOr<std::unique_ptr<YamlSymbolIndex>>
YamlSymbolIndex::createFromFile(llvm::StringRef FilePath) {
auto Buffer = llvm::MemoryBuffer::getFile(FilePath);
if (!Buffer)
return Buffer.getError();
return std::unique_ptr<YamlSymbolIndex>(
new YamlSymbolIndex(clang::find_all_symbols::ReadSymbolInfosFromYAML(
Buffer.get()->getBuffer())));
}
llvm::ErrorOr<std::unique_ptr<YamlSymbolIndex>>
YamlSymbolIndex::createFromDirectory(llvm::StringRef Directory,
llvm::StringRef Name) {
// Walk upwards from Directory, looking for files.
for (llvm::SmallString<128> PathStorage = Directory; !Directory.empty();
Directory = llvm::sys::path::parent_path(Directory)) {
assert(Directory.size() <= PathStorage.size());
PathStorage.resize(Directory.size()); // Shrink to parent.
llvm::sys::path::append(PathStorage, Name);
if (auto DB = createFromFile(PathStorage))
return DB;
}
return llvm::make_error_code(llvm::errc::no_such_file_or_directory);
}
std::vector<SymbolInfo> YamlSymbolIndex::search(llvm::StringRef Identifier) {
std::vector<SymbolInfo> Results;
for (const auto &Symbol : Symbols) {
if (Symbol.getName() == Identifier)
Results.push_back(Symbol);
}
return Results;
}
} // namespace include_fixer
} // namespace clang